forgejo-federation/models/repo.go
2014-03-20 11:41:24 -04:00

674 lines
17 KiB
Go

// Copyright 2014 The Gogs 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 models
import (
"container/list"
"errors"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"regexp"
"strings"
"sync"
"time"
"unicode/utf8"
"github.com/Unknwon/cae/zip"
"github.com/Unknwon/com"
"github.com/gogits/git"
"github.com/gogits/gogs/modules/base"
"github.com/gogits/gogs/modules/log"
)
// Repository represents a git repository.
type Repository struct {
Id int64
OwnerId int64 `xorm:"unique(s)"`
ForkId int64
LowerName string `xorm:"unique(s) index not null"`
Name string `xorm:"index not null"`
Description string
Website string
Private bool
NumWatchs int
NumStars int
NumForks int
Created time.Time `xorm:"created"`
Updated time.Time `xorm:"updated"`
}
// Watch is connection request for receiving repository notifycation.
type Watch struct {
Id int64
RepoId int64 `xorm:"UNIQUE(watch)"`
UserId int64 `xorm:"UNIQUE(watch)"`
}
// Watch or unwatch repository.
func WatchRepo(userId, repoId int64, watch bool) (err error) {
if watch {
_, err = orm.Insert(&Watch{RepoId: repoId, UserId: userId})
} else {
_, err = orm.Delete(&Watch{0, repoId, userId})
}
return err
}
// GetWatches returns all watches of given repository.
func GetWatches(repoId int64) ([]Watch, error) {
watches := make([]Watch, 0, 10)
err := orm.Find(&watches, &Watch{RepoId: repoId})
return watches, err
}
// IsWatching checks if user has watched given repository.
func IsWatching(userId, repoId int64) bool {
has, _ := orm.Get(&Watch{0, repoId, userId})
return has
}
var (
gitInitLocker = sync.Mutex{}
LanguageIgns, Licenses []string
)
var (
ErrRepoAlreadyExist = errors.New("Repository already exist")
ErrRepoNotExist = errors.New("Repository does not exist")
ErrRepoFileNotExist = errors.New("Target Repo file does not exist")
ErrRepoNameIllegal = errors.New("Repository name contains illegal characters")
)
func init() {
LanguageIgns = strings.Split(base.Cfg.MustValue("repository", "LANG_IGNS"), "|")
Licenses = strings.Split(base.Cfg.MustValue("repository", "LICENSES"), "|")
zip.Verbose = false
// Check if server has basic git setting.
stdout, _, err := com.ExecCmd("git", "config", "--get", "user.name")
if err != nil {
fmt.Printf("repo.init(fail to get git user.name): %v", err)
os.Exit(2)
} else if len(stdout) == 0 {
if _, _, err = com.ExecCmd("git", "config", "--global", "user.email", "gogitservice@gmail.com"); err != nil {
fmt.Printf("repo.init(fail to set git user.email): %v", err)
os.Exit(2)
} else if _, _, err = com.ExecCmd("git", "config", "--global", "user.name", "Gogs"); err != nil {
fmt.Printf("repo.init(fail to set git user.name): %v", err)
os.Exit(2)
}
}
// Initialize illegal patterns.
for i := range illegalPatterns[1:] {
pattern := ""
for j := range illegalPatterns[i+1] {
pattern += "[" + string(illegalPatterns[i+1][j]-32) + string(illegalPatterns[i+1][j]) + "]"
}
illegalPatterns[i+1] = pattern
}
}
// IsRepositoryExist returns true if the repository with given name under user has already existed.
func IsRepositoryExist(user *User, repoName string) (bool, error) {
repo := Repository{OwnerId: user.Id}
has, err := orm.Where("lower_name = ?", strings.ToLower(repoName)).Get(&repo)
if err != nil {
return has, err
}
s, err := os.Stat(RepoPath(user.Name, repoName))
if err != nil {
return false, nil // Error simply means does not exist, but we don't want to show up.
