78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
package beego
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import (
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"net/http"
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"os"
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"path/filepath"
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)
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// Deprecated: using pkg/, we will delete this in v2.1.0
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type FileSystem struct {
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}
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// Deprecated: using pkg/, we will delete this in v2.1.0
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func (d FileSystem) Open(name string) (http.File, error) {
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return os.Open(name)
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}
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// Walk walks the file tree rooted at root in filesystem, calling walkFn for each file or
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// directory in the tree, including root. All errors that arise visiting files
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// and directories are filtered by walkFn.
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// Deprecated: using pkg/, we will delete this in v2.1.0
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func Walk(fs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
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f, err := fs.Open(root)
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if err != nil {
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return err
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}
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info, err := f.Stat()
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if err != nil {
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err = walkFn(root, nil, err)
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} else {
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err = walk(fs, root, info, walkFn)
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}
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if err == filepath.SkipDir {
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return nil
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}
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return err
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}
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// walk recursively descends path, calling walkFn.
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func walk(fs http.FileSystem, path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
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var err error
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if !info.IsDir() {
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return walkFn(path, info, nil)
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}
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dir, err := fs.Open(path)
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if err != nil {
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if err1 := walkFn(path, info, err); err1 != nil {
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return err1
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}
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return err
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}
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defer dir.Close()
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dirs, err := dir.Readdir(-1)
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err1 := walkFn(path, info, err)
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// If err != nil, walk can't walk into this directory.
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// err1 != nil means walkFn want walk to skip this directory or stop walking.
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// Therefore, if one of err and err1 isn't nil, walk will return.
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if err != nil || err1 != nil {
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// The caller's behavior is controlled by the return value, which is decided
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// by walkFn. walkFn may ignore err and return nil.
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// If walkFn returns SkipDir, it will be handled by the caller.
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// So walk should return whatever walkFn returns.
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return err1
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}
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for _, fileInfo := range dirs {
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filename := filepath.Join(path, fileInfo.Name())
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if err = walk(fs, filename, fileInfo, walkFn); err != nil {
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if !fileInfo.IsDir() || err != filepath.SkipDir {
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return err
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}
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}
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}
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return nil
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}
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