Rename resourceGetter to remoteTargetGetter for readability

api/loader/getter.go

@@ -0,0 +1,101 @@
+// Copyright 2020 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package loader
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/yujunz/go-getter"
+	"sigs.k8s.io/kustomize/api/filesys"
+	"sigs.k8s.io/kustomize/api/ifc"
+	"sigs.k8s.io/kustomize/api/internal/git"
+)
+
+type remoteTargetSpec struct {
+	// Raw is the original resource in kustomization.yaml
+	Raw string
+
+	// Dir is where the resource is saved
+	Dir filesys.ConfirmedDir
+}
+
+// Getter is a function that can gets resource
+type remoteTargetGetter func(rs *remoteTargetSpec) error
+
+func newLoaderAtGetter(raw string, fSys filesys.FileSystem, referrer *fileLoader, cloner git.Cloner, getter remoteTargetGetter) (ifc.Loader, error) {
+	rs := &remoteTargetSpec{
+		Raw: raw,
+	}
+
+	cleaner := func() error {
+		return fSys.RemoveAll(rs.Dir.String())
+	}
+
+	if err := getter(rs); err != nil {
+		cleaner()
+		return nil, err
+	}
+
+	return &fileLoader{
+		loadRestrictor: RestrictionRootOnly,
+		// TODO(yujunz): limit to getter root
+		root:     rs.Dir,
+		referrer: referrer,
+		fSys:     fSys,
+		cloner:   cloner,
+		rscSpec:  rs,
+		getter:   getter,
+		cleaner:  cleaner,
+	}, nil
+}
+
+func getRemoteTarget(rs *remoteTargetSpec) error {
+	var err error
+
+	rs.Dir, err = filesys.NewTmpConfirmedDir()
+	if err != nil {
+		return err
+	}
+
+	// Get the pwd
+	pwd, err := os.Getwd()
+	if err != nil {
+		log.Fatalf("Error getting wd: %s", err)
+	}
+
+	opts := []getter.ClientOption{}
+	client := &getter.Client{
+		Ctx:  context.TODO(),
+		Src:  rs.Raw,
+		Dst:  rs.Dir.String(),
+		Pwd:  pwd,
+		Mode: getter.ClientModeAny,
+		Detectors: []getter.Detector{
+			new(getter.GitHubDetector),
+			new(getter.GitDetector),
+			new(getter.BitBucketDetector),
+		},
+		Options: opts,
+	}
+	return client.Get()
+}
+
+func getNothing(rs *remoteTargetSpec) error {
+	var err error
+	rs.Dir, err = filesys.NewTmpConfirmedDir()
+	if err != nil {
+		return err
+	}
+
+	// Get the pwd
+	pwd, err := os.Getwd()
+	if err != nil {
+		log.Fatalf("Error getting wd: %s", err)
+	}
+
+	_, err = getter.Detect(rs.Raw, pwd, []getter.Detector{})
+	return err
+}