mirror of https://github.com/go-gitea/gitea
105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package util
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"syscall"
|
|
"time"
|
|
)
|
|
|
|
const windowsSharingViolationError syscall.Errno = 32
|
|
|
|
// 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 == windowsSharingViolationError && runtime.GOOS == "windows" {
|
|
// 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.
|
|
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 == windowsSharingViolationError && runtime.GOOS == "windows" {
|
|
// try again
|
|
<-time.After(100 * time.Millisecond)
|
|
continue
|
|
}
|
|
|
|
if unwrapped == syscall.ENOENT {
|
|
// it's already gone
|
|
return nil
|
|
}
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Rename renames (moves) oldpath to newpath with at most 5 attempts.
|
|
func Rename(oldpath, newpath string) error {
|
|
var err error
|
|
for i := 0; i < 5; i++ {
|
|
err = os.Rename(oldpath, newpath)
|
|
if err == nil {
|
|
break
|
|
}
|
|
unwrapped := err.(*os.LinkError).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 == windowsSharingViolationError && runtime.GOOS == "windows" {
|
|
// try again
|
|
<-time.After(100 * time.Millisecond)
|
|
continue
|
|
}
|
|
|
|
if i == 0 && os.IsNotExist(err) {
|
|
return err
|
|
}
|
|
|
|
if unwrapped == syscall.ENOENT {
|
|
// it's already gone
|
|
return nil
|
|
}
|
|
}
|
|
return err
|
|
}
|