Merge pull request #2173 from monopole/kyamlTo_v0.0.10

kyaml patch increment to 0.0.10

.golangci-kustomize.yml

@@ -7,8 +7,13 @@ linters:
     - bodyclose
     - deadcode
     - depguard
+    # - dogsled
     - dupl
+    # - errcheck
+    # - funlen
+    # - gochecknoinits
     - goconst
+    # - gocritic
     - gocyclo
     - gofmt
     - goimports
@@ -21,6 +26,7 @@ linters:
     - lll
     - misspell
     - nakedret
+    # - scopelint
     - staticcheck
     - structcheck
     # stylecheck demands that acronyms not be treated as words
@@ -28,9 +34,10 @@ linters:
     # - stylecheck
     - typecheck
     - unconvert
-    - unused
     - unparam
+    - unused
     - varcheck
+    # - whitespace
 
 linters-settings:
   dupl:

.travis.yml

@@ -34,9 +34,9 @@ before_install:
 install: true
 
 script:
-  - ./travis/verify-deps.sh
   - make verify-kustomize
   - ./travis/kyaml-pre-commit.sh
+  - ./travis/check-go-mod.sh
 
 # TBD. Suppressing for now.
 notifications:

Makefile

@@ -17,6 +17,9 @@ verify-kustomize: \
 	test-examples-kustomize-against-HEAD \
 	test-examples-kustomize-against-latest
 
+.PHONY: verify-kustomize-e2e
+verify-kustomize-e2e: test-examples-e2e-kustomize
+
 # Other builds in this repo might want a different linter version.
 # Without one Makefile to rule them all, the different makes
 # cannot assume that golanci-lint is at the version they want
@@ -48,6 +51,11 @@ $(MYGOBIN)/goimports:
 	cd api; \
 	go install golang.org/x/tools/cmd/goimports
 
+# Install resource from whatever is checked out.
+$(MYGOBIN)/resource:
+	cd cmd/resource; \
+	go install .
+
 # To pin pluginator, use this recipe instead:
 #   cd api;
 #   go install sigs.k8s.io/kustomize/pluginator/v2
@@ -152,6 +160,14 @@ $(pGen)/%.go: $(MYGOBIN)/pluginator
 .PHONY: generate-kustomize-builtin-plugins
 generate-kustomize-builtin-plugins: $(builtinplugins)
 
+.PHONY: kustomize-external-go-plugin-build
+kustomize-external-go-plugin-build:
+	./hack/buildExternalGoPlugins.sh ./plugin
+
+.PHONY: kustomize-external-go-plugin-clean
+kustomize-external-go-plugin-clean:
+	./hack/buildExternalGoPlugins.sh ./plugin clean
+
 ### End kustomize plugin rules.
 
 .PHONY: lint-kustomize
@@ -185,6 +201,16 @@ test-unit-kustomize-all: \
 test-examples-kustomize-against-HEAD: $(MYGOBIN)/kustomize $(MYGOBIN)/mdrip
 	./hack/testExamplesAgainstKustomize.sh HEAD
 
+.PHONY:
+test-examples-e2e-kustomize: $(MYGOBIN)/mdrip $(MYGOBIN)/kind
+	( \
+		set -e; \
+		/bin/rm -f $(MYGOBIN)/kustomize; \
+		echo "Installing kustomize from ."; \
+		cd kustomize; go install .; cd ..; \
+		./hack/testExamplesE2EAgainstKustomize.sh .; \
+	)
+
 .PHONY:
 test-examples-kustomize-against-latest: $(MYGOBIN)/mdrip
 	( \
@@ -229,8 +255,18 @@ $(MYGOBIN)/helm:
 		rm -rf $$d \
 	)
 
+$(MYGOBIN)/kind:
+	( \
+        set -e; \
+        d=$(shell mktemp -d); cd $$d; \
+        wget -O ./kind https://github.com/kubernetes-sigs/kind/releases/download/v0.7.0/kind-$(shell uname)-amd64; \
+        chmod +x ./kind; \
+        mv ./kind $(MYGOBIN); \
+        rm -rf $$d; \
+	)
+
 .PHONY: clean
-clean:
+clean: kustomize-external-go-plugin-clean
 	go clean --cache
 	rm -f $(builtinplugins)
 	rm -f $(MYGOBIN)/pluginator

api/builtins/NamespaceTransformer.go

@@ -52,7 +52,7 @@ func (p *NamespaceTransformerPlugin) Transform(m resmap.ResMap) error {
 
 		matches := m.GetMatchingResourcesByCurrentId(r.CurId().Equals)
 		if len(matches) != 1 {
-			return fmt.Errorf("namespace tranformation produces ID conflict: %#v", matches)
+			return fmt.Errorf("namespace tranformation produces ID conflict: %+v", matches)
 		}
 	}
 	return nil

api/go.mod

@@ -6,12 +6,13 @@ require (
 	github.com/evanphx/json-patch v4.5.0+incompatible
 	github.com/go-openapi/spec v0.19.4
 	github.com/golangci/golangci-lint v1.21.0
-	github.com/monopole/mdrip v1.0.0
+	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/pkg/errors v0.8.1
 	golang.org/x/tools v0.0.0-20191010075000-0337d82405ff
 	gopkg.in/yaml.v2 v2.2.4
+	k8s.io/api v0.17.0
+	k8s.io/apimachinery v0.17.0
+	k8s.io/client-go v0.17.0
 	k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a
-	sigs.k8s.io/kustomize/pluginator/v2 v2.0.0
-	sigs.k8s.io/kustomize/pseudo/k8s v0.1.0
 	sigs.k8s.io/yaml v1.1.0
 )

api/go.sum

@@ -1,14 +1,11 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest v0.9.2/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
 github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/adal v0.8.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
 github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
 github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
 github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
 github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
 github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
@@ -47,12 +44,11 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
-github.com/docker/spdystream v0.0.0-20181023171402-6480d4af844c/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
-github.com/elazarl/goproxy v0.0.0-20191011121108-aa519ddbe484/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM=
-github.com/elazarl/goproxy/ext v0.0.0-20190711103511-473e67f1d7d2/go.mod h1:gNh8nYJoAm43RfaxurUnxr+N1PwuFV3ZMl/efxlIlY8=
+github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
+github.com/elazarl/goproxy v0.0.0-20170405201442-c4fc26588b6e/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
+github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633 h1:H2pdYOb3KQ1/YsqVWoWNLQO+fusocsw354rqGTZtAgw=
 github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/emicklei/go-restful v2.9.6+incompatible h1:tfrHha8zJ01ywiOEC1miGY8st1/igzWB8OmvPgoYX7w=
-github.com/emicklei/go-restful v2.9.6+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
+github.com/evanphx/json-patch v4.2.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/evanphx/json-patch v4.5.0+incompatible h1:ouOWdg56aJriqS0huScTkVXPC5IcNrDCXZ6OoTAWu7M=
 github.com/evanphx/json-patch v4.5.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
@@ -112,13 +108,14 @@ github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b h1:ekuhfTjngPhisSjOJ0Q
 github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
-github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
-github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
+github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d h1:3PaI8p3seN09VjbTYC/QWlUZdZ1qS1zGjy7LH2Wt07I=
+github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
-github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v0.0.0-20161109072736-4bd1920723d7/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -136,18 +133,12 @@ github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3 h1:pe9JHs3cHHDQgO
 github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3/go.mod h1:JXrF4TWy4tXYn62/9x8Wm/K/dm06p8tCKwFRDPZG/1o=
 github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee h1:J2XAy40+7yz70uaOiMbNnluTg7gyQhtGqLQncQh+4J8=
 github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
-github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98 h1:0OkFarm1Zy2CjCiDKfK9XHgmc2wbDlRMD2hD8anAJHU=
-github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
 github.com/golangci/gofmt v0.0.0-20190930125516-244bba706f1a h1:iR3fYXUjHCR97qWS8ch1y9zPNsgXThGwjKPrYfqMPks=
 github.com/golangci/gofmt v0.0.0-20190930125516-244bba706f1a/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
-github.com/golangci/golangci-lint v1.19.1 h1:g9xL8KW7UZDCkVlgHYJMA6F4Sj/sRVa0FoCeXI+Z3iM=
-github.com/golangci/golangci-lint v1.19.1/go.mod h1:2CEc4Fxx3vxDv7g8DyXkHCBF73AOzAymcJAprs2vCps=
 github.com/golangci/golangci-lint v1.21.0 h1:HxAxpR8Z0M8omihvQdsD3PF0qPjlqYqp2vMJzstoKeI=
 github.com/golangci/golangci-lint v1.21.0/go.mod h1:phxpHK52q7SE+5KpPnti4oZTdFCEsn/tKN+nFvCKXfk=
 github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc h1:gLLhTLMk2/SutryVJ6D4VZCU3CUqr8YloG7FPIBWFpI=
 github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc/go.mod h1:e5tpTHCfVze+7EpLEozzMB3eafxo2KT5veNg1k6byQU=
-github.com/golangci/lint-1 v0.0.0-20190420132249-ee948d087217 h1:En/tZdwhAn0JNwLuXzP3k2RVtMqMmOEK7Yu/g3tmtJE=
-github.com/golangci/lint-1 v0.0.0-20190420132249-ee948d087217/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
 github.com/golangci/lint-1 v0.0.0-20191013205115-297bf364a8e0 h1:MfyDlzVjl1hoaPzPD4Gpb/QgoRfSBR0jdhwGyAWwMSA=
 github.com/golangci/lint-1 v0.0.0-20191013205115-297bf364a8e0/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
 github.com/golangci/maligned v0.0.0-20180506175553-b1d89398deca h1:kNY3/svz5T29MYHubXix4aDDuE3RWHkPvopM/EDv/MA=
@@ -160,37 +151,33 @@ github.com/golangci/revgrep v0.0.0-20180526074752-d9c87f5ffaf0 h1:HVfrLniijszjS1
 github.com/golangci/revgrep v0.0.0-20180526074752-d9c87f5ffaf0/go.mod h1:qOQCunEYvmd/TLamH+7LlVccLvUH5kZNhbCgTHoBbp4=
 github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4 h1:zwtduBRr5SSWhqsYNgcuWO2kFlpdOZbP0+yRjmvPGys=
 github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4/go.mod h1:Izgrg8RkN3rCIMLGE9CyYmU9pY2Jer6DgANEnZ/L/cQ=
+github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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-github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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@@ -202,6 +189,7 @@ github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22
 github.com/json-iterator/go v0.0.0-20180612202835-f2b4162afba3/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
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@@ -229,12 +217,8 @@ github.com/mailru/easyjson v0.0.0-20160728113105-d5b7844b561a/go.mod h1:C1wdFJiN
 github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
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@@ -253,8 +237,6 @@ github.com/modern-go/reflect2 v0.0.0-20180320133207-05fbef0ca5da/go.mod h1:bx2lN
 github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
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@@ -289,13 +271,8 @@ github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7z
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@@ -304,8 +281,6 @@ github.com/shurcooL/go v0.0.0-20180423040247-9e1955d9fb6e h1:MZM7FHLqUHYI0Y/mQAt
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-github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
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@@ -338,8 +313,6 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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@@ -347,8 +320,6 @@ github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGr
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@@ -360,17 +331,22 @@ github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV
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+go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
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+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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+golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
+golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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@@ -381,21 +357,23 @@ golang.org/x/net v0.0.0-20180911220305-26e67e76b6c3/go.mod h1:mL1N/T3taQHkDXs73r
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@@ -427,24 +406,28 @@ golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGm
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@@ -466,8 +449,15 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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@@ -475,20 +465,13 @@ k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
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 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=

api/internal/accumulator/loadconfigfromcrds_test.go

@@ -42,7 +42,7 @@ More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#ty
 					"type": "string"
 				},
 				"metadata": {
-					"$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+					"$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
 				},
 				"spec": {
 					"$ref": "github.com/example/pkg/apis/jingfang/v1beta1.BeeSpec"
@@ -55,7 +55,7 @@ More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#ty
 		"Dependencies": [
 			"github.com/example/pkg/apis/jingfang/v1beta1.BeeSpec",
 			"github.com/example/pkg/apis/jingfang/v1beta1.BeeStatus",
-			"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+			"k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
 		]
 	},
 	"github.com/example/pkg/apis/jingfang/v1beta1.BeeSpec": {
@@ -87,7 +87,7 @@ In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-con
 					"type": "string"
 				},
 				"metadata": {
-					"$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+					"$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
 				},
 				"spec": {
 					"$ref": "github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec"
@@ -100,7 +100,7 @@ In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-con
 		"Dependencies": [
 			"github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec",
 			"github.com/example/pkg/apis/jingfang/v1beta1.MyKindStatus",
-			"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+			"k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
 		]
 	},
 	"github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec": {
@@ -117,13 +117,13 @@ In CamelCase. More info: https://git.k8s.io/community/contributors/devel/api-con
 If it is not set we generate a secret dynamically",
 					"x-kubernetes-object-ref-api-version": "v1",
 					"x-kubernetes-object-ref-kind": "Secret",
-					"$ref": "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1.LocalObjectReference"
+					"$ref": "k8s.io/api/core/v1.LocalObjectReference"
 				}
 			}
 		},
 		"Dependencies": [
 			"github.com/example/pkg/apis/jingfang/v1beta1.Bee",
-			"sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1.LocalObjectReference"
+			"k8s.io/api/core/v1.LocalObjectReference"
 		]
 	},
 	"github.com/example/pkg/apis/jingfang/v1beta1.MyKindStatus": {

api/internal/crawl/backend/search_backend.go

@@ -44,7 +44,7 @@ type kustomizeSearch struct {
 // /register: not implemented, but meant as an endpoint for adding new
 // kustomization files to the corpus.
 func NewKustomizeSearch(ctx context.Context) (*kustomizeSearch, error) {
-	idx, err := index.NewKustomizeIndex(ctx)
+	idx, err := index.NewKustomizeIndex(ctx, "kustomize")
 	if err != nil {
 		return nil, err
 	}

api/internal/crawl/cmd/crawler/crawler.go

@@ -2,11 +2,15 @@ package main
 
 import (
 	"context"
+	"flag"
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"time"
 
+	"sigs.k8s.io/kustomize/api/internal/crawl/utils"
+
 	"sigs.k8s.io/kustomize/api/internal/crawl/crawler"
 	"sigs.k8s.io/kustomize/api/internal/crawl/crawler/github"
 	"sigs.k8s.io/kustomize/api/internal/crawl/doc"
@@ -23,71 +27,189 @@ const (
 	retryCount           = 3
 )
 
+type CrawlMode int
+
+const (
+	CrawlUnknown CrawlMode = iota
+	// Crawl all the kustomization files in all the repositories of a Github user
+	CrawlUser
+	// Crawl all the kustomization files in a Github repo
+	CrawlRepo
+	// Crawl all the documents in the index
+	CrawlIndex
+	// Crawl all the kustomization files on Github
+	CrawlGithub
+	// Crawl all the documents in the index and crawling all the kustomization files on Github
+	CrawlIndexAndGithub
+)
+
+func NewCrawlMode(s string) CrawlMode {
+	switch s {
+	case "github-user":
+		return CrawlUser
+	case "github-repo":
+		return CrawlRepo
+	case "index+github":
+		return CrawlIndexAndGithub
+	case "index":
+		return CrawlIndex
+	case "github":
+		return CrawlGithub
+	default:
+		return CrawlUnknown
+	}
+}
+
 func main() {
+	indexNamePtr := flag.String(
+		"index", "kustomize", "The name of the ElasticSearch index.")
+	modePtr := flag.String("mode", "index+github",
+		`The crawling mode, which can be one of [github-user, github-repo, index, github, index+github].
+  * github-user: crawl all the kustomization files in all the repositories of a Github user (--github-user must be specified for this mode).
+  * github-repo: crawl all the kustomization files in a Github repository (--github-repo must be specified for this mode).
+  * index: crawl all the documents in the index.
+  * gihub: crawl all the kustomization files on Github.
+  * index+github: crawl all the documents in the index and crawling all the kustomization files on Github.`)
+	githubUserPtr := flag.String("github-user", "",
+		"A github user name (e.g., kubernetes-sigs). This flag is required for the `github-user` mode.")
+	githubRepoPtr := flag.String("github-repo", "",
+		"A github repository name (e.g., kubernetes-sigs/kustomize). This flag is required for the `github-repo` mode.")
+	flag.Parse()
+
 	githubToken := os.Getenv(githubAccessTokenVar)
 	if githubToken == "" {
-		fmt.Printf("Must set the variable '%s' to make github requests.\n",
+		log.Printf("Must set the variable '%s' to make github requests.\n",
 			githubAccessTokenVar)
 		return
 	}
 
 	ctx := context.Background()
-	idx, err := index.NewKustomizeIndex(ctx)
+	idx, err := index.NewKustomizeIndex(ctx, *indexNamePtr)
 	if err != nil {
-		fmt.Printf("Could not create an index: %v\n", err)
+		log.Printf("Could not create an index: %v\n", err)
 		return
 	}
 
 	cacheURL := os.Getenv(redisCacheURL)
-
-	query := []byte(`{ "query":{ "match_all":{} } }`)
-	it := idx.IterateQuery(query, 10000, 60*time.Second)
-	docs := make(crawler.CrawlSeed, 0)
-	for it.Next() {
-		for _, hit := range it.Value().Hits.Hits {
-			docs = append(docs, hit.Document.Copy())
-		}
-	}
-
-	if err := it.Err(); err != nil {
-		fmt.Printf("Error iterating: %v\n", err)
-	}
-
 	cache, err := redis.DialURL(cacheURL)
 	clientCache := &http.Client{}
 	if err != nil {
-		fmt.Printf("Error: redis could not make a connection: %v\n", err)
+		log.Printf("Error: redis could not make a connection: %v\n", err)
 	} else {
 		clientCache = httpclient.NewClient(cache)
 	}
 
-	ghCrawler := github.NewCrawler(githubToken, retryCount, clientCache,
-		github.QueryWith(
-			github.Filename("kustomization.yaml"),
-			github.Filename("kustomization.yml")),
-	)
+	// docConverter takes in a plain document and processes it for the index.
+	docConverter := func(d *doc.Document) (crawler.CrawledDocument, error) {
+		kdoc := doc.KustomizationDocument{
+			Document: *d,
+		}
 
-	crawler.CrawlFromSeed(ctx, docs, []crawler.Crawler{ghCrawler},
-		// Converter takes in a plain document and processes it for the
-		// index.
-		func(d *doc.Document) (crawler.CrawledDocument, error) {
-			kdoc := doc.KustomizationDocument{
-				Document: *d,
-			}
+		err := kdoc.ParseYAML()
+		return &kdoc, err
+	}
 
-			err := kdoc.ParseYAML()
-			return &kdoc, err
-		},
-		// IndexFunc updates the value in the index.
-		func(cdoc crawler.CrawledDocument, crwlr crawler.Crawler) error {
-			switch d := cdoc.(type) {
-			case *doc.KustomizationDocument:
-				fmt.Println("Inserting: ", d.ID(), d)
-				_, err := idx.Put(d.ID(), d)
-				return err
+	// Index updates the value in the index.
+	indexFunc := func(cdoc crawler.CrawledDocument, mode index.Mode) error {
+		switch d := cdoc.(type) {
+		case *doc.KustomizationDocument:
+			switch mode {
+			case index.Delete:
+				log.Printf("Deleting: %v", d)
+				return idx.Delete(d.ID())
 			default:
-				return fmt.Errorf("type %T not supported", d)
+				log.Printf("Inserting: %v", d)
+				return idx.Put(d.ID(), d)
 			}
-		},
-	)
+		default:
+			return fmt.Errorf("type %T not supported", d)
+		}
+	}
+
+	// seen tracks the IDs of all the documents in the index and their corresponding file types.
+	// This helps avoid indexing a given document multiple times.
+	seen := utils.NewSeenMap()
+
+	mode := NewCrawlMode(*modePtr)
+
+	ghCrawlerConstructor := func(user, repo string) crawler.Crawler {
+		if user != "" {
+			return github.NewCrawler(githubToken, retryCount, clientCache,
+				github.QueryWith(
+					github.Filename("kustomization.yaml"),
+					github.Filename("kustomization.yml"),
+					github.Filename("kustomization"),
+					github.User(user)),
+			)
+		} else if repo != "" {
+			return github.NewCrawler(githubToken, retryCount, clientCache,
+				github.QueryWith(
+					github.Filename("kustomization.yaml"),
+					github.Filename("kustomization.yml"),
+					github.Filename("kustomization"),
+					github.Repo(repo)),
+			)
+		} else {
+			return github.NewCrawler(githubToken, retryCount, clientCache,
+				github.QueryWith(
+					github.Filename("kustomization.yaml"),
+					github.Filename("kustomization.yml"),
+					github.Filename("kustomization")),
+			)
+		}
+	}
+
+	seedDocs := make(crawler.CrawlSeed, 0)
+
+	// get all the documents in the index
+	getSeedDocsFunc := func() {
+		query := []byte(`{ "query":{ "match_all":{} } }`)
+		it := idx.IterateQuery(query, 10000, 60*time.Second)
+		for it.Next() {
+			for _, hit := range it.Value().Hits.Hits {
+				seedDocs = append(seedDocs, hit.Document.Document.Copy())
+			}
+		}
+		if err := it.Err(); err != nil {
+			log.Fatalf("getSeedDocsFunc Error iterating: %v\n", err)
+		}
+	}
+
+	switch mode {
+	case CrawlIndexAndGithub:
+		getSeedDocsFunc()
+		crawlers := []crawler.Crawler{ghCrawlerConstructor("", "")}
+		crawler.CrawlFromSeed(ctx, seedDocs, crawlers, docConverter, indexFunc, seen)
+		crawler.CrawlGithub(ctx, crawlers, docConverter, indexFunc, seen)
+	case CrawlIndex:
+		getSeedDocsFunc()
+		crawlers := []crawler.Crawler{ghCrawlerConstructor("", "")}
+		crawler.CrawlFromSeed(ctx, seedDocs, crawlers, docConverter, indexFunc, seen)
+	case CrawlGithub:
+		crawlers := []crawler.Crawler{ghCrawlerConstructor("", "")}
+		// add all the documents in the index into seen.
+		// this greatly reduces the time overhead of CrawlGithub.
+		getSeedDocsFunc()
+		for _, d := range seedDocs {
+			seen[d.ID()] = d.FileType
+		}
+		crawler.CrawlGithub(ctx, crawlers, docConverter, indexFunc, seen)
+	case CrawlUser:
+		if *githubUserPtr == "" {
+			flag.Usage()
+			log.Fatalf("Please specify a github user with the github-user flag!")
+		}
+		crawlers := []crawler.Crawler{ghCrawlerConstructor(*githubUserPtr, "")}
+		crawler.CrawlGithub(ctx, crawlers, docConverter, indexFunc, seen)
+	case CrawlRepo:
+		if *githubRepoPtr == "" {
+			flag.Usage()
+			log.Fatalf("Please specify a github repository with the github-repo flag!")
+		}
+		crawlers := []crawler.Crawler{ghCrawlerConstructor("", *githubRepoPtr)}
+		crawler.CrawlGithub(ctx, crawlers, docConverter, indexFunc, seen)
+	case CrawlUnknown:
+		flag.Usage()
+		log.Fatalf("The --mode flag must be one of [github-user, github-repo, index, github, index+github].")
+	}
 }

api/internal/crawl/cmd/kustomize_stats/Dockerfile

@@ -0,0 +1,14 @@
+FROM golang:1.11 AS build
+
+ARG GO111MODULE=on
+
+WORKDIR /go/src/sigs.k8s.io/kustomize/api/internal/crawl
+COPY . /go/src/sigs.k8s.io/kustomize/api/internal/crawl
+
+RUN go mod download
+RUN CGO_ENABLED=0 go install ./cmd/kustomize_stats
+
+FROM scratch
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=build /go/bin/kustomize_stats /
+ENTRYPOINT ["/kustomize_stats"]

api/internal/crawl/cmd/kustomize_stats/main.go

@@ -0,0 +1,254 @@
+package main
+
+import (
+	"context"
+	"crypto/sha256"
+	"flag"
+	"fmt"
+	"log"
+	"sort"
+	"time"
+
+	"sigs.k8s.io/kustomize/api/internal/crawl/doc"
+
+	"sigs.k8s.io/kustomize/api/internal/crawl/index"
+)
+
+const (
+	githubAccessTokenVar = "GITHUB_ACCESS_TOKEN"
+	retryCount           = 3
+)
+
+// iterateArr adds each item in arr into countMap.
+func iterateArr(arr []string, countMap map[string]int) {
+	for _, item := range arr {
+		if _, ok := countMap[item]; !ok {
+			countMap[item] = 1
+		} else {
+			countMap[item]++
+		}
+	}
+
+}
+
+// SortMapKeyByValueInt takes a map as its input, sorts its keys according to their values
+// in the map, and outputs the sorted keys as a slice.
+func SortMapKeyByValueInt(m map[string]int) []string {
+	keys := make([]string, 0, len(m))
+	for key := range m {
+		keys = append(keys, key)
+	}
+	// sort keys according to their values in the map m
+	sort.Slice(keys, func(i, j int) bool { return m[keys[i]] > m[keys[j]] })
+	return keys
+}
+
+// SortMapKeyByValue takes a map as its input, sorts its keys according to their values
+// in the map, and outputs the sorted keys as a slice.
+func SortMapKeyByValueLen(m map[string][]string) []string {
+	keys := make([]string, 0, len(m))
+	for key := range m {
+		keys = append(keys, key)
+	}
+	// sort keys according to their values in the map m
+	sort.Slice(keys, func(i, j int) bool { return len(m[keys[i]]) > len(m[keys[j]]) })
+	return keys
+}
+
+func GeneratorOrTransformerStats(docs []*doc.KustomizationDocument) {
+	n := len(docs)
+	if n == 0 {
+		return
+	}
+
+	fileType := docs[0].FileType
+	fmt.Printf("There are totally %d %s files.\n", n, fileType)
+
+	GitRepositorySummary(docs, fileType)
+
+	// key of kindToUrls: a string in the KustomizationDocument.Kinds field
+	// value of kindToUrls: a slice of string urls defining a given kind.
+	kindToUrls := make(map[string][]string)
+
+	for _, d := range docs {
+		url := fmt.Sprintf("%s/blob/%s/%s", d.RepositoryURL, d.DefaultBranch, d.FilePath)
+		for _, kind := range d.Kinds {
+			if _, ok := kindToUrls[kind]; !ok {
+				kindToUrls[kind] = []string{url}
+			} else {
+				kindToUrls[kind] = append(kindToUrls[kind], url)
+			}
+		}
+	}
+	fmt.Printf("There are totally %d kinds of %s\n", len(kindToUrls), fileType)
+	sortedKeys := SortMapKeyByValueLen(kindToUrls)
+	for _, k := range sortedKeys {
+		sort.Strings(kindToUrls[k])
+		fmt.Printf("%s kind %s appears %d times\n", fileType, k, len(kindToUrls[k]))
+		for _, url := range kindToUrls[k] {
+			fmt.Printf("%s\n", url)
+		}
+	}
+}
+
+// GitRepositorySummary counts the distribution of docs:
+// 1) how many git repositories are these docs from?
+// 2) how many docs are from each git repository?
+func GitRepositorySummary(docs []*doc.KustomizationDocument, fileType string) {
+	m := make(map[string]int)
+	for _, d := range docs {
+		if _, ok := m[d.RepositoryURL]; ok {
+			m[d.RepositoryURL]++
+		} else {
+			m[d.RepositoryURL] = 1
+		}
+	}
+	sortedKeys := SortMapKeyByValueInt(m)
+	topN := 10
+	i := 0
+	for _, k := range sortedKeys {
+		if i >= topN {
+			break
+		}
+		fmt.Printf("%d %s are from %s\n", m[k], fileType, k)
+		i++
+	}
+}
+
+func main() {
+	topKindsPtr := flag.Int(
+		"kinds", -1,
+		`the number of kubernetes object kinds to be listed according to their popularities.
+By default, all the kinds will be listed.
+If you only want to list the 10 most popular kinds, set the flag to 10.`)
+	topIdentifiersPtr := flag.Int(
+		"identifiers", -1,
+		`the number of identifiers to be listed according to their popularities.
+By default, all the identifiers will be listed.
+If you only want to list the 10 most popular identifiers, set the flag to 10.`)
+	topKustomizeFeaturesPtr := flag.Int(
+		"kustomize-features", -1,
+		`the number of kustomize features to be listed according to their popularities.
+By default, all the features will be listed.
+If you only want to list the 10 most popular features, set the flag to 10.`)
+	indexNamePtr := flag.String(
+		"index", "kustomize", "The name of the ElasticSearch index.")
+	flag.Parse()
+
+	ctx := context.Background()
+	idx, err := index.NewKustomizeIndex(ctx, *indexNamePtr)
+	if err != nil {
+		log.Fatalf("Could not create an index: %v\n", err)
+	}
+
+	// count tracks the number of documents in the index
+	count := 0
+
+	// kustomizationFilecount tracks the number of kustomization files in the index
+	kustomizationFilecount := 0
+
+	kindsMap := make(map[string]int)
+	identifiersMap := make(map[string]int)
+	kustomizeIdentifiersMap := make(map[string]int)
+
+	// ids tracks the unique IDs of the documents in the index
+	ids := make(map[string]struct{})
+
+	// generatorFiles include all the non-kustomization files whose FileType is generator
+	generatorFiles := make([]*doc.KustomizationDocument, 0)
+
+	// transformersFiles include all the non-kustomization files whose FileType is transformer
+	transformersFiles := make([]*doc.KustomizationDocument, 0)
+
+	checksums := make(map[string]int)
+
+	// get all the documents in the index
+	query := []byte(`{ "query":{ "match_all":{} } }`)
+	it := idx.IterateQuery(query, 10000, 60*time.Second)
+	for it.Next() {
+		for _, hit := range it.Value().Hits.Hits {
+			sum := fmt.Sprintf("%x", sha256.Sum256([]byte(hit.Document.DocumentData)))
+			if _, ok := checksums[sum]; ok {
+				checksums[sum]++
+			} else {
+				checksums[sum] = 1
+			}
+
+			// check whether there is any duplicate IDs in the index
+			if _, ok := ids[hit.ID]; !ok {
+				ids[hit.ID] = struct{}{}
+			} else {
+				log.Printf("Found duplicate ID (%s)\n", hit.ID)
+			}
+
+			count++
+			iterateArr(hit.Document.Kinds, kindsMap)
+			iterateArr(hit.Document.Identifiers, identifiersMap)
+
+			if doc.IsKustomizationFile(hit.Document.FilePath) {
+				kustomizationFilecount++
+				iterateArr(hit.Document.Identifiers, kustomizeIdentifiersMap)
+
+			} else {
+				switch hit.Document.FileType {
+				case "generator":
+					generatorFiles = append(generatorFiles, hit.Document.Copy())
+				case "transformer":
+					transformersFiles = append(transformersFiles, hit.Document.Copy())
+				}
+			}
+		}
+	}
+
+	if err := it.Err(); err != nil {
+		log.Fatalf("Error iterating: %v\n", err)
+	}
+
+	sortedKindsMapKeys := SortMapKeyByValueInt(kindsMap)
+	sortedIdentifiersMapKeys := SortMapKeyByValueInt(identifiersMap)
+	sortedKustomizeIdentifiersMapKeys := SortMapKeyByValueInt(kustomizeIdentifiersMap)
+
+	fmt.Printf(`The count of unique document IDs in the kustomize index: %d
+There are %d documents in the kustomize index.
+%d kinds of kubernetes objects are customized:`, len(ids), count, len(kindsMap))
+	fmt.Printf("\n")
+
+	kindCount := 0
+	for _, key := range sortedKindsMapKeys {
+		if *topKindsPtr < 0 || (*topKindsPtr >= 0 && kindCount < *topKindsPtr) {
+			fmt.Printf("\tkind `%s` is customimzed in %d documents\n", key, kindsMap[key])
+			kindCount++
+		}
+	}
+
+	fmt.Printf("%d kinds of identifiers are found:\n", len(identifiersMap))
+	identifierCount := 0
+	for _, key := range sortedIdentifiersMapKeys {
+		if *topIdentifiersPtr < 0 || (*topIdentifiersPtr >= 0 && identifierCount < *topIdentifiersPtr) {
+			fmt.Printf("\tidentifier `%s` appears in %d documents\n", key, identifiersMap[key])
+			identifierCount++
+		}
+	}
+
+	fmt.Printf(`There are %d kustomization files in the kustomize index.
+%d kinds of kustomize features are found:`, kustomizationFilecount, len(kustomizeIdentifiersMap))
+	fmt.Printf("\n")
+	kustomizeFeatureCount := 0
+	for _, key := range sortedKustomizeIdentifiersMapKeys {
+		if *topKustomizeFeaturesPtr < 0 || (*topKustomizeFeaturesPtr >= 0 && kustomizeFeatureCount < *topKustomizeFeaturesPtr) {
+			fmt.Printf("\tfeature `%s` is used in %d documents\n", key, kustomizeIdentifiersMap[key])
+			kustomizeFeatureCount++
+		}
+	}
+
+	GeneratorOrTransformerStats(generatorFiles)
+	GeneratorOrTransformerStats(transformersFiles)
+
+	fmt.Printf("There are total %d checksums of document contents\n", len(checksums))
+	sortedChecksums := SortMapKeyByValueInt(checksums)
+	sortedChecksums = sortedChecksums[:20]
+	fmt.Printf("The top 20 checksums are:\n")
+	for _, key := range sortedChecksums {
+		fmt.Printf("checksum %s apprears %d\n", key, checksums[key])
+	}
+}

