feat: implement configurable delete modes

chfs-ng/internal/storage/storage.go

@@ -2,12 +2,20 @@ package storage
 
 import (
 	"errors"
+	"fmt"
 	"io/fs"
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/Bios-Marcel/wastebasket"
 )
 
+type Trashable interface {
+	Trash(path string) error
+	MoveToTrash(path, trashRoot string) error
+}
+
 type Storage interface {
 	Stat(path string) (os.FileInfo, error)
 	Open(path string) (*os.File, error)
@@ -67,6 +75,33 @@ func (s Local) Remove(path string) error {
 	}
 	return os.RemoveAll(p)
 }
+
+func (s Local) Trash(path string) error {
+	p, e := s.real(path)
+	if e != nil {
+		return e
+	}
+	return wastebasket.Trash(p)
+}
+
+func (s Local) MoveToTrash(path, trashRoot string) error {
+	p, e := s.real(path)
+	if e != nil {
+		return e
+	}
+	if e = os.MkdirAll(trashRoot, 0755); e != nil {
+		return e
+	}
+	name := filepath.Base(p)
+	target := filepath.Join(trashRoot, name)
+	for i := 1; ; i++ {
+		if _, e = os.Lstat(target); os.IsNotExist(e) {
+			break
+		}
+		target = filepath.Join(trashRoot, fmt.Sprintf("%s.%d", name, i))
+	}
+	return os.Rename(p, target)
+}
 func (s Local) Rename(a, b string) error {
 	pa, e := s.real(a)
 	if e != nil {