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