Andy Dixon
8d9344cfef
On a headless Linux or BSD system (no DISPLAY or WAYLAND_DISPLAY) nothing empties the freedesktop trash, so trashing never freed space. There, d now deletes permanently after an explicit confirmation, checking owner and type against the scan and removing through an os.Root on the parent so a swapped symlink cannot redirect it. o shows the folder in the map instead of launching a file manager. Desktop sessions, macOS and Windows are unchanged.
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package platform
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"syscall"
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)
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// TrashName is the user-facing name of the trash.
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const TrashName = "Trash"
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// Reveal selects the item in Finder.
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func Reveal(path string) error {
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if err := checkAbs(path); err != nil {
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return err
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}
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return startDetached("open", "-R", path)
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}
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// Trash moves path into ~/.Trash (same volume) or the volume's
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// .Trashes/<uid> directory. It never copies and never deletes.
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func Trash(path string, want Expect) error {
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if err := checkAbs(path); err != nil {
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return err
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}
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home, err := os.UserHomeDir()
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if err != nil {
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return err
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}
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dirs := []string{filepath.Join(home, ".Trash")}
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if vol := volumeOf(path); vol != "" {
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dirs = append(dirs, filepath.Join(vol, ".Trashes", fmt.Sprint(os.Getuid())))
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}
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base := filepath.Base(path)
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for vi, dir := range dirs {
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if err := os.MkdirAll(filepath.Dir(dir), 0o700); err != nil {
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continue
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}
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// A volume trash is on a shared filesystem: another user could plant
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// a symlink or an open directory there, so insist on a private one.
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if err := ensurePrivateDir(dir, vi > 0); err != nil {
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continue
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}
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for i := 1; i < 10000; i++ {
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name := base
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if i > 1 {
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name = fmt.Sprintf("%s %d", base, i)
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}
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dst := filepath.Join(dir, name)
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if _, err := os.Lstat(dst); err == nil {
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continue
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}
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err := renameChecked(path, dst, want)
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if errors.Is(err, syscall.EXDEV) {
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break // try the next trash location
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}
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return err
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}
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}
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return errors.New("trash: item is on a volume without a usable trash")
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}
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func volumeOf(path string) string {
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const prefix = "/Volumes/"
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if len(path) > len(prefix) && path[:len(prefix)] == prefix {
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rest := path[len(prefix):]
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for i := 0; i < len(rest); i++ {
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if rest[i] == '/' {
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return prefix + rest[:i]
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}
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}
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return path
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}
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return ""
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}
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// Headless is always false: macOS has Finder and the Trash even without
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// $DISPLAY (which it does not use).
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func Headless() bool { return false }
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