api/internal/crawl/cmd/log-parser/README.md

@@ -0,0 +1,8 @@
+This binary takes as its input a json file including GKE logs (which can be
+[exported](https://cloud.google.com/logging/docs/export/configure_export_v2) into 
+[Cloud Storage](https://cloud.google.com/storage/docs/)), 
+and extracts the `textPayload` field of each log entry.
+
+Here is an log entry example:
+
+{"insertId":"1sxuh4jg5lw6w10","labels":{"compute.googleapis.com/resource_name":"gke-crawler2-default-pool-5e55ea05-gzgv","container.googleapis.com/namespace_name":"default","container.googleapis.com/pod_name":"kustomize-stats-5bczg","container.googleapis.com/stream":"stdout"},"logName":"projects/haiyanmeng-gke-dev/logs/kustomize-stats","receiveTimestamp":"2020-01-06T23:33:07.012831742Z","resource":{"labels":{"cluster_name":"crawler2","container_name":"kustomize-stats","instance_id":"8183086081854184383","namespace_id":"default","pod_id":"kustomize-stats-5bczg","project_id":"haiyanmeng-gke-dev","zone":"us-central1-a"},"type":"container"},"severity":"INFO","textPayload":"The kustomize index already exists\n","timestamp":"2020-01-06T23:32:46.628930547Z"}

api/internal/crawl/cmd/log-parser/main.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+)
+
+func main() {
+	if len(os.Args) != 2 {
+		log.Fatalf("The usage of the command is: \n\t%s <log-file.json>", os.Args[0])
+	}
+
+	file, err := os.Open(os.Args[1])
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	closeFile := func(file *os.File) {
+		if err := file.Close(); err != nil {
+			log.Fatal(err)
+		}
+	}
+	defer closeFile(file)
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		var entry interface{}
+		if err := json.Unmarshal([]byte(line), &entry); err != nil {
+			log.Printf("failed to unmarshal a log entry: %s\n", line)
+		}
+
+		m := entry.(map[string]interface{})
+		if payload, ok := m["textPayload"]; ok {
+			// use fmt.Printf here instead of log.Printf to avoid the time and code location info the log package provides
+			fmt.Printf("%s", payload)
+		} else {
+			log.Printf("the log entry does not have the `textPayload` field: %s\n", line)
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		log.Fatal(err)
+	}
+}

api/internal/crawl/config/base/kustomization.yaml

@@ -2,5 +2,4 @@ configmapGenerator:
 - name: elasticsearch-config
   literals:
   - es-url="http://esbasic-master:9200"
-  - kustomize-index-name="kustomize"
   - plugin-index-name="plugin"

api/internal/crawl/config/crawler/cronjob/cronjob.yaml

@@ -1,9 +1,10 @@
 apiVersion: batch/v1beta1
 kind: CronJob
 metadata:
-  name: crawler
+  name: crawler-cronjob
 spec:
-  schedule: "5 0 * * */1"
+  # run the cronjob at 00:00 every 7 days
+  schedule: "0 0 */7 * *"
   jobTemplate:
     spec:
       template:
@@ -11,7 +12,9 @@ spec:
           restartPolicy: OnFailure
           containers:
           - name: crawler
-            image: gcr.io/kustomize-search/crawler:latest
+            image: gcr.io/haiyanmeng-gke-dev/crawler:v1
+            command: ["/crawler"]
+            args: ["--mode=index+github", "--github-repo=kubernetes-sigs/kustomize", "--index=kustomize"]
             imagePullPolicy: Always
             env:
             - name: GITHUB_ACCESS_TOKEN

api/internal/crawl/config/crawler/job/README.md

@@ -0,0 +1,53 @@
+The crawler job can run in one of the following mode:
+
+# Crawling all the documents in the index and crawling all the kustomization files on Github
+
+This is the default setting of the crawler job. The `command` and `args` field
+of the container should be:
+
+```
+        command: ["/crawler"]
+```
+
+Or
+
+```
+        command: ["/crawler"]
+        args: ["--mode=index+github"]
+```
+
+# Crawling all the documents in the index
+
+The `command` and `args` field of the container should be:
+
+```
+        command: ["/crawler"]
+        args: ["--mode=index"]
+```
+
+# Crawling all the kustomization files on Github
+
+The `command` and `args` field of the container should be:
+
+```
+        command: ["/crawler"]
+        args: ["--mode=github"]
+```
+
+# Crawling all the kustomization files in a Github repo
+
+The `command` and `args` field of the container should be like:
+
+```
+        command: ["/crawler"]
+        args: ["--mode=github-repo", "--github-repo=kubernetes-sigs/kustomize"]
+```
+
+# Crawling all the kustomization files in all the repositories of a Github user
+
+The `command` and `args` field of the container should be like:
+
+```
+        command: ["/crawler"]
+        args: ["--github-user", "--github-user=kubernetes-sigs"]
+```

api/internal/crawl/config/crawler/job/job.yaml

@@ -8,8 +8,10 @@ spec:
       restartPolicy: OnFailure
       containers:
       - name: crawler
-        image: gcr.io/kustomize-search/crawler:latest
+        image: gcr.io/haiyanmeng-gke-dev/crawler:v1
         imagePullPolicy: Always
+        command: ["/crawler"]
+        args: ["--mode=github-repo", "--github-repo=kubernetes-sigs/kustomize", "--index=kustomize"]
         env:
         - name: GITHUB_ACCESS_TOKEN
           valueFrom:

api/internal/crawl/config/crawler/kustomize_stats/job.yaml

@@ -0,0 +1,25 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: kustomize-stats
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+      - name: kustomize-stats
+        image: gcr.io/haiyanmeng-gke-dev/kustomize_stats:v1
+        imagePullPolicy: Always
+        command: ["/kustomize_stats"]
+        args: ["--index=kustomize", "--kinds=50", "--identifiers=50", "--kustomize-features=50"]
+        env:
+        - name: GITHUB_ACCESS_TOKEN
+          valueFrom:
+            secretKeyRef:
+              name: github-access-token
+              key: token
+        - name: ELASTICSEARCH_URL
+          valueFrom:
+            configMapKeyRef:
+              name: elasticsearch-config
+              key: es-url

api/internal/crawl/config/crawler/kustomize_stats/kustomization.yaml

@@ -0,0 +1,3 @@
+resources:
+- ../base
+- job.yaml

api/internal/crawl/config/elastic/esbackup.yaml

@@ -0,0 +1,16 @@
+# Creating `esbackup/kustomize-backbup` will create the `kustomize-backup` snapshot repository.
+# Deleting `esbackup/kustomize-backbup` will delete the `kustomize-backup` snapshot repository and all the snapshots in the repository.
+# Deleting `esbackup/kustomize-backbup` will NOT delete essnapshot and esrestore objects.
+apiVersion: elasticsearch.cloud.google.com/v1alpha1
+kind: ESBackup
+metadata:
+  name: kustomize-backup
+spec:
+  storage:
+    gcs:
+      bucket: kustomize-backup
+      path: kustomize
+      secret:
+        name: kustomizesa
+  escluster:
+    name: esbasic

api/internal/crawl/config/elastic/escluster.yaml

@@ -8,6 +8,13 @@ spec:
     - repository-gcs
     - ingest-user-agent
     - ingest-geoip
+  # To set `gcpserviceaccount`,
+  # First, create and download a GCP service account into a json file, named `sakey.json` following the instruction:
+  #     https://www.elastic.co/guide/en/elasticsearch/plugins/6.5/repository-gcs-usage.html#repository-gcs-using-service-account
+  # Second, create a secret for the service account using the following command:
+  #     $ kubectl create secret generic kustomizesa --from-file=./sakey.json
+  gcpserviceaccount:
+    name: kustomizesa
   config:
     env:
       example: test

api/internal/crawl/config/elastic/esrestore.yaml

@@ -0,0 +1,16 @@
+# Creating `esrestore/kustomize-restore` will restore the `kuostmize` index in the `kustomize-snapshot` snapshot to a new index named `kusotmize-restore`.
+# Deleting `esrestore/kustomize-restore` will not delete the restored index.
+# Deleting `esrestore/kustomize-restore` should happen before deleting `essnapshot/kustomize-snapshot`.
+apiVersion: elasticsearch.cloud.google.com/v1alpha1
+kind: ESRestore
+metadata:
+  name: kustomize-restore
+spec:
+  include_global_state: true
+  ignore_unavailable: true
+  rename_pattern: kustomize
+  rename_replacement: kustomize-restore
+  essnapshot:
+    name: kustomize-snapshot
+  escluster:
+    name: esbasic

api/internal/crawl/config/elastic/essnaptshot.yaml

@@ -0,0 +1,15 @@
+# Creating `essnapshot/kustomize-snapshot` will create a snapshot named `kustomize-snapshot` in the `kustomize-backup` snapshot repository.
+# Deleting `essnapshot/kustomize-snapshot` will delete the snapshot.
+# Deleting `essnapshot/kustomize-snapshot` should happen before deleting `esbackup/kustomize-backup`.
+apiVersion: elasticsearch.cloud.google.com/v1alpha1
+kind: ESSnapshot
+metadata:
+  name: kustomize-snapshot
+spec:
+  # indices are optional. If not specified all indices are selected.
+  indices:
+  - kustomize
+  include_global_state: true
+  ignore_unavailable: true
+  esbackup:
+    name: kustomize-backup

api/internal/crawl/config/elastic/service.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: elasticsearch
+spec:
+  selector:
+    custom-resource: v1alpha1.ESCluster
+    custom-resource-name: esbasic
+    custom-resource-namespace: default
+    es/data: "true"
+    using: escluster.Cluster
+  ports:
+  - protocol: "TCP"
+    port: 9200
+  type: LoadBalancer
+  loadBalancerIP: ""

api/internal/crawl/crawler/crawler.go

@@ -10,6 +10,10 @@ import (
 	"os"
 	"sync"
 
+	"sigs.k8s.io/kustomize/api/internal/crawl/utils"
+
+	"sigs.k8s.io/kustomize/api/internal/crawl/index"
+
 	_ "github.com/gomodule/redigo/redis"
 
 	"sigs.k8s.io/kustomize/api/internal/crawl/doc"
@@ -27,157 +31,210 @@ type Crawler interface {
 	// Crawl returns when it is done processing. This method does not take
 	// ownership of the channel. The channel is write only, and it
 	// designates where the crawler should forward the documents.
-	Crawl(ctx context.Context, output chan<- CrawledDocument) error
+	Crawl(ctx context.Context, output chan<- CrawledDocument, seen utils.SeenMap) error
 
 	// Get the document data given the FilePath, Repo, and Ref/Tag/Branch.
 	FetchDocument(context.Context, *doc.Document) error
 	// Write to the document what the created time is.
 	SetCreated(context.Context, *doc.Document) error
 
+	SetDefaultBranch(*doc.Document)
+
 	Match(*doc.Document) bool
 }
 
 type CrawledDocument interface {
 	ID() string
 	GetDocument() *doc.Document
-	GetResources() ([]*doc.Document, error)
+	// Get all the Documents directly referred in a Document.
+	// For a Document representing a non-kustomization file, an empty slice will be returned.
+	// For a Document representing a kustomization file:
+	// the `includeResources` parameter determines whether the documents referred in the `resources` field are returned or not;
+	// the `includeTransformers` parameter determines whether the documents referred in the `transformers` field are returned or not;
+	// the `includeGenerators` parameter determines whether the documents referred in the `generators` field are returned or not.
+	GetResources(includeResources, includeTransformers, includeGenerators bool) ([]*doc.Document, error)
 	WasCached() bool
 }
 
 type CrawlSeed []*doc.Document
 
-type IndexFunc func(CrawledDocument, Crawler) error
+type IndexFunc func(CrawledDocument, index.Mode) error
 type Converter func(*doc.Document) (CrawledDocument, error)
 
-// Cleaner, more efficient, and more extensible crawler implementation.
-// The seed must include the ids of each document in the index.
-func CrawlFromSeed(ctx context.Context, seed CrawlSeed,
-	crawlers []Crawler, conv Converter, indx IndexFunc) {
+func logIfErr(err error) {
+	if err == nil {
+		return
+	}
+	logger.Println("error: ", err)
+}
 
-	seen := make(map[string]struct{})
-
-	logIfErr := func(err error) {
-		if err == nil {
-			return
+func findMatch(d *doc.Document, crawlers []Crawler) Crawler {
+	for _, crawl := range crawlers {
+		if crawl.Match(d) {
+			return crawl
 		}
-		logger.Println("error: ", err)
+	}
+	return nil
+}
+
+func addBranches(cdoc CrawledDocument, match Crawler, indx IndexFunc,
+	seen utils.SeenMap, stack *CrawlSeed) {
+
+	seen.Set(cdoc.ID(), cdoc.GetDocument().FileType)
+
+	match.SetDefaultBranch(cdoc.GetDocument())
+
+	// Insert into index
+	if err := indx(cdoc, index.InsertOrUpdate); err != nil {
+		logger.Printf("Failed to insert or update doc(%s): %v",
+			cdoc.GetDocument().Path(), err)
+		return
 	}
 
-	stack := make(CrawlSeed, 0)
-
-	findMatch := func(d *doc.Document) Crawler {
-		for _, crawl := range crawlers {
-			if crawl.Match(d) {
-				return crawl
-			}
-		}
-
-		return nil
+	deps, err := cdoc.GetResources(true, true, true)
+	if err != nil {
+		logger.Println(err)
+		return
 	}
 
-	addBranches := func(cdoc CrawledDocument, match Crawler) {
-		if _, ok := seen[cdoc.ID()]; ok {
-			return
+	for _, dep := range deps {
+		if seen.Seen(dep.ID()) && seen.Value(dep.ID()) == dep.FileType {
+			continue
 		}
+		*stack = append(*stack, dep)
+	}
+}
 
-		seen[cdoc.ID()] = struct{}{}
-		// Insert into index
-		err := indx(cdoc, match)
-		logIfErr(err)
-		if err != nil {
-			return
-		}
+func doCrawl(ctx context.Context, docsPtr *CrawlSeed, crawlers []Crawler, conv Converter, indx IndexFunc,
+	seen utils.SeenMap, stack *CrawlSeed, refreshDoc bool, updateFileType bool) {
 
-		deps, err := cdoc.GetResources()
-		logIfErr(err)
-		if err != nil {
-			return
-		}
-		for _, dep := range deps {
-			if _, ok := seen[dep.ID()]; ok {
+	UpdatedDocCount := 0
+	seenDocCount := 0
+	cachedDocCount := 0
+	findMatchErrCount := 0
+	FetchDocumentErrCount := 0
+	SetCreatedErrCount := 0
+	convErrCount := 0
+	deleteDocCount := 0
+	crawledDocCount := 0
+
+	// During the execution of the for loop, more Documents may be added into (*docsPtr).
+	for len(*docsPtr) > 0 {
+		// get the last Document in (*docPtr), which will be crawled in this iteration.
+		tail := (*docsPtr)[len(*docsPtr)-1]
+
+		// remove the last Document in (*docPtr)
+		*docsPtr = (*docsPtr)[:(len(*docsPtr) - 1)]
+
+		crawledDocCount++
+		logger.Printf("Crawling doc %d: %s", crawledDocCount, tail.Path())
+
+		if seen.Seen(tail.ID()) {
+			if !updateFileType || seen.Value(tail.ID()) == tail.FileType {
+				logger.Printf("this doc has been seen before")
+				seenDocCount++
 				continue
 			}
-			stack = append(stack, dep)
 		}
-	}
 
-	doCrawl := func(docsPtr *CrawlSeed) {
-		n := len(*docsPtr)
-		for i := 0; i < n; i++ {
-			next := (*docsPtr)[i]
-			match := findMatch(next)
-			if match == nil {
-				logIfErr(fmt.Errorf(
-					"%v could not match any crawler", next))
-				continue
-			}
+		if tail.WasCached() {
+			logger.Printf("doc(%s) is cached already", tail.Path())
+			cachedDocCount++
+			continue
+		}
 
-			logger.Println("Crawling ", next.RepositoryURL, next.FilePath)
-			err := match.FetchDocument(ctx, next)
-			logIfErr(err)
-			// If there was no change or there is an error, we don't have
-			// to branch out, since the dependencies are already in the
-			// index, or we cannot find the document.
-			if err != nil || next.WasCached() {
-				if next.WasCached() {
-					logger.Println(next.RepositoryURL, next.FilePath, "is cached already")
+		match := findMatch(tail, crawlers)
+		if match == nil {
+			logIfErr(fmt.Errorf("%v could not match any crawler", tail))
+			findMatchErrCount++
+			continue
+		}
+
+		if tail.User == "" {
+			tail.User = doc.UserName(tail.RepositoryURL)
+		}
+
+		// If the Document represents a kustomization root, FetchDcoument will change
+		// the `filePath` field of the Document by adding `kustomization.yaml` or
+		// `kustomization.yml` or `kustomization` into the the field.
+		// Therefore, it is necessary to add the ID of the Document into seen before
+		// calling FetchDocument. Otherwise, the binary may enter into an infinite loop
+		// if a kustomization file points to its kustmozation root in its `resources` or
+		// `bases` field.
+		seen.Set(tail.ID(), tail.FileType)
+
+		if refreshDoc || tail.DefaultBranch == "" {
+			match.SetDefaultBranch(tail)
+		}
+
+		if refreshDoc || tail.DocumentData == "" {
+			if err := match.FetchDocument(ctx, tail); err != nil {
+				logger.Printf("FetchDocument failed on doc(%s): %v", tail.Path(), err)
+				FetchDocumentErrCount++
+				// delete the document from the index
+				cdoc := &doc.KustomizationDocument{
+					Document: *tail,
 				}
+				seen.Set(cdoc.ID(), tail.FileType)
+				if err := indx(cdoc, index.Delete); err != nil {
+					logger.Printf("Failed to delete doc(%s): %v", cdoc.Path(), err)
+				}
+				deleteDocCount++
 				continue
 			}
-
-			logIfErr(match.SetCreated(ctx, next))
-
-			cdoc, err := conv(next)
-			logIfErr(err)
-
-			addBranches(cdoc, match)
 		}
+
+		if refreshDoc || tail.CreationTime == nil {
+			if err := match.SetCreated(ctx, tail); err != nil {
+				logger.Printf("SetCreated failed on doc(%s): %v", tail.Path(), err)
+				SetCreatedErrCount++
+			}
+		}
+
+		cdoc, err := conv(tail)
+		// If conv returns an error, cdoc can still be added into the index so that
+		// cdoc.Document can be searched.
+		if err != nil {
+			logger.Printf("conv failed on doc(%s): %v", tail.Path(), err)
+			convErrCount++
+		}
+
+		UpdatedDocCount++
+		addBranches(cdoc, match, indx, seen, stack)
 	}
+	logger.Printf("Summary of doCrawl:\n")
+	logger.Printf("\t%d documents were updated\n", UpdatedDocCount)
+	logger.Printf("\t%d documents were seen by the crawler already and skipped\n", seenDocCount)
+	logger.Printf("\t%d documents were cached already and skipped\n", cachedDocCount)
+	logger.Printf("\t%d documents didn't have a matching crawler and skipped\n", findMatchErrCount)
+	logger.Printf("\t%d documents cannot be fetched, %d out of them are deleted\n",
+		FetchDocumentErrCount, deleteDocCount)
+	logger.Printf("\t%d documents cannot update its creation time but still were inserted or updated in the index\n", SetCreatedErrCount)
+	logger.Printf("\t%d documents cannot be converted but still were inserted or updated in the index\n", convErrCount)
+}
+
+// CrawlFromSeed updates all the documents in seed, and crawls all the new
+// documents referred in the seed.
+func CrawlFromSeed(ctx context.Context, seed CrawlSeed, crawlers []Crawler,
+	conv Converter, indx IndexFunc, seen utils.SeenMap) {
+
+	// stack tracks the documents directly referred in other documents.
+	stack := make(CrawlSeed, 0)
 
 	// Exploit seed to update bulk of corpus.
 	logger.Printf("updating %d documents from seed\n", len(seed))
-	doCrawl(&seed)
-	// Traverse any new links added while updating corpus.
+	// each unique document in seed will be crawled once.
+	doCrawl(ctx, &seed, crawlers, conv, indx, seen, &stack, true, false)
+
+	// Traverse any new documents added while updating corpus.
 	logger.Printf("crawling %d new documents found in the seed\n", len(stack))
-	doCrawl(&stack)
-
-	ch := make(chan CrawledDocument, 1<<10)
-	wg := sync.WaitGroup{}
-
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
-		for cdoc := range ch {
-			if _, ok := seen[cdoc.ID()]; ok {
-				continue
-			}
-			match := findMatch(cdoc.GetDocument())
-			if match == nil {
-				logIfErr(fmt.Errorf(
-					"%v could not match any crawler", cdoc))
-				continue
-			}
-			addBranches(cdoc, match)
-		}
-	}()
-
-	// Exploration through APIs.
-	errs := CRunner(ctx, ch, crawlers)
-	if errs != nil {
-		for _, err := range errs {
-			logIfErr(err)
-		}
-	}
-	close(ch)
-	logger.Println("Processing the new documents from the crawlers' exploration.")
-	wg.Wait()
-	// Handle deps of newly discovered documents.
-	logger.Printf("crawling the %d new documents from the crawlers' exploration.",
-		len(stack))
-	doCrawl(&stack)
+	// While crawling each document in stack, the documents directly referred in the document
+	// will be added into stack.
+	// After this statement is done, stack will become empty.
+	doCrawl(ctx, &stack, crawlers, conv, indx, seen, &stack, false, true)
 }
 
-// CRunner is a blocking function and only returns once all of the
+// CrawlGithubRunner is a blocking function and only returns once all of the
 // crawlers are finished with execution.
 //
 // This function uses the output channel to forward kustomization documents
@@ -188,14 +245,14 @@ func CrawlFromSeed(ctx context.Context, seed CrawlSeed,
 // index of the crawler that emitted the error. Although the errors themselves
 // can be nil, the array will always be exactly the size of the crawlers array.
 //
-// CRunner takes in a seed, which represents the documents stored in an
+// CrawlGithubRunner takes in a seed, which represents the documents stored in an
 // index somewhere. The document data is not required to be populated. If there
 // are many documents, this is preferable. The order of iteration over the seed
-// is not guaranteed, but the CRunner does guarantee that every element
+// is not guaranteed, but the CrawlGithub does guarantee that every element
 // from the seed will be processed before any other documents from the
 // crawlers.
-func CRunner(ctx context.Context,
-	output chan<- CrawledDocument, crawlers []Crawler) []error {
+func CrawlGithubRunner(ctx context.Context, output chan<- CrawledDocument,
+	crawlers []Crawler, seen utils.SeenMap) []error {
 
 	errs := make([]error, len(crawlers))
 	wg := sync.WaitGroup{}
@@ -229,10 +286,59 @@ func CRunner(ctx context.Context,
 				}
 			}()
 			defer close(docs)
-			errs[idx] = crawler.Crawl(ctx, docs)
+			errs[idx] = crawler.Crawl(ctx, docs, seen)
 		}(i, crawler, docs) // Copies the index and the crawler
 	}
 
 	wg.Wait()
 	return errs
 }
+
+// CrawlGithub crawls all the kustomization files on Github.
+func CrawlGithub(ctx context.Context, crawlers []Crawler, conv Converter,
+	indx IndexFunc, seen utils.SeenMap) {
+	// stack tracks the documents directly referred in other documents.
+	stack := make(CrawlSeed, 0)
+
+	// ch is channel where all the crawlers sends the crawled documents to.
+	ch := make(chan CrawledDocument, 1<<10)
+
+	wg := sync.WaitGroup{}
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		docCount := 0
+		for cdoc := range ch {
+			docCount++
+			logger.Printf("Processing doc %d found on Github", docCount)
+			// all the docs here are kustomization files found by querying Github, and
+			// their `FileType` fields all should be empty.
+			if seen.Seen(cdoc.ID()) {
+				logger.Printf("the doc has been seen before")
+				continue
+			}
+			match := findMatch(cdoc.GetDocument(), crawlers)
+			if match == nil {
+				logIfErr(fmt.Errorf(
+					"%v could not match any crawler", cdoc))
+				continue
+			}
+			addBranches(cdoc, match, indx, seen, &stack)
+		}
+	}()
+
+	logger.Println("processing the documents found from crawling github")
+	if errs := CrawlGithubRunner(ctx, ch, crawlers, seen); errs != nil {
+		for _, err := range errs {
+			logIfErr(err)
+		}
+	}
+	close(ch)
+	wg.Wait()
+
+	// Handle deps of newly discovered documents.
+	logger.Printf("crawling the %d new documents referred by other documents",
+		len(stack))
+	doCrawl(ctx, &stack, crawlers, conv, indx, seen, &stack, false, true)
+}

api/internal/crawl/crawler/crawler_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log"
 	"reflect"
 	"sort"
 	"strings"
@@ -11,6 +12,10 @@ import (
 	"testing"
 	"time"
 