}
return s.IsDir(), nil
}
var (
// Define as all lower case!!
illegalPatterns = []string{"[.][Gg][Ii][Tt]", "user", "help", "stars", "issues", "pulls", "commits", "admin", "repo", "template"}
)
// IsLegalName returns false if name contains illegal characters.
func IsLegalName(repoName string) bool {
for _, pattern := range illegalPatterns {
has, _ := regexp.MatchString(pattern, repoName)
if has {
return false
}
}
return true
}
// CreateRepository creates a repository for given user or orgnaziation.
func CreateRepository(user *User, repoName, desc, repoLang, license string, private bool, initReadme bool) (*Repository, error) {
if !IsLegalName(repoName) {
return nil, ErrRepoNameIllegal
}
isExist, err := IsRepositoryExist(user, repoName)
if err != nil {
return nil, err
} else if isExist {
return nil, ErrRepoAlreadyExist
}
repo := &Repository{
OwnerId: user.Id,
Name: repoName,
LowerName: strings.ToLower(repoName),
Description: desc,
Private: private,
}
repoPath := RepoPath(user.Name, repoName)
if err = initRepository(repoPath, user, repo, initReadme, repoLang, license); err != nil {
return nil, err
}
session := orm.NewSession()
defer session.Close()
session.Begin()
if _, err = session.Insert(repo); err != nil {
if err2 := os.RemoveAll(repoPath); err2 != nil {
log.Error("repo.CreateRepository(repo): %v", err)
return nil, errors.New(fmt.Sprintf(
"delete repo directory %s/%s failed(1): %v", user.Name, repoName, err2))
}
session.Rollback()
return nil, err
}
access := Access{
UserName: user.Name,
RepoName: repo.Name,
Mode: AU_WRITABLE,
}
if _, err = session.Insert(&access); err != nil {
session.Rollback()
if err2 := os.RemoveAll(repoPath); err2 != nil {
log.Error("repo.CreateRepository(access): %v", err)
return nil, errors.New(fmt.Sprintf(
"delete repo directory %s/%s failed(2): %v", user.Name, repoName, err2))
}
return nil, err
}
rawSql := "UPDATE `user` SET num_repos = num_repos + 1 WHERE id = ?"
if _, err = session.Exec(rawSql, user.Id); err != nil {
session.Rollback()
if err2 := os.RemoveAll(repoPath); err2 != nil {
log.Error("repo.CreateRepository(repo count): %v", err)
return nil, errors.New(fmt.Sprintf(
"delete repo directory %s/%s failed(3): %v", user.Name, repoName, err2))
}
return nil, err
}
if err = session.Commit(); err != nil {
session.Rollback()
if err2 := os.RemoveAll(repoPath); err2 != nil {
log.Error("repo.CreateRepository(commit): %v", err)
return nil, errors.New(fmt.Sprintf(
"delete repo directory %s/%s failed(3): %v", user.Name, repoName, err2))
}
return nil, err
}
return repo, NewRepoAction(user, repo)
}
// extractGitBareZip extracts git-bare.zip to repository path.
func extractGitBareZip(repoPath string) error {
z, err := zip.Open("conf/content/git-bare.zip")
if err != nil {
fmt.Println("shi?")
return err
}
defer z.Close()
return z.ExtractTo(repoPath)
}
// initRepoCommit temporarily changes with work directory.
func initRepoCommit(tmpPath string, sig *git.Signature) error {
gitInitLocker.Lock()
defer gitInitLocker.Unlock()
// Change work directory.
curPath, err := os.Getwd()
if err != nil {
return err
} else if err = os.Chdir(tmpPath); err != nil {
return err
}
defer os.Chdir(curPath)
var stderr string
if _, stderr, err = com.ExecCmd("git", "add", "--all"); err != nil {
return err
}
log.Info("stderr(1): %s", stderr)
if _, stderr, err = com.ExecCmd("git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", "Init commit"); err != nil {
return err
}
log.Info("stderr(2): %s", stderr)
if _, stderr, err = com.ExecCmd("git", "push", "origin", "master"); err != nil {
return err
}
log.Info("stderr(3): %s", stderr)
return nil
}
// InitRepository initializes README and .gitignore if needed.
func initRepository(f string, user *User, repo *Repository, initReadme bool, repoLang, license string) error {
repoPath := RepoPath(user.Name, repo.Name)
// Create bare new repository.
if err := extractGitBareZip(repoPath); err != nil {
return err
}
// hook/post-update
pu, err := os.OpenFile(filepath.Join(repoPath, "hooks", "post-update"), os.O_CREATE|os.O_WRONLY, 0777)
if err != nil {
return err
}
defer pu.Close()
// TODO: Windows .bat
if _, err = pu.WriteString(fmt.Sprintf("#!/usr/bin/env bash\n%s update\n", appPath)); err != nil {
return err
}
// Initialize repository according to user's choice.
fileName := map[string]string{}
if initReadme {
fileName["readme"] = "README.md"
}
if repoLang != "" {
fileName["gitign"] = ".gitignore"
}
if license != "" {
fileName["license"] = "LICENSE"
}
// Clone to temprory path and do the init commit.
