/
walk_dir.go
72 lines (62 loc) · 1.66 KB
/
walk_dir.go
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package core
import (
"io/fs"
afs "github.com/inoxlang/inox/internal/afs"
"github.com/inoxlang/inox/internal/utils"
)
type StatDirEntry struct {
info fs.FileInfo
}
func NewStatDirEntry(info fs.FileInfo) *StatDirEntry {
return &StatDirEntry{info}
}
func (d *StatDirEntry) Name() string { return d.info.Name() }
func (d *StatDirEntry) IsDir() bool { return d.info.IsDir() }
func (d *StatDirEntry) Type() fs.FileMode { return d.info.Mode().Type() }
func (d *StatDirEntry) Info() (fs.FileInfo, error) { return d.info, nil }
// /adapted from stdlib path/filepath/path.go
func WalkDirLow(fls afs.Filesystem, root string, fn fs.WalkDirFunc) error {
info, err := fls.Lstat(root)
if err != nil {
err = fn(root, nil, err)
} else {
err = _walkDir(fls, root, &StatDirEntry{info}, fn)
}
if err == fs.SkipDir || err == fs.SkipAll {
return nil
}
return err
}
func _walkDir(fls afs.Filesystem, path string, d fs.DirEntry, walkDirFn fs.WalkDirFunc) error {
if err := walkDirFn(path, d, nil); err != nil || !d.IsDir() {
if err == fs.SkipDir && d.IsDir() {
// Successfully skipped directory.
err = nil
}
return err
}
dirs, err := fls.ReadDir(path)
if err != nil {
// Second call, to report ReadDir error.
err = walkDirFn(path, d, err)
if err != nil {
if err == fs.SkipDir && d.IsDir() {
err = nil
}
return err
}
}
entries := utils.MapSlice(dirs, func(i fs.FileInfo) fs.DirEntry {
return &StatDirEntry{i}
})
for _, d1 := range entries {
path1 := fls.Join(path, d1.Name())
if err := _walkDir(fls, path1, d1, walkDirFn); err != nil {
if err == fs.SkipDir {
break
}
return err
}
}
return nil
}