mirror of git://gcc.gnu.org/git/gcc.git
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !windows,!plan9
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package filepath_test
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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func prepareTestDirTree(tree string) (string, error) {
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tmpDir, err := ioutil.TempDir("", "")
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if err != nil {
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return "", fmt.Errorf("error creating temp directory: %v\n", err)
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}
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err = os.MkdirAll(filepath.Join(tmpDir, tree), 0755)
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if err != nil {
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os.RemoveAll(tmpDir)
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return "", err
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}
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return tmpDir, nil
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}
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func ExampleWalk() {
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tmpDir, err := prepareTestDirTree("dir/to/walk/skip")
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if err != nil {
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fmt.Printf("unable to create test dir tree: %v\n", err)
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return
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}
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defer os.RemoveAll(tmpDir)
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os.Chdir(tmpDir)
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subDirToSkip := "skip"
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fmt.Println("On Unix:")
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err = filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
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if err != nil {
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fmt.Printf("prevent panic by handling failure accessing a path %q: %v\n", path, err)
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return err
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}
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if info.IsDir() && info.Name() == subDirToSkip {
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fmt.Printf("skipping a dir without errors: %+v \n", info.Name())
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return filepath.SkipDir
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}
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fmt.Printf("visited file or dir: %q\n", path)
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return nil
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})
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if err != nil {
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fmt.Printf("error walking the path %q: %v\n", tmpDir, err)
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return
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}
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// Output:
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// On Unix:
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// visited file or dir: "."
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// visited file or dir: "dir"
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// visited file or dir: "dir/to"
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// visited file or dir: "dir/to/walk"
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// skipping a dir without errors: skip
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}
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