A fork of Gitea (see branch `mj`) adding Majority Judgment Polls 𐄷 over Issues and Merge Requests. https://git.mieuxvoter.fr
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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/hashicorp/go-version"
)
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
// will be overwritten by Init with HammerContext
DefaultContext = context.Background()
gitVersion *version.Version
// will be checked on Init
goVersionLessThan115 = true
)
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...)
}
}
// 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
}
// Init initializes git module
func Init(ctx context.Context) error {
DefaultContext = ctx
// 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
}