forgejo-federation/modules/git/git.go
zeripath 60c5339042 Graceful: Cancel Process on monitor pages & HammerTime (#9213)
* Graceful: Create callbacks to with contexts

* Graceful: Say when Gitea is completely finished

* Graceful: Git and Process within HammerTime

Force all git commands to terminate at HammerTime
Force all process commands to terminate at HammerTime
Move almost all git processes to run as git Commands

* Graceful: Always Hammer after Shutdown

* ProcessManager: Add cancel functionality

* Fix tests

* Make sure that process.Manager.Kill() cancels

* Make threadsafe access to Processes and remove own unused Kill

* Remove cmd from the process manager as it is no longer used

* the default context is the correct context

* get rid of double till
2019-11-30 16:40:22 +02:00

159 lines
4.8 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"
"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() error {
// Git requires setting user.name and user.email in order to commit changes.
for configKey, defaultValue := range map[string]string{"user.name": "Gitea", "user.email": "gitea@fake.local"} {
if stdout, stderr, err := process.GetManager().Exec("git.Init(get setting)", GitExecutable, "config", "--get", configKey); err != nil || strings.TrimSpace(stdout) == "" {
// ExitError indicates this config is not set
if _, ok := err.(*exec.ExitError); ok || strings.TrimSpace(stdout) == "" {
if _, stderr, gerr := process.GetManager().Exec("git.Init(set "+configKey+")", "git", "config", "--global", configKey, defaultValue); gerr != nil {
return fmt.Errorf("Failed to set git %s(%s): %s", configKey, gerr, stderr)
}
} else {
return fmt.Errorf("Failed to get git %s(%s): %s", configKey, err, stderr)
}
}
}
// Set git some configurations.
if _, stderr, err := process.GetManager().Exec("git.Init(git config --global core.quotepath false)",
GitExecutable, "config", "--global", "core.quotepath", "false"); err != nil {
return fmt.Errorf("Failed to execute 'git config --global core.quotepath false': %s", stderr)
}
if version.Compare(gitVersion, "2.18", ">=") {
if _, stderr, err := process.GetManager().Exec("git.Init(git config --global core.commitGraph true)",
GitExecutable, "config", "--global", "core.commitGraph", "true"); err != nil {
return fmt.Errorf("Failed to execute 'git config --global core.commitGraph true': %s", stderr)
}
if _, stderr, err := process.GetManager().Exec("git.Init(git config --global gc.writeCommitGraph true)",
GitExecutable, "config", "--global", "gc.writeCommitGraph", "true"); err != nil {
return fmt.Errorf("Failed to execute 'git config --global gc.writeCommitGraph true': %s", stderr)
}
}
if runtime.GOOS == "windows" {
if _, stderr, err := process.GetManager().Exec("git.Init(git config --global core.longpaths true)",
GitExecutable, "config", "--global", "core.longpaths", "true"); err != nil {
return fmt.Errorf("Failed to execute 'git config --global core.longpaths true': %s", stderr)
}
}
return nil
}
// Fsck verifies the connectivity and validity of the objects in the database
func Fsck(repoPath string, timeout time.Duration, args ...string) error {
// Make sure timeout makes sense.
if timeout <= 0 {
timeout = -1
}
_, err := NewCommand("fsck").AddArguments(args...).RunInDirTimeout(timeout, repoPath)
return err
}