Make plugin dir match Go conventions.

plugin/builtin/ChartInflatorExec

@@ -0,0 +1,77 @@
+#!/bin/bash
+set -e
+
+# Helm chart inflator
+
+# Reads a file like this
+#
+#  apiVersion: kustomize.config.k8s.io/v1
+#  kind: ChartInflatorExec
+#  metadata:
+#    name: notImportantHere
+#  chart: chartName
+#  values: /absolute/path/to/values/file
+#  helmBin: /absolute/path/to/helmBin
+#
+# fetches the given chart from stable/$chartName,
+# and inflates it to stdout, using the given values file.
+#
+# Example execution:
+# ./plugins/kustomize.config.k8s.io/v1/ChartInflatorExec configFile.yaml
+
+
+
+# Yaml parsing is a ridiculous thing to do in bash,
+# but let's try:
+function parseYaml {
+  local file=$1
+  while read -r line
+  do
+    local k=${line%:*}
+    local v=${line#*:}
+
+    [ "$k" == "chart" ] && chartName=$v
+    [ "$k" == "values" ] && valuesFile=$v
+    [ "$k" == "helmBin" ] && helmBin=$v
+  done <"$file"
+
+  # Trim leading space
+  chartName="${chartName#"${chartName%%[![:space:]]*}"}"
+  valuesFile="${valuesFile#"${valuesFile%%[![:space:]]*}"}"
+  helmBin="${helmBin#"${helmBin%%[![:space:]]*}"}"
+}
+
+TMP_DIR=$(mktemp -d)
+
+# Where all the files generated by 'helm init' live.
+HELM_HOME=$TMP_DIR/dotHelm
+
+# Where helm charts are unpacked.
+CHART_HOME=$TMP_DIR/charts
+
+parseYaml $1
+
+if [ -z "$helmBin" ]; then
+  helmBin=/usr/local/bin/helm
+fi
+
+if [ -z "$valuesFile" ]; then
+  valuesFile=$CHART_HOME/$chartName/values.yaml
+fi
+
+function doHelm {
+  $helmBin --home $HELM_HOME $@
+}
+
+# The init command is extremely chatty
+doHelm init --client-only >& /dev/null
+
+doHelm fetch --untar \
+    --untardir $CHART_HOME \
+    stable/$chartName
+
+doHelm template \
+    --values $valuesFile \
+    $CHART_HOME/$chartName
+
+/bin/rm -rf $TMP_DIR

plugin/builtin/SecretGenerator.go

@@ -0,0 +1,62 @@
+// +build plugin
+
+package main
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/types"
+)
+
+type plugin struct {
+	ldr     ifc.Loader
+	rf      *resmap.Factory
+	options types.GeneratorOptions
+	args    types.SecretArgs
+}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	p.ldr = ldr
+	p.rf = rf
+
+	var err error
+	// TODO: Should validate this.
+	p.args.Behavior, err = k.GetFieldValue("behavior")
+	if err != nil {
+		return err
+	}
+
+	envFiles, err := k.GetStringSlice("envFiles")
+	if err != nil {
+		return err
+	}
+	if len(envFiles) > 2 {
+		// TODO: refactor to allow this
+		return fmt.Errorf("cannot yet accept more than one envFile")
+	}
+	if len(envFiles) > 0 {
+		p.args.EnvSource = envFiles[0]
+	}
+
+	p.args.FileSources, err = k.GetStringSlice("valueFiles")
+	if err != nil {
+		return err
+	}
+	p.args.LiteralSources, err = k.GetStringSlice("literals")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (p *plugin) Generate() (resmap.ResMap, error) {
+	argsList := make([]types.SecretArgs, 1)
+	argsList[0] = p.args
+	return p.rf.NewResMapFromSecretArgs(p.ldr, &p.options, argsList)
+}

plugin/someteam.example.com/v1/ConfigMapGenerator

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Skip the config file name argument.
+shift
+
+echo "
+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: example-configmap-test
+data:
+  username: $1
+  password: $2
+"