+	"sigs.k8s.io/kustomize/api/internal/crawl/utils"
+
+	"sigs.k8s.io/kustomize/api/internal/crawl/index"
+
 	"sigs.k8s.io/kustomize/api/internal/crawl/doc"
 	"sigs.k8s.io/kustomize/api/konfig"
 )
@@ -32,18 +37,21 @@ func (c testCrawler) Match(d *doc.Document) bool {
 	return d != nil
 }
 
+func (c testCrawler) SetDefaultBranch(d *doc.Document) {}
+
 func (c testCrawler) FetchDocument(_ context.Context, d *doc.Document) error {
 	if i, ok := c.lukp[d.ID()]; ok {
 		d.DocumentData = c.docs[i].DocumentData
 		return nil
 	}
 	for _, suffix := range konfig.RecognizedKustomizationFileNames() {
-		fmt.Println(d.ID(), "/", suffix)
-		i, ok := c.lukp[d.ID()+"/"+suffix]
+		savedFilePath := d.FilePath
+		d.FilePath += "/" + suffix
+		i, ok := c.lukp[d.ID()]
 		if !ok {
+			d.FilePath = savedFilePath
 			continue
 		}
-		d.FilePath += "/" + suffix
 		d.DocumentData = c.docs[i].DocumentData
 		return nil
 	}
@@ -72,7 +80,7 @@ func newCrawler(matchPrefix string, err error,
 
 // Crawl implements the Crawler interface for testing.
 func (c testCrawler) Crawl(_ context.Context,
-	output chan<- CrawledDocument) error {
+	output chan<- CrawledDocument, _ utils.SeenMap) error {
 
 	for i, d := range c.docs {
 		isResource := true
@@ -106,8 +114,8 @@ func (s sortableDocs) Len() int {
 	return len(s)
 }
 
-func TestCrawlerRunner(t *testing.T) {
-	fmt.Println("testing CRunner")
+func TestCrawlGithubRunner(t *testing.T) {
+	log.Println("testing CrawlGithubRunner")
 	tests := []struct {
 		tc   []Crawler
 		errs []error
@@ -178,8 +186,9 @@ func TestCrawlerRunner(t *testing.T) {
 			defer close(output)
 			defer wg.Done()
 
-			errs := CRunner(context.Background(),
-				output, test.tc)
+			seen := utils.NewSeenMap()
+			errs := CrawlGithubRunner(context.Background(),
+				output, test.tc, seen)
 
 			// Check that errors are returned as they should be.
 			if !reflect.DeepEqual(errs, test.errs) {
@@ -212,7 +221,7 @@ func TestCrawlerRunner(t *testing.T) {
 }
 
 func TestCrawlFromSeed(t *testing.T) {
-	fmt.Println("testing CrawlFromSeed")
+	log.Println("testing CrawlFromSeed")
 
 	tests := []struct {
 		seed    CrawlSeed
@@ -302,29 +311,6 @@ resources:
 					RepositoryURL: kustomizeRepo,
 					FilePath:      "examples/seedcrawl2/job.yaml",
 				}},
-				// Visited from the crawler runner.
-				{Document: doc.Document{
-					RepositoryURL: kustomizeRepo,
-					FilePath:      "examples/other/base/kustomization.yaml",
-					DocumentData: `
-resources:
-- ../app
-`,
-				}},
-				// Visited from the crawler runner.
-				{Document: doc.Document{
-					RepositoryURL: kustomizeRepo,
-					FilePath:      "examples/other/app/kustomization.yaml",
-					DocumentData: `
-resources:
-- resource.yaml
-`,
-				}},
-				// Visited from crawling runner imported as resource.
-				{Document: doc.Document{
-					RepositoryURL: kustomizeRepo,
-					FilePath:      "examples/other/app/resource.yaml",
-				}},
 			},
 		},
 	}
@@ -338,10 +324,11 @@ resources:
 					Document: *d,
 				}, nil
 			},
-			func(d CrawledDocument, cr Crawler) error {
+			func(d CrawledDocument, mode index.Mode) error {
 				visited[d.ID()]++
 				return nil
 			},
+			utils.NewSeenMap(),
 		)
 		if lv, lc := len(visited), len(tc.corpus); lv != lc {
 			t.Errorf("error: %d of %d documents visited.", lv, lc)

api/internal/crawl/crawler/github/crawler.go

@@ -16,6 +16,8 @@ import (
 	"strings"
 	"time"
 
+	"sigs.k8s.io/kustomize/api/internal/crawl/utils"
+
 	"sigs.k8s.io/kustomize/api/internal/crawl/crawler"
 	"sigs.k8s.io/kustomize/api/internal/crawl/doc"
 	"sigs.k8s.io/kustomize/api/internal/crawl/httpclient"
@@ -30,6 +32,8 @@ var logger = log.New(os.Stdout, "Github Crawler: ",
 type githubCrawler struct {
 	client GhClient
 	query  Query
+	// branchMap maps github repositories to their default branches
+	branchMap map[string]string
 }
 
 type GhClient struct {
@@ -51,13 +55,60 @@ func NewCrawler(accessToken string, retryCount uint64, client *http.Client,
 			},
 			accessToken: accessToken,
 		},
-		query: query,
+		query:     query,
+		branchMap: map[string]string{},
 	}
 }
 
+func (gc githubCrawler) SetDefaultBranch(d *doc.Document) {
+	url := gc.client.ReposRequest(d.RepositoryFullName())
+	defaultBranch, err := gc.client.GetDefaultBranch(url, d.RepositoryURL, gc.branchMap)
+	if err != nil {
+		logger.Printf(
+			"(error: %v) setting default_branch to master\n", err)
+		defaultBranch = "master"
+	}
+	d.DefaultBranch = defaultBranch
+	gc.branchMap[d.RepositoryURL] = d.DefaultBranch
+}
+
+func (gc githubCrawler) DefaultBranch(repo string) string {
+	return gc.branchMap[repo]
+}
+
 // Implements crawler.Crawler.
-func (gc githubCrawler) Crawl(
-	ctx context.Context, output chan<- crawler.CrawledDocument) error {
+func (gc githubCrawler) Crawl(ctx context.Context,
+	output chan<- crawler.CrawledDocument, seen utils.SeenMap) error {
+
+	ranges := []RangeWithin{
+		RangeWithin{
+		start: uint64(0),
+		end:   githubMaxFileSize,
+	},
+	}
+
+	errs := make(multiError, 0)
+	for len(ranges) > 0 {
+		tailRange := ranges[len(ranges) - 1]
+		ranges = ranges[:(len(ranges) - 1)]
+		reProcessQueryRanges, err := gc.CrawlSingleRange(ctx, output, seen, tailRange.start, tailRange.end)
+		if err != nil {
+			errs = append(errs, err)
+		}
+		ranges = append(ranges, reProcessQueryRanges...)
+	}
+
+	if len(errs) > 0 {
+		return errs
+	}
+	return nil
+}
+
+func (gc githubCrawler) CrawlSingleRange(ctx context.Context,
+	output chan<- crawler.CrawledDocument, seen utils.SeenMap,
+	lowerBound, upperBound uint64) ([]RangeWithin, error) {
+
+	log.Printf("CrawlSingleRange [%d, %d]", lowerBound, upperBound)
 
 	noETagClient := GhClient{
 		RequestConfig: gc.client.RequestConfig,
@@ -66,12 +117,25 @@ func (gc githubCrawler) Crawl(
 		accessToken:   gc.client.accessToken,
 	}
 
+	var reProcessQueryRanges []RangeWithin
+
+	var ranges []string
+	var err error
 	// Since Github returns a max of 1000 results per query, we can use
 	// multiple queries that split the search space into chunks of at most
 	// 1000 files to get all of the data.
-	ranges, err := FindRangesForRepoSearch(newCache(noETagClient, gc.query))
+	for i := 0; i < 5; i++ {
+		ranges, err = FindRangesForRepoSearch(newCache(noETagClient, gc.query),
+			lowerBound, upperBound)
+		if err == nil {
+			logger.Printf("FindRangesForRepoSearch succeeded after %d retries", i)
+			break
+		} else {
+			time.Sleep(time.Minute)
+		}
+	}
 	if err != nil {
-		return fmt.Errorf("could not split %v into ranges, %v\n",
+		return reProcessQueryRanges, fmt.Errorf("could not split %v into ranges, %v\n",
 			gc.query, err)
 	}
 
@@ -79,20 +143,30 @@ func (gc githubCrawler) Crawl(
 
 	// Query each range for files.
 	errs := make(multiError, 0)
+	queryResult := RangeQueryResult{}
 	for _, query := range ranges {
-		err := processQuery(ctx, gc.client, query, output)
+		reProcessQuery, rangeResult, err := processQuery(ctx, gc.client, query, output, seen, gc.branchMap)
 		if err != nil {
 			errs = append(errs, err)
 		}
+		queryResult.Add(rangeResult)
+		if reProcessQuery {
+			reProcessQueryRanges = append(reProcessQueryRanges, RangeSizes(query))
+		}
 	}
 
+	logger.Printf("Summary of Crawl: %s", queryResult.String())
+
 	if len(errs) > 0 {
-		return errs
+		return reProcessQueryRanges, errs
 	}
 
-	return nil
+	return reProcessQueryRanges, nil
 }
 
+// FetchDocument first tries to fetch the document with d.FilePath. If it fails,
+// it will try to add each string in konfig.RecognizedKustomizationFileNames() to
+// d.FilePath, and try to fetch the document again.
 func (gc githubCrawler) FetchDocument(_ context.Context, d *doc.Document) error {
 	repoURL := d.RepositoryURL + "/" + d.FilePath + "?ref=" + d.DefaultBranch
 	repoSpec, err := git.NewRepoSpecFromUrl(repoURL)
@@ -104,9 +178,13 @@ func (gc githubCrawler) FetchDocument(_ context.Context, d *doc.Document) error
 		"/" + repoSpec.Ref + "/" + repoSpec.Path
 
 	handle := func(resp *http.Response, err error, path string) error {
+		if resp == nil {
+			return fmt.Errorf("empty http response (url: %s; path: %s), error: %v",
+				url, path, err)
+		}
 		if err == nil && resp.StatusCode == http.StatusOK {
 			d.IsSame = httpclient.FromCache(resp.Header)
-			defer resp.Body.Close()
+			defer CloseResponseBody(resp)
 			data, err := ioutil.ReadAll(resp.Body)
 			if err != nil {
 				return err
@@ -115,18 +193,18 @@ func (gc githubCrawler) FetchDocument(_ context.Context, d *doc.Document) error
 			d.FilePath = d.FilePath + path
 			return nil
 		}
+
 		return err
 	}
-	resp, err := gc.client.GetRawUserContent(url)
-	if err := handle(resp, err, ""); err == nil {
+	resp, errGetRawUserContent := gc.client.GetRawUserContent(url)
+	if err := handle(resp, errGetRawUserContent, ""); err == nil {
 		return nil
 	}
 
 	for _, file := range konfig.RecognizedKustomizationFileNames() {
-		resp, err = gc.client.GetRawUserContent(url + "/" + file)
-		err := handle(resp, err, "/"+file)
-		if err != nil {
-			continue
+		resp, errGetRawUserContent = gc.client.GetRawUserContent(url + "/" + file)
+		if err = handle(resp, errGetRawUserContent, "/"+file); err == nil {
+			return nil
 		}
 	}
 	return fmt.Errorf("file not found: %s, error: %v", url, err)
@@ -158,10 +236,32 @@ func (gc githubCrawler) Match(d *doc.Document) bool {
 	return strings.Contains(repoSpec.Host, "github.com")
 }
 
+type RangeQueryResult struct {
+	totalDocCnt uint64
+	seenDocCnt  uint64
+	newDocCnt   uint64
+	errorCnt    uint64
+}
+
+func (r *RangeQueryResult) Add(other RangeQueryResult) {
+	r.totalDocCnt += other.totalDocCnt
+	r.newDocCnt += other.newDocCnt
+	r.seenDocCnt += other.seenDocCnt
+	r.errorCnt += other.errorCnt
+}
+
+func (r *RangeQueryResult) String() string {
+	return fmt.Sprintf("got %d files from API. "+
+		"%d have been seen before. %d are new and sent to the output channel."+
+		" %d have kustomizationResultAdapter errors.",
+		r.totalDocCnt, r.seenDocCnt, r.newDocCnt, r.errorCnt)
+}
+
 // processQuery follows all of the pages in a query, and updates/adds the
 // documents from the crawl to the datastore/index.
 func processQuery(ctx context.Context, gcl GhClient, query string,
-	output chan<- crawler.CrawledDocument) error {
+	output chan<- crawler.CrawledDocument, seen utils.SeenMap,
+	branchMap map[string]string) (bool, RangeQueryResult, error) {
 
 	queryPages := make(chan GhResponseInfo)
 
@@ -177,60 +277,86 @@ func processQuery(ctx context.Context, gcl GhClient, query string,
 		close(queryPages)
 	}()
 
+	reProcessQuery := false
+
 	errs := make(multiError, 0)
-	errorCnt := 0
-	totalCnt := 0
+	result := RangeQueryResult{}
+	pageID := 1
 	for page := range queryPages {
 		if page.Error != nil {
 			errs = append(errs, page.Error)
 			continue
 		}
-
+		pageResult := RangeQueryResult{}
 		for _, file := range page.Parsed.Items {
-			k, err := kustomizationResultAdapter(gcl, file)
+			k, err := kustomizationResultAdapter(gcl, file, seen, branchMap)
 			if err != nil {
 				logger.Printf("kustomizationResultAdapter failed: %v", err)
 				errs = append(errs, err)
-				errorCnt++
+				pageResult.errorCnt++
 			}
 			if k != nil {
+				pageResult.newDocCnt++
 				output <- k
+			} else {
+				pageResult.seenDocCnt++
 			}
-			totalCnt++
+			pageResult.totalDocCnt++
 		}
 
-		logger.Printf("got %d files out of %d from API. %d of %d had errors\n",
-			totalCnt, page.Parsed.TotalCount, errorCnt, totalCnt)
+		logger.Printf("processQuery [TotalCount %d - page %d]: %s",
+			page.Parsed.TotalCount, pageID, pageResult.String())
+		result.Add(pageResult)
+
+		pageID++
+
+		if page.Parsed.TotalCount > githubMaxResultsPerQuery {
+			reProcessQuery = true
+		}
 	}
 
-	return errs
+	logger.Printf("Summary of processQuery: %s", result.String())
+
+	return reProcessQuery, result, errs
 }
 
-func kustomizationResultAdapter(gcl GhClient, k GhFileSpec) (
-	crawler.CrawledDocument, error) {
-
-	data, err := gcl.GetFileData(k)
-	if err != nil {
-		return nil, err
-	}
-
+func kustomizationResultAdapter(gcl GhClient, k GhFileSpec, seen utils.SeenMap,
+	branchMap map[string]string) (crawler.CrawledDocument, error) {
 	url := gcl.ReposRequest(k.Repository.FullName)
-	defaultBranch, err := gcl.GetDefaultBranch(url)
+	defaultBranch, err := gcl.GetDefaultBranch(url, k.Repository.URL, branchMap)
 	if err != nil {
 		logger.Printf(
 			"(error: %v) setting default_branch to master\n", err)
 		defaultBranch = "master"
 	}
 
+	// document here is a kustomization file found by querying Github, whose
+	// `FileType` field should be empty.
+	document := doc.Document{
+		FilePath:      k.Path,
+		DefaultBranch: defaultBranch,
+		RepositoryURL: k.Repository.URL,
+		User:          doc.UserName(k.Repository.URL),
+	}
+
+	if seen.Seen(document.ID()) {
+		return nil, nil
+	}
+
+	data, err := gcl.GetFileData(k)
+	if err != nil {
+		return nil, err
+	}
+
 	d := doc.KustomizationDocument{
 		Document: doc.Document{
 			DocumentData:  string(data),
 			FilePath:      k.Path,
 			DefaultBranch: defaultBranch,
 			RepositoryURL: k.Repository.URL,
+			User:          doc.UserName(k.Repository.URL),
 		},
 	}
-	logger.Printf("Set the creationTime field")
 	creationTime, err := gcl.GetFileCreationTime(k)
 	if err != nil {
 		logger.Printf("GetFileCreationTime failed: %v", err)
@@ -253,7 +379,7 @@ func (gcl GhClient) ForwardPaginatedQuery(ctx context.Context, query string,
 	output chan<- GhResponseInfo) error {
 
 	logger.Println("querying: ", query)
-	response := gcl.parseGithubResponse(query)
+	response := gcl.parseGithubResponseWithRetry(query)
 
 	if response.Error != nil {
 		return response.Error
@@ -266,7 +392,7 @@ func (gcl GhClient) ForwardPaginatedQuery(ctx context.Context, query string,
 		case <-ctx.Done():
 			return nil
 		default:
-			response = gcl.parseGithubResponse(response.NextURL)
+			response = gcl.parseGithubResponseWithRetry(response.NextURL)
 			if response.Error != nil {
 				return response.Error
 			}
@@ -294,7 +420,10 @@ func (gcl GhClient) GetFileData(k GhFileSpec) ([]byte, error) {
 		return nil, fmt.Errorf("%+v: could not read '%s' metadata: %v",
 			k, url, err)
 	}
-	resp.Body.Close()
+
+	if err := resp.Body.Close(); err != nil {
+		return nil, err
+	}
 
 	type githubContentRawURL struct {
 		DownloadURL string `json:"download_url,omitempty"`
@@ -313,18 +442,32 @@ func (gcl GhClient) GetFileData(k GhFileSpec) ([]byte, error) {
 			k, rawURL.DownloadURL, err)
 	}
 
-	defer resp.Body.Close()
+	defer CloseResponseBody(resp)
 	data, err = ioutil.ReadAll(resp.Body)
 	return data, err
 }
 
-func (gcl GhClient) GetDefaultBranch(url string) (string, error) {
+func CloseResponseBody(resp *http.Response) {
+	if err := resp.Body.Close(); err != nil {
+		log.Printf("failed to close response body: %v", err)
+	}
+}
+
+// GetDefaultBranch gets the default branch of a github repository.
+// m is a map which maps a github repository to its default branch.
+// If repo is already in m, the default branch for url will be obtained from m;
+// otherwise, a query will be made to github to obtain the default branch.
+func (gcl GhClient) GetDefaultBranch(url, repo string, m map[string]string) (string, error) {
+	if v, ok := m[repo]; ok {
+		return v, nil
+	}
+
 	resp, err := gcl.GetReposData(url)
 	if err != nil {
 		return "", fmt.Errorf(
 			"'%s' could not get default_branch: %v", url, err)
 	}
-	defer resp.Body.Close()
+	defer CloseResponseBody(resp)
 	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return "", fmt.Errorf(
@@ -376,7 +519,7 @@ func (gcl GhClient) GetFileCreationTime(
 		}
 	}
 
-	defer resp.Body.Close()
+	defer CloseResponseBody(resp)
 	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return defaultTime, fmt.Errorf(
@@ -444,6 +587,8 @@ type githubResponse struct {
 	// This is the number of files that match the query.
 	TotalCount uint64 `json:"total_count,omitempty"`
 
+	IncompleteResults bool `json:"incomplete_results,omitempty"`
+
 	// Github representation of a file.
 	Items []GhFileSpec `json:"items,omitempty"`
 }
@@ -486,6 +631,17 @@ func parseGithubLinkFormat(links string) (string, string) {
 	return next, last
 }
 
+func (gcl GhClient) parseGithubResponseWithRetry(getRequest string) GhResponseInfo {
+	resp := gcl.parseGithubResponse(getRequest)
+	retries := 0
+	for resp.Parsed.IncompleteResults {
+		resp = gcl.parseGithubResponse(getRequest)
+		retries++
+	}
+	log.Printf("The result of query(%s) is complete after %d retries", getRequest, retries)
+	return resp
+}
+
 func (gcl GhClient) parseGithubResponse(getRequest string) GhResponseInfo {
 	resp, err := gcl.SearchGithubAPI(getRequest)
 	requestInfo := GhResponseInfo{
@@ -499,7 +655,7 @@ func (gcl GhClient) parseGithubResponse(getRequest string) GhResponseInfo {
 	}
 
 	var data []byte
-	defer resp.Body.Close()
+	defer CloseResponseBody(resp)
 	data, requestInfo.Error = ioutil.ReadAll(resp.Body)
 	if requestInfo.Error != nil {
 		return requestInfo
@@ -533,7 +689,7 @@ func (gcl GhClient) parseGithubResponse(getRequest string) GhResponseInfo {
 }
 
 // SearchGithubAPI performs a search query and handles rate limitting for
-// the 'code/search?' endpoint as well as timed retries in the case of abuse
+// the 'search/code?' endpoint as well as timed retries in the case of abuse
 // prevention.
 func (gcl GhClient) SearchGithubAPI(query string) (*http.Response, error) {
 	throttleSearchAPI()
@@ -560,7 +716,15 @@ func (gcl GhClient) Do(query string) (*http.Response, error) {
 		return nil, err
 	}
 	req.Header.Add("Authorization", fmt.Sprintf("token %s", gcl.accessToken))
-	return gcl.client.Do(req)
+
+	// gcl.client.Do: a non-2xx status code doesn't cause an error.
+	// See https://golang.org/pkg/net/http/#Client.Do for more info.
+	resp, err := gcl.client.Do(req)
+	if resp != nil && resp.StatusCode != http.StatusOK {
+		err = fmt.Errorf("GhClient.Do(%s) failed with response code: %d",
+			query, resp.StatusCode)
+	}
+	return resp, err
 }
 
 func (gcl GhClient) getWithRetry(
@@ -570,13 +734,10 @@ func (gcl GhClient) getWithRetry(
 
 	retryCount := gcl.retryCount
 
-	for err == nil &&
-		resp.StatusCode == http.StatusForbidden &&
-		retryCount > 0 {
-
+	for resp != nil && resp.StatusCode == http.StatusForbidden && retryCount > 0 {
 		retryTime := resp.Header.Get("Retry-After")
-		i, err := strconv.Atoi(retryTime)
-		if err != nil {
+		i, errAtoi := strconv.Atoi(retryTime)
+		if errAtoi != nil {
 			return resp, fmt.Errorf(
 				"query '%s' forbidden without 'Retry-After'", query)
 		}

api/internal/crawl/crawler/github/queries.go

@@ -90,6 +90,17 @@ func Path(p string) queryField {
 	return queryField{name: "path", value: p}
 }
 
+// Repo takes a repository (i.e., kubernetes-sigs/kustomize) and formats
+// it according to the Github API.
+func Repo(r string) queryField {
+	return queryField{name: "repo", value: r}
+}
+
+// Path takes a github username and formats it according to the Github API.
+func User(u string) queryField {
+	return queryField{name: "user", value: u}
+}
+
 // RequestConfig stores common variables that must be present for the queries.
 // - CodeSearchRequests: ask Github to check the code indices given a query.
 // - ContentsRequests: ask Github where to download a resource given a repo and a
@@ -105,9 +116,11 @@ type RequestConfig struct {
 // the URL method to get the string value of the URL. See request.CopyWith, to
 // understand why the request object is useful.
 func (rc RequestConfig) CodeSearchRequestWith(query Query) request {
-	req := rc.makeRequest("search/code", query)
-	req.vals.Set("sort", "indexed")
-	req.vals.Set("order", "desc")
+	vals := url.Values{
+		"sort":  []string{"indexed"},
+		"order": []string{"desc"},
+	}
+	req := rc.makeRequest("search/code", query, vals)
 	return req
 }
 
@@ -115,23 +128,25 @@ func (rc RequestConfig) CodeSearchRequestWith(query Query) request {
 // query for the Github API to find the dowload information of this filepath.
 func (rc RequestConfig) ContentsRequest(fullRepoName, path string) string {
 	uri := fmt.Sprintf("repos/%s/contents/%s", fullRepoName, path)
-	return rc.makeRequest(uri, Query{}).URL()
+	return rc.makeRequest(uri, Query{}, url.Values{}).URL()
 }
 
 func (rc RequestConfig) ReposRequest(fullRepoName string) string {
 	uri := fmt.Sprintf("repos/%s", fullRepoName)
-	return rc.makeRequest(uri, Query{}).URL()
+	return rc.makeRequest(uri, Query{}, url.Values{}).URL()
 }
 
 // CommitsRequest given the repo name, and a filepath returns a formatted query
 // for the Github API to find the commits that affect this file.
 func (rc RequestConfig) CommitsRequest(fullRepoName, path string) string {
 	uri := fmt.Sprintf("repos/%s/commits", fullRepoName)
-	return rc.makeRequest(uri, Query{Path(path)}).URL()
+	vals := url.Values{
+		"path": []string{path},
+	}
+	return rc.makeRequest(uri, Query{}, vals).URL()
 }
 
-func (rc RequestConfig) makeRequest(path string, query Query) request {
-	vals := url.Values{}
+func (rc RequestConfig) makeRequest(path string, query Query, vals url.Values) request {
 	vals.Set(perPageArg, fmt.Sprint(rc.perPage))
 
 	return request{
@@ -151,7 +166,7 @@ type request struct {
 	query Query
 }
 
-// CopyWith copies the requests and adds the extra query parameters. Usefull
+// CopyWith copies the requests and adds the extra query parameters. It is useful
 // for dynamically adding sizes to a filename only query without modifying it.
 func (r request) CopyWith(queryParams ...queryField) request {
 	cpy := r

api/internal/crawl/crawler/github/queries_test.go

@@ -53,8 +53,11 @@ func TestQueryType(t *testing.T) {
 				Filename("kustomization.yaml"),
 				Keyword("keyword1"),
 				Keyword("keyword2"),
+				Repo("user1/repo1"),
+				User("user1"),
 			),
-			expected: "q=size:24..64+filename:kustomization.yaml+keyword1+keyword2",
+			expected: "q=size:24..64+filename:kustomization.yaml+keyword1+keyword2+" +
+				"repo:user1/repo1+user:user1",
 		},
 	}
 
@@ -98,7 +101,27 @@ func TestGithubSearchQuery(t *testing.T) {
 				"examples/helloWorld/kustomization.yaml?per_page=100",
 
 			expectedCommitsQuery: "https://api.github.com/repos/kubernetes-sigs/kustomize/commits?" +
-				"q=path:examples/helloWorld/kustomization.yaml&per_page=100",
+				"path=examples%2FhelloWorld%2Fkustomization.yaml&per_page=100",
+		},
+		{
+			rc: RequestConfig{
+				perPage: perPage,
+			},
+			codeQuery: Query{
+				Filename("kustomization.yaml"),
+				Filesize(RangeWithin{64, 128}),
+			},
+			fullRepoName: "kubernetes-sigs/kustomize",
+			path:         "examples 1/helloWorld/kustomization.yaml",
+
+			expectedCodeQuery: "https://api.github.com/search/code?" +
+				"q=filename:kustomization.yaml+size:64..128&order=desc&per_page=100&sort=indexed",
+
+			expectedContentsQuery: "https://api.github.com/repos/kubernetes-sigs/kustomize/contents/" +
+				"examples%201/helloWorld/kustomization.yaml?per_page=100",
+
+			expectedCommitsQuery: "https://api.github.com/repos/kubernetes-sigs/kustomize/commits?" +
+				"path=examples+1%2FhelloWorld%2Fkustomization.yaml&per_page=100",
 		},
 	}
 

api/internal/crawl/crawler/github/split_search_ranges.go

@@ -93,13 +93,15 @@ package github
 //   apiCallsPerResult * 10(pages) * 100(resultsPerPage) * totalResults / 1000
 //   = apiCallsPerResult * totalResults.
 //
-// So it could very well take apiCallsPerResult * 50 times longer to acutally
+// So it could very well take apiCallsPerResult * 50 times longer to actually
 // fetch the results (assuming the quotas for the API calls are the same as the
 // search API), than it does to perform these range searches.
 
 import (
 	"fmt"
 	"math/bits"
+	"strconv"
+	"strings"
 )
 
 // Files cannot be more than 2^19 bytes, according to
@@ -112,7 +114,7 @@ const (
 // Interface instead of struct for testing purposes.
 // Not expecting to have multiple implementations.
 type cachedSearch interface {
-	CountResults(uint64) (uint64, error)
+	CountResults(uint64, uint64) (uint64, error)
 	RequestString(filesize rangeFormatter) string
 }
 
@@ -139,7 +141,7 @@ type cachedSearch interface {
 //    problematic). The current cache implementation looks at the
 //    predecessor entry to find out if the current value is monotonic.
 //    This is where the bit trick is used, since each step in the binary
-//    search is adding or ommiting to add a decreasing power of 2 to the query
+//    search is adding or omitting to add a decreasing power of 2 to the query
 //    value, we can remove the least significant set bit to find the
 //    predecessor in constant time. Ultimately since the search is rate
 //    limited, we could also easily afford to compute this in linear time
@@ -161,16 +163,16 @@ func newCache(client GhClient, query Query) githubCachedSearch {
 	}
 }
 
