mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-06-11 00:52:55 +00:00
106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fs
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import (
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"fmt"
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"path/filepath"
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"sort"
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)
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var _ FileSystem = &FakeFS{}
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// FakeFS implements FileSystem using a fake in-memory filesystem.
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type FakeFS struct {
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m map[string]*FakeFile
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}
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// MakeFakeFS returns an instance of FakeFS with no files in it.
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func MakeFakeFS() *FakeFS {
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return &FakeFS{m: map[string]*FakeFile{}}
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}
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// Create assures a fake file appears in the in-memory file system.
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func (fs *FakeFS) Create(name string) (File, error) {
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f := &FakeFile{}
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f.open = true
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fs.m[name] = f
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return fs.m[name], nil
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}
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// Mkdir assures a fake directory appears in the in-memory file system.
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func (fs *FakeFS) Mkdir(name string) error {
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fs.m[name] = makeDir(name)
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return nil
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}
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// Open returns a fake file in the open state.
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func (fs *FakeFS) Open(name string) (File, error) {
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if _, found := fs.m[name]; !found {
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return nil, fmt.Errorf("file %q cannot be opened", name)
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}
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return fs.m[name], nil
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}
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// Exists returns true if file is known.
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func (fs *FakeFS) Exists(name string) bool {
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_, found := fs.m[name]
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return found
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}
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// Glob returns the list of matching files
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func (fs *FakeFS) Glob(pattern string) ([]string, error) {
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var result []string
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for p := range fs.m {
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if fs.pathMatch(p, pattern) {
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result = append(result, p)
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}
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}
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sort.Strings(result)
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return result, nil
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}
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// IsDir returns true if the file exists and is a directory.
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func (fs *FakeFS) IsDir(name string) bool {
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f, found := fs.m[name]
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if !found {
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return false
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}
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return f.dir
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}
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// ReadFile always returns an empty bytes and error depending on content of m.
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func (fs *FakeFS) ReadFile(name string) ([]byte, error) {
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if ff, found := fs.m[name]; found {
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return ff.content, nil
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}
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return nil, fmt.Errorf("cannot read file %q", name)
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}
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// WriteFile always succeeds and does nothing.
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func (fs *FakeFS) WriteFile(name string, c []byte) error {
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ff := &FakeFile{}
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ff.Write(c)
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fs.m[name] = ff
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return nil
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}
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func (fs *FakeFS) pathMatch(path, pattern string) bool {
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match, _ := filepath.Match(pattern, path)
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return match
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}
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