mirror of
https://github.com/go-gitea/gitea
synced 2024-08-24 19:22:25 +02:00
core.protectNTFS protects NTFS from files which may be difficult to remove or interact with using the win32 api, however, it also appears to prevent such files from being entered into the git indexes - fundamentally causing breakages with PRs that affect these files. However, deliberately setting this to false may cause security issues due to the remain sparse checkout of files in the merge pipeline. The only sensible option therefore is to provide an optional setting which admins could set which would forcibly switch this off if they are affected by this issue. Fix #17092 Signed-off-by: Andrew Thornton <art27@cantab.net>
311 lines
8.9 KiB
Go
311 lines
8.9 KiB
Go
// 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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"code.gitea.io/gitea/modules/setting"
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"github.com/hashicorp/go-version"
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)
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var (
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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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// will be overwritten by Init with HammerContext
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DefaultContext = context.Background()
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gitVersion *version.Version
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// will be checked on Init
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goVersionLessThan115 = true
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// SupportProcReceive version >= 2.29.0
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SupportProcReceive bool
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)
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// LocalVersion returns current Git version from shell.
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func LocalVersion() (*version.Version, error) {
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if err := LoadGitVersion(); err != nil {
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return nil, err
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}
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return gitVersion, nil
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}
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// LoadGitVersion returns current Git version from shell.
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func LoadGitVersion() error {
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// doesn't need RWMutex because its exec by Init()
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if gitVersion != nil {
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return 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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var versionString string
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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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versionString = fields[2][:i-1]
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} else {
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versionString = fields[2]
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}
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gitVersion, err = version.NewVersion(versionString)
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return err
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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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err = LoadGitVersion()
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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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versionRequired, err := version.NewVersion(GitVersionRequired)
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if err != nil {
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return err
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}
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if gitVersion.LessThan(versionRequired) {
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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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// VersionInfo returns git version information
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func VersionInfo() string {
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var format = "Git Version: %s"
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var args = []interface{}{gitVersion.Original()}
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// Since git wire protocol has been released from git v2.18
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if setting.Git.EnableAutoGitWireProtocol && CheckGitVersionAtLeast("2.18") == nil {
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format += ", Wire Protocol %s Enabled"
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args = append(args, "Version 2") // for focus color
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}
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return fmt.Sprintf(format, args...)
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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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defaultCommandExecutionTimeout = time.Duration(setting.Git.Timeout.Default) * time.Second
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if err := SetExecutablePath(setting.Git.Path); err != nil {
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return err
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}
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// force cleanup args
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GlobalCommandArgs = []string{}
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if CheckGitVersionAtLeast("2.9") == nil {
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// Explicitly disable credential helper, otherwise Git credentials might leak
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GlobalCommandArgs = append(GlobalCommandArgs, "-c", "credential.helper=")
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}
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// Since git wire protocol has been released from git v2.18
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if setting.Git.EnableAutoGitWireProtocol && CheckGitVersionAtLeast("2.18") == nil {
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GlobalCommandArgs = append(GlobalCommandArgs, "-c", "protocol.version=2")
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}
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// Save current git version on init to gitVersion otherwise it would require an RWMutex
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if err := LoadGitVersion(); err != nil {
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return err
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}
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// Save if the go version used to compile gitea is greater or equal 1.15
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runtimeVersion, err := version.NewVersion(strings.TrimPrefix(runtime.Version(), "go"))
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if err != nil {
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return err
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}
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version115, _ := version.NewVersion("1.15")
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goVersionLessThan115 = runtimeVersion.LessThan(version115)
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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 CheckGitVersionAtLeast("2.10") == nil {
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if err := checkAndSetConfig("receive.advertisePushOptions", "true", true); err != nil {
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return err
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}
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}
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if CheckGitVersionAtLeast("2.18") == nil {
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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 CheckGitVersionAtLeast("2.29") == nil {
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// set support for AGit flow
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if err := checkAndAddConfig("receive.procReceiveRefs", "refs/for"); err != nil {
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return err
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}
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SupportProcReceive = true
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} else {
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if err := checkAndRemoveConfig("receive.procReceiveRefs", "refs/for"); err != nil {
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return err
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}
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SupportProcReceive = false
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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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if setting.Git.DisableCoreProtectNTFS {
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if err := checkAndSetConfig("core.protectntfs", "false", true); err != nil {
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return err
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}
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GlobalCommandArgs = append(GlobalCommandArgs, "-c", "core.protectntfs=false")
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}
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return nil
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}
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// CheckGitVersionAtLeast check git version is at least the constraint version
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func CheckGitVersionAtLeast(atLeast string) error {
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if err := LoadGitVersion(); err != nil {
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return err
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}
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atLeastVersion, err := version.NewVersion(atLeast)
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if err != nil {
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return err
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}
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if gitVersion.Compare(atLeastVersion) < 0 {
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return fmt.Errorf("installed git binary version %s is not at least %s", gitVersion.Original(), atLeast)
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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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func checkAndAddConfig(key, value string) error {
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_, stderr, err := process.GetManager().Exec("git.Init(get setting)", GitExecutable, "config", "--get", key, value)
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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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if eerr.ExitCode() == 1 {
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if _, stderr, err = process.GetManager().Exec(fmt.Sprintf("git.Init(set %s)", key), "git", "config", "--global", "--add", key, value); 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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}
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return nil
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}
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func checkAndRemoveConfig(key, value string) error {
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_, stderr, err := process.GetManager().Exec("git.Init(get setting)", GitExecutable, "config", "--get", key, value)
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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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if eerr.ExitCode() == 1 {
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return nil
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}
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}
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if _, stderr, err = process.GetManager().Exec(fmt.Sprintf("git.Init(set %s)", key), "git", "config", "--global", "--unset-all", key, value); 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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