Serge Bazanski | cc25bdf | 2018-10-25 14:02:58 +0200 | [diff] [blame] | 1 | package packr |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "strings" |
| 7 | |
| 8 | "github.com/pkg/errors" |
| 9 | ) |
| 10 | |
| 11 | type WalkFunc func(string, File) error |
| 12 | |
| 13 | // Walk will traverse the box and call the WalkFunc for each file in the box/folder. |
| 14 | func (b Box) Walk(wf WalkFunc) error { |
| 15 | if data[b.Path] == nil { |
| 16 | base, err := filepath.EvalSymlinks(filepath.Join(b.callingDir, b.Path)) |
| 17 | if err != nil { |
| 18 | return errors.WithStack(err) |
| 19 | } |
| 20 | return filepath.Walk(base, func(path string, info os.FileInfo, err error) error { |
| 21 | cleanName, err := filepath.Rel(base, path) |
| 22 | if err != nil { |
| 23 | cleanName = strings.TrimPrefix(path, base) |
| 24 | } |
| 25 | cleanName = filepath.ToSlash(filepath.Clean(cleanName)) |
| 26 | cleanName = strings.TrimPrefix(cleanName, "/") |
| 27 | cleanName = filepath.FromSlash(cleanName) |
| 28 | if info == nil || info.IsDir() { |
| 29 | return nil |
| 30 | } |
| 31 | |
| 32 | file, err := fileFor(path, cleanName) |
| 33 | if err != nil { |
| 34 | return err |
| 35 | } |
| 36 | return wf(cleanName, file) |
| 37 | }) |
| 38 | } |
| 39 | for n := range data[b.Path] { |
| 40 | f, err := b.find(n) |
| 41 | if err != nil { |
| 42 | return err |
| 43 | } |
| 44 | err = wf(n, f) |
| 45 | if err != nil { |
| 46 | return err |
| 47 | } |
| 48 | } |
| 49 | return nil |
| 50 | } |
| 51 | |
| 52 | // WalkPrefix will call box.Walk and call the WalkFunc when it finds paths that have a matching prefix |
| 53 | func (b Box) WalkPrefix(prefix string, wf WalkFunc) error { |
| 54 | opre := osPath(prefix) |
| 55 | return b.Walk(func(path string, f File) error { |
| 56 | if strings.HasPrefix(osPath(path), opre) { |
| 57 | if err := wf(path, f); err != nil { |
| 58 | return errors.WithStack(err) |
| 59 | } |
| 60 | } |
| 61 | return nil |
| 62 | }) |
| 63 | } |