-func (c githubCachedSearch) CountResults(upperBound uint64) (uint64, error) {
+func (c githubCachedSearch) CountResults(lowerBound, upperBound uint64) (uint64, error) {
 	count, cached := c.cache[upperBound]
 	if cached {
 		return count, nil
 	}
 
-	sizeRange := RangeWithin{0, upperBound}
+	sizeRange := RangeWithin{lowerBound, upperBound}
 	rangeRequest := c.RequestString(sizeRange)
 
-	result := c.gcl.parseGithubResponse(rangeRequest)
+	result := c.gcl.parseGithubResponseWithRetry(rangeRequest)
 	if result.Error != nil {
 		return count, result.Error
 	}
@@ -204,7 +206,7 @@ func (c githubCachedSearch) CountResults(upperBound uint64) (uint64, error) {
 			"Retrying query... current lower bound: %d, got: %d\n",
 			c.cache[prev], result.Parsed.TotalCount)
 
-		result = c.gcl.parseGithubResponse(rangeRequest)
+		result = c.gcl.parseGithubResponseWithRetry(rangeRequest)
 		if result.Error != nil {
 			return count, result.Error
 		}
@@ -219,8 +221,8 @@ func (c githubCachedSearch) CountResults(upperBound uint64) (uint64, error) {
 	}
 
 	count = result.Parsed.TotalCount
-	logger.Printf("Caching new query %s, with count %d\n",
-		sizeRange.RangeString(), count)
+	logger.Printf("Caching new query %s, with count %d (incomplete_results: %v)\n",
+		sizeRange.RangeString(), count, result.Parsed.IncompleteResults)
 	c.cache[upperBound] = count
 	return count, nil
 }
@@ -238,16 +240,16 @@ func (c githubCachedSearch) RequestString(filesize rangeFormatter) string {
 // This would mean that the search as it is could not find all files. If queries
 // are sorted by last indexed, and retrieved on regular intervals, it should be
 // sufficient to get most if not all documents.
-func FindRangesForRepoSearch(cache cachedSearch) ([]string, error) {
-	totalFiles, err := cache.CountResults(githubMaxFileSize)
+func FindRangesForRepoSearch(cache cachedSearch, lowerBound, upperBound uint64) ([]string, error) {
+	totalFiles, err := cache.CountResults(lowerBound, upperBound)
 	if err != nil {
 		return nil, err
 	}
-	logger.Println("total files: ", totalFiles)
+	logger.Println("total kustomization files: ", totalFiles)
 
 	if githubMaxResultsPerQuery >= totalFiles {
 		return []string{
-			cache.RequestString(RangeWithin{0, githubMaxFileSize}),
+			cache.RequestString(RangeWithin{lowerBound, upperBound}),
 		}, nil
 	}
 
@@ -275,6 +277,7 @@ func FindRangesForRepoSearch(cache cachedSearch) ([]string, error) {
 	// range.
 	filesAccessible := uint64(0)
 	sizes := make([]uint64, 0)
+	sizes = append(sizes, lowerBound)
 	for filesAccessible < totalFiles {
 		target := filesAccessible + githubMaxResultsPerQuery
 		if target >= totalFiles {
@@ -284,22 +287,22 @@ func FindRangesForRepoSearch(cache cachedSearch) ([]string, error) {
 		logger.Printf("%d accessible files, next target = %d\n",
 			filesAccessible, target)
 
-		cur, err := lowerBoundFileCount(cache, target)
+		size, err := FindFileSize(cache, target, lowerBound, upperBound)
 		if err != nil {
 			return nil, err
 		}
 
 		// If there are more than 1000 files in the next bucket, we must
 		// advance anyway and lose out on some files :(.
-		if l := len(sizes); l > 0 && sizes[l-1] == cur {
-			cur++
+		if l := len(sizes); l > 0 && sizes[l-1] == size {
+			size++
 		}
 
-		nextAccessible, err := cache.CountResults(cur)
+		nextAccessible, err := cache.CountResults(lowerBound, size)
 		if err != nil {
 			return nil, fmt.Errorf(
 				"cache should be populated at %d already, got %v",
-				cur, err)
+				size, err)
 		}
 		if nextAccessible < filesAccessible {
 			return nil, fmt.Errorf(
@@ -309,31 +312,31 @@ func FindRangesForRepoSearch(cache cachedSearch) ([]string, error) {
 
 		filesAccessible = nextAccessible
 		if nextAccessible < totalFiles {
-			sizes = append(sizes, cur)
+			sizes = append(sizes, size)
 		}
 	}
-
+	sizes = append(sizes, upperBound)
 	return formatFilesizeRanges(cache, sizes), nil
 }
 
-// lowerBoundFileCount finds the filesize range from [0, return value] that has
+// FindFileSize finds the filesize range from [lowerBound, return value] that has
 // the largest file count that is smaller than or equal to
 // githubMaxResultsPerQuery. It is important to note that this returned value
 // could already be in a previous range if the next file size has more than 1000
 // results. It is left to the caller to handle this bit of logic and guarantee
 // forward progession in this case.
-func lowerBoundFileCount(
-	cache cachedSearch, targetFileCount uint64) (uint64, error) {
+func FindFileSize(
+	cache cachedSearch, targetFileCount, lowerBound, upperBound uint64) (uint64, error) {
 
 	// Binary search for file sizes that make up the next <=1000 element
 	// chunk.
-	cur := uint64(0)
-	increase := githubMaxFileSize / 2
+	cur := lowerBound
+	increase := (upperBound - lowerBound) / 2
 
 	for increase > 0 {
 		mid := cur + increase
 
-		count, err := cache.CountResults(mid)
+		count, err := cache.CountResults(lowerBound, mid)
 		if err != nil {
 			return count, err
 		}
@@ -353,26 +356,24 @@ func lowerBoundFileCount(
 }
 
 func formatFilesizeRanges(cache cachedSearch, sizes []uint64) []string {
-	ranges := make([]string, 0, len(sizes)+1)
-
-	if len(sizes) > 0 {
-		ranges = append(ranges, cache.RequestString(
-			RangeLessThan{sizes[0] + 1},
-		))
+	n := len(sizes)
+	if n < 2 {
+		return []string{}
 	}
 
-	for i := 0; i < len(sizes)-1; i += 1 {
-		ranges = append(ranges, cache.RequestString(
-			RangeWithin{sizes[i] + 1, sizes[i+1]},
-		))
-
-		if i != len(sizes)-2 {
-			continue
-		}
-		ranges = append(ranges, cache.RequestString(
-			RangeGreaterThan{sizes[i+1]},
-		))
+	ranges := make([]string, 0, n-1)
+	ranges = append(ranges, cache.RequestString(RangeWithin{sizes[0], sizes[1]}))
+	for i := 1; i < n-1; i++ {
+		ranges = append(ranges, cache.RequestString(RangeWithin{sizes[i] + 1, sizes[i+1]}))
 	}
-
 	return ranges
 }
+
+func RangeSizes(s string) RangeWithin {
+	start := strings.Index(s, "+size:") + len("+size:")
+	end := strings.Index(s, "&")
+	ranges := strings.Split(s[start:end], "..")
+	lowerBound, _ := strconv.ParseUint(ranges[0], 10, 64)
+	upperBound, _ := strconv.ParseUint(ranges[1], 10, 64)
+	return RangeWithin{lowerBound, upperBound}
+}

api/internal/crawl/crawler/github/split_search_ranges_test.go

@@ -2,6 +2,7 @@ package github
 
 import (
 	"fmt"
+	"log"
 	"reflect"
 	"testing"
 )
@@ -10,8 +11,8 @@ type testCachedSearch struct {
 	cache map[uint64]uint64
 }
 
-func (c testCachedSearch) CountResults(upperBound uint64) (uint64, error) {
-	fmt.Printf("CountResults(%05x)\n", upperBound)
+func (c testCachedSearch) CountResults(lowerBound, upperBound uint64) (uint64, error) {
+	log.Printf("CountResults(%05x)\n", upperBound)
 	count, ok := c.cache[upperBound]
 	if !ok {
 		return count, fmt.Errorf("cache not set at %x", upperBound)
@@ -72,19 +73,29 @@ func TestRangeSplitting(t *testing.T) {
 		},
 	}
 
-	requests, err := FindRangesForRepoSearch(cache)
+	requests, err := FindRangesForRepoSearch(cache, 0, 524288)
 	if err != nil {
 		t.Errorf("Error while finding ranges: %v", err)
 	}
 	expected := []string{
-		"<107",      // cache.RequestString(RangeLessThan{0x6b}),
-		"107..128",  // cache.RequestString(RangeWithin{0x6b, 0x80}),
-		"129..256",  // cache.RequestString(RangeWithin{0x81, 0x100}),
-		"257..4095", // cache.RequestString(RangeWithin{0x101, 0xfff}),
-		">4095",     // cache.RequestString(RangeGreaterThan{0xfff}),
+		"0..106",       // cache.RequestString(RangeWithin{0x00, 0x6a}),
+		"107..128",     // cache.RequestString(RangeWithin{0x6b, 0x80}),
+		"129..256",     // cache.RequestString(RangeWithin{0x81, 0x100}),
+		"257..4095",    // cache.RequestString(RangeWithin{0x101, 0xfff}),
+		"4096..524288", // cache.RequestString(RangeWithin{0x1000, 0x80000}),
 	}
 
 	if !reflect.DeepEqual(requests, expected) {
 		t.Errorf("Expected requests (%v) to equal (%v)", requests, expected)
 	}
 }
+
+func TestRangeSizes(t *testing.T) {
+	s := "https://api.github.com/search/code?q=filename:kustomization.yaml+filename:kustomization.yml" +
+		"+filename:kustomization+size:2365..10000&order=desc&per_page=100&sort=indexed"
+	returnedResult := RangeSizes(s)
+	expectedResult := RangeWithin{uint64(2365), uint64(10000)}
+	if !reflect.DeepEqual(returnedResult, expectedResult) {
+		t.Errorf("RangeSizes expected (%v), got (%v)",expectedResult, returnedResult)
+	}
+}

api/internal/crawl/doc/doc.go

@@ -2,6 +2,9 @@ package doc
 
 import (
 	"fmt"
+	"log"
+	"path/filepath"
+	"sort"
 	"strings"
 
 	"sigs.k8s.io/kustomize/api/k8sdeps/kunstruct"
@@ -43,21 +46,36 @@ type KustomizationDocument struct {
 
 type set map[string]struct{}
 
+func (doc *KustomizationDocument) Copy() *KustomizationDocument {
+	return &KustomizationDocument{
+		Document:    *(doc.Document.Copy()),
+		Kinds:       doc.Kinds,
+		Identifiers: doc.Identifiers,
+		Values:      doc.Values,
+	}
+}
+
 func (doc *KustomizationDocument) String() string {
 	return fmt.Sprintf("%s %s %s %v %v %v len(identifiers):%v  len(values):%v",
 		doc.RepositoryURL, doc.FilePath, doc.DefaultBranch, doc.CreationTime,
-		doc.IsSame,	doc.Kinds, len(doc.Identifiers), len(doc.Values))
+		doc.IsSame, doc.Kinds, len(doc.Identifiers), len(doc.Values))
+}
+
+// IsKustomizationFile determines whether a file path is a kustomization file
+func IsKustomizationFile(path string) bool {
+	basename := filepath.Base(path)
+	for _, name := range konfig.RecognizedKustomizationFileNames() {
+		if basename == name {
+			return true
+		}
+	}
+	return false
 }
 
 // Implements the CrawlerDocument interface.
-func (doc *KustomizationDocument) GetResources() ([]*Document, error) {
-	isResource := true
-	for _, suffix := range konfig.RecognizedKustomizationFileNames() {
-		if strings.HasSuffix(doc.FilePath, "/"+suffix) {
-			isResource = false
-		}
-	}
-	if isResource {
+func (doc *KustomizationDocument) GetResources(
+	includeResources, includeTransformers, includeGenerators bool) ([]*Document, error) {
+	if !IsKustomizationFile(doc.FilePath) {
 		return []*Document{}, nil
 	}
 
@@ -75,19 +93,46 @@ func (doc *KustomizationDocument) GetResources() ([]*Document, error) {
 	}
 	k.FixKustomizationPostUnmarshalling()
 
-	res := make([]*Document, 0, len(k.Resources))
-	for _, r := range k.Resources {
-		next, err := doc.Document.FromRelativePath(r)
-		if err != nil {
-			fmt.Printf("GetResources error: %v\n", err)
-			continue
-		}
-		res = append(res, &next)
+	res := make([]*Document, 0)
+
+	if includeResources {
+		resourceDocs := doc.CollectDocuments(k.Resources, "resource")
+		res = append(res, resourceDocs...)
+	}
+
+	if includeGenerators {
+		generatorDocs := doc.CollectDocuments(k.Generators, "generator")
+		res = append(res, generatorDocs...)
+	}
+
+	if includeTransformers {
+		transformerDocs := doc.CollectDocuments(k.Transformers, "transformer")
+		res = append(res, transformerDocs...)
 	}
 
 	return res, nil
 }
 
+// CollectDocuments construct a Document for each path in paths, and return
+// a slice of Document pointers.
+func (doc *KustomizationDocument) CollectDocuments(
+	paths []string, fileType string) []*Document {
+	docs := make([]*Document, 0, len(paths))
+	for _, r := range paths {
+		if strings.TrimSpace(r) == "" {
+			continue
+		}
+		next, err := doc.Document.FromRelativePath(r)
+		if err != nil {
+			log.Printf("CollectDocuments error: %v\n", err)
+			continue
+		}
+		next.FileType = fileType
+		docs = append(docs, &next)
+	}
+	return docs
+}
+
 func (doc *KustomizationDocument) readBytes() ([]map[string]interface{}, error) {
 	data := []byte(doc.DocumentData)
 
@@ -116,6 +161,8 @@ func (doc *KustomizationDocument) readBytes() ([]map[string]interface{}, error)
 	return configs, nil
 }
 
+// ParseYAML parses doc.Document and sets the following fields of doc:
+// Kinds, Values, Identifiers.
 func (doc *KustomizationDocument) ParseYAML() error {
 	doc.Identifiers = make([]string, 0)
 	doc.Values = make([]string, 0)
@@ -159,6 +206,13 @@ func (doc *KustomizationDocument) ParseYAML() error {
 		doc.Identifiers = append(doc.Identifiers, key)
 	}
 
+	// Without sorting these fields, every time when the string order in these fields changes,
+	// the document in the index will be updated.
+	// Sorting these fields are necessary to avoid a document being updated unnecessarily.
+	sort.Strings(doc.Kinds)
+	sort.Strings(doc.Values)
+	sort.Strings(doc.Identifiers)
+
 	return nil
 }
 

api/internal/crawl/doc/doc_test.go

@@ -189,11 +189,13 @@ metadata:
 	}
 }
 
+type TestStructForGetResources struct {
+	doc       KustomizationDocument
+	resources []*Document
+}
+
 func TestGetResources(t *testing.T) {
-	tests := []struct {
-		doc       KustomizationDocument
-		resources []*Document
-	}{
+	tests := []TestStructForGetResources{
 		{
 			doc: KustomizationDocument{
 				Document: Document{
@@ -213,19 +215,27 @@ resources:
 				{
 					RepositoryURL: "sigs.k8s.io/kustomize",
 					FilePath:      "some/path/to/base",
+					FileType:      "resource",
+					User:          "sigs.k8s.io",
 				},
 				{
 					RepositoryURL: "sigs.k8s.io/kustomize",
 					FilePath:      "some/path/to/otherbase",
+					FileType:      "resource",
+					User:          "sigs.k8s.io",
 				},
 				{
 					RepositoryURL: "sigs.k8s.io/kustomize",
 					FilePath:      "some/path/to/kdir/file.yaml",
+					FileType:      "resource",
+					User:          "sigs.k8s.io",
 				},
 				{
 					RepositoryURL: "https://github.com/kubernetes-sigs/kustomize",
 					FilePath:      "examples/helloWorld",
 					DefaultBranch: "v3.1.0",
+					FileType:      "resource",
+					User:          "kubernetes-sigs",
 				},
 			},
 		},
@@ -248,9 +258,12 @@ resources:
 			resources: []*Document{},
 		},
 	}
+	runTest(t, tests, true, false, false)
+}
 
+func runTest(t *testing.T, tests []TestStructForGetResources, includeResources, includeTransformers, includeGenerators bool) {
 	for _, test := range tests {
-		res, err := test.doc.GetResources()
+		res, err := test.doc.GetResources(includeResources, includeTransformers, includeGenerators)
 		if err != nil {
 			t.Errorf("Unexpected error: %v\n", err)
 			continue
@@ -284,3 +297,83 @@ resources:
 		}
 	}
 }
+
+func TestGetResourcesAndGenerators(t *testing.T) {
+	tests := []TestStructForGetResources{
+		{
+			doc: KustomizationDocument{
+				Document: Document{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/kustomization.yaml",
+					DocumentData: `
+resources:
+- file.yaml
+
+generators:
+- gen.yaml
+
+transformers:
+- tr.yaml
+`},
+			},
+			resources: []*Document{
+				{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/gen.yaml",
+					FileType:      "generator",
+					User:          "sigs.k8s.io",
+				},
+				{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/file.yaml",
+					FileType:      "resource",
+					User:          "sigs.k8s.io",
+				},
+			},
+		},
+	}
+	runTest(t, tests, true, false, true)
+}
+
+func TestGetResourcesAndGeneratorsAndTransformers(t *testing.T) {
+	tests := []TestStructForGetResources{
+		{
+			doc: KustomizationDocument{
+				Document: Document{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/kustomization.yaml",
+					DocumentData: `
+resources:
+- file.yaml
+
+generators:
+- gen.yaml
+
+transformers:
+- tr.yaml
+`},
+			},
+			resources: []*Document{
+				{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/tr.yaml",
+					FileType:      "transformer",
+					User:          "sigs.k8s.io",
+				},
+				{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/gen.yaml",
+					FileType:      "generator",
+					User:          "sigs.k8s.io",
+				},
+				{
+					RepositoryURL: "sigs.k8s.io/kustomize",
+					FilePath:      "some/path/to/kdir/file.yaml",
+					FileType:      "resource",
+					User:          "sigs.k8s.io",
+				},
+			},
+		},
+	}
+	runTest(t, tests, true, true, true)
+}

api/internal/crawl/doc/docname.go

@@ -11,12 +11,18 @@ import (
 )
 
 type Document struct {
-	RepositoryURL string     `json:"repositoryUrl,omitempty"`
+	RepositoryURL string `json:"repositoryUrl,omitempty"`
+	// User makes it easy to aggregate data in the user level instead
+	// of the repository level
+	User          string     `json:"user,omitempty"`
 	FilePath      string     `json:"filePath,omitempty"`
 	DefaultBranch string     `json:"defaultBranch,omitempty"`
 	DocumentData  string     `json:"document,omitempty"`
 	CreationTime  *time.Time `json:"creationTime,omitempty"`
 	IsSame        bool       `json:"-"`
+	// FileType can be one of the following:
+	// "generator", "transformer", "resource", "".
+	FileType string `json:"fileType,omitempty"`
 }
 
 // Implements the CrawlerDocument interface.
@@ -27,14 +33,21 @@ func (doc *Document) GetDocument() *Document {
 func (doc *Document) Copy() *Document {
 	return &Document{
 		RepositoryURL: doc.RepositoryURL,
+		User:          doc.User,
 		FilePath:      doc.FilePath,
 		DefaultBranch: doc.DefaultBranch,
 		DocumentData:  doc.DocumentData,
 		CreationTime:  doc.CreationTime,
 		IsSame:        doc.IsSame,
+		FileType:      doc.FileType,
 	}
 }
 
+func (doc *Document) Path() string {
+	return fmt.Sprintf("repoURL: %s filePath: %s branch: %s",
+		doc.RepositoryURL, doc.FilePath, doc.DefaultBranch)
+}
+
 // Implements the CrawlerDocument interface.
 func (doc *Document) WasCached() bool {
 	return doc.IsSame
@@ -47,6 +60,7 @@ func (doc *Document) FromRelativePath(newFile string) (Document, error) {
 			RepositoryURL: repoSpec.Host + path.Clean(repoSpec.OrgRepo),
 			FilePath:      path.Clean(repoSpec.Path),
 			DefaultBranch: repoSpec.Ref,
+			User:          UserName(repoSpec.Host + path.Clean(repoSpec.OrgRepo)),
 		}, nil
 	}
 	// else document is probably relative path.
@@ -54,6 +68,7 @@ func (doc *Document) FromRelativePath(newFile string) (Document, error) {
 	ret := Document{
 		RepositoryURL: doc.RepositoryURL,
 		DefaultBranch: doc.DefaultBranch,
+		User:          UserName(doc.RepositoryURL),
 	}
 	ogDir, _ := path.Split(doc.FilePath)
 
@@ -78,11 +93,32 @@ func (doc *Document) ID() string {
 }
 
 func (doc *Document) RepositoryFullName() string {
-	doc.RepositoryURL = strings.TrimRight(doc.RepositoryURL, "/")
-	sections := strings.Split(doc.RepositoryURL, "/")
+	url := TrimUrl(doc.RepositoryURL)
+	sections := strings.Split(url, "/")
 	l := len(sections)
 	if l < 2 {
-		return doc.RepositoryURL
+		return url
 	}
 	return path.Join(sections[l-2], sections[l-1])
 }
+
+// TrimUrl removes all the trailing slashes and the "git@github.com:" prefix (if exists).
+func TrimUrl(s string) string {
+	url := strings.TrimRight(s, "/")
+
+	gitPrefix := "git@github.com:"
+	if strings.HasPrefix(url, gitPrefix) {
+		url = url[len(gitPrefix):]
+	}
+	return url
+}
+
+func UserName(repositoryURL string) string {
+	url := TrimUrl(repositoryURL)
+	sections := strings.Split(url, "/")
+	l := len(sections)
+	if l < 2 {
+		return url
+	}
+	return sections[l-2]
+}

api/internal/crawl/doc/docname_test.go

@@ -28,6 +28,7 @@ func TestFromRelativePath(t *testing.T) {
 						RepositoryURL: "example.com/repo",
 						FilePath:      "path/to/other/file/resource.yaml",
 						DefaultBranch: "master",
+						User:          "example.com",
 					},
 				},
 				{
@@ -36,6 +37,7 @@ func TestFromRelativePath(t *testing.T) {
 						RepositoryURL: "example.com/repo",
 						FilePath:      "path/to/other/file/patch.yaml",
 						DefaultBranch: "master",
+						User:          "example.com",
 					},
 				},
 				{
@@ -44,6 +46,7 @@ func TestFromRelativePath(t *testing.T) {
 						RepositoryURL: "example.com/repo",
 						FilePath:      "path/to/file/service.yaml",
 						DefaultBranch: "master",
+						User:          "example.com",
 					},
 				},
 			},
@@ -65,7 +68,7 @@ func TestFromRelativePath(t *testing.T) {
 
 func TestDocument_RepositoryFullName(t *testing.T) {
 	testCases := []struct {
-		doc Document
+		doc                        Document
 		expectedRepositoryFullName string
 	}{
 		{
@@ -92,6 +95,12 @@ func TestDocument_RepositoryFullName(t *testing.T) {
 			},
 			expectedRepositoryFullName: "",
 		},
+		{
+			doc: Document{
+				RepositoryURL: "git@github.com:user/repo",
+			},
+			expectedRepositoryFullName: "user/repo",
+		},
 	}
 
 	for _, tc := range testCases {
@@ -102,4 +111,40 @@ func TestDocument_RepositoryFullName(t *testing.T) {
 				returnedRepositoryFullName)
 		}
 	}
-}
+}
+
+func TestDocument_UserName(t *testing.T) {
+	testCases := []struct {
+		repositoryURL    string
+		expectedUserName string
+	}{
+		{
+			repositoryURL:    "https://github.com/user/repo",
+			expectedUserName: "user",
+		},
+		{
+			repositoryURL:    "https://github.com//user/repo////",
+			expectedUserName: "user",
+		},
+		{
+			repositoryURL:    "repo/",
+			expectedUserName: "repo",
+		},
+		{
+			repositoryURL:    "",
+			expectedUserName: "",
+		},
+		{
+			repositoryURL:    "git@github.com:user/repo",
+			expectedUserName: "user",
+		},
+	}
+
+	for _, tc := range testCases {
+		returnedUserName := UserName(tc.repositoryURL)
+		if returnedUserName != tc.expectedUserName {
+			t.Errorf("UserName expected %s, got %s",
+				tc.expectedUserName, returnedUserName)
+		}
+	}
+}

api/internal/crawl/doc/unique_doc.go

@@ -0,0 +1,36 @@
+package doc
+
+import (
+	"sigs.k8s.io/kustomize/api/internal/crawl/utils"
+)
+
+// UniqueDocuments make sure a Document with a given ID appears only once
+type UniqueDocuments struct {
+	docs   []*Document
+	docIDs utils.SeenMap
+}
+
+func NewUniqueDocuments() UniqueDocuments {
+	return UniqueDocuments{
+		docs:   []*Document{},
+		docIDs: utils.NewSeenMap(),
+	}
+}
+
+func (uds *UniqueDocuments) Add(d *Document) {
+	if uds.docIDs.Seen(d.ID()) {
+		return
+	}
+	uds.docs = append(uds.docs, d)
+	uds.docIDs.Set(d.ID(), "")
+}
+
+func (uds *UniqueDocuments) AddDocuments(docs []*Document) {
+	for _, d := range docs {
+		uds.Add(d)
+	}
+}
+
+func (uds *UniqueDocuments) Documents() []*Document {
+	return uds.docs
+}

api/internal/crawl/go.mod

@@ -1,13 +1,13 @@
 module sigs.k8s.io/kustomize/api/internal/crawl
 
-go 1.13
+go 1.12
 
 require (
-	github.com/elastic/go-elasticsearch/v6 v6.8.2
+	github.com/elastic/go-elasticsearch/v6 v6.8.5
 	github.com/gomodule/redigo v2.0.0+incompatible
 	github.com/gorilla/mux v1.7.3
 	github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79
 	github.com/rs/cors v1.7.0
-	sigs.k8s.io/kustomize/api v0.2.0
+	sigs.k8s.io/kustomize/api v0.3.1
 	sigs.k8s.io/yaml v1.1.0
 )