tmpDir := filepath.Join(os.TempDir(), fmt.Sprintf("%d", time.Now().Nanosecond()))
os.MkdirAll(tmpDir, os.ModePerm)
if _, _, err := com.ExecCmd("git", "clone", repoPath, tmpDir); err != nil {
return err
}
// README
if initReadme {
defaultReadme := repo.Name + "\n" + strings.Repeat("=",
utf8.RuneCountInString(repo.Name)) + "\n\n" + repo.Description
if err := ioutil.WriteFile(filepath.Join(tmpDir, fileName["readme"]),
[]byte(defaultReadme), 0644); err != nil {
return err
}
}
// .gitignore
if repoLang != "" {
filePath := "conf/gitignore/" + repoLang
if com.IsFile(filePath) {
if _, err := com.Copy(filePath,
filepath.Join(tmpDir, fileName["gitign"])); err != nil {
return err
}
}
}
// LICENSE
if license != "" {
filePath := "conf/license/" + license
if com.IsFile(filePath) {
if _, err := com.Copy(filePath,
filepath.Join(tmpDir, fileName["license"])); err != nil {
return err
}
}
}
if len(fileName) == 0 {
return nil
}
// Apply changes and commit.
if err := initRepoCommit(tmpDir, user.NewGitSig()); err != nil {
return err
}
return nil
}
// GetRepositoryByName returns the repository by given name under user if exists.
func GetRepositoryByName(user *User, repoName string) (*Repository, error) {
repo := &Repository{
OwnerId: user.Id,
LowerName: strings.ToLower(repoName),
}
has, err := orm.Get(repo)
if err != nil {
return nil, err
} else if !has {
return nil, ErrRepoNotExist
}
return repo, err
}
// GetRepositoryById returns the repository by given id if exists.
func GetRepositoryById(id int64) (repo *Repository, err error) {
has, err := orm.Id(id).Get(repo)
if err != nil {
return nil, err
} else if !has {
return nil, ErrRepoNotExist
}
return repo, err
}
// GetRepositories returns the list of repositories of given user.
func GetRepositories(user *User) ([]Repository, error) {
repos := make([]Repository, 0, 10)
err := orm.Desc("updated").Find(&repos, &Repository{OwnerId: user.Id})
return repos, err
}
func GetRepositoryCount(user *User) (int64, error) {
return orm.Count(&Repository{OwnerId: user.Id})
}
func StarReposiory(user *User, repoName string) error {
return nil
}
func UnStarRepository() {
}
func WatchRepository() {
}
func UnWatchRepository() {
}
func ForkRepository(reposName string, userId int64) {
}
func RepoPath(userName, repoName string) string {
return filepath.Join(UserPath(userName), repoName+".git")
}
// DeleteRepository deletes a repository for a user or orgnaztion.
func DeleteRepository(userId, repoId int64, userName string) (err error) {
repo := &Repository{Id: repoId, OwnerId: userId}
has, err := orm.Get(repo)
if err != nil {
return err
} else if !has {
return ErrRepoNotExist
}
session := orm.NewSession()
if err = session.Begin(); err != nil {
return err
}
if _, err = session.Delete(&Repository{Id: repoId}); err != nil {
session.Rollback()
return err
}
if _, err := session.Delete(&Access{UserName: userName, RepoName: repo.Name}); err != nil {
session.Rollback()
return err
}
rawSql := "UPDATE user SET num_repos = num_repos - 1 WHERE id = ?"
if base.Cfg.MustValue("database", "DB_TYPE") == "postgres" {
rawSql = "UPDATE \"user\" SET num_repos = num_repos - 1 WHERE id = ?"
}
if _, err = session.Exec(rawSql, userId); err != nil {
session.Rollback()
return err
}
if _, err = session.Delete(&Watch{RepoId: repoId}); err != nil {
session.Rollback()
return err
}
if err = session.Commit(); err != nil {
session.Rollback()
return err
}
if err = os.RemoveAll(RepoPath(userName, repo.Name)); err != nil {
// TODO: log and delete manully
log.Error("delete repo %s/%s failed: %v", userName, repo.Name, err)
return err
}
return nil
}
var (
ErrRepoFileNotLoaded = fmt.Errorf("repo file not loaded")
)
// RepoFile represents a file object in git repository.
type RepoFile struct {
*git.TreeEntry
Path string
Size int64
Repo *git.Repository
Commit *git.Commit
}
// LookupBlob returns the content of an object.
func (file *RepoFile) LookupBlob() (*git.Blob, error) {
if file.Repo == nil {
return nil, ErrRepoFileNotLoaded
}
return file.Repo.LookupBlob(file.Id)
}
// GetBranches returns all branches of given repository.
