gitea/modules/util/remove.go
zeripath 74bd9691c6
Re-attempt to delete temporary upload if the file is locked by another process (#12447)
Replace all calls to os.Remove/os.RemoveAll by retrying util.Remove/util.RemoveAll and remove circular dependencies from util.

Fix #12339

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: silverwind <me@silverwind.io>
2020-08-11 21:05:34 +01:00

58 lines
1.3 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package util
import (
"os"
"syscall"
"time"
)
// Remove removes the named file or (empty) directory with at most 5 attempts.
func Remove(name string) error {
var err error
for i := 0; i < 5; i++ {
err = os.Remove(name)
if err == nil {
break
}
unwrapped := err.(*os.PathError).Err
if unwrapped == syscall.EBUSY || unwrapped == syscall.ENOTEMPTY || unwrapped == syscall.EPERM || unwrapped == syscall.EMFILE || unwrapped == syscall.ENFILE {
// try again
<-time.After(100 * time.Millisecond)
continue
}
if unwrapped == syscall.ENOENT {
// it's already gone
return nil
}
}
return err
}
// RemoveAll removes the named file or (empty) directory with at most 5 attempts.Remove
func RemoveAll(name string) error {
var err error
for i := 0; i < 5; i++ {
err = os.RemoveAll(name)
if err == nil {
break
}
unwrapped := err.(*os.PathError).Err
if unwrapped == syscall.EBUSY || unwrapped == syscall.ENOTEMPTY || unwrapped == syscall.EPERM || unwrapped == syscall.EMFILE || unwrapped == syscall.ENFILE {
// try again
<-time.After(100 * time.Millisecond)
continue
}
if unwrapped == syscall.ENOENT {
// it's already gone
return nil
}
}
return err
}