api/internal/crawl/go.sum

@@ -1,14 +1,11 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest v0.9.2/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
 github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
-github.com/Azure/go-autorest/autorest/adal v0.8.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
 github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
-github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
 github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
 github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
-github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
 github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
 github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
@@ -25,6 +22,7 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/bombsimon/wsl v1.2.5/go.mod h1:43lEF/i0kpXbLCeDXL9LMT8c92HyBywXb0AsgMHYngM=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
@@ -41,13 +39,12 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
-github.com/docker/spdystream v0.0.0-20181023171402-6480d4af844c/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
-github.com/elastic/go-elasticsearch/v6 v6.8.2 h1:rp5DGrd63V5c6nHLjF6QEXUpZSvs0+QM3ld7m9VhV2g=
-github.com/elastic/go-elasticsearch/v6 v6.8.2/go.mod h1:UwaDJsD3rWLM5rKNFzv9hgox93HoX8utj1kxD9aFUcI=
-github.com/elazarl/goproxy v0.0.0-20191011121108-aa519ddbe484/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM=
-github.com/elazarl/goproxy/ext v0.0.0-20190711103511-473e67f1d7d2/go.mod h1:gNh8nYJoAm43RfaxurUnxr+N1PwuFV3ZMl/efxlIlY8=
+github.com/docker/spdystream v0.0.0-20160310174837-449fdfce4d96/go.mod h1:Qh8CwZgvJUkLughtfhJv5dyTYa91l1fOUCrgjqmcifM=
+github.com/elastic/go-elasticsearch/v6 v6.8.5 h1:U2HtkBseC1FNBmDr0TR2tKltL6FxoY+niDAlj5M8TK8=
+github.com/elastic/go-elasticsearch/v6 v6.8.5/go.mod h1:UwaDJsD3rWLM5rKNFzv9hgox93HoX8utj1kxD9aFUcI=
+github.com/elazarl/goproxy v0.0.0-20170405201442-c4fc26588b6e/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
 github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/emicklei/go-restful v2.9.6+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
+github.com/evanphx/json-patch v4.2.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/evanphx/json-patch v4.5.0+incompatible h1:ouOWdg56aJriqS0huScTkVXPC5IcNrDCXZ6OoTAWu7M=
 github.com/evanphx/json-patch v4.5.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
@@ -87,14 +84,16 @@ github.com/go-toolsmith/pkgload v1.0.0/go.mod h1:5eFArkbO80v7Z0kdngIxsRXRMTaX4Il
 github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
 github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
 github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
+github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
-github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
-github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
+github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d h1:3PaI8p3seN09VjbTYC/QWlUZdZ1qS1zGjy7LH2Wt07I=
+github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
-github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v0.0.0-20161109072736-4bd1920723d7/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -106,10 +105,10 @@ github.com/golangci/errcheck v0.0.0-20181223084120-ef45e06d44b6/go.mod h1:DbHgvL
 github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613/go.mod h1:SyvUF2NxV+sN8upjjeVYr5W7tyxaT1JVtvhKhOn2ii8=
 github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3/go.mod h1:JXrF4TWy4tXYn62/9x8Wm/K/dm06p8tCKwFRDPZG/1o=
 github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
-github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
-github.com/golangci/golangci-lint v1.19.1/go.mod h1:2CEc4Fxx3vxDv7g8DyXkHCBF73AOzAymcJAprs2vCps=
+github.com/golangci/gofmt v0.0.0-20190930125516-244bba706f1a/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
+github.com/golangci/golangci-lint v1.21.0/go.mod h1:phxpHK52q7SE+5KpPnti4oZTdFCEsn/tKN+nFvCKXfk=
 github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc/go.mod h1:e5tpTHCfVze+7EpLEozzMB3eafxo2KT5veNg1k6byQU=
-github.com/golangci/lint-1 v0.0.0-20190420132249-ee948d087217/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
+github.com/golangci/lint-1 v0.0.0-20191013205115-297bf364a8e0/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
 github.com/golangci/maligned v0.0.0-20180506175553-b1d89398deca/go.mod h1:tvlJhZqDe4LMs4ZHD0oMUlt9G2LWuDGoisJTBzLMV9o=
 github.com/golangci/misspell v0.0.0-20180809174111-950f5d19e770/go.mod h1:dEbvlSfYbMQDtrpRMQU675gSDLDNa8sCPPChZ7PhiVA=
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@@ -117,34 +116,35 @@ github.com/golangci/revgrep v0.0.0-20180526074752-d9c87f5ffaf0/go.mod h1:qOQCunE
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@@ -154,6 +154,7 @@ github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22
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@@ -177,8 +178,8 @@ github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czP
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@@ -192,7 +193,6 @@ github.com/modern-go/reflect2 v0.0.0-20180320133207-05fbef0ca5da/go.mod h1:bx2lN
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@@ -225,18 +225,15 @@ github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7z
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@@ -261,12 +258,13 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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@@ -274,16 +272,22 @@ github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV
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@@ -294,19 +298,23 @@ golang.org/x/net v0.0.0-20180911220305-26e67e76b6c3/go.mod h1:mL1N/T3taQHkDXs73r
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@@ -336,20 +347,26 @@ golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGm
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@@ -371,7 +388,14 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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@@ -379,14 +403,12 @@ k8s.io/klog v1.0.0 h1:Pt+yjF5aB1xDSVbau4VsWe+dQNzA0qv1LlXdC2dF6Q8=
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-sigs.k8s.io/kustomize/api v0.2.0/go.mod h1:zVtMg179jW1gr74jo9fc2Ac9dLYLTZZThc3DDb9lDW4=
-sigs.k8s.io/kustomize/pseudo/k8s v0.1.0 h1:otg4dLFc03c3gzl+2CV8GPGcd1kk8wjXwD+UhhcCn5I=
-sigs.k8s.io/kustomize/pseudo/k8s v0.1.0/go.mod h1:bl/gVJgYYhJZCZdYU2BfnaKYAlqFkgbJEkpl302jEss=
+sigs.k8s.io/kustomize/api v0.3.1 h1:oqMIXvS6tFEUVuKIRUKDa05eC4Hh+cb9JYg8Zhp2d24=
+sigs.k8s.io/kustomize/api v0.3.1/go.mod h1:A+ATnlHqzictQfQC1q3KB/T6MSr0UWQsrrLxMWkge2E=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=

api/internal/crawl/index/elasticsearch.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"time"
 
 	es "github.com/elastic/go-elasticsearch/v6"
@@ -21,12 +20,18 @@ const IndexConfig = `
 				"repositoryUrl": {
 					"type": "keyword"
 				},
+				"user": {
+					"type": "keyword"
+				},
 				"filePath": {
 					"type": "keyword"
 				},
 				"defaultBranch": {
 					"type": "keyword"
 				},
+				"fileType": {
+					"type": "keyword"
+				},
 				"document": {
 					"type": "text"
 				},
@@ -88,7 +93,7 @@ func (idx *index) responseErrorOrNil(info string, res *esapi.Response,
 
 	defer res.Body.Close()
 	if res.IsError() {
-		return fmt.Errorf("%s: %s", messageStart, res.String())
+		return fmt.Errorf("%s: %s [%d]", messageStart, res.String(), res.StatusCode)
 	}
 
 	if reader != nil {
@@ -179,44 +184,47 @@ func (idx *index) DeleteIndex() error {
 }
 
 // Insert or update the document by ID.
-func (idx *index) Put(uniqueID string, doc interface{}) (string, error) {
-	body, err := json.Marshal(doc)
+func (idx *index) Put(uniqueID string, doc interface{}) error {
+	exists, err := idx.Exists(uniqueID)
 	if err != nil {
-		return "", err
+		return err
 	}
 
-	req := esapi.IndexRequest{
-		Index:      idx.name,
-		Body:       bytes.NewReader(body),
-		DocumentID: uniqueID,
-	}
-	res, err := req.Do(idx.ctx, idx.client)
-
-	var id string
-	readId := func(reader io.Reader) error {
-		type InsertResult struct {
-			ID string `json:"_id,omitempty"`
+	if exists {
+		docBytes, err := json.Marshal(doc)
+		if err != nil {
+			return err
 		}
-		var ir InsertResult
-		data, err := ioutil.ReadAll(reader)
+		body := byteJoin(`{"doc":`, docBytes, `}`)
+
+		// For a document with a given id, every call of IndexRequest.Do will increase the version of a document.
+		// To avoid increasing the document version unnecessarily, use UpdateRequest here.
+		req := esapi.UpdateRequest{
+			Index:      idx.name,
+			Body:       bytes.NewReader(body),
+			DocumentID: uniqueID,
+		}
+		res, err := req.Do(idx.ctx, idx.client)
+
+		err = idx.responseErrorOrNil("could not update document",
+			res, err, ignoreResponseBody)
+	} else {
+		body, err := json.Marshal(doc)
 		if err != nil {
 			return err
 		}
 
-		err = json.Unmarshal(data, &ir)
-		if err != nil {
-			return err
+		req := esapi.IndexRequest{
+			Index:      idx.name,
+			Body:       bytes.NewReader(body),
+			DocumentID: uniqueID,
 		}
-		id = ir.ID
+		res, err := req.Do(idx.ctx, idx.client)
 
-		return nil
+		err = idx.responseErrorOrNil("could not insert document",
+			res, err, ignoreResponseBody)
 	}
-
-	// populates the id field.
-	err = idx.responseErrorOrNil("could not insert document",
-		res, err, readId)
-
-	return id, err
+	return err
 }
 
 type scrollUpdater func(string, readerFunc) error
@@ -296,3 +304,24 @@ func (idx *index) Delete(id string) error {
 		fmt.Sprintf("could not delete id(%s) from index(%s)", id, idx.name),
 		res, err, ignoreResponseBody)
 }
+
+// Check whether a given document id is in the index
+func (idx *index) Exists(id string) (bool, error) {
+	op := idx.client.Exists
+	res, err := op(
+		idx.name,
+		id,
+		op.WithContext(idx.ctx),
+		op.WithPretty(),
+	)
+
+	if res != nil && !res.IsError() {
+		return true, nil
+	} else if res != nil && res.StatusCode == 404 {
+		return false, nil
+	} else {
+		return false, idx.responseErrorOrNil(
+			fmt.Sprintf("could not check the existence of id(%s) from index(%s)", id, idx.name),
+			res, err, ignoreResponseBody)
+	}
+}

api/internal/crawl/index/kustomize.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"log"
 	"strings"
 	"time"
 
@@ -16,6 +17,13 @@ const (
 	AggregationKeyword = "aggs"
 )
 
+type Mode int
+
+const (
+	InsertOrUpdate = iota
+	Delete
+)
+
 // Redefinition of Hits structure. Must match the json string of
 // KustomizeResult.Hits.Hits. Declared as a convenience for iteration.
 type KustomizeHits []struct {
@@ -91,14 +99,14 @@ type KustomizeIndex struct {
 }
 
 // Create index reference to the index containing the kustomize documents.
-func NewKustomizeIndex(ctx context.Context) (*KustomizeIndex, error) {
-	idx, err := newIndex(ctx, "kustomize")
+func NewKustomizeIndex(ctx context.Context, indexName string) (*KustomizeIndex, error) {
+	idx, err := newIndex(ctx, indexName)
 	if err != nil {
 		return nil, err
 	}
 
 	indicesExistsOp := idx.client.Indices.Exists
-	resp, err := indicesExistsOp([]string{"kustomize"},
+	resp, err := indicesExistsOp([]string{indexName},
 		indicesExistsOp.WithContext(idx.ctx),
 		indicesExistsOp.WithPretty())
 	if err != nil {
@@ -106,9 +114,9 @@ func NewKustomizeIndex(ctx context.Context) (*KustomizeIndex, error) {
 	}
 
 	if resp.StatusCode == 200 {
-		fmt.Printf("The kustomize index already exists\n")
+		log.Printf("The %s index already exists", indexName)
 	} else {
-		fmt.Printf("Creating the kustomize index\n")
+		log.Printf("Creating the %s index\n", indexName)
 		if err := idx.CreateIndex([]byte(IndexConfig)); err != nil {
 			return nil, err
 		}
@@ -246,7 +254,7 @@ func (it *KustomizeIterator) Next() bool {
 	}
 
 	if it.err == nil {
-		fmt.Printf("updating scroll: %s\n", *it.scrollImpl.ScrollID)
+		log.Printf("updating scroll: %s\n", *it.scrollImpl.ScrollID)
 		it.err = it.update(*it.scrollImpl.ScrollID, reader)
 	}
 
@@ -262,7 +270,7 @@ func (it *KustomizeIterator) Value() KustomizeResult {
 	return it.scrollImpl
 }
 
-// Check if any errors have occured.
+// Check if any errors have occurred.
 func (it *KustomizeIterator) Err() error {
 	return it.err
 }
@@ -293,12 +301,13 @@ func (ki *KustomizeIndex) IterateQuery(query []byte, batchSize int,
 }
 
 // type specific Put for inserting structured kustomization documents.
-func (ki *KustomizeIndex) Put(id string, doc *doc.KustomizationDocument) (string, error) {
-	id, err := ki.index.Put(id, doc)
-	if err != nil {
-		return id, fmt.Errorf("could not insert in elastic: %v", err)
-	}
-	return id, nil
+func (ki *KustomizeIndex) Put(id string, doc *doc.KustomizationDocument) error {
+	return ki.index.Put(id, doc)
+}
+
+// Delete a document with a given id from the kustomize index.
+func (ki *KustomizeIndex) Delete(id string) error {
+	return ki.index.Delete(id)
 }
 
 // Kustomize search options: What metrics should be returned? Kind Aggregation,
@@ -334,7 +343,7 @@ func (ki *KustomizeIndex) Search(query string,
 	if err != nil {
 		return nil, fmt.Errorf("failed to format query %s", query)
 	}
-	fmt.Printf("formated query: %s\n", data)
+	log.Printf("formated query: %s\n", data)
 
 	var kr ElasticKustomizeResult
 	err = ki.index.Search(data, opts.SearchOptions, func(results io.Reader) error {

api/internal/crawl/search_cmds/creationTime.md

@@ -0,0 +1,411 @@
+Find out the largest value of the `creationTime` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "max_creationTime" : { "max" : { "field" : "creationTime" } }
+    }
+}
+'
+```
+
+Find out the smallest value of the `creationTime` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "min_creationTime" : { "min" : { "field" : "creationTime" } }
+    }
+}
+'
+```
+
+Find out the smallest value of the `creationTime` field of all the kustomization files:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+        { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+      ]
+    }
+  },
+  "aggs" : {
+    "min_creationTime" : { "min" : { "field" : "creationTime" } }
+  }
+}
+'
+```
+
+Find out the smallest value of the `creationTime` field of all kustomize resource files:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }, 
+      "filter": [
+        { "regexp": { "fileType": "resource"  }}
+      ]
+    }
+  },
+  "aggs" : {
+    "min_creationTime" : { "min" : { "field" : "creationTime" } }
+  }
+}
+'
+```
+
+Find out the smallest value of the `creationTime` field of all kustomize generator files:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }, 
+      "filter": [
+        { "regexp": { "fileType": "generator"  }}
+      ]
+    }
+  },
+  "aggs" : {
+    "min_creationTime" : { "min" : { "field" : "creationTime" } }
+  }
+}
+'
+```
+
+Find out the smallest value of the `creationTime` field of all kustomize transformer files:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }, 
+      "filter": [
+        { "regexp": { "fileType": "transformer"  }}
+      ]
+    }
+  },
+  "aggs" : {
+    "min_creationTime" : { "min" : { "field" : "creationTime" } }
+  }
+}
+'
+```
+
+Query all the documents whose `creationTime` <= `2016-07-29T17:38:26.000Z`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "range": {
+      "creationTime": {
+       "lte": "2016-07-29T17:38:26.000Z"
+      }
+    }
+  }
+}
+'
+```
+
+Query all the documents whose `creationTime` falls within the specific range:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "range": {
+      "creationTime": {
+       "gte": "2016-07-29T17:38:26.000Z",
+       "lte": "2016-08-29T17:38:26.000Z"
+      }
+    }
+  }
+}
+'
+```
+
+Query all the kustomization files whose `creationTime` falls within the specific range:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 20,
+  "query": {
+    "bool": {
+      "filter": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }
+      },
+      "must": {
+        "range": {
+          "creationTime": {
+            "gte": "2017-09-24T15:49:57.000Z",
+            "lte": "2017-09-24T15:49:57.000Z"
+          }
+        }
+      }
+    }
+  }
+}
+'
+```
+
+Aggregate how many new kustomization files were added into Github each month:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "month"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize resource files were added into Github each month:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "month"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize generator files were added into Github each month:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "generator" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "month"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize transformer files were added into Github each month:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "transformer" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "month"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomization files were added into Github each year:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "year"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize resource files were added into Github each year:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]            
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "year"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize generator files were added into Github each year:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "generator" }}
+            ]            
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "year"
+            }
+        }
+    }
+}
+'
+```
+
+Aggregate how many new kustomize transformer files were added into Github each year:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+            ],
+            "filter": [
+                { "regexp": { "fileType": "transformer" }}
+            ]            
+        }
+    },
+    "aggs" : {
+        "newFiles_over_time" : {
+            "date_histogram" : {
+                "field" : "creationTime",
+                "interval" : "year"
+            }
+        }
+    }
+}
+'
+```
+
+Find the generator files created within the given time range:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "generator" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      },
+      "must": {
+        "range": {
+          "creationTime": {
+           "gte": "2019-04-26T16:40:02.000Z",
+           "lte": "2019-04-26T16:40:02.000Z"
+          }
+        }
+      }
+    }
+  }
+}
+'
+```
+
+Find the transformer files created within the given time range:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "transformer" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      },
+      "must": {
+        "range": {
+          "creationTime": {
+           "gte": "2019-04-26T16:40:02.000Z",
+           "lte": "2019-04-26T16:40:02.000Z"
+          }
+        }
+      }
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/defaultBranch.md

@@ -0,0 +1,32 @@
+Count distinct values of the `defaultBranch` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "defaultBranch_count" : {
+            "cardinality" : {
+                "field" : "defaultBranch",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+List all the github branches where kustomization files and kustomize resource files live, 
+and how many kustomization files and kustomize resource files live in each branch:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "defaultBranch" : {
+            "terms" : {
+              "field" : "defaultBranch",
+              "size": 41
+            }
+        }
+    }
+}
+'
+```

api/internal/crawl/search_cmds/fieldExistence.md

@@ -0,0 +1,55 @@
+Count the documents whose `document` field is empty (The reason why the `document` field
+of a document is empty is because of empty documents):
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+   "size": 10000,
+    "query": {
+        "bool": {
+            "must_not": {
+                "exists": {
+                    "field": "document"
+                }
+            }
+        }
+    }
+}
+'
+```
+
+Find all the documents having the `creationTime` field set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "exists": {
+            "field": "creationTime"
+        }
+    }
+}
+'
+```
+
+Find all the documents whose `creationTime` field is not set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+   "size": 10000,
+    "query": {
+        "bool": {
+            "must_not": {
+                "exists": {
+                    "field": "creationTime"
+                }
+            }
+        }
+    }
+}
+'
+```
+
+The following fields of a document in the kustomize index are always non-empty:
+`repositoryUrl`, `filePath`, `defaultBranch`.
+
+The following fields of a document in the kustomize index may be empty:
+`kinds`, `identifiers`, `values`.

api/internal/crawl/search_cmds/fileType.md

@@ -0,0 +1,301 @@
+Find all the documents having the `fileType` field set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "exists": {
+            "field": "fileType"
+        }
+    }
+}
+'
+```
+
+Find all the documents whose `fileType` field is not set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+   "size": 10000,
+    "query": {
+        "bool": {
+            "must_not": {
+                "exists": {
+                    "field": "fileType"
+                }
+            }
+        }
+    }
+}
+'
+```
+
+Search for all the documents whose `fileType` field is `resource`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "resource" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files whose `fileType` field is `resource`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}, 
+       { "regexp": { "fileType": "resource" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomize resource files:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "resource" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }
+    }
+  }
+}
+'
+```
+
+Search all the kustomization files including a `generators` field:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 10000,
+  "query": {
+    "bool": {
+      "must": {
+        "match" : {
+          "identifiers" : {
+            "query" : "generators"
+          }
+        }
+      },
+      "filter": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the documents whose `fileType` field is `generator`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "generator" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files whose `fileType` field is `generator`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}, 
+       { "regexp": { "fileType": "generator" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomize generator files:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "generator" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }
+    }
+  }
+}
+'
+```
+
+Search all the kustomization files including a `transformers` field:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 10000,
+  "query": {
+    "bool": {
+      "must": {
+        "match" : {
+          "identifiers" : {
+            "query" : "transformers"
+          }
+        }
+      },
+      "filter": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the documents whose `fileType` field is `transformer`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "transformer" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files whose `fileType` field is `transformer`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}, 
+       { "regexp": { "fileType": "transformer" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomize transformer files:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "transformer" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      }
+    }
+  }
+}
+'
+```
+
+Count distinct values of the `fileType` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "fileType_count" : {
+            "cardinality" : {
+                "field" : "fileType",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+List all the values of the `fileType` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "fileType" : {
+            "terms" : {
+              "field" : "fileType"
+            }
+        }
+    }
+}
+'
+```
+
+
+For all the kustomization files in the index, list all the values of the
+`fileType` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+             "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+             ]
+        }
+    },
+    "aggs" : {
+        "fileType" : {
+            "terms" : {
+              "field" : "fileType"
+            }
+        }
+    }
+}
+'
+```
+
+For all the non-kustomization files in the index, list all the values of the
+`fileType` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            }
+        }
+    },
+    "aggs" : {
+        "fileType" : {
+            "terms" : {
+              "field" : "fileType"
+            }
+        }
+    }
+}
+'
+```

api/internal/crawl/search_cmds/generator.md

@@ -0,0 +1,29 @@
+Find all the generator files whose `kinds` field includes `ChartRenderer`, and
+only output certain fields of each document:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 200,
+  "_source": {
+    "includes": ["kinds", "repositoryUrl", "defaultBranch", "filePath"]
+  },
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "generator" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      },
+      "must": {
+        "match" : {
+          "kinds" : {
+            "query" : "ChartRenderer"
+          }
+        }
+      }
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/id.md

@@ -0,0 +1,12 @@
+Find the document with the given `_id`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "terms": {
+      "_id": [ "b3a03f3327841617db696e2d6abc30e1a1bd653f1a2bbce05637f7dcae1a43f7" ] 
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/keyword_search.md

@@ -0,0 +1,82 @@
+Count the documents in the index whose `repositoryUrl` field starts with
+`https://github.com/`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "repositoryUrl": "https://github.com/.*" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Count the documents in the index whose `repositoryUrl` field does not start with
+`https://github.com/`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "must_not": [
+       { "regexp": { "repositoryUrl": "https://github.com/.*" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search all the documents matching the given `repositoryUrl` and `filePath`, and return 
+a version for each search hit:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 10000,
+  "version": true,
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "repositoryUrl": "git@github.com:talos-systems/talos-controller-manager" }},
+       { "regexp": { "filePath": "hack/config.*" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search all the documents whose filePath ends with one of these following three filenames:
+`kustomization.yaml`, `kustomization.yml`, `kustomization`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Search all the documents whose filePath does not end with any of these following
+three filenames: `kustomization.yaml`, `kustomization.yml`, `kustomization`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "must_not": [
+       { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+      ]
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/misc.md

@@ -0,0 +1,32 @@
+Check the health status of an ElasticSearch cluster:
+```
+curl -X GET "${ElasticSearchURL}:9200/_cat/health?v&pretty"
+```
+
+Check the indices in an ElasticSearch cluster:
+```
+curl "${ElasticSearchURL}:9200/_cat/indices?v"
+```
+
+Get the mapping of the index:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_mapping?pretty"
+```
+
+Delete the kustomize index from the ElasticSearch cluster (**Use this command with caution**):
+```
+curl -X DELETE "${ElasticSearchURL}:9200/${INDEXNAME}?pretty"
+```
+
+Add a new field into an existing index.
+```
+curl -X PUT "${ElasticSearchURL}:9200/${INDEXNAME}/_mapping/_doc?pretty" -H 'Content-Type: application/json' -d'
+{
+  "properties": {
+    "fileType": {
+      "type": "keyword"
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/repositoryUrl.md

@@ -0,0 +1,255 @@
+Count distinct values of the `repositoryUrl` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count how many Github repositories include kustomization files:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+             "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+             ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize resource files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize generator files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "generator" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize transformer files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "transformer" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize resource dirs in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "resource" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize generator dirs in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "generator" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `repositoryUrl` field for all the kustomize transformer dirs in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "transformer" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl_count" : {
+            "cardinality" : {
+                "field" : "repositoryUrl",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+List all the github repositories including kustomization files and kustomize resource files,
+and how many kustomization files and kustomize resource files each github repository includes
+(the github repository including the most kustomization files is listed first):
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "repositoryUrl" : {
+            "terms" : {
+              "field" : "repositoryUrl",
+              "size": 2082
+            }
+        }
+    }
+}
+'
+```
+
+List the top 20 Github repositories including the most amount of kustomization files:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+             "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }}
+             ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl" : {
+            "terms" : {
+              "field" : "repositoryUrl",
+              "size": 20
+            }
+        }
+    }
+}
+'
+```
+
+List the top 20 Github repositories including the most amount of kustomize resource files:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*" }
+            },
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "repositoryUrl" : {
+            "terms" : {
+              "field" : "repositoryUrl",
+              "size": 20
+            }
+        }
+    }
+}
+'
+```

api/internal/crawl/search_cmds/snapshot.md

@@ -0,0 +1,29 @@
+Retrieve information about all registered snapshot repositories:
+```
+curl -X GET "${ElasticSearchURL}:9200/_snapshot?pretty"
+```
+
+Retrieve information about a given snapshot repository, `kustomize-backup`:
+```
+curl -X GET "${ElasticSearchURL}:9200/_snapshot/kustomize-backup?pretty"
+```
+
+Verify a snapshot repository, `kustomize-backup`, manually:
+```
+curl -X POST "${ElasticSearchURL}:9200/_snapshot/kustomize-backup/_verify?pretty"
+```
+
+List all the snapshots in a given snapshot repository:
+```
+curl -X GET "${ElasticSearchURL}:9200/_cat/snapshots/kustomize-backup?v&s=id&pretty"
+```
+
+Retrieve a summary information about a given snapshot:
+```
+curl -X GET "${ElasticSearchURL}:9200/_snapshot/kustomize-backup/kustomize-snapshot?pretty"
+```
+
+Retrieve a detailed information about a given snapshot:
+```
+curl -X GET "${ElasticSearchURL}:9200/_snapshot/kustomize-backup/kustomize-snapshot/_status?pretty"
+```

api/internal/crawl/search_cmds/text_search.md

@@ -0,0 +1,148 @@
+Search for all the kustomize resource files including a Deployment object:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "match" : {
+      "kinds" : {
+        "query" : "Deployment"
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the kustomize resource files including a Deployment object, but only
+including the `kinds` field in the result:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "_source": {
+    "includes": ["kinds"]
+  },
+  "query": {
+    "match" : {
+      "kinds" : {
+        "query" : "Deployment"
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the kustomize resource files including both a Deployment object and 
+a Service object:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "match" : {
+      "kinds" : {
+        "query" : "Deployment Service",
+        "operator" : "and"
+      }
+    }
+  }
+}
+'
+```
+
+Count the number of documents including Deployment and the number of documents 
+including Service:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 0,
+  "aggs" : {
+    "messages" : {
+      "filters" : {
+        "filters" : {
+          "Deployment" : { "match" : { "kinds" : "Deployment"   }},
+          "Service" : { "match" : { "kinds" : "Service" }}
+        }
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files involving CRDs:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 10000,
+  "query": {
+    "match" : {
+      "identifiers" : {
+        "query" : "crds"
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files defining configMapGenerator:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 10000,
+  "query": {
+    "match" : {
+      "identifiers" : {
+        "query" : "configMapGenerator"
+      }
+    }
+  }
+}
+'
+```
+
+Search for all the documents having a `kind` field:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "match" : { "identifiers" : { "query" : "kind" }}}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kuostmization files having a `kind` field:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "filePath": ".*/kustomization((.yaml)?|(.yml)?)" }},
+       { "match" : { "identifiers" : { "query" : "kind" }}}
+      ]
+    }
+  }
+}
+'
+```
+
+Search for all the kustomization files defining the `generatorOptions:disableNameSuffixHash` feature:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "match" : {
+      "identifiers" : {
+        "query" : "generatorOptions:disableNameSuffixHash"
+      }
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/transformer.md