func GetBranches(userName, reposName string) ([]string, error) {
repo, err := git.OpenRepository(RepoPath(userName, reposName))
if err != nil {
return nil, err
}
refs, err := repo.AllReferences()
if err != nil {
return nil, err
}
brs := make([]string, len(refs))
for i, ref := range refs {
brs[i] = ref.Name
}
return brs, nil
}
func GetTargetFile(userName, reposName, branchName, commitId, rpath string) (*RepoFile, error) {
repo, err := git.OpenRepository(RepoPath(userName, reposName))
if err != nil {
return nil, err
}
commit, err := repo.GetCommit(branchName, commitId)
if err != nil {
return nil, err
}
parts := strings.Split(path.Clean(rpath), "/")
var entry *git.TreeEntry
tree := commit.Tree
for i, part := range parts {
if i == len(parts)-1 {
entry = tree.EntryByName(part)
if entry == nil {
return nil, ErrRepoFileNotExist
}
} else {
tree, err = repo.SubTree(tree, part)
if err != nil {
return nil, err
}
}
}
size, err := repo.ObjectSize(entry.Id)
if err != nil {
return nil, err
}
repoFile := &RepoFile{
entry,
rpath,
size,
repo,
commit,
}
return repoFile, nil
}
// GetReposFiles returns a list of file object in given directory of repository.
func GetReposFiles(userName, reposName, branchName, commitId, rpath string) ([]*RepoFile, error) {
repo, err := git.OpenRepository(RepoPath(userName, reposName))
if err != nil {
return nil, err
}
commit, err := repo.GetCommit(branchName, commitId)
if err != nil {
return nil, err
}
var repodirs []*RepoFile
var repofiles []*RepoFile
commit.Tree.Walk(func(dirname string, entry *git.TreeEntry) int {
if dirname == rpath {
// TODO: size get method shoule be improved
size, err := repo.ObjectSize(entry.Id)
if err != nil {
return 0
}
var cm = commit
var i int
for {
i = i + 1
//fmt.Println(".....", i, cm.Id(), cm.ParentCount())
if cm.ParentCount() == 0 {
break
} else if cm.ParentCount() == 1 {
pt, _ := repo.SubTree(cm.Parent(0).Tree, dirname)
if pt == nil {
break
}
pEntry := pt.EntryByName(entry.Name)
if pEntry == nil || !pEntry.Id.Equal(entry.Id) {
break
} else {
cm = cm.Parent(0)
}
} else {
var emptyCnt = 0
var sameIdcnt = 0
var lastSameCm *git.Commit
//fmt.Println(".....", cm.ParentCount())
for i := 0; i < cm.ParentCount(); i++ {
//fmt.Println("parent", i, cm.Parent(i).Id())
p := cm.Parent(i)
pt, _ := repo.SubTree(p.Tree, dirname)
var pEntry *git.TreeEntry
if pt != nil {
pEntry = pt.EntryByName(entry.Name)
}
//fmt.Println("pEntry", pEntry)
if pEntry == nil {
emptyCnt = emptyCnt + 1
if emptyCnt+sameIdcnt == cm.ParentCount() {
if lastSameCm == nil {
goto loop
} else {
cm = lastSameCm
break
}
}
} else {
//fmt.Println(i, "pEntry", pEntry.Id, "entry", entry.Id)
if !pEntry.Id.Equal(entry.Id) {
goto loop
} else {
lastSameCm = cm.Parent(i)
sameIdcnt = sameIdcnt + 1
if emptyCnt+sameIdcnt == cm.ParentCount() {
// TODO: now follow the first parent commit?
cm = lastSameCm
//fmt.Println("sameId...")
break
}
}
}
}
}
}
loop:
rp := &RepoFile{
entry,
path.Join(dirname, entry.Name),
size,
repo,
cm,
}
if entry.IsFile() {
repofiles = append(repofiles, rp)
} else if entry.IsDir() {
repodirs = append(repodirs, rp)
}
}
return 0
})
return append(repodirs, repofiles...), nil
}
func GetCommit(userName, repoName, branchname, commitid string) (*git.Commit, error) {
repo, err := git.OpenRepository(RepoPath(userName, repoName))
if err != nil {
return nil, err
}
return repo.GetCommit(branchname, commitid)
}
// GetCommits returns all commits of given branch of repository.
func GetCommits(userName, reposName, branchname string) (*list.List, error) {
repo, err := git.OpenRepository(RepoPath(userName, reposName))
