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author | Daniel Baumann <daniel@debian.org> | 2024-10-18 20:33:49 +0200 |
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committer | Daniel Baumann <daniel@debian.org> | 2024-12-12 23:57:56 +0100 |
commit | e68b9d00a6e05b3a941f63ffb696f91e554ac5ec (patch) | |
tree | 97775d6c13b0f416af55314eb6a89ef792474615 /modules/util/remove.go | |
parent | Initial commit. (diff) | |
download | forgejo-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.go | 104 |
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 +} |