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174 lines
4.6 KiB
174 lines
4.6 KiB
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2017 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package git
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import (
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"context"
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"fmt"
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"os/exec"
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"runtime"
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"strings"
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"time"
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"code.gitea.io/gitea/modules/process"
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"github.com/mcuadros/go-version"
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)
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// Version return this package's current version
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func Version() string {
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return "0.4.2"
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}
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var (
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// Debug enables verbose logging on everything.
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// This should be false in case Gogs starts in SSH mode.
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Debug = false
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// Prefix the log prefix
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Prefix = "[git-module] "
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// GitVersionRequired is the minimum Git version required
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GitVersionRequired = "1.7.2"
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// GitExecutable is the command name of git
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// Could be updated to an absolute path while initialization
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GitExecutable = "git"
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// DefaultContext is the default context to run git commands in
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DefaultContext = context.Background()
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gitVersion string
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)
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func log(format string, args ...interface{}) {
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if !Debug {
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return
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}
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fmt.Print(Prefix)
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if len(args) == 0 {
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fmt.Println(format)
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} else {
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fmt.Printf(format+"\n", args...)
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}
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}
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// BinVersion returns current Git version from shell.
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func BinVersion() (string, error) {
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if len(gitVersion) > 0 {
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return gitVersion, nil
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}
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stdout, err := NewCommand("version").Run()
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if err != nil {
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return "", err
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}
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fields := strings.Fields(stdout)
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if len(fields) < 3 {
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return "", fmt.Errorf("not enough output: %s", stdout)
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}
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// Handle special case on Windows.
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i := strings.Index(fields[2], "windows")
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if i >= 1 {
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gitVersion = fields[2][:i-1]
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return gitVersion, nil
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}
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gitVersion = fields[2]
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return gitVersion, nil
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}
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// SetExecutablePath changes the path of git executable and checks the file permission and version.
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func SetExecutablePath(path string) error {
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// If path is empty, we use the default value of GitExecutable "git" to search for the location of git.
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if path != "" {
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GitExecutable = path
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}
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absPath, err := exec.LookPath(GitExecutable)
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if err != nil {
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return fmt.Errorf("Git not found: %v", err)
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}
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GitExecutable = absPath
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gitVersion, err := BinVersion()
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if err != nil {
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return fmt.Errorf("Git version missing: %v", err)
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}
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if version.Compare(gitVersion, GitVersionRequired, "<") {
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return fmt.Errorf("Git version not supported. Requires version > %v", GitVersionRequired)
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}
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return nil
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}
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// Init initializes git module
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func Init(ctx context.Context) error {
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DefaultContext = ctx
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// Git requires setting user.name and user.email in order to commit changes - if they're not set just add some defaults
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for configKey, defaultValue := range map[string]string{"user.name": "Gitea", "user.email": "gitea@fake.local"} {
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if err := checkAndSetConfig(configKey, defaultValue, false); err != nil {
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return err
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}
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}
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// Set git some configurations - these must be set to these values for gitea to work correctly
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if err := checkAndSetConfig("core.quotePath", "false", true); err != nil {
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return err
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}
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if version.Compare(gitVersion, "2.18", ">=") {
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if err := checkAndSetConfig("core.commitGraph", "true", true); err != nil {
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return err
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}
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if err := checkAndSetConfig("gc.writeCommitGraph", "true", true); err != nil {
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return err
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}
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}
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if runtime.GOOS == "windows" {
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if err := checkAndSetConfig("core.longpaths", "true", true); err != nil {
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return err
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}
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}
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return nil
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}
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func checkAndSetConfig(key, defaultValue string, forceToDefault bool) error {
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stdout, stderr, err := process.GetManager().Exec("git.Init(get setting)", GitExecutable, "config", "--get", key)
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if err != nil {
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perr, ok := err.(*process.Error)
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if !ok {
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return fmt.Errorf("Failed to get git %s(%v) errType %T: %s", key, err, err, stderr)
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}
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eerr, ok := perr.Err.(*exec.ExitError)
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if !ok || eerr.ExitCode() != 1 {
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return fmt.Errorf("Failed to get git %s(%v) errType %T: %s", key, err, err, stderr)
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}
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}
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currValue := strings.TrimSpace(stdout)
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if currValue == defaultValue || (!forceToDefault && len(currValue) > 0) {
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return nil
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}
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if _, stderr, err = process.GetManager().Exec(fmt.Sprintf("git.Init(set %s)", key), "git", "config", "--global", key, defaultValue); err != nil {
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return fmt.Errorf("Failed to set git %s(%s): %s", key, err, stderr)
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}
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return nil
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}
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// Fsck verifies the connectivity and validity of the objects in the database
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func Fsck(ctx context.Context, repoPath string, timeout time.Duration, args ...string) error {
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// Make sure timeout makes sense.
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if timeout <= 0 {
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timeout = -1
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}
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_, err := NewCommandContext(ctx, "fsck").AddArguments(args...).RunInDirTimeout(timeout, repoPath)
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return err
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}
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