plugin/someteam.example.com/v1/DatePrefixer.go

@@ -0,0 +1,37 @@
+// +build plugin
+
+package main
+
+import (
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+)
+
+type plugin struct{}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	return nil
+}
+
+// Returns a constant, rather than
+//   time.Now().Format("2006-01-02")
+// to make tests happy.
+// This is just an example.
+func getDate() string {
+	return "2018-05-11"
+}
+
+func (p *plugin) Transform(m resmap.ResMap) error {
+	tr, err := transformers.NewNamePrefixSuffixTransformer(
+		getDate()+"-", "",
+		config.MakeDefaultConfig().NamePrefix)
+	if err != nil {
+		return err
+	}
+	return tr.Transform(m)
+}

plugin/someteam.example.com/v1/PrintWorkDir

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+dir=`pwd`
+
+echo "
+kind: WorkDir
+apiVersion: v1
+metadata:
+  name: $dir
+spec:
+  path: ${KUSTOMIZE_PLUGIN_CONFIG_ROOT}
+"

plugin/someteam.example.com/v1/SedTransformer

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Skip the config file name argument.
+shift
+
+args=""
+for arg in $@; do
+  args="$args -e $arg"
+done
+
+cat - | sed $args

plugin/someteam.example.com/v1/ServiceGenerator.go

@@ -0,0 +1,60 @@
+// +build plugin
+
+package main
+
+import (
+	"bytes"
+	"text/template"
+
+	"sigs.k8s.io/kustomize/k8sdeps/kunstruct"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/resource"
+)
+
+type plugin struct {
+	ServiceName string
+	Port        string
+}
+
+var KustomizePlugin plugin
+
+var manifest = `
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: dev
+  name: {{.ServiceName}}
+spec:
+  ports:
+  - port: {{.Port}}
+  selector:
+    app: dev
+`
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	var err error
+	p.ServiceName, err = k.GetFieldValue("service")
+	if err != nil {
+		return err
+	}
+	p.Port, err = k.GetFieldValue("port")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (p *plugin) Generate() (resmap.ResMap, error) {
+	var buf bytes.Buffer
+
+	temp := template.Must(template.New("manifest").Parse(manifest))
+	err := temp.Execute(&buf, p)
+	if err != nil {
+		return nil, err
+	}
+	rf := resmap.NewFactory(resource.NewFactory(kunstruct.NewKunstructuredFactoryImpl()))
+	return rf.NewResMapFromBytes(buf.Bytes())
+}

plugin/someteam.example.com/v1/StringPrefixer.go

@@ -0,0 +1,46 @@
+// +build plugin
+
+// Assuming GOPATH is something like
+//   ~/gopath
+// and this source file is located at
+//   $GOPATH/src/sigs.k8s.io/kustomize/plugins/StringPrefixer.go,
+// build it like this:
+//   dir=$GOPATH/src/sigs.k8s.io/kustomize/plugins
+//   go build -buildmode plugin -tags=plugin \
+//     -o $dir/StringPrefixer.so $dir/StringPrefixer.go
+
+package main
+
+import (
+	"fmt"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+)
+
+type plugin struct {
+	prefix string
+}
+
+var KustomizePlugin plugin
+
+func (p *plugin) Config(
+	ldr ifc.Loader, rf *resmap.Factory, k ifc.Kunstructured) error {
+	name := k.GetName()
+	if name == "" {
+		return fmt.Errorf("name cannot be empty")
+	}
+	p.prefix = name + "-"
+	return nil
+}
+
+func (p *plugin) Transform(m resmap.ResMap) error {
+	tr, err := transformers.NewNamePrefixSuffixTransformer(
+		p.prefix, "",
+		config.MakeDefaultConfig().NamePrefix)
+	if err != nil {
+		return err
+	}
+	return tr.Transform(m)
+}

plugin/someteam.example.com/v1/kvMaker.go

@@ -0,0 +1,27 @@
+// +build plugin
+
+package main
+
+var database = map[string]string{
+	"TREE":      "oak",
+	"ROCKET":    "Saturn V",
+	"FRUIT":     "apple",
+	"VEGETABLE": "carrot",
+	"SIMPSON":   "homer",
+}
+
+type plugin struct{}
+
+var KVSource plugin
+
+func (p plugin) Get(
+	root string, args []string) (map[string]string, error) {
+	r := make(map[string]string)
+	for _, k := range args {
+		v, ok := database[k]
+		if ok {
+			r[k] = v
+		}
+	}
+	return r, nil
+}