@@ -0,0 +1,29 @@
+Find all the trasnformer files whose `kinds` field includes `HelmValues`, and
+only output certain fields of each document:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "size": 200,
+  "_source": {
+    "includes": ["kinds", "repositoryUrl", "defaultBranch", "filePath"]
+  },
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "fileType": "transformer" }}
+      ],
+      "must_not": {
+        "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+      },
+      "must": {
+        "match" : {
+          "kinds" : {
+            "query" : "HelmValues"
+          }
+        }
+      }
+    }
+  }
+}
+'
+```

api/internal/crawl/search_cmds/user.md

@@ -0,0 +1,380 @@
+Find all the documents having the `user` field set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "exists": {
+            "field": "user"
+        }
+    }
+}
+'
+```
+
+Find all the documents whose `user` field is not set:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+   "size": 10000,
+    "query": {
+        "bool": {
+            "must_not": {
+                "exists": {
+                    "field": "user"
+                }
+            }
+        }
+    }
+}
+'
+```
+
+Search for all the documents whose `user` field is `kubernetes-sigs`:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?pretty" -H 'Content-Type: application/json' -d'
+{
+  "query": {
+    "bool": {
+      "filter": [
+       { "regexp": { "user": "kubernetes-sigs" }}
+      ]
+    }
+  }
+}
+'
+```
+
+Count distinct values of the `user` field:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+List all the values of the `user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "aggs" : {
+        "user" : {
+            "terms" : {
+                "field" : "user",
+                "size" : 20
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomization files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+             "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+             ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomization files in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+             "filter": [
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+             ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+                "field" : "user",
+                "size": 20
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomize resource files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomize resource files in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "resource" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+                "field" : "user",
+                "size": 20
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomize generator files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "generator" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomize generator files in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "generator" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+              "field" : "user",
+              "size": 20  
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomize transformer files in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "transformer" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomize transformer files in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "must_not": {
+                "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }
+            },
+            "filter": [
+                { "regexp": { "fileType": "transformer" }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+                "field" : "user",
+                "size": 20
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomize generator dirs in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "generator" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomize generator dirs in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "generator" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+              "field" : "user",
+              "size": 20  
+            }
+        }
+    }
+}
+'
+```
+
+Count distinct values of the `user` field for all the kustomize transformer dirs in the index:
+```
+curl -X POST "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "transformer" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user_count" : {
+            "cardinality" : {
+                "field" : "user",
+                "precision_threshold": 40000
+            }
+        }
+    }
+}
+'
+```
+
+For all the kustomize transformer dirs in the index, list all the values of the
+`user` field and the frequency of each value:
+```
+curl -X GET "${ElasticSearchURL}:9200/${INDEXNAME}/_search?size=0&pretty" -H 'Content-Type: application/json' -d'
+{
+    "query": {
+        "bool": {
+            "filter": [
+                { "regexp": { "fileType": "transformer" }},
+                { "regexp": { "filePath": "(.*/)?kustomization((.yaml)?|(.yml)?)(/)*"  }}
+            ]
+        }
+    },
+    "aggs" : {
+        "user" : {
+            "terms" : {
+              "field" : "user"
+            }
+        }
+    }
+}
+'
+```

api/internal/crawl/ui/package.json

@@ -11,43 +11,45 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "~8.1.0",
-    "@angular/cdk": "~8.0.2",
-    "@angular/common": "~8.1.0",
-    "@angular/compiler": "~8.1.0",
-    "@angular/core": "~8.1.0",
-    "@angular/forms": "~8.1.0",
+    "@angular/animations": "^8.2.14",
+    "@angular/cdk": "~8.2.3",
+    "@angular/common": "^8.2.14",
+    "@angular/compiler": "^8.2.14",
+    "@angular/core": "^8.2.14",
+    "@angular/forms": "^8.2.14",
     "@angular/http": "^7.2.15",
-    "@angular/material": "^8.0.2",
-    "@angular/platform-browser": "~8.1.0",
-    "@angular/platform-browser-dynamic": "~8.1.0",
-    "@angular/router": "~8.1.0",
+    "@angular/material": "^8.2.3",
+    "@angular/platform-browser": "^8.2.14",
+    "@angular/platform-browser-dynamic": "^8.2.14",
+    "@angular/router": "^8.2.14",
     "angular-google-charts": "^0.1.6",
-    "chart.js": "^2.8.0",
+    "chart.js": "^2.9.3",
+    "core-js": "^3.5.0",
     "hammerjs": "^2.0.8",
-    "rxjs": "~6.4.0",
-    "tslib": "^1.9.0",
-    "zone.js": "~0.9.1"
+    "rxjs": "~6.5.3",
+    "serialize-javascript": "^2.1.2",
+    "tslib": "^1.10.0",
+    "zone.js": "~0.10.2"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.801.0",
-    "@angular/cli": "^8.1.2",
-    "@angular/compiler-cli": "~8.1.0",
-    "@angular/language-service": "~8.1.0",
-    "@types/jasmine": "~3.3.8",
-    "@types/jasminewd2": "~2.0.3",
-    "@types/node": "~8.9.4",
-    "codelyzer": "^5.0.0",
-    "jasmine-core": "~3.4.0",
+    "@angular-devkit/build-angular": "^0.803.20",
+    "@angular/cli": "^8.3.20",
+    "@angular/compiler-cli": "^8.2.14",
+    "@angular/language-service": "^8.2.14",
+    "@types/jasmine": "^3.5.0",
+    "@types/jasminewd2": "^2.0.8",
+    "@types/node": "~12.12.17",
+    "codelyzer": "^5.2.0",
+    "jasmine-core": "~3.5.0",
     "jasmine-spec-reporter": "~4.2.1",
-    "karma": "~4.1.0",
-    "karma-chrome-launcher": "~2.2.0",
-    "karma-coverage-istanbul-reporter": "~2.0.1",
+    "karma": "~4.4.1",
+    "karma-chrome-launcher": "~3.1.0",
+    "karma-coverage-istanbul-reporter": "^2.1.1",
     "karma-jasmine": "~2.0.1",
-    "karma-jasmine-html-reporter": "^1.4.0",
-    "protractor": "~5.4.0",
-    "ts-node": "~7.0.0",
-    "tslint": "~5.15.0",
-    "typescript": "~3.4.3"
+    "karma-jasmine-html-reporter": "^1.4.2",
+    "protractor": "~5.4.2",
+    "ts-node": "~8.5.4",
+    "tslint": "~5.20.1",
+    "typescript": "~3.7.3"
   }
 }

api/internal/crawl/utils/utils.go

@@ -0,0 +1,21 @@
+package utils
+
+type SeenMap map[string]string
+
+func (seen SeenMap) Seen(item string) bool {
+	_, ok := seen[item]
+	return ok
+}
+
+func (seen SeenMap) Set(k, v string) {
+	seen[k] = v
+}
+
+// The caller should make sure that key is in the map.
+func (seen SeenMap) Value(k string) string {
+	return seen[k]
+}
+
+func NewSeenMap() SeenMap {
+	return make(map[string]string)
+}

api/internal/git/cloner.go

@@ -27,90 +27,28 @@ func ClonerUsingGitExec(repoSpec *RepoSpec) error {
 	if err != nil {
 		return err
 	}
+
+	if repoSpec.Ref == "" {
+		repoSpec.Ref = "master"
+	}
 	cmd := exec.Command(
 		gitProgram,
-		"init",
+		"clone",
+		"--depth=1",
+		repoSpec.CloneSpec(),
+		"-b",
+		repoSpec.Ref,
 		repoSpec.Dir.String())
 	var out bytes.Buffer
 	cmd.Stdout = &out
 	cmd.Stderr = &out
 	err = cmd.Run()
 	if err != nil {
-		log.Printf("Error initializing empty git repo: %s", out.String())
+		log.Printf("Error cloning git repo: %s", out.String())
 		return errors.Wrapf(
 			err,
-			"trouble initializing empty git repo in %s",
-			repoSpec.Dir.String())
-	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"remote",
-		"add",
-		"origin",
-		repoSpec.CloneSpec())
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error setting git remote: %s", out.String())
-		return errors.Wrapf(
-			err,
-			"trouble adding remote %s",
-			repoSpec.CloneSpec())
-	}
-	if repoSpec.Ref == "" {
-		repoSpec.Ref = "master"
-	}
-	cmd = exec.Command(
-		gitProgram,
-		"fetch",
-		"--depth=1",
-		"origin",
-		repoSpec.Ref)
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		cmd = exec.Command(
-			gitProgram,
-			"pull",
-			"origin",
-			"master")
-		var out bytes.Buffer
-		cmd.Stdout = &out
-		cmd.Dir = repoSpec.Dir.String()
-		err := cmd.Run()
-		if err != nil {
-			return errors.Wrapf(err, "trouble pulling %s", repoSpec.OrgRepo)
-		}
-		if repoSpec.Ref == "" {
-			repoSpec.Ref = "master"
-		}
-		cmd = exec.Command(gitProgram, "checkout", repoSpec.Ref)
-		cmd.Dir = repoSpec.Dir.String()
-		err = cmd.Run()
-		if err != nil {
-			return errors.Wrapf(
-				err, "trouble checking out href %s", repoSpec.Ref)
-		}
-	}
-
-	cmd = exec.Command(
-		gitProgram,
-		"reset",
-		"--hard",
-		"FETCH_HEAD")
-	cmd.Stdout = &out
-	cmd.Stderr = &out
-	cmd.Dir = repoSpec.Dir.String()
-	err = cmd.Run()
-	if err != nil {
-		log.Printf("Error performing git reset: %s", out.String())
-		return errors.Wrapf(
-			err, "trouble hard resetting empty repository to %s", repoSpec.Ref)
+			"trouble cloning git repo %v in %s",
+			repoSpec.CloneSpec(), repoSpec.Dir.String())
 	}
 
 	cmd = exec.Command(
@@ -120,10 +58,11 @@ func ClonerUsingGitExec(repoSpec *RepoSpec) error {
 		"--init",
 		"--recursive")
 	cmd.Stdout = &out
+	cmd.Stderr = &out
 	cmd.Dir = repoSpec.Dir.String()
 	err = cmd.Run()
 	if err != nil {
-		return errors.Wrapf(err, "trouble fetching submodules for %s", repoSpec.Ref)
+		return errors.Wrapf(err, "trouble fetching submodules for %s", repoSpec.CloneSpec())
 	}
 
 	return nil

api/internal/k8sdeps/configmapandsecret/configmapfactory.go

@@ -9,8 +9,8 @@ import (
 	"unicode/utf8"
 
 	"github.com/pkg/errors"
+	corev1 "k8s.io/api/core/v1"
 	"sigs.k8s.io/kustomize/api/types"
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
 )
 
 func makeFreshConfigMap(

api/internal/k8sdeps/configmapandsecret/configmapfactory_test.go

@@ -8,13 +8,13 @@ import (
 	"reflect"
 	"testing"
 
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/kv"
 	"sigs.k8s.io/kustomize/api/loader"
 	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
 	"sigs.k8s.io/kustomize/api/types"
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
-	metav1 "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1"
 )
 
 func makeEnvConfigMap(name string) *corev1.ConfigMap {

api/internal/k8sdeps/configmapandsecret/secretfactory.go

@@ -6,8 +6,8 @@ package configmapandsecret
 import (
 	"fmt"
 
+	corev1 "k8s.io/api/core/v1"
 	"sigs.k8s.io/kustomize/api/types"
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
 )
 
 func makeFreshSecret(

api/internal/k8sdeps/configmapandsecret/secretfactory_test.go

@@ -7,13 +7,13 @@ import (
 	"reflect"
 	"testing"
 
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/kv"
 	"sigs.k8s.io/kustomize/api/loader"
 	valtest_test "sigs.k8s.io/kustomize/api/testutils/valtest"
 	"sigs.k8s.io/kustomize/api/types"
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
-	metav1 "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1"
 )
 
 func makeEnvSecret(name string) *corev1.Secret {

api/internal/k8sdeps/transformer/patch/conflictdetector.go

@@ -8,14 +8,14 @@ import (
 	"fmt"
 
 	jsonpatch "github.com/evanphx/json-patch"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/mergepatch"
+	"k8s.io/apimachinery/pkg/util/strategicpatch"
+	"k8s.io/client-go/kubernetes/scheme"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
 	"sigs.k8s.io/kustomize/api/resource"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/runtime"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/runtime/schema"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/mergepatch"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/strategicpatch"
-	"sigs.k8s.io/kustomize/pseudo/k8s/client-go/kubernetes/scheme"
 )
 
 type conflictDetector interface {

api/internal/plugins/execplugin/execplugin.go

@@ -12,6 +12,8 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/google/shlex"
+
 	"github.com/pkg/errors"
 	"sigs.k8s.io/kustomize/api/resid"
 	"sigs.k8s.io/kustomize/api/resmap"
@@ -86,7 +88,7 @@ func (p *ExecPlugin) processOptionalArgsFields() error {
 	var c argsConfig
 	yaml.Unmarshal(p.cfg, &c)
 	if c.ArgsOneLiner != "" {
-		p.args = strings.Split(c.ArgsOneLiner, " ")
+		p.args, _ = shlex.Split(c.ArgsOneLiner)
 	}
 	if c.ArgsFromFile != "" {
 		content, err := p.h.Loader().Load(c.ArgsFromFile)

api/internal/plugins/execplugin/execplugin_test.go

@@ -24,7 +24,7 @@ func TestExecPluginConfig(t *testing.T) {
 	fSys := filesys.MakeFsInMemory()
 	fSys.WriteFile("sed-input.txt", []byte(`
 s/$FOO/foo/g
-s/$BAR/bar/g
+s/$BAR/bar baz/g
  \ \ \ 
 `))
 	ldr, err := fLdr.NewLoader(
@@ -43,9 +43,10 @@ s/$BAR/bar/g
 			"metadata": map[string]interface{}{
 				"name": "some-random-name",
 			},
-			"argsOneLiner": "one two",
+			"argsOneLiner": "one two 'foo bar'",
 			"argsFromFile": "sed-input.txt",
 		})
+
 	p := NewExecPlugin(
 		pLdr.AbsolutePluginPath(
 			konfig.DisabledPluginConfig(),
@@ -69,7 +70,7 @@ s/$BAR/bar/g
 
 	expected = `apiVersion: someteam.example.com/v1
 argsFromFile: sed-input.txt
-argsOneLiner: one two
+argsOneLiner: one two 'foo bar'
 kind: SedTransformer
 metadata:
   name: some-random-name
@@ -78,15 +79,16 @@ metadata:
 		t.Fatalf("expected cfg '%s', got '%s'", expected, string(p.Cfg()))
 
 	}
-	if len(p.Args()) != 5 {
-		t.Fatalf("unexpected arg len %d, %v", len(p.Args()), p.Args())
+	if len(p.Args()) != 6 {
+		t.Fatalf("unexpected arg len %d, %#v", len(p.Args()), p.Args())
 	}
 	if p.Args()[0] != "one" ||
 		p.Args()[1] != "two" ||
-		p.Args()[2] != "s/$FOO/foo/g" ||
-		p.Args()[3] != "s/$BAR/bar/g" ||
-		p.Args()[4] != "\\ \\ \\ " {
-		t.Fatalf("unexpected arg array: %v", p.Args())
+		p.Args()[2] != "foo bar" ||
+		p.Args()[3] != "s/$FOO/foo/g" ||
+		p.Args()[4] != "s/$BAR/bar baz/g" ||
+		p.Args()[5] != "\\ \\ \\ " {
+		t.Fatalf("unexpected arg array: %#v", p.Args())
 	}
 }
 

api/internal/tools/tools.go

@@ -3,7 +3,10 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-// This file exists to trigger installs of the given tools.
+// This file exists to automatically trigger installs
+// of the given tools, and is the official 'unofficial'
+// way to declare a dependence on a Go binary until
+// some better technique comes along.
 
 package tools
 
@@ -12,8 +15,11 @@ import (
 	_ "golang.org/x/tools/cmd/stringer"
 	// for lint checks
 	_ "github.com/golangci/golangci-lint/cmd/golangci-lint"
-	// for integration tests driven by the examples
-	_ "github.com/monopole/mdrip"
-	// for generating code for builtin plugins
-	_ "sigs.k8s.io/kustomize/pluginator/v2"
+	// REMOVED pluginator from this process, and leaving
+	// this note to discourage its reintroduction,
+	// because pluginator depends on the api, forcing
+	// major version increments in pluginator with each
+	// api release to allow this trick to work and not
+	// introduce cycles.
+	// _ "sigs.k8s.io/kustomize/pluginator/v2"
 )

api/k8sdeps/doc.go

@@ -21,18 +21,18 @@
 //       tree/master/pkg/util/yaml
 //
 // It vendors that package into
-//   sigs.k8s.io/kustomize/vendor/sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/
+//   sigs.k8s.io/kustomize/vendor/k8s.io/apimachinery/
 //
 // Whereas kubectl-kustomize would have to depend on the "staging"
 // version of this code, located at
 //
 //   https://github.com/kubernetes/kubernetes/
-//       blob/master/staging/src/sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/yaml
+//       blob/master/staging/src/k8s.io/apimachinery/pkg/util/yaml
 //
 // which is "vendored" via symlinks:
-//   k8s.io/kubernetes/vendor/sigs.k8s.io/kustomize/pseudo/k8s/apimachinery
+//   k8s.io/kubernetes/vendor/k8s.io/apimachinery
 // is a symlink to
-//   ../../staging/src/sigs.k8s.io/kustomize/pseudo/k8s/apimachinery
+//   ../../staging/src/k8s.io/apimachinery
 //
 // The staging version is the canonical, under-development
 // version of the code that kubectl depends on, whereas the packages

api/k8sdeps/kunstruct/factory.go

@@ -10,11 +10,11 @@ import (
 	"strconv"
 	"strings"
 
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/util/yaml"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/k8sdeps/configmapandsecret"
 	"sigs.k8s.io/kustomize/api/types"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1/unstructured"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/yaml"
 )
 
 // KunstructuredFactoryImpl hides construction using apimachinery types.

api/k8sdeps/kunstruct/hasher.go

@@ -7,10 +7,10 @@ import (
 	"encoding/json"
 	"fmt"
 
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"sigs.k8s.io/kustomize/api/hasher"
 	"sigs.k8s.io/kustomize/api/ifc"
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1/unstructured"
 )
 
 // kustHash computes a hash of an unstructured object.

api/k8sdeps/kunstruct/hasher_test.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	corev1 "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1"
+	corev1 "k8s.io/api/core/v1"
 )
 
 func TestConfigMapHash(t *testing.T) {

api/k8sdeps/kunstruct/unstructadapter.go

@@ -9,15 +9,15 @@ import (
 	"fmt"
 
 	jsonpatch "github.com/evanphx/json-patch"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/strategicpatch"
+	"k8s.io/client-go/kubernetes/scheme"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/resid"
-	metav1 "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1/unstructured"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/labels"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/runtime"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/runtime/schema"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/strategicpatch"
-	"sigs.k8s.io/kustomize/pseudo/k8s/client-go/kubernetes/scheme"
 )
 
 var _ ifc.Kunstructured = &UnstructAdapter{}

api/k8sdeps/validator/validators.go

@@ -10,10 +10,10 @@ import (
 	"fmt"
 	"strings"
 
-	apivalidation "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/api/validation"
-	v1validation "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1/validation"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/validation"
-	"sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/util/validation/field"
+	apivalidation "k8s.io/apimachinery/pkg/api/validation"
+	v1validation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
+	"k8s.io/apimachinery/pkg/util/validation"
+	"k8s.io/apimachinery/pkg/util/validation/field"
 )
 
 // KustValidator validates Labels and annotations by apimachinery

api/konfig/builtinpluginconsts/varreference.go

@@ -190,5 +190,7 @@ varReference:
   kind: StatefulSet
 
 - path: metadata/labels
+
+- path: metadata/annotations
 `
 )

api/krusty/baseandoverlaymedium_test.go

@@ -154,8 +154,9 @@ LEGUME=chickpea
 `)
 	th.WriteF("/app/overlay/configmap/dummy.txt",
 		`Lorem ipsum dolor sit amet, consectetur
-adipiscing elit, sed do eiusmod tempor
-incididunt ut labore et dolore magna aliqua. 
+ 		 
+adipiscing elit, sed do eiusmod tempor		
+incididunt ut labore et dolore magna aliqua.   
 `)
 	th.WriteF("/app/overlay/deployment/deployment.yaml", `
 apiVersion: apps/v1
@@ -292,8 +293,11 @@ metadata:
 ---
 apiVersion: v1
 data:
-  nonsense: "Lorem ipsum dolor sit amet, consectetur\nadipiscing elit, sed do eiusmod
-    tempor\nincididunt ut labore et dolore magna aliqua. \n"
+  nonsense: |
+    Lorem ipsum dolor sit amet, consectetur
+
+    adipiscing elit, sed do eiusmod tempor
+    incididunt ut labore et dolore magna aliqua.
 kind: ConfigMap
 metadata:
   annotations:
@@ -302,6 +306,6 @@ metadata:
     app: mungebot
     org: kubernetes
     repo: test-infra
-  name: test-infra-app-config-f462h769f9
+  name: test-infra-app-config-hh272bg5d4
 `)
 }

api/krusty/crd_test.go

@@ -65,7 +65,7 @@ data:
           "type": "string"
         },
         "metadata": {
-          "$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+          "$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
         },
         "spec": {
           "$ref": "github.com/example/pkg/apis/jingfang/v1beta1.BeeSpec"
@@ -78,7 +78,7 @@ data:
     "Dependencies": [
       "github.com/example/pkg/apis/jingfang/v1beta1.BeeSpec",
       "github.com/example/pkg/apis/jingfang/v1beta1.BeeStatus",
-      "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+      "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
     ]
   },
   "github.com/example/pkg/apis/jingfang/v1beta1.BeeList": {
@@ -102,13 +102,13 @@ data:
           "type": "string"
         },
         "metadata": {
-          "$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ListMeta"
+          "$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ListMeta"
         }
       }
     },
     "Dependencies": [
       "github.com/example/pkg/apis/jingfang/v1beta1.Bee",
-      "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ListMeta"
+      "k8s.io/apimachinery/pkg/apis/meta/v1.ListMeta"
     ]
   },
   "github.com/example/pkg/apis/jingfang/v1beta1.BeeObjectReference": {
@@ -146,7 +146,7 @@ data:
           "type": "string"
         },
         "metadata": {
-          "$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+          "$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
         },
         "spec": {
           "$ref": "github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec"
@@ -159,7 +159,7 @@ data:
     "Dependencies": [
       "github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec",
       "github.com/example/pkg/apis/jingfang/v1beta1.MyKindStatus",
-      "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ObjectMeta"
+      "k8s.io/apimachinery/pkg/apis/meta/v1.ObjectMeta"
     ]
   },
   "github.com/example/pkg/apis/jingfang/v1beta1.MyKindList": {
@@ -183,13 +183,13 @@ data:
           "type": "string"
         },
         "metadata": {
-          "$ref": "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ListMeta"
+          "$ref": "k8s.io/apimachinery/pkg/apis/meta/v1.ListMeta"
         }
       }
     },
     "Dependencies": [
       "github.com/example/pkg/apis/jingfang/v1beta1.MyKind",
-      "sigs.k8s.io/kustomize/pseudo/k8s/apimachinery/pkg/apis/meta/v1.ListMeta"
+      "k8s.io/apimachinery/pkg/apis/meta/v1.ListMeta"
     ]
   },
   "github.com/example/pkg/apis/jingfang/v1beta1.MyKindSpec": {
@@ -205,13 +205,13 @@ data:
           "description": "If defined, use this secret for configuring the MYSQL_ROOT_PASSWORD",
           "x-kubernetes-object-ref-api-version": "v1",
           "x-kubernetes-object-ref-kind": "Secret",
-          "$ref": "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1.LocalObjectReference"
+          "$ref": "k8s.io/api/core/v1.LocalObjectReference"
         }
       }
     },
     "Dependencies": [
       "github.com/example/pkg/apis/jingfang/v1beta1.BeeObjectReference",
-      "sigs.k8s.io/kustomize/pseudo/k8s/api/core/v1.LocalObjectReference"
+      "k8s.io/api/core/v1.LocalObjectReference"
     ]
   },
   "github.com/example/pkg/apis/jingfang/v1beta1.MyKindStatus": {

api/krusty/variableref_test.go

@@ -1157,6 +1157,8 @@ vars:
     name: my-deployment
     labels:
       my-label: $(NAMESPACE)
+    annotations:
+      my-annotation: $(NAMESPACE)
   spec:
     template:
       spec:
@@ -1176,6 +1178,8 @@ vars:
 apiVersion: apps/v1
 kind: Deployment
 metadata:
+  annotations:
+    my-annotation: my-namespace
   labels:
     my-label: my-namespace
   name: my-deployment

api/kv/kv.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"os"
 	"path"
+	"regexp"
 	"strings"
 	"unicode"
 	"unicode/utf8"
@@ -85,11 +86,17 @@ func (kvl *loader) keyValuesFromFileSources(sources []string) ([]types.Pair, err
 		if err != nil {
 			return nil, err
 		}
-		kvs = append(kvs, types.Pair{Key: k, Value: string(content)})
+		kvs = append(kvs, types.Pair{Key: k, Value: trimTrailingSpacesInLines(string(content))})
 	}
 	return kvs, nil
 }
 
+// trimTrailingSpacesInLines takes string with multiple lines and trims the trailing white spaces and tabs from each line.
+func trimTrailingSpacesInLines(str string) string {
+	re := regexp.MustCompile(`[ \t]*\n`)
+	return re.ReplaceAllString(str, "\n")
+}
+
 func (kvl *loader) keyValuesFromEnvFiles(paths []string) ([]types.Pair, error) {
 	var kvs []types.Pair
 	for _, p := range paths {

api/kv/kv_test.go

@@ -95,3 +95,12 @@ func TestKeyValuesFromFileSources(t *testing.T) {
 		}
 	}
 }
+
+func TestTrimTrailingSpacesInLines(t *testing.T) {
+	input := "\"fooKey\": \"fooValue\"   \t\n \t\t  \n\t\"barKey\": \"barValue\""
+	expected := "\"fooKey\": \"fooValue\"\n\n\t\"barKey\": \"barValue\""
+	res := trimTrailingSpacesInLines(input)
+	if !reflect.DeepEqual(res, expected) {
+		t.Errorf("Trim trailing spaces in lines should succeed, got: %s exptected: %s", res, expected)
+	}
+}

api/resource/resource.go

@@ -301,7 +301,7 @@ func (r *Resource) AppendRefVarName(variable types.Var) {
 	r.refVarNames = append(r.refVarNames, variable.Name)
 }
 
-// TODO: Add BinaryData once we sync to new sigs.k8s.io/kustomize/pseudo/k8s/api
+// TODO: Add BinaryData once we sync to new k8s.io/api
 func mergeConfigmap(
 	mergedTo map[string]interface{},
 	maps ...map[string]interface{}) {

cmd/config/.golangci.yml

@@ -23,7 +23,7 @@ linters:
     - gofmt
     - goimports
 #    - golint
-    - gosec
+#    - gosec
     - gosimple
     - govet
     - ineffassign

cmd/config/cmd/run-fns.go

@@ -1,56 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-package cmd
-
-import (
-	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/cmd/config/cmddocs/commands"
-	"sigs.k8s.io/kustomize/kyaml/runfn"
-)
-
-// GetCatRunner returns a RunFnRunner.
-func GetRunFnRunner(name string) *RunFnRunner {
-	r := &RunFnRunner{}
-	c := &cobra.Command{
-		Use:     "run DIR",
-		Aliases: []string{"run-fns"},
-		Short:   commands.RunFnsShort,
-		Long:    commands.RunFnsLong,
-		Example: commands.RunFnsExamples,
-		RunE:    r.runE,
-		Args:    cobra.ExactArgs(1),
-	}
-	fixDocs(name, c)
-	c.Flags().BoolVar(&r.IncludeSubpackages, "include-subpackages", true,
-		"also print resources from subpackages.")
-	r.Command = c
-	r.Command.Flags().BoolVar(
-		&r.DryRun, "dry-run", false, "print results to stdout")
-	r.Command.Flags().StringSliceVar(
-		&r.FnPaths, "fn-path", []string{},
-		"directories containing functions without configuration")
-	r.Command.AddCommand(XArgsCommand())
-	r.Command.AddCommand(WrapCommand())
-	return r
-}
-
-func RunFnCommand(name string) *cobra.Command {
-	return GetRunFnRunner(name).Command
-}
-
-// RunFnRunner contains the run function
-type RunFnRunner struct {
-	IncludeSubpackages bool
-	Command            *cobra.Command
-	DryRun             bool
-	FnPaths            []string
-}
-
-func (r *RunFnRunner) runE(c *cobra.Command, args []string) error {
-	rec := runfn.RunFns{Path: args[0], FunctionPaths: r.FnPaths}
-	if r.DryRun {
-		rec.Output = c.OutOrStdout()
-	}
-	return handleError(c, rec.Execute())
-}

