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|
package main
import (
"flag"
"fmt"
"io"
"io/fs"
"net/url"
"os"
"path/filepath"
"strings"
"time"
)
func mv(src, dst string) error {
if err := os.Rename(src, dst); err == nil {
return nil
}
src = filepath.Clean(src)
if err := filepath.WalkDir(src, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
relPath := strings.TrimPrefix(path, src)
dstPath := filepath.Join(dst, relPath)
switch d.Type() {
case fs.ModeDir:
stat, err := d.Info()
if err != nil {
return err
}
return os.Mkdir(dstPath, stat.Mode().Perm())
case fs.ModeSymlink:
linkTarget, err := os.Readlink(path)
if err != nil {
return err
}
return os.Symlink(linkTarget, dstPath)
case 0:
srcF, err := os.Open(path)
if err != nil {
return err
}
defer srcF.Close()
stat, err := srcF.Stat()
if err != nil {
return err
}
dstF, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE, stat.Mode().Perm())
if err != nil {
return err
}
defer dstF.Close()
if _, err := io.Copy(dstF, srcF); err != nil {
return err
}
if err := dstF.Close(); err != nil {
return err
}
return nil
default:
return fmt.Errorf("unknown file type %s", d.Type())
}
}); err != nil {
os.RemoveAll(dst)
return err
}
return os.RemoveAll(src)
}
func trashFile(fileName, trash, now string) error {
absPath, err := filepath.Abs(fileName)
if err != nil {
return fmt.Errorf("%s: find absolute path: %s", fileName, err)
}
info, err := os.CreateTemp(trash+"/info", filepath.Base(fileName)+"."+now+".*.trashinfo")
if err != nil {
return fmt.Errorf("%s: create trashinfo: %s", fileName, err)
}
escapedPath := strings.Split(absPath, "/")
for i, pathSegment := range escapedPath {
escapedPath[i] = url.QueryEscape(pathSegment)
}
_, err = fmt.Fprintf(info, `[Trash Info]
Path=%s
DeletionDate=%s
`,
strings.Join(escapedPath, "/"),
now)
if err != nil {
info.Close()
os.Remove(info.Name())
return fmt.Errorf("%s: write trashinfo: %s", fileName, err)
}
if err := info.Close(); err != nil {
os.Remove(info.Name())
return fmt.Errorf("%s: write trashinfo: %s", fileName, err)
}
if err := mv(fileName, trash+"/files/"+strings.TrimSuffix(filepath.Base(info.Name()), ".trashinfo")); err != nil {
os.Remove(info.Name())
return fmt.Errorf("%s: %s", fileName, err)
}
return nil
}
func main() {
flag.Usage = func() {
fmt.Fprintln(os.Stderr, "Usage: trash [FILE]...")
flag.PrintDefaults()
}
flag.Parse()
if len(flag.Args()) == 0 {
fmt.Fprintln(os.Stderr, "trash: missing operand")
flag.Usage()
os.Exit(1)
}
trash := os.Getenv("HOME") + "/.local/share/Trash"
if xdgDataHome := os.Getenv("XDG_DATA_HOME"); xdgDataHome != "" {
trash = xdgDataHome + "/Trash"
}
if err := os.MkdirAll(trash+"/files", 0755); err != nil {
fmt.Fprintln(os.Stderr, "trash:", err)
os.Exit(1)
}
if err := os.MkdirAll(trash+"/info", 0755); err != nil {
fmt.Fprintln(os.Stderr, "trash:", err)
os.Exit(1)
}
now := time.Now().Format("2006-01-02T15:04:05")
success := true
for _, fileName := range flag.Args() {
if err := trashFile(fileName, trash, now); err != nil {
fmt.Fprintln(os.Stderr, "trash:", err)
success = false
}
}
if !success {
os.Exit(1)
}
}
|
