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bircni
c5f674111a
Reverts #1126, #1125, #1124, #1123 and #1122. `go.mod` keeps the Go 1.26 line with toolchain `go1.26.9` (instead of the original `go1.26.6`) so the security fix from #1131 isn't lost. reopens #69 reopens #141 reopens #162 reopens #172 reopens #197 reopens #232 reopens #240 reopens #246 reopens #323 reopens #325 reopens #326 reopens #328 reopens #344 reopens #351 reopens #373 reopens #403 reopens #406 reopens #417 reopens #430 reopens #457 reopens #480 reopens #482 reopens #489 reopens #490 reopens #498 reopens #500 reopens #504 reopens #510 reopens #516 reopens #523 reopens #556 reopens #560 reopens #569 reopens #571 reopens #602 reopens #632 reopens #633 reopens #643 reopens #666 reopens #670 reopens #672 reopens #677 reopens #683 reopens #697 reopens #726 reopens #737 reopens #770 reopens #779 reopens #804 reopens #817 reopens #831 reopens #833 reopens #834 reopens #908 reopens #966 reopens #1023 reopens #1029 reopens #1032 reopens #1050 reopens #1052 reopens #1069 reopens #1073 reopens #1087 reopens #1091 reopens #1094 reopens #1110 reopens #1115 reopens #1116 reopens #1118 Reviewed-on: https://gitea.com/gitea/tea/pulls/1146 Reviewed-by: TheFox0x7 <95654+thefox0x7@noreply.gitea.com>
71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package filelock
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import (
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"fmt"
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"os"
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"time"
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)
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const (
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// DefaultTimeout is the default timeout for acquiring a file lock.
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DefaultTimeout = 5 * time.Second
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// FileLockPollInterval is how often to retry acquiring the file lock.
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FileLockPollInterval = 50 * time.Millisecond
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)
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// Locker provides file-based locking with timeout.
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type Locker struct {
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path string
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timeout time.Duration
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}
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// New creates a Locker for the given lock file path.
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func New(lockPath string, timeout time.Duration) *Locker {
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return &Locker{
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path: lockPath,
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timeout: timeout,
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}
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}
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// WithLock executes fn while holding the lock.
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func (l *Locker) WithLock(fn func() error) (retErr error) {
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unlock, err := l.Acquire()
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if err != nil {
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return err
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}
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defer func() {
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if unlockErr := unlock(); unlockErr != nil && retErr == nil {
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retErr = fmt.Errorf("failed to release file lock: %w", unlockErr)
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}
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}()
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return fn()
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}
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// Acquire acquires the file lock and returns an unlock function.
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// The caller must call the unlock function to release the lock.
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func (l *Locker) Acquire() (unlock func() error, err error) {
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file, err := os.OpenFile(l.path, os.O_CREATE|os.O_RDWR, 0o600)
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if err != nil {
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return nil, fmt.Errorf("failed to open lock file: %w", err)
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}
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if err := lockFile(file, l.timeout); err != nil {
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file.Close()
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return nil, fmt.Errorf("failed to acquire file lock: %w", err)
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}
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return func() error {
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unlockErr := unlockFile(file)
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closeErr := file.Close()
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if unlockErr != nil {
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return unlockErr
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}
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return closeErr
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}, nil
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}
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