vendor update for E2E framework

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/sigs.k8s.io/kustomize/pkg/fs/fakefs.go

@@ -0,0 +1,185 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package fs
+
+import (
+	"fmt"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"sigs.k8s.io/kustomize/pkg/constants"
+)
+
+var _ FileSystem = &fakeFs{}
+
+// fakeFs implements FileSystem using a fake in-memory filesystem.
+type fakeFs struct {
+	m map[string]*FakeFile
+}
+
+// MakeFakeFS returns an instance of fakeFs with no files in it.
+func MakeFakeFS() *fakeFs {
+	result := &fakeFs{m: map[string]*FakeFile{}}
+	result.Mkdir("/")
+	return result
+}
+
+// kustomizationContent is used in tests.
+const kustomizationContent = `apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namePrefix: some-prefix
+nameSuffix: some-suffix
+# Labels to add to all objects and selectors.
+# These labels would also be used to form the selector for apply --prune
+# Named differently than “labels” to avoid confusion with metadata for this object
+commonLabels:
+  app: helloworld
+commonAnnotations:
+  note: This is an example annotation
+resources: []
+#- service.yaml
+#- ../some-dir/
+# There could also be configmaps in Base, which would make these overlays
+configMapGenerator: []
+# There could be secrets in Base, if just using a fork/rebase workflow
+secretGenerator: []
+`
+
+// Create assures a fake file appears in the in-memory file system.
+func (fs *fakeFs) Create(name string) (File, error) {
+	f := &FakeFile{}
+	f.open = true
+	fs.m[name] = f
+	return fs.m[name], nil
+}
+
+// Mkdir assures a fake directory appears in the in-memory file system.
+func (fs *fakeFs) Mkdir(name string) error {
+	fs.m[name] = makeDir(name)
+	return nil
+}
+
+// MkdirAll delegates to Mkdir
+func (fs *fakeFs) MkdirAll(name string) error {
+	return fs.Mkdir(name)
+}
+
+// RemoveAll presumably does rm -r on a path.
+// There's no error.
+func (fs *fakeFs) RemoveAll(name string) error {
+	var toRemove []string
+	for k := range fs.m {
+		if strings.HasPrefix(k, name) {
+			toRemove = append(toRemove, k)
+		}
+	}
+	for _, k := range toRemove {
+		delete(fs.m, k)
+	}
+	return nil
+}
+
+// Open returns a fake file in the open state.
+func (fs *fakeFs) Open(name string) (File, error) {
+	if _, found := fs.m[name]; !found {
+		return nil, fmt.Errorf("file %q cannot be opened", name)
+	}
+	return fs.m[name], nil
+}
+
+// CleanedAbs cannot fail.
+func (fs *fakeFs) CleanedAbs(path string) (ConfirmedDir, string, error) {
+	if fs.IsDir(path) {
+		return ConfirmedDir(path), "", nil
+	}
+	d := filepath.Dir(path)
+	if d == path {
+		return ConfirmedDir(d), "", nil
+	}
+	return ConfirmedDir(d), filepath.Base(path), nil
+}
+
+// Exists returns true if file is known.
+func (fs *fakeFs) Exists(name string) bool {
+	_, found := fs.m[name]
+	return found
+}
+
+// Glob returns the list of matching files
+func (fs *fakeFs) Glob(pattern string) ([]string, error) {
+	var result []string
+	for p := range fs.m {
+		if fs.pathMatch(p, pattern) {
+			result = append(result, p)
+		}
+	}
+	sort.Strings(result)
+	return result, nil
+}
+
+// IsDir returns true if the file exists and is a directory.
+func (fs *fakeFs) IsDir(name string) bool {
+	f, found := fs.m[name]
+	if found && f.dir {
+		return true
+	}
+	if !strings.HasSuffix(name, "/") {
+		name = name + "/"
+	}
+	for k := range fs.m {
+		if strings.HasPrefix(k, name) {
+			return true
+		}
+	}
+	return false
+}
+
+// ReadFile always returns an empty bytes and error depending on content of m.
+func (fs *fakeFs) ReadFile(name string) ([]byte, error) {
+	if ff, found := fs.m[name]; found {
+		return ff.content, nil
+	}
+	return nil, fmt.Errorf("cannot read file %q", name)
+}
+
+func (fs *fakeFs) ReadTestKustomization() ([]byte, error) {
+	return fs.ReadFile(constants.KustomizationFileNames[0])
+}
+
+// WriteFile always succeeds and does nothing.
+func (fs *fakeFs) WriteFile(name string, c []byte) error {
+	ff := &FakeFile{}
+	ff.Write(c)
+	fs.m[name] = ff
+	return nil
+}
+
+// WriteTestKustomization writes a standard test file.
+func (fs *fakeFs) WriteTestKustomization() {
+	fs.WriteTestKustomizationWith([]byte(kustomizationContent))
+}
+
+// WriteTestKustomizationWith writes a standard test file.
+func (fs *fakeFs) WriteTestKustomizationWith(bytes []byte) {
+	fs.WriteFile(constants.KustomizationFileNames[0], bytes)
+}
+
+func (fs *fakeFs) pathMatch(path, pattern string) bool {
+	match, _ := filepath.Match(pattern, path)
+	return match
+}