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authorDaniel Baumann <daniel@debian.org>2024-10-18 20:33:49 +0200
committerDaniel Baumann <daniel@debian.org>2024-12-12 23:57:56 +0100
commite68b9d00a6e05b3a941f63ffb696f91e554ac5ec (patch)
tree97775d6c13b0f416af55314eb6a89ef792474615 /modules/util/remove.go
parentInitial commit. (diff)
downloadforgejo-e68b9d00a6e05b3a941f63ffb696f91e554ac5ec.tar.xz
forgejo-e68b9d00a6e05b3a941f63ffb696f91e554ac5ec.zip
Adding upstream version 9.0.3.
Signed-off-by: Daniel Baumann <daniel@debian.org>
Diffstat (limited to '')
-rw-r--r--modules/util/remove.go104
1 files changed, 104 insertions, 0 deletions
diff --git a/modules/util/remove.go b/modules/util/remove.go
new file mode 100644
index 0000000..d1e38fa
--- /dev/null
+++ b/modules/util/remove.go
@@ -0,0 +1,104 @@
+// 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
+}