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| package filepath_test |
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| import ( |
| "fmt" |
| "io/fs" |
| "os" |
| "path/filepath" |
| ) |
|
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| func prepareTestDirTree(tree string) (string, error) { |
| tmpDir, err := os.MkdirTemp("", "") |
| if err != nil { |
| return "", fmt.Errorf("error creating temp directory: %v\n", err) |
| } |
|
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| err = os.MkdirAll(filepath.Join(tmpDir, tree), 0755) |
| if err != nil { |
| os.RemoveAll(tmpDir) |
| return "", err |
| } |
|
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| return tmpDir, nil |
| } |
|
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| func ExampleWalk() { |
| tmpDir, err := prepareTestDirTree("dir/to/walk/skip") |
| if err != nil { |
| fmt.Printf("unable to create test dir tree: %v\n", err) |
| return |
| } |
| defer os.RemoveAll(tmpDir) |
| os.Chdir(tmpDir) |
|
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| subDirToSkip := "skip" |
|
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| fmt.Println("On Unix:") |
| err = filepath.Walk(".", func(path string, info fs.FileInfo, err error) error { |
| if err != nil { |
| fmt.Printf("prevent panic by handling failure accessing a path %q: %v\n", path, err) |
| return err |
| } |
| if info.IsDir() && info.Name() == subDirToSkip { |
| fmt.Printf("skipping a dir without errors: %+v \n", info.Name()) |
| return filepath.SkipDir |
| } |
| fmt.Printf("visited file or dir: %q\n", path) |
| return nil |
| }) |
| if err != nil { |
| fmt.Printf("error walking the path %q: %v\n", tmpDir, err) |
| return |
| } |
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| } |
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|