cmd/config/cmddocs/api/docs.go

@@ -1,476 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Code generated by "mdtogo"; DO NOT EDIT.
-package api
-
-var ConfigFnLong = `# Configuration Functions API Semantics
-
-  Configuration Functions are functions packaged as executables in containers which enable
-  **shift-left practices**.  They configure applications and infrastructure through
-  Kubernetes style Resource Configuration, but run locally pre-commit.
-
-  Configuration functions enable shift-left practices (client-side) through:
-
-  - Pre-commit / delivery validation and linting of configuration
-    - e.g. Fail if any containers don't have PodSecurityPolicy or CPU / Memory limits
-  - Implementation of abstractions as client actuated APIs (e.g. templating)
-    - e.g. Create a client-side *"CRD"* for generating configuration checked into git
-  - Aspect Orient configuration / Injection of cross-cutting configuration
-    - e.g. T-Shirt size containers by annotating Resources with ` + "`" + `small` + "`" + `, ` + "`" + `medium` + "`" + `, ` + "`" + `large` + "`" + `
-      and inject the cpu and memory resources into containers accordingly.
-    - e.g. Inject ` + "`" + `init` + "`" + ` and ` + "`" + `side-car` + "`" + ` containers into Resources based off of Resource
-      Type, annotations, etc.
-
-  Performing these on the client rather than the server enables:
-
-  - Configuration to be reviewed prior to being sent to the API server
-  - Configuration to be validated as part of the CD pipeline
-  - Configuration for Resources to validated holistically rather than individually
-    per-Resource -- e.g. ensure the ` + "`" + `Service.selector` + "`" + ` and ` + "`" + `Deployment.spec.template` + "`" + ` labels
-    match.
-    - MutatingWebHooks are scoped to a single Resource instance at a time.
-  - Low-level tweaks to the output of high-level abstractions -- e.g. add an ` + "`" + `init container` + "`" + `
-    to a client *"CRD"* Resource after it was generated.
-  - Composition and layering of multiple functions together
-    - Compose generation, injection, validation together
-
-  Configuration Functions are implemented as executable programs published in containers which:
-
-  - Accept as input (stdin):
-    - A list of Resource Configuration
-    - A Function Configuration (to configure the function itself)
-  - Emit as output (stdout + exit):
-    - A list of Resource Configuration
-    - An exit code for success / failure
-
-### Function Specification
-
-  - Functions **SHOULD** be published as container images containing a ` + "`" + `CMD` + "`" + ` invoking an executable.
-  - Functions **MUST** accept input on STDIN a ` + "`" + `ResourceList` + "`" + ` containing the Resources and
-    ` + "`" + `functionConfig` + "`" + `.
-  - Functions **MUST** emit output on STDOUT a ` + "`" + `ResourceList` + "`" + ` containing the modified
-    Resources.
-  - Functions **MUST** exit non-0 on failure, and exit 0 on success.
-  - Functions **MAY** emit output on STDERR with error messaging.
-  - Functions performing validation **SHOULD** exit failure and emit error messaging
-    on a validation failure.
-  - Functions generating Resources **SHOULD** retain non-conflicting changes on the
-    generated Resources -- e.g. 1. the function generates a Deployment, but doesn't
-    specify ` + "`" + `cpu` + "`" + `, 2. the user sets the ` + "`" + `cpu` + "`" + ` on the generated Resource, 3. the
-    function should keep the ` + "`" + `cpu` + "`" + ` when regenerating the Resource a second time.
-  - Functions **SHOULD** be usable outside ` + "`" + `kustomize config run` + "`" + ` -- e.g. though pipeline
-    mechanisms such as Tekton.
-
-#### Input Format
-
-  Functions must accept on STDIN:
-
-  ` + "`" + `ResourceList` + "`" + `:
-  - contains ` + "`" + `items` + "`" + ` field, same as ` + "`" + `List.items` + "`" + `
-  - contains ` + "`" + `functionConfig` + "`" + ` field -- a single item with the configuration for the function itself
-
-  Example ` + "`" + `ResourceList` + "`" + ` Input:
-
-    apiVersion: config.kubernetes.io/v1alpha1
-    kind: ResourceList
-    functionConfig:
-      apiVersion: example.com/v1beta1
-      kind: Nginx
-      metadata:
-        name: my-instance
-        annotations:
-          config.kubernetes.io/local-config: "true"
-      spec:
-        replicas: 5
-    items:
-    -  apiVersion: apps/v1
-       kind: Deployment
-       metadata:
-         name: my-instance
-       spec:
-         replicas: 3
-         ...
-    - apiVersion: v1
-      kind: Service
-      metadata:
-        name: my-instance
-      spec:
-        ...
-
-#### Output Format
-
-  Functions must emit on STDOUT:
-
-  ` + "`" + `ResourceList` + "`" + `:
-  - contains ` + "`" + `items` + "`" + ` field, same as ` + "`" + `List.items` + "`" + `
-
-  Example ` + "`" + `ResourceList` + "`" + ` Output:
-
-    apiVersion: config.kubernetes.io/v1alpha1
-    kind: ResourceList
-    items:
-    -  apiVersion: apps/v1
-       kind: Deployment
-       metadata:
-         name: my-instance
-       spec:
-         replicas: 5
-         ...
-    - apiVersion: v1
-      kind: Service
-      metadata:
-        name: my-instance
-      spec:
-        ...
-
-#### Container Environment
-
-  When run by ` + "`" + `kustomize config run` + "`" + `, functions are run in containers with the
-  following environment:
-
-  - Network: ` + "`" + `none` + "`" + `
-  - User: ` + "`" + `nobody` + "`" + `
-  - Security Options: ` + "`" + `no-new-privileges` + "`" + `
-  - Volumes: the volume containing the ` + "`" + `functionConfig` + "`" + ` yaml is mounted under ` + "`" + `/local` + "`" + ` as ` + "`" + `ro` + "`" + `
-
-### Example Function Implementation
-
-  Following is an example for implementing an nginx abstraction using a config
-  function.
-
-#### ` + "`" + `nginx-template.sh` + "`" + `
-
-  ` + "`" + `nginx-template.sh` + "`" + ` is a simple bash script which uses a *heredoc* as a templating solution
-  for generating Resources from the functionConfig input fields.
-
-  The script wraps itself using ` + "`" + `config run wrap -- $0` + "`" + ` which will:
-
-  1. Parse the ` + "`" + `ResourceList.functionConfig` + "`" + ` (provided to the container stdin) into env vars
-  2. Merge the stdout into the original list of Resources
-  3. Defaults filenames for newly generated Resources (if they are not set as annotations)
-     to ` + "`" + `config/NAME_KIND.yaml` + "`" + `
-  4. Format the output
-
-    #!/bin/bash
-    # script must run wrapped by ` + "`" + `kustomize config run wrap` + "`" + `
-    # for parsing input the functionConfig into env vars
-    if [ -z ${WRAPPED} ]; then
-      export WRAPPED=true
-      config run wrap -- $0
-      exit $?
-    fi
-
-    cat <<End-of-message
-    apiVersion: v1
-    kind: Service
-    metadata:
-      name: ${NAME}
-      labels:
-        app: nginx
-        instance: ${NAME}
-    spec:
-      ports:
-      - port: 80
-        targetPort: 80
-        name: http
-      selector:
-        app: nginx
-        instance: ${NAME}
-    ---
-    apiVersion: apps/v1
-    kind: Deployment
-    metadata:
-      name: ${NAME}
-      labels:
-        app: nginx
-        instance: ${NAME}
-    spec:
-      replicas: ${REPLICAS}
-      selector:
-        matchLabels:
-          app: nginx
-          instance: ${NAME}
-      template:
-        metadata:
-          labels:
-            app: nginx
-            instance: ${NAME}
-        spec:
-          containers:
-          - name: nginx
-            image: nginx:1.7.9
-            ports:
-            - containerPort: 80
-    End-of-message
-
-#### ` + "`" + `Dockerfile` + "`" + `
-
-  ` + "`" + `Dockerfile` + "`" + ` installs ` + "`" + `kustomize config` + "`" + ` and copies the script into the container image.
-
-    FROM golang:1.13-stretch
-    RUN go get sigs.k8s.io/kustomize/cmd/config
-    RUN mv /go/bin/config /usr/bin/config
-    COPY nginx-template.sh /usr/bin/nginx-template.sh
-    CMD ["nginx-template.sh]
-
-### Example Function Usage
-
-Following is an example of running the ` + "`" + `kustomize config run` + "`" + ` using the preceding API.
-
-#### ` + "`" + `nginx.yaml` + "`" + ` (Input)
-
-  ` + "`" + `dir/nginx.yaml` + "`" + ` contains a reference to the Function.  The contents of ` + "`" + `nginx.yaml` + "`" + `
-  are passed to the Function through the ` + "`" + `ResourceList.functionConfig` + "`" + ` field.
-
-    apiVersion: example.com/v1beta1
-    kind: Nginx
-    metadata:
-      name: my-instance
-      annotations:
-        config.kubernetes.io/local-config: "true"
-      configFn:
-        container:
-          image: gcr.io/example-functions/nginx-template:v1.0.0
-    spec:
-      replicas: 5
-
-  - ` + "`" + `configFn.container.image` + "`" + `: the image to use for this API
-  - ` + "`" + `annotations[config.kubernetes.io/local-config]` + "`" + `: mark this as not a Resource that should
-    be applied
-
-#### ` + "`" + `kustomize config run dir/` + "`" + ` (Output)
-
-  ` + "`" + `dir/my-instance_deployment.yaml` + "`" + ` contains the Deployment:
-
-    apiVersion: apps/v1
-    kind: Deployment
-    metadata:
-      name: my-instance
-      labels:
-        app: nginx
-        instance: my-instance
-    spec:
-      replicas: 5
-      selector:
-        matchLabels:
-          app: nginx
-          instance: my-instance
-      template:
-        metadata:
-          labels:
-            app: nginx
-            instance: my-instance
-        spec:
-          containers:
-          - name: nginx
-            image: nginx:1.7.9
-            ports:
-            - containerPort: 80
-
-  ` + "`" + `dir/my-instance_service.yaml` + "`" + ` contains the Service:
-
-    apiVersion: v1
-    kind: Service
-    metadata:
-      name: my-instance
-      labels:
-        app: nginx
-        instance: my-instance
-    spec:
-      ports:
-      - port: 80
-        targetPort: 80
-        name: http
-      selector:
-        app: nginx
-        instance: my-instance`
-
-var ConfigIoLong = `# Configuration IO API Semantics
-
-  Resource Configuration may be read / written from / to sources such as directories,
-  stdin|out or network.  Tools may be composed using pipes such that the tools writing
-  Resource Configuration may be a different tool from the one that read the configuration.
-  In order for tools to be composed in this way, while preserving origin information --
-  such as the original file, index, etc.
-
-  Tools **SHOULD** write the following annotations when reading from sources,
-  and **SHOULD** respect the annotations when writing to syncs.
-
-### ` + "`" + `config.kubernetes.io/path` + "`" + `
-
-  ` + "`" + `config.kubernetes.io/path` + "`" + ` records a relative path on a Resource.  This annotation
-  **SHOULD** be set when reading Resources from files.
-  When writing Resources to a directory, the Resource **SHOULD** be written to the corresponding
-  path relative to that directory.
-
-  Example:
-
-    metadata:
-      annotations:
-        config.kubernetes.io/path: "relative/file/path.yaml"
-
-### ` + "`" + `config.kubernetes.io/index` + "`" + `
-
-  ` + "`" + `config.kubernetes.io/index` + "`" + ` records the index of a Resource into a file which may contain
-  multiple Resource.  This annotation  **SHOULD** be set when reading Resources from files.
-  When writing multiple Resources to the same file, the Resource **SHOULD** be written in the
-  relative order matching the index.
-
-  Example:
-
-    metadata:
-      annotations:
-        config.kubernetes.io/index: "0"
-
-### ` + "`" + `config.kubernetes.io/local-config` + "`" + `
-
-  ` + "`" + `config.kubernetes.io/local-config` + "`" + ` declares that the configuration is to local tools
-  rather than a remote Resource.  e.g. The ` + "`" + `Kustomization` + "`" + ` config in a ` + "`" + `kustomization.yaml` + "`" + `
-  **SHOULD** contain this annotation so that tools know it is not intended to be sent to
-  the Kubernetes api server.
-
-  Example:
-
-    metadata:
-      annotations:
-        config.kubernetes.io/local-config: "true"`
-
-var Merge2Long = `# Merge (2-way)
-
-  2-way merges fields from a source to a destination, overriding the destination fields
-  where they differ.
-
-  ### Merge Rules
-
-  Fields are recursively merged using the following rules:
-
-  - scalars
-    - if present only in the dest, it keeps its value
-    - if present in the src and is non-null, take the src value -- if ` + "`" + `null` + "`" + `, clear it
-    - example src: ` + "`" + `5` + "`" + `, dest: ` + "`" + `3` + "`" + ` => result: ` + "`" + `5` + "`" + `
-
-  - non-associative lists -- lists without a merge key
-    - if present only in the dest, it keeps its value
-    - if present in the src and is non-null, take the src value -- if ` + "`" + `null` + "`" + `, clear it
-    - example src: ` + "`" + `[1, 2, 3]` + "`" + `, dest: ` + "`" + `[a, b, c]` + "`" + ` => result: ` + "`" + `[1, 2, 3]` + "`" + `
-
-  - map keys and fields -- paired by the map-key / field-name
-    - if present only in the dest, it keeps its value
-    - if present only in the src, it is added to the dest
-    - if the field is present in both the src and dest, and the src value is
-      ` + "`" + `null` + "`" + `, the field is removed from the dest
-    - if the field is present in both the src and dest, the value is recursively merged
-    - example src: ` + "`" + `{'key1': 'value1', 'key2': 'value2'}` + "`" + `,
-      dest: ` + "`" + `{'key2': 'value0', 'key3': 'value3'}` + "`" + `
-      => result: ` + "`" + `{'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}` + "`" + `
-
-  - associative list elements -- paired by the associative key
-    - if present only in the dest, it keeps its value in the list
-    - if present only in the src, it is added to the dest list
-    - if the field is present in both the src and dest, the value is recursively merged
-
-  ### Associative Keys
-
-  Associative keys are used to identify "same" elements within 2 different lists, and merge them.
-  The following fields are recognized as associative keys:
-
-  [` + "`" + `mountPath` + "`" + `, ` + "`" + `devicePath` + "`" + `, ` + "`" + `ip` + "`" + `, ` + "`" + `type` + "`" + `, ` + "`" + `topologyKey` + "`" + `, ` + "`" + `name` + "`" + `, ` + "`" + `containerPort` + "`" + `]
-
-  Any lists where all of the elements contain associative keys will be merged as associative lists.
-
-  ### Example
-
-  > Source
-
-	apiVersion: apps/v1
-	kind: Deployment
-	spec:
-	  replicas: 3 # scalar
-	  template:
-	    spec:
-	      containers:  # associative list -- (name)
-	      - name: nginx
-	        image: nginx:1.7
-	        command: ['new_run.sh', 'arg1'] # non-associative list
-	      - name: sidecar2
-	        image: sidecar2:v1
-
-  > Destination
-
-	apiVersion: apps/v1
-	kind: Deployment
-	spec:
-	  replicas: 1
-	  template:
-	    spec:
-	      containers:
-	      - name: nginx
-	        image: nginx:1.6
-	        command: ['old_run.sh', 'arg0']
-	      - name: sidecar1
-	        image: sidecar1:v1
-
-  > Result
-
-	apiVersion: apps/v1
-	kind: Deployment
-	spec:
-	  replicas: 3 # scalar
-	  template:
-	    spec:
-	      containers:  # associative list -- (name)
-	      - name: nginx
-	        image: nginx:1.7
-	        command: ['new_run.sh', 'arg1'] # non-associative list
-	      - name: sidecar1
-	        image: sidecar1:v1
-	      - name: sidecar2
-	        image: sidecar2:v1`
-
-var Merge3Long = `# Merge (3-way)
-
-  3-way merge identifies changes between an original source + updated source and merges the result
-  into a destination, overriding the destination fields where they have changed between
-  original and updated.
-
-### Resource MergeRules
-
-  - Resources present in the original and deleted from the update are deleted.
-  - Resources missing from the original and added in the update are added.
-  - Resources present only in the dest are kept without changes.
-  - Resources present in both the update and the dest have their fields merged with the destination.
-
-### Field Merge Rules
-
-  Fields are recursively merged using the following rules:
-
-  - scalars
-    - if present in either dest or updated and ` + "`" + `null` + "`" + `, clear the value
-    - if unchanged between original and updated, keep dest value
-    - if changed between original and updated (added, deleted, changed), take the updated value
-
-  - non-associative lists -- lists without a merge key
-    - if present in either dest or updated and ` + "`" + `null` + "`" + `, clear the value
-    - if unchanged between original and updated, keep dest value
-    - if changed between original and updated (added, deleted, changed), take the updated value
-
-  - map keys and fields -- paired by the map-key / field-name
-    - if present in either dest or updated and ` + "`" + `null` + "`" + `, clear the value
-    - if present only in the dest, it keeps its value
-    - if not-present in the dest, add the delta between original-updated as a field
-    - otherwise recursively merge the value between original, updated, dest
-
-  - associative list elements -- paired by the associative key
-    - if present only in the dest, it keeps its value
-    - if not-present in the dest, add the delta between original-updated as a field
-    - otherwise recursively merge the value between original, updated, dest
-
-### Associative Keys
-
-  Associative keys are used to identify "same" elements within 2 different lists, and merge them.
-  The following fields are recognized as associative keys:
-
-  [` + "`" + `mountPath` + "`" + `, ` + "`" + `devicePath` + "`" + `, ` + "`" + `ip` + "`" + `, ` + "`" + `type` + "`" + `, ` + "`" + `topologyKey` + "`" + `, ` + "`" + `name` + "`" + `, ` + "`" + `containerPort` + "`" + `]
-
-  Any lists where all of the elements contain associative keys will be merged as associative lists.`

cmd/config/cmds/cmds.go

@@ -1,102 +0,0 @@
-// Copyright 2019 The Kubernetes Authors.
-// SPDX-License-Identifier: Apache-2.0
-
-// Package cmds provides a target for embedding the config command group in another
-// cobra command.
-package cmds
-
-import (
-	"strings"
-
-	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/cmd/config/cmd"
-	"sigs.k8s.io/kustomize/cmd/config/cmddocs/api"
-	"sigs.k8s.io/kustomize/cmd/config/cmddocs/tutorials"
-)
-
-var root = &cobra.Command{
-	Use:   "config",
-	Short: "[Alpha] Utilities for working with Resource Configuration.",
-	Long: `[Alpha] Utilities for working with Resource Configuration.
-
-Tutorials:
-
-  Run 'kustomize help config tutorial-TUTORIAL'
-
-	$ kustomize help config tutorials-command-basics
-
-Command Documentation:
-
-  Run 'kustomize help config CMD'
-
-	$ kustomize help config tree
-
-Advanced Documentation Topics:
-
-  Run 'kustomize help config docs-TOPIC'
-
-	$ kustomize help config docs-merge
-	$ kustomize help config docs-merge3
-	$ kustomize help config docs-fn
-	$ kustomize help config docs-io-annotations
-`,
-	Version: "v0.0.1",
-}
-
-// NewConfigCommand returns a new *cobra.Command for the config command group.  This may
-// be embedded into other go binaries as a way of packaging the "config" command as part
-// of another binary.
-//
-// name is substituted into the built-in documentation for each sub-command as the command
-// invocation prefix -- e.g. if the result is embedded in kustomize, then name should be
-// "kustomize" and the built-in docs will display "kustomize config" in the examples.
-//
-func NewConfigCommand(name string) *cobra.Command {
-	root.PersistentFlags().BoolVar(&cmd.StackOnError, "stack-trace", false,
-		"print a stack-trace on failure")
-
-	name = strings.TrimSpace(name + " config")
-	cmd.ExitOnError = true
-	root.AddCommand(cmd.GrepCommand(name))
-	root.AddCommand(cmd.TreeCommand(name))
-	root.AddCommand(cmd.CatCommand(name))
-	root.AddCommand(cmd.FmtCommand(name))
-	root.AddCommand(cmd.MergeCommand(name))
-	root.AddCommand(cmd.CountCommand(name))
-	root.AddCommand(cmd.RunFnCommand(name))
-
-	root.AddCommand(&cobra.Command{
-		Use:   "docs-merge",
-		Short: "[Alpha] Documentation for merging Resources (2-way merge).",
-		Long:  api.Merge2Long,
-	})
-	root.AddCommand(&cobra.Command{
-		Use:   "docs-merge3",
-		Short: "[Alpha] Documentation for merging Resources (3-way merge).",
-		Long:  api.Merge3Long,
-	})
-	root.AddCommand(&cobra.Command{
-		Use:   "docs-fn",
-		Short: "[Alpha] Documentation for writing containerized functions run by run.",
-		Long:  api.ConfigFnLong,
-	})
-	root.AddCommand(&cobra.Command{
-		Use:   "docs-io-annotations",
-		Short: "[Alpha] Documentation for annotations used by io.",
-		Long:  api.ConfigIoLong,
-	})
-
-	root.AddCommand(&cobra.Command{
-		Use:   "tutorials-command-basics",
-		Short: "[Alpha] Tutorials for using basic config commands.",
-		Long:  tutorials.ConfigurationBasicsLong,
-	})
-
-	root.AddCommand(&cobra.Command{
-		Use:   "tutorials-function-basics",
-		Short: "[Alpha] Tutorials for using functions.",
-		Long:  tutorials.FunctionBasicsLong,
-	})
-
-	return root
-}

cmd/config/complete/complete.go

@@ -11,7 +11,7 @@ import (
 	"github.com/posener/complete/v2/predict"
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
-	"sigs.k8s.io/kustomize/cmd/config/cmddocs/commands"
+	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 )
 
@@ -52,6 +52,10 @@ func Complete(cmd *cobra.Command) *complete.Command {
 		Flags: map[string]complete.Predictor{},
 		Sub:   map[string]*complete.Command{},
 	}
+	if strings.Contains(cmd.Use, "DIR") {
+		// if usage contains directory, then use a file predictor
+		cc.Args = predict.Dirs("*")
+	}
 
 	// add completion for each subcommand
 	for i := range cmd.Commands() {

cmd/config/configcobra/cmds.go

@@ -0,0 +1,152 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package configcobra provides a target for embedding the config command group in another
+// cobra command.
+package configcobra
+
+import (
+	"strings"
+
+	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/cmd/config/internal/commands"
+	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/api"
+	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/tutorials"
+	"sigs.k8s.io/kustomize/kyaml/commandutil"
+)
+
+var root = &cobra.Command{
+	Use:   "config",
+	Short: "[Alpha] Utilities for working with Resource Configuration.",
+	Long: `[Alpha] Utilities for working with Resource Configuration.
+
+Tutorials:
+
+  Run 'kustomize help config tutorial-TUTORIAL'
+
+	$ kustomize help config tutorials-command-basics
+
+Command Documentation:
+
+  Run 'kustomize help config CMD'
+
+	$ kustomize help config tree
+
+Advanced Documentation Topics:
+
+  Run 'kustomize help config docs-TOPIC'
+
+	$ kustomize help config docs-merge
+	$ kustomize help config docs-merge3
+	$ kustomize help config docs-fn
+	$ kustomize help config docs-io-annotations
+`,
+}
+
+// Export commands publicly for composition
+var (
+	Annotate     = commands.AnnotateCommand
+	Cat          = commands.CatCommand
+	Count        = commands.CountCommand
+	CreateSetter = commands.CreateSetterCommand
+	Fmt          = commands.FmtCommand
+	Grep         = commands.GrepCommand
+	ListSetters  = commands.ListSettersCommand
+	Merge        = commands.MergeCommand
+	Merge3       = commands.Merge3Command
+	RunFn        = commands.RunFnCommand
+	Set          = commands.SetCommand
+	Sink         = commands.SinkCommand
+	Source       = commands.SourceCommand
+	Tree         = commands.TreeCommand
+	Wrap         = commands.WrapCommand
+	XArgs        = commands.XArgsCommand
+
+	StackOnError = &commands.StackOnError
+	ExitOnError  = &commands.ExitOnError
+)
+
+// NewConfigCommand returns a new *cobra.Command for the config command group.  This may
+// be embedded into other go binaries as a way of packaging the "config" command as part
+// of another binary.
+//
+// name is substituted into the built-in documentation for each sub-command as the command
+// invocation prefix -- e.g. if the result is embedded in kustomize, then name should be
+// "kustomize" and the built-in docs will display "kustomize config" in the examples.
+//
+func NewConfigCommand(name string) *cobra.Command {
+	// config command is alpha
+	root.Version = "v0.0.0"
+
+	// Only populate the command if Alpha commands are enabled.
+	if !commandutil.GetAlphaEnabled() {
+		// return the command because other subcommands are added to it
+		root.Short = "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true"
+		root.Long = "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true"
+		root.Example = ""
+		return root
+	}
+
+	root.PersistentFlags().BoolVar(&commands.StackOnError, "stack-trace", false,
+		"print a stack-trace on failure")
+
+	name = strings.TrimSpace(name + " config")
+	commands.ExitOnError = true
+	root.AddCommand(commands.AnnotateCommand(name))
+	root.AddCommand(commands.GrepCommand(name))
+	root.AddCommand(commands.TreeCommand(name))
+	root.AddCommand(commands.CatCommand(name))
+	root.AddCommand(commands.FmtCommand(name))
+	root.AddCommand(commands.MergeCommand(name))
+	root.AddCommand(commands.Merge3Command(name))
+	root.AddCommand(commands.CountCommand(name))
+	root.AddCommand(commands.RunFnCommand(name))
+	root.AddCommand(commands.XArgsCommand())
+	root.AddCommand(commands.WrapCommand())
+
+	root.AddCommand(commands.SetCommand(name))
+	root.AddCommand(commands.ListSettersCommand(name))
+	root.AddCommand(commands.CreateSetterCommand(name))
+	root.AddCommand(commands.SinkCommand(name))
+	root.AddCommand(commands.SourceCommand(name))
+
+	root.AddCommand(&cobra.Command{
+		Use:   "docs-merge",
+		Short: "[Alpha] Documentation for merging Resources (2-way merge).",
+		Long:  api.Merge2Long,
+	})
+	root.AddCommand(&cobra.Command{
+		Use:   "docs-merge3",
+		Short: "[Alpha] Documentation for merging Resources (3-way merge).",
+		Long:  api.Merge3Long,
+	})
+	root.AddCommand(&cobra.Command{
+		Use:   "docs-fn",
+		Short: "[Alpha] Documentation for developing and invoking Configuration Functions.",
+		Long:  api.FunctionsImplLong,
+	})
+	root.AddCommand(&cobra.Command{
+		Use:   "docs-fn-spec",
+		Short: "[Alpha] Documentation for Configuration Functions Specification.",
+		Long:  api.FunctionsSpecLong,
+	})
+	root.AddCommand(&cobra.Command{
+		Use:   "docs-io-annotations",
+		Short: "[Alpha] Documentation for annotations used by io.",
+		Long:  api.ConfigIoLong,
+	})
+
+	root.AddCommand(&cobra.Command{
+		Use:   "tutorials-command-basics",
+		Short: "[Alpha] Tutorials for using basic config commands.",
+		Long:  tutorials.ConfigurationBasicsLong,
+	})
+
+	root.AddCommand(&cobra.Command{
+		Use:   "tutorials-function-basics",
+		Short: "[Alpha] Tutorials for using functions.",
+		Long:  tutorials.FunctionBasicsLong,
+	})
+
+	return root
+}

cmd/config/configcobra/example_test.go

@@ -1,20 +1,25 @@
 // Copyright 2019 The Kubernetes Authors.
 // SPDX-License-Identifier: Apache-2.0
 
-package cmds_test
+package configcobra_test
 
 import (
+	"os"
+
 	"github.com/spf13/cobra"
-	"sigs.k8s.io/kustomize/cmd/config/cmds"
+	"sigs.k8s.io/kustomize/cmd/config/configcobra"
+	"sigs.k8s.io/kustomize/kyaml/commandutil"
 )
 
