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https://gitea.com/gitea/tea.git
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bircni
2b218a5bae
Part 1/5 of the tea 1.0 rewrite. **Stack** (split from #1121; each PR targets `main` and builds, tests and lints on its own — the shipped CLI only changes in part 5): 1. #1122 Toolchain and foundation packages ← this PR 2. #1123 Credentials and Git 3. #1124 Terminal 4. #1125 Services 5. #1126 CLI wiring, docs, removal of the old tree ## Changes - **build:** require Go 1.27; bump gofumpt and golangci-lint to releases that can read Go 1.27 export data (own commit). - `internal/clierr`: typed errors and executable exit codes. - `internal/version`: build version and tags. - `internal/filelock`: moved unchanged from `modules/filelock`. - `internal/aliases`: user-defined command aliases. - `internal/transport`: the HTTP client the Gitea SDK runs on (part 4): token, Sudo and SSH-signature auth, retries for safe reads, connect/TLS/response-header timeouts, typed API errors that keep Gitea's message, and a redacted request log for `--debug`; plus raw requests for `tea api`, signed downloads that follow object-storage redirects, and log streaming. - `internal/settings`: split `config.yml` / `hosts.yml` with locked transactions, plus remote URL parsing. Nothing imports these packages yet. Note: `flake.nix` now asks for `go_1_27`; the pinned nixpkgs in `flake.lock` predates Go 1.27 and still needs a `nix flake update nixpkgs`. Reviewed-on: https://gitea.com/gitea/tea/pulls/1122 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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