ca55e49cc0
Backport #16435 Due to external locking on Windows it is possible for an os.Rename to fail if the files or directories are being used elsewhere. This PR simply suggests retrying the rename again similar to how we handle the os.Remove problems. Fix #16427 Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: techknowlogick <techknowlogick@gitea.io>
84 lines
2 KiB
Go
84 lines
2 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util
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import (
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"os"
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"syscall"
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"time"
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)
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// Remove removes the named file or (empty) directory with at most 5 attempts.
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func Remove(name string) error {
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var err error
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for i := 0; i < 5; i++ {
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err = os.Remove(name)
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if err == nil {
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break
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}
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unwrapped := err.(*os.PathError).Err
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if unwrapped == syscall.EBUSY || unwrapped == syscall.ENOTEMPTY || unwrapped == syscall.EPERM || unwrapped == syscall.EMFILE || unwrapped == syscall.ENFILE {
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// try again
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<-time.After(100 * time.Millisecond)
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continue
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}
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if unwrapped == syscall.ENOENT {
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// it's already gone
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return nil
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}
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}
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return err
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}
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// RemoveAll removes the named file or (empty) directory with at most 5 attempts.
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func RemoveAll(name string) error {
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var err error
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for i := 0; i < 5; i++ {
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err = os.RemoveAll(name)
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if err == nil {
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break
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}
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unwrapped := err.(*os.PathError).Err
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if unwrapped == syscall.EBUSY || unwrapped == syscall.ENOTEMPTY || unwrapped == syscall.EPERM || unwrapped == syscall.EMFILE || unwrapped == syscall.ENFILE {
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// try again
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<-time.After(100 * time.Millisecond)
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continue
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}
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if unwrapped == syscall.ENOENT {
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// it's already gone
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return nil
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}
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}
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return err
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}
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// Rename renames (moves) oldpath to newpath with at most 5 attempts.
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func Rename(oldpath, newpath string) error {
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var err error
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for i := 0; i < 5; i++ {
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err = os.Rename(oldpath, newpath)
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if err == nil {
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break
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}
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unwrapped := err.(*os.PathError).Err
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if unwrapped == syscall.EBUSY || unwrapped == syscall.ENOTEMPTY || unwrapped == syscall.EPERM || unwrapped == syscall.EMFILE || unwrapped == syscall.ENFILE {
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// try again
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<-time.After(100 * time.Millisecond)
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continue
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}
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if i == 0 && os.IsNotExist(err) {
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return err
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}
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if unwrapped == syscall.ENOENT {
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// it's already gone
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return nil
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}
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}
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return err
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}
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