 // ExampleNewConfigCommand demonstrates how to embed the config command as a command inside
 // another group.
 func ExampleNewConfigCommand() {
+	// enable the config commands
+	os.Setenv(commandutil.EnableAlphaCommmandsEnvName, "true")
 	var root = &cobra.Command{
 		Use:   "my-cmd",
 		Short: "My command.",
 		Long:  `My command.`,
 	}
-	root.AddCommand(cmds.NewConfigCommand("my-cmd"))
+	root.AddCommand(configcobra.NewConfigCommand("my-cmd"))
 }

cmd/config/docs/api-conventions/config-fn.md

@@ -1,281 +0,0 @@
-# Configuration Functions API Semantics
-
-  Configuration Functions are functions packaged as executables in containers which enable
-  **shift-left practices**.  They configure applications and infrastructure through
-  Kubernetes style Resource Configuration, but run locally pre-commit.
-
-  Configuration functions enable shift-left practices (client-side) through:
-
-  - Pre-commit / delivery validation and linting of configuration
-    - e.g. Fail if any containers don't have PodSecurityPolicy or CPU / Memory limits
-  - Implementation of abstractions as client actuated APIs (e.g. templating)
-    - e.g. Create a client-side *"CRD"* for generating configuration checked into git
-  - Aspect Orient configuration / Injection of cross-cutting configuration
-    - e.g. T-Shirt size containers by annotating Resources with `small`, `medium`, `large`
-      and inject the cpu and memory resources into containers accordingly.
-    - e.g. Inject `init` and `side-car` containers into Resources based off of Resource
-      Type, annotations, etc.
-
-  Performing these on the client rather than the server enables:
-
-  - Configuration to be reviewed prior to being sent to the API server
-  - Configuration to be validated as part of the CD pipeline
-  - Configuration for Resources to validated holistically rather than individually
-    per-Resource -- e.g. ensure the `Service.selector` and `Deployment.spec.template` labels
-    match.
-    - MutatingWebHooks are scoped to a single Resource instance at a time.
-  - Low-level tweaks to the output of high-level abstractions -- e.g. add an `init container`
-    to a client *"CRD"* Resource after it was generated.
-  - Composition and layering of multiple functions together
-    - Compose generation, injection, validation together
-
-  Configuration Functions are implemented as executable programs published in containers which:
-
-  - Accept as input (stdin):
-    - A list of Resource Configuration
-    - A Function Configuration (to configure the function itself)
-  - Emit as output (stdout + exit):
-    - A list of Resource Configuration
-    - An exit code for success / failure
-
-### Function Specification
-
-  - Functions **SHOULD** be published as container images containing a `CMD` invoking an executable.
-  - Functions **MUST** accept input on STDIN a `ResourceList` containing the Resources and
-    `functionConfig`.
-  - Functions **MUST** emit output on STDOUT a `ResourceList` containing the modified
-    Resources.
-  - Functions **MUST** exit non-0 on failure, and exit 0 on success.
-  - Functions **MAY** emit output on STDERR with error messaging.
-  - Functions performing validation **SHOULD** exit failure and emit error messaging
-    on a validation failure.
-  - Functions generating Resources **SHOULD** retain non-conflicting changes on the
-    generated Resources -- e.g. 1. the function generates a Deployment, but doesn't
-    specify `cpu`, 2. the user sets the `cpu` on the generated Resource, 3. the
-    function should keep the `cpu` when regenerating the Resource a second time.
-  - Functions **SHOULD** be usable outside `kustomize config run` -- e.g. though pipeline
-    mechanisms such as Tekton.
-
-#### Input Format
-
-  Functions must accept on STDIN:
-
-  `ResourceList`:
-  - contains `items` field, same as `List.items`
-  - contains `functionConfig` field -- a single item with the configuration for the function itself
-
-  Example `ResourceList` Input:
-
-    apiVersion: config.kubernetes.io/v1alpha1
-    kind: ResourceList
-    functionConfig:
-      apiVersion: example.com/v1beta1
-      kind: Nginx
-      metadata:
-        name: my-instance
-        annotations:
-          config.kubernetes.io/local-config: "true"
-      spec:
-        replicas: 5
-    items:
-    -  apiVersion: apps/v1
-       kind: Deployment
-       metadata:
-         name: my-instance
-       spec:
-         replicas: 3
-         ...
-    - apiVersion: v1
-      kind: Service
-      metadata:
-        name: my-instance
-      spec:
-        ...
-
-#### Output Format
-
-  Functions must emit on STDOUT:
-
-  `ResourceList`:
-  - contains `items` field, same as `List.items`
-
-  Example `ResourceList` Output:
-
-    apiVersion: config.kubernetes.io/v1alpha1
-    kind: ResourceList
-    items:
-    -  apiVersion: apps/v1
-       kind: Deployment
-       metadata:
-         name: my-instance
-       spec:
-         replicas: 5
-         ...
-    - apiVersion: v1
-      kind: Service
-      metadata:
-        name: my-instance
-      spec:
-        ...
-
-#### Container Environment
-
-  When run by `kustomize config run`, functions are run in containers with the
-  following environment:
-
-  - Network: `none`
-  - User: `nobody`
-  - Security Options: `no-new-privileges`
-  - Volumes: the volume containing the `functionConfig` yaml is mounted under `/local` as `ro`
-
-### Example Function Implementation
-
-  Following is an example for implementing an nginx abstraction using a config
-  function.
-
-#### `nginx-template.sh`
-
-  `nginx-template.sh` is a simple bash script which uses a *heredoc* as a templating solution
-  for generating Resources from the functionConfig input fields.
-
-  The script wraps itself using `config run wrap -- $0` which will:
-
-  1. Parse the `ResourceList.functionConfig` (provided to the container stdin) into env vars
-  2. Merge the stdout into the original list of Resources
-  3. Defaults filenames for newly generated Resources (if they are not set as annotations)
-     to `config/NAME_KIND.yaml`
-  4. Format the output
-
-    #!/bin/bash
-    # script must run wrapped by `kustomize config run wrap`
-    # for parsing input the functionConfig into env vars
-    if [ -z ${WRAPPED} ]; then
-      export WRAPPED=true
-      config run wrap -- $0
-      exit $?
-    fi
-
-    cat <<End-of-message
-    apiVersion: v1
-    kind: Service
-    metadata:
-      name: ${NAME}
-      labels:
-        app: nginx
-        instance: ${NAME}
-    spec:
-      ports:
-      - port: 80
-        targetPort: 80
-        name: http
-      selector:
-        app: nginx
-        instance: ${NAME}
-    ---
-    apiVersion: apps/v1
-    kind: Deployment
-    metadata:
-      name: ${NAME}
-      labels:
-        app: nginx
-        instance: ${NAME}
-    spec:
-      replicas: ${REPLICAS}
-      selector:
-        matchLabels:
-          app: nginx
-          instance: ${NAME}
-      template:
-        metadata:
-          labels:
-            app: nginx
-            instance: ${NAME}
-        spec:
-          containers:
-          - name: nginx
-            image: nginx:1.7.9
-            ports:
-            - containerPort: 80
-    End-of-message
-
-#### `Dockerfile`
-
-  `Dockerfile` installs `kustomize config` and copies the script into the container image.
-
-    FROM golang:1.13-stretch
-    RUN go get sigs.k8s.io/kustomize/cmd/config
-    RUN mv /go/bin/config /usr/bin/config
-    COPY nginx-template.sh /usr/bin/nginx-template.sh
-    CMD ["nginx-template.sh]
-
-### Example Function Usage
-
-Following is an example of running the `kustomize config run` using the preceding API.
-
-#### `nginx.yaml` (Input)
-
-  `dir/nginx.yaml` contains a reference to the Function.  The contents of `nginx.yaml`
-  are passed to the Function through the `ResourceList.functionConfig` field.
-
-    apiVersion: example.com/v1beta1
-    kind: Nginx
-    metadata:
-      name: my-instance
-      annotations:
-        config.kubernetes.io/local-config: "true"
-      configFn:
-        container:
-          image: gcr.io/example-functions/nginx-template:v1.0.0
-    spec:
-      replicas: 5
-
-  - `configFn.container.image`: the image to use for this API
-  - `annotations[config.kubernetes.io/local-config]`: mark this as not a Resource that should
-    be applied
-
-#### `kustomize config run dir/` (Output)
-
-  `dir/my-instance_deployment.yaml` contains the Deployment:
-
-    apiVersion: apps/v1
-    kind: Deployment
-    metadata:
-      name: my-instance
-      labels:
-        app: nginx
-        instance: my-instance
-    spec:
-      replicas: 5
-      selector:
-        matchLabels:
-          app: nginx
-          instance: my-instance
-      template:
-        metadata:
-          labels:
-            app: nginx
-            instance: my-instance
-        spec:
-          containers:
-          - name: nginx
-            image: nginx:1.7.9
-            ports:
-            - containerPort: 80
-
-  `dir/my-instance_service.yaml` contains the Service:
-
-    apiVersion: v1
-    kind: Service
-    metadata:
-      name: my-instance
-      labels:
-        app: nginx
-        instance: my-instance
-    spec:
-      ports:
-      - port: 80
-        targetPort: 80
-        name: http
-      selector:
-        app: nginx
-        instance: my-instance

cmd/config/docs/api-conventions/config-io.md

@@ -4,16 +4,17 @@ Resource Configuration may be read / written from / to sources such as directori
 stdin|out or network. Tools may be composed using pipes such that the tools writing
 Resource Configuration may be a different tool from the one that read the configuration.
 In order for tools to be composed in this way, while preserving origin information --
-such as the original file, index, etc.
+such as the original file, index, etc.:
 
-Tools **SHOULD** write the following annotations when reading from sources,
-and **SHOULD** respect the annotations when writing to sinks.
+Tools **SHOULD** insert the following annotations when reading from sources,
+and **SHOULD** delete the annotations when writing to sinks.
 
 ### `config.kubernetes.io/path`
 
 Records the slash-delimited, OS-agnostic, relative file path to a Resource.
 
 This annotation **SHOULD** be set when reading Resources from files.
+It **SHOULD** be unset when writing Resources to files.
 When writing Resources to a directory, the Resource **SHOULD** be written to the corresponding
 path relative to that directory.
 
@@ -27,10 +28,11 @@ metadata:
 
 ### `config.kubernetes.io/index`
 
-Records the index of a Resource in file. In a multi-object files YAML file, Resources are separated
-by three dashes (`---`), and the index represents the positon of the Resource starting from zero.
+Records the index of a Resource in file. In a multi-object YAML file, Resources are separated
+by three dashes (`---`), and the index represents the position of the Resource starting from zero.
 
 This annotation **SHOULD** be set when reading Resources from files.
+It **SHOULD** be unset when writing Resources to files.
 When writing multiple Resources to the same file, the Resource **SHOULD** be written in the
 relative order matching the index.
 

cmd/config/docs/api-conventions/functions-impl.md

@@ -0,0 +1,181 @@
+# Running Configuration Functions using kustomize CLI
+
+Configuration functions can be implemented using any toolchain and invoked using any
+container workflow orchestrator including Tekton, Cloud Build, or run directly using `docker run`.
+
+Run `config help docs-fn-spec` to see the Configuration Functions Specification.
+
+`kustomize config run` is an example orchestrator for invoking Configuration Functions. This
+document describes how to implement and invoke an example function.
+
+## Example Function Implementation
+
+Following is an example for implementing an nginx abstraction using a configuration
+function.
+
+### `nginx-template.sh`
+
+`nginx-template.sh` is a simple bash script which uses a _heredoc_ as a templating solution
+for generating Resources from the functionConfig input fields.
+
+The script wraps itself using `config run wrap -- $0` which will:
+
+1. Parse the `ResourceList.functionConfig` (provided to the container stdin) into env vars
+2. Merge the stdout into the original list of Resources
+3. Defaults filenames for newly generated Resources (if they are not set as annotations)
+   to `config/NAME_KIND.yaml`
+4. Format the output
+
+```bash
+#!/bin/bash
+# script must run wrapped by "kustomize config run wrap"
+# for parsing input the functionConfig into env vars
+if [ -z ${WRAPPED} ]; then
+  export WRAPPED=true
+  config run wrap -- $0
+  exit $?
+fi
+
+cat <<End-of-message
+apiVersion: v1
+kind: Service
+metadata:
+  name: ${NAME}
+  labels:
+    app: nginx
+    instance: ${NAME}
+spec:
+  ports:
+  - port: 80
+    targetPort: 80
+    name: http
+  selector:
+    app: nginx
+    instance: ${NAME}
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ${NAME}
+  labels:
+    app: nginx
+    instance: ${NAME}
+spec:
+  replicas: ${REPLICAS}
+  selector:
+    matchLabels:
+      app: nginx
+      instance: ${NAME}
+  template:
+    metadata:
+      labels:
+        app: nginx
+        instance: ${NAME}
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.7.9
+        ports:
+        - containerPort: 80
+End-of-message
+```
+
+### Dockerfile
+
+`Dockerfile` installs `kustomize config` and copies the script into the container image.
+
+```
+FROM golang:1.13-stretch
+RUN go get sigs.k8s.io/kustomize/cmd/config
+RUN mv /go/bin/config /usr/bin/config
+COPY nginx-template.sh /usr/bin/nginx-template.sh
+CMD ["nginx-template.sh]
+```
+
+## Example Function Usage
+
+Following is an example of running the `kustomize config run` using the preceding API.
+
+When run by `kustomize config run`, functions are run in containers with the
+following environment:
+
+- Network: `none`
+- User: `nobody`
+- Security Options: `no-new-privileges`
+- Volumes: the volume containing the `functionConfig` yaml is mounted under `/local` as `ro`
+
+### Input
+
+`dir/nginx.yaml` contains a reference to the Function. The contents of `nginx.yaml`
+are passed to the Function through the `ResourceList.functionConfig` field.
+
+```yaml
+apiVersion: example.com/v1beta1
+kind: Nginx
+metadata:
+  name: my-instance
+  annotations:
+    config.kubernetes.io/local-config: "true"
+    config.k8s.io/function: |
+      container:
+        image: gcr.io/example-functions/nginx-template:v1.0.0
+spec:
+  replicas: 5
+```
+
+- `annotations[config.k8s.io/function].container.image`: the image to use for this API
+- `annotations[config.kubernetes.io/local-config]`: mark this as not a Resource that should
+  be applied
+
+### Output
+
+The function is invoked using byrunning `kustomize config run dir/`.
+
+`dir/my-instance_deployment.yaml` contains the Deployment:
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-instance
+  labels:
+    app: nginx
+    instance: my-instance
+spec:
+  replicas: 5
+  selector:
+    matchLabels:
+      app: nginx
+      instance: my-instance
+  template:
+    metadata:
+      labels:
+        app: nginx
+        instance: my-instance
+    spec:
+      containers:
+        - name: nginx
+          image: nginx:1.7.9
+          ports:
+            - containerPort: 80
+```
+
+`dir/my-instance_service.yaml` contains the Service:
+
+```yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-instance
+  labels:
+    app: nginx
+    instance: my-instance
+spec:
+  ports:
+    - port: 80
+      targetPort: 80
+      name: http
+  selector:
+    app: nginx
+    instance: my-instance
+```

cmd/config/docs/api-conventions/functions-spec.md

@@ -0,0 +1,186 @@
+# Configuration Functions Specification
+
+This document specifies a standard for client-side functions that operate on
+Kubernetes declarative configurations. This standard enables creating
+small, interoperable, and language-independent executable programs packaged as
+containers that can be chained together as part of a configuration management pipeline.
+The end result of such a pipeline are fully rendered configurations that can then be
+applied to a control plane (e.g. Using ‘kubectl apply’ for Kubernetes control plane).
+As such, although this document references Kubernetes Resource Model and API conventions,
+it is completely decoupled from Kuberentes API machinery and does not depend on any
+in-cluster components.
+
+This document references terms described in [Kubernetes API Conventions][1].
+
+The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
+"SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be
+interpreted as described in [RFC 2119][2].
+
+## Use Cases
+
+_Configuration functions_ enable shift-left practices (client-side) through:
+
+- Pre-commit / delivery validation and linting of configuration
+  - e.g. Fail if any containers don't have PodSecurityPolicy or CPU / Memory limits
+- Implementation of abstractions as client actuated APIs (e.g. templating)
+  - e.g. Create a client-side _"CRD"_ for generating configuration checked into git
+- Aspect Orient configuration / Injection of cross-cutting configuration
+  - e.g. T-Shirt size containers by annotating Resources with `small`, `medium`, `large`
+    and inject the cpu and memory resources into containers accordingly.
+  - e.g. Inject `init` and `side-car` containers into Resources based off of Resource
+    Type, annotations, etc.
+
+Performing these on the client rather than the server enables:
+
+- Configuration to be reviewed prior to being sent to the API server
+- Configuration to be validated as part of the CI?CD pipeline
+- Configuration for Resources to validated holistically rather than individually
+  per-Resource
+  - e.g. ensure the `Service.selector` and `Deployment.spec.template` labels
+    match.
+  - e.g. MutatingWebHooks are scoped to a single Resource instance at a time.
+- Low-level tweaks to the output of high-level abstractions
+  - e.g. add an `init container` to a client _"CRD"_ Resource after it was generated.
+- Composition and layering of multiple functions together
+  - Compose generation, injection, validation together
+
+## Spec
+
+### Input Type
+
+A function MUST accept as input a single [Kubernetes List type][3].
+The `items` field in the input will contain a sequence of [Object types][3].
+A function MAY not support [Simple types][3] and List types.
+
+An example using `v1/ConfigMapList` as input:
+
+```yaml
+apiVersion: v1
+kind: ConfigMapList
+items:
+  - apiVersion: v1
+    kind: ConfigMap
+    metadata:
+      name: config1
+    data:
+      p1: v1
+      p2: v2
+  - apiVersion: v1
+    kind: ConfigMap
+    metadata:
+      name: config2
+```
+
+An example using `v1/List` as input:
+
+```yaml
+apiVersion: v1
+kind: List
+items:
+  spec:
+   - apiVersion: foo-corp.com/v1
+    kind: FulfillmentCenter
+    metadata:
+      name: staging
+    address: "100 Main St."
+  - apiVersion: rbac.authorization.k8s.io/v1
+    kind: ClusterRole
+    metadata:
+      name: namespace-reader
+    rules:
+      - resources:
+          - namespaces
+        apiGroups:
+          - ""
+        verbs:
+          - get
+          - watch
+          - list
+```
+
+In addition, a function MUST accept as input a List of kind `ResourceList` where the
+`functionConfig` field, if present, will contain the invocation-specific configuration passed to the function
+by the orchestrator.
+Functions MAY consider this field optional so that they can be triggered in an ad-hoc fashion.
+
+An example using `config.kubernetes.io/v1beta1/ResourceList` as input:
+
+```yaml
+apiVersion: config.kubernetes.io/v1beta1
+kind: ResourceList
+functionConfig:
+  apiVersion: foo-corp.com/v1
+  kind: FulfillmentCenter
+  metadata:
+    name: staging
+    metadata:
+      annotations:
+        config.k8s.io/function: |
+          container:
+            image: gcr.io/example/foo:v1.0.0
+  spec:
+    address: "100 Main St."
+items:
+  - apiVersion: rbac.authorization.k8s.io/v1
+    kind: ClusterRole
+    metadata:
+      name: namespace-reader
+    rules:
+      - resources:
+          - namespaces
+        apiGroups:
+          - ""
+        verbs:
+          - get
+          - watch
+          - list
+```
+
+Here `FulfillmentCenter` kind with name `staging` is passed as the invocation-specific configuration
+to the function.
+
+### Output Type
+
+A function’s output MUST be the same as the input specification above
+-- i.e. `ResourceList` or `List`.
+This is necessary to enable chaining two or more functions together in a pipeline.
+The serialization format of the output SHOULD match that of its input on each invocation
+-- e.g. if the input was a `ResourceList`, the output should also be a `ResourceList`.
+
+### Serialization Format
+
+A function MUST support YAML as a serialization format for the input and output.
+A function MUST use utf8 encoding (as YAML is a superset of JSON, JSON will also be supported
+by any conforming function).
+
+### Operations
+
+A function MAY Create, Update, or Delete any number of items in the `items` field and output the
+resultant list.
+
+A function MAY modify annotations with prefix `config.kubernetes.io`, but must be careful about
+doing so since they’re used for orchestration purposes and will likely impact subsequent functions
+in the pipeline.
+
+A function SHOULD preserve comments when input serialization format is YAML.
+This allows for human authoring of configuration to coexist with changes made by functions.
+
+### Containerization
+
+A function MUST be implemented as a container.
+
+A function container MUST be capable of running as a non-root user if it does not require
+access to host filesystem or makes network calls.
+
+### stdin/stdout/stderr and Exit Codes
+
+A function MUST accept input from stdin and emit output to stdout.
+
+Any error messages MUST be emitted to stderr.
+
+An exit code of zero indicates function execution was successful.
+A non-zero exit code indicates a failure.
+
+[1]: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md
+[2]: https://tools.ietf.org/html/rfc2119
+[3]: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#types-kinds

cmd/config/docs/commands/annotate.md

@@ -0,0 +1,18 @@
+## annotate
+
+[Alpha] Set an annotation on Resources.
+
+### Synopsis
+
+[Alpha]  Set an annotation on Resources.
+
+  DIR:
+    Path to local directory.
+
+### Examples
+
+    kustomize config annotate my-dir/ --kv foo=bar
+
+    kustomize config annotate my-dir/ --kv foo=bar --kv a=b
+
+    kustomize config annotate my-dir/ --kv foo=bar --kind Deployment --name foo

cmd/config/docs/commands/create-setter.md

@@ -0,0 +1,93 @@
+## create-setter
+
+[Alpha] Create a custom setter for a Resource field
+
+### Synopsis
+
+Create a custom setter for a Resource field by inlining OpenAPI as comments.
+
+  DIR
+
+    A directory containing Resource configuration.
+
+  NAME
+
+    The name of the setter to create.
+
+  VALUE
+
+    The current value of the field, or a substring within the field.
+
+### Creating a Custom Setter
+
+**Given the YAML:**
+
+    # resource.yaml
+    apiVersion: v1
+    kind: Service
+    metadata:
+      ...
+    spec:
+      ...
+      ports:
+        ...
+      - name: http
+        port: 8080
+        ...
+
+**Create a new setter:**
+
+    # create a setter for ports
+    $ kustomize config set create DIR/ http-port 8080 --type "integer" --field "port"
+
+  Resources fields with a field name matching `--field` and field value matching `VALUE` will
+  have a line comment added marking this field as settable.
+
+**Newly modified YAML:**
+
+    # resource.yaml
+    apiVersion: v1
+    kind: Service
+    metadata:
+      ...
+    spec:
+      ...
+      ports:
+        ...
+      - name: http
+        port: 8080  # {"type":"integer","x-kustomize":{"partialFieldSetters":[{"name":"http-port","value":"8080"}]}}
+        ...
+
+  Setters may also be defined directly by editing the yaml and adding the comment.
+
+Users may not set the field value using the `set` command:
+
+    # change the http-port value to 8081
+    $ kustomize config set DIR/ http-port 8081
+
+### Using default values
+
+The default values for a setter may be:
+
+- valid field values (e.g. `8080` or `008080` for a port)
+- invalid values that adhere to the schema (e.g. `0000` for a port)
+- values that do not adhere to the schema (e.g. `[PORT]` for port)
+
+A setter may be for a substring of a full field:
+
+    $ kustomize config set create DIR/ image-tag v1.0.01 --type "string" --field "image"
+
+    image: gcr.io/example/app:v1.0.1 # # {"type":"string","x-kustomize":{"partialFieldSetters":[{"name":"image-tag","value":"v1.0.1"}]}}
+
+A single field value may have multiple setters applied to it for different parts of the field.
+
+### Examples
+
+    # create a setter for port fields matching "8080"
+    kustomize config create-setter DIR/ port 8080 --type "integer" --field port \
+         --description "default port used by the app"
+
+    # create a setter for a substring of a field rather than the full field -- e.g. only the
+    # image tag, not the full image
+    kustomize config create-setter DIR/ image-tag v1.0.1 --type "string" \
+        --field image --description "current stable release"

cmd/config/docs/commands/list-setters.md

@@ -0,0 +1,23 @@
+## set
+
+[Alpha] List setters for Resources.
+
+### Synopsis
+
+List setters for Resources.
+
+  DIR
+
+    A directory containing Resource configuration.
+
+  NAME
+
+    Optional.  The name of the setter to display.
+
+### Examples
+
+  Show setters:
+
+    $ config set DIR/
+        NAME      DESCRIPTION   VALUE     TYPE     COUNT   SETBY  
+    name-prefix   ''            PREFIX    string   2

cmd/config/docs/commands/merge3.md

@@ -0,0 +1,23 @@
+## merge3
+
+[Alpha] Merge diff of Resource configuration files into a destination (3-way)
+
+### Synopsis
+
+[Alpha] Merge diff of Resource configuration files into a destination (3-way)
+
+Merge3 performs a 3-way merge by applying the diff between 2 sets of Resources to a 3rd set.
+
+Merge3 may be for rebasing changes to a forked set of configuration -- e.g. compute the difference between the original
+set of Resources that was forked and an updated set of those Resources, then apply that difference to the fork.
+
+If a field value differs between the ORIGINAL_DIR and UPDATED_DIR, the value from the UPDATED_DIR is taken and applied
+to the Resource in the DEST_DIR.
+
+For information on merge rules, run:
+
+	kustomize config docs-merge3
+
+### Examples
+
+    kustomize config merge3 --ancestor a/ --from b/ --to c/

cmd/config/docs/commands/run-fns.md

@@ -22,8 +22,8 @@ order they appear in the file).
 
 #### Config Functions:
 
-  Config functions are specified as Kubernetes types containing a metadata.configFn.container.image
-  field.  This field tells run how to invoke the container.
+  Config functions are specified as Kubernetes types containing a metadata.annotations.[config.kubernetes.io/function]
+  field specifying an image for the container to run.  This image tells run how to invoke the container.
 
   Example config function:
 
@@ -31,17 +31,17 @@ order they appear in the file).
 	apiVersion: fn.example.com/v1beta1
 	kind: ExampleFunctionKind
 	metadata:
-	  configFn:
-	    container:
-	      # function is invoked as a container running this image
-	      image: gcr.io/example/examplefunction:v1.0.1
 	  annotations:
+	    config.kubernetes.io/function: |
+	      container:
+	        # function is invoked as a container running this image
+	        image: gcr.io/example/examplefunction:v1.0.1
 	    config.kubernetes.io/local-config: "true" # tools should ignore this
 	spec:
 	  configField: configValue
 
   In the preceding example, 'kustomize config run example/' would identify the function by
-  the metadata.configFn field.  It would then write all Resources in the directory to
+  the metadata.annotations.[config.kubernetes.io/function] field.  It would then write all Resources in the directory to
   a container stdin (running the gcr.io/example/examplefunction:v1.0.1 image).  It
   would then write the container stdout back to example/, replacing the directory
   file contents.

cmd/config/docs/commands/set.md

@@ -0,0 +1,87 @@
+## set
+
+[Alpha] Set values on Resources fields values.
+
+### Synopsis
+
+Set values on Resources fields.  May set either the complete or partial field value.
+
+`set` identifies setters using field metadata published as OpenAPI extensions.
+`set` parses both the Kubernetes OpenAPI, as well OpenAPI published inline in
+the configuration as comments.
+
+`set` maybe be used to:
+
+- edit configuration programmatically from the cli
+- create reusable bundles of configuration with custom setters
+
+  DIR
+
+    A directory containing Resource configuration.
+
+  NAME
+
+    Optional.  The name of the setter to perform or display.
+
+  VALUE
+
+    Optional.  The value to set on the field.
+
+
+To print the possible setters for the Resources in a directory, run `set` on
+a directory -- e.g. `kustomize config set DIR/`.
+
+#### Tips
+
+- A description of the value may be specified with `--description`.
+- The last setter for the field's value may be defined with `--set-by`.
+- Create custom setters on Resources, Kustomization.yaml's, patches, etc
+
+The description and setBy fields are left unmodified unless specified with flags.
+
+To create a custom setter for a field see: `kustomize help config create-setter`
+
+### Examples
+
+  Resource YAML: Name Prefix Setter
+
+    # DIR/resources.yaml
+    ...
+    metadata:
+        name: PREFIX-app1 # {"type":"string","x-kustomize":{"partialFieldSetters":[{"name":"name-prefix","value":"PREFIX"}]}}
+    ...
+    ---
+    ...
+    metadata:
+        name: PREFIX-app2 # {"type":"string","x-kustomize":{"partialFieldSetters":[{"name":"name-prefix","value":"PREFIX"}]}}
+    ...
+
+  List setters: Show the possible setters
+
+    $ config set DIR/
+        NAME      DESCRIPTION   VALUE     TYPE     COUNT   SETBY  
+    name-prefix   ''            PREFIX    string   2
+
+  Perform set: set a new value, owner and description
+
+    $ kustomize config set DIR/ name-prefix "test" --description "test environment" --set-by "dev"
+    set 2 values
+
+  List setters: Show the new values
+
+    $ config set DIR/
+        NAME      DESCRIPTION         VALUE     TYPE     COUNT     SETBY 
+    name-prefix   'test environment'   test     string   2          dev
+
+  New Resource YAML:
+
+    # DIR/resources.yaml
+    ...
+    metadata:
+        name: test-app1 # {"description":"test environment","type":"string","x-kustomize":{"setBy":"dev","partialFieldSetters":[{"name":"name-prefix","value":"test"}]}}
+    ...
+    ---
+    ...
+    metadata:
+        name: test-app2 # {"description":"test environment","type":"string","x-kustomize":{"setBy":"dev","partialFieldSetters":[{"name":"name-prefix","value":"test"}]}}
+    ...

cmd/config/docs/commands/sink.md

@@ -0,0 +1,18 @@
+## sink
+
+[Alpha] Implement a Sink by writing input to a local directory.
+
+### Synopsis
+
+[Alpha] Implement a Sink by writing input to a local directory.
+
+    kustomize config sink DIR
+
+  DIR:
+    Path to local directory.
+
+`sink` writes its input to a directory
+
+### Examples
+
+    kustomize config source DIR/ | your-function | kustomize config sink DIR/

cmd/config/docs/commands/source.md

@@ -0,0 +1,21 @@
+## source
+
+[Alpha] Implement a Source by reading a local directory.
+
+### Synopsis
+
+[Alpha] Implement a Source by reading a local directory.
+
+    kustomize config source DIR
+
+  DIR:
+    Path to local directory.
+
+`source` emits configuration to act as input to a function
+
+### Examples
+
+    # emity configuration directory as input source to a function
+    kustomize config source DIR/
+
+    kustomize config source DIR/ | your-function | kustomize config sink DIR/

cmd/config/docs/commands/tree.md

@@ -20,8 +20,9 @@ container names, etc.
 
 kustomize config tree supports printing arbitrary fields using the '--field' flag.
 
-By default, kustomize config tree uses the directory structure for the tree structure, however when printing
-from the cluster, the Resource graph structure may be used instead.
+By default, kustomize config tree uses Resource graph structure if any relationships between resources (ownerReferences)
+are detected, as is typically the case when printing from a cluster. Otherwise, directory graph structure is used. The
+graph structure can also be selected explicitly using the '--graph-structure' flag.
 
 ### Examples
 
@@ -42,8 +43,7 @@ from the cluster, the Resource graph structure may be used instead.
       --field="status.conditions[type=Completed].status"
 
     # print live Resources from a cluster using owners for graph structure
-    kubectl get all -o yaml | kustomize config tree --replicas --name --image \
-      --graph-structure=owners
+    kubectl get all -o yaml | kustomize config tree --replicas --name --image
 
     # print live Resources with status condition fields
     kubectl get all -o yaml | kustomize config tree \

cmd/config/docs/tutorials/function-basics.md

@@ -39,7 +39,7 @@
   #### 2. Modify the Generated Resources
 
   - modify the generated Resources by adding an annotation, sidecar container, etc.
-  - modify the `local-resources/example-use.yaml` by changing the replicas
+  - modify the `local-resource/example-use.yaml` by changing the replicas
 
   re-run `run`.  this will apply the updated replicas to the generated Resources,
   but keep the fields that you manually added to the generated Resource configuration.
@@ -86,7 +86,7 @@
   #### 2. Modify the Generated Resources
 
   - modify the generated Resources by adding an annotation, sidecar container, etc.
-  - modify the `local-resources/example-use.yaml` by changing the replicas
+  - modify the `local-resource/example-use.yaml` by changing the replicas
 
   re-run `run`.  this will apply the updated replicas to the generated Resources,
   but keep the fields that you manually added to the generated Resource configuration.

cmd/config/fixgomod.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+set -e
+
+: "${kyaml_major?Need to source VERSIONS}"
+: "${kyaml_minor?Need to source VERSIONS}"
+: "${kyaml_patch?Need to source VERSIONS}"
+
+go mod edit -dropreplace=sigs.k8s.io/kustomize/kyaml@v0.0.0
+go mod edit -require=sigs.k8s.io/kustomize/kyaml@v$kyaml_major.$kyaml_minor.$kyaml_patch