forked from Shiloh/githaven
244 lines
6.8 KiB
Go
244 lines
6.8 KiB
Go
// 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"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
|
|
"github.com/hashicorp/go-version"
|
|
)
|
|
|
|
var (
|
|
// 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
|
|
// will be overwritten by Init with HammerContext
|
|
DefaultContext = context.Background()
|
|
|
|
gitVersion *version.Version
|
|
|
|
// will be checked on Init
|
|
goVersionLessThan115 = true
|
|
)
|
|
|
|
// LocalVersion returns current Git version from shell.
|
|
func LocalVersion() (*version.Version, error) {
|
|
if err := LoadGitVersion(); err != nil {
|
|
return nil, err
|
|
}
|
|
return gitVersion, nil
|
|
}
|
|
|
|
// LoadGitVersion returns current Git version from shell.
|
|
func LoadGitVersion() error {
|
|
// doesn't need RWMutex because its exec by Init()
|
|
if gitVersion != nil {
|
|
return 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)
|
|
}
|
|
|
|
var versionString string
|
|
|
|
// Handle special case on Windows.
|
|
i := strings.Index(fields[2], "windows")
|
|
if i >= 1 {
|
|
versionString = fields[2][:i-1]
|
|
} else {
|
|
versionString = fields[2]
|
|
}
|
|
|
|
gitVersion, err = version.NewVersion(versionString)
|
|
return err
|
|
}
|
|
|
|
// 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
|
|
|
|
err = LoadGitVersion()
|
|
if err != nil {
|
|
return fmt.Errorf("Git version missing: %v", err)
|
|
}
|
|
|
|
versionRequired, err := version.NewVersion(GitVersionRequired)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if gitVersion.LessThan(versionRequired) {
|
|
return fmt.Errorf("Git version not supported. Requires version > %v", GitVersionRequired)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VersionInfo returns git version information
|
|
func VersionInfo() string {
|
|
var format = "Git Version: %s"
|
|
var args = []interface{}{gitVersion.Original()}
|
|
// Since git wire protocol has been released from git v2.18
|
|
if setting.Git.EnableAutoGitWireProtocol && CheckGitVersionAtLeast("2.18") == nil {
|
|
format += ", Wire Protocol %s Enabled"
|
|
args = append(args, "Version 2") // for focus color
|
|
}
|
|
|
|
return fmt.Sprintf(format, args...)
|
|
}
|
|
|
|
// Init initializes git module
|
|
func Init(ctx context.Context) error {
|
|
DefaultContext = ctx
|
|
|
|
defaultCommandExecutionTimeout = time.Duration(setting.Git.Timeout.Default) * time.Second
|
|
|
|
if err := SetExecutablePath(setting.Git.Path); err != nil {
|
|
return err
|
|
}
|
|
|
|
// force cleanup args
|
|
GlobalCommandArgs = []string{}
|
|
|
|
if CheckGitVersionAtLeast("2.9") == nil {
|
|
// Explicitly disable credential helper, otherwise Git credentials might leak
|
|
GlobalCommandArgs = append(GlobalCommandArgs, "-c", "credential.helper=")
|
|
}
|
|
|
|
// Since git wire protocol has been released from git v2.18
|
|
if setting.Git.EnableAutoGitWireProtocol && CheckGitVersionAtLeast("2.18") == nil {
|
|
GlobalCommandArgs = append(GlobalCommandArgs, "-c", "protocol.version=2")
|
|
}
|
|
|
|
// Save current git version on init to gitVersion otherwise it would require an RWMutex
|
|
if err := LoadGitVersion(); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Save if the go version used to compile gitea is greater or equal 1.15
|
|
runtimeVersion, err := version.NewVersion(strings.TrimPrefix(runtime.Version(), "go"))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
version115, _ := version.NewVersion("1.15")
|
|
goVersionLessThan115 = runtimeVersion.LessThan(version115)
|
|
|
|
// 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 CheckGitVersionAtLeast("2.10") == nil {
|
|
if err := checkAndSetConfig("receive.advertisePushOptions", "true", true); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if CheckGitVersionAtLeast("2.18") == nil {
|
|
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
|
|
}
|
|
|
|
// CheckGitVersionAtLeast check git version is at least the constraint version
|
|
func CheckGitVersionAtLeast(atLeast string) error {
|
|
if err := LoadGitVersion(); err != nil {
|
|
return err
|
|
}
|
|
atLeastVersion, err := version.NewVersion(atLeast)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if gitVersion.Compare(atLeastVersion) < 0 {
|
|
return fmt.Errorf("installed git binary version %s is not at least %s", gitVersion.Original(), atLeast)
|
|
}
|
|
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
|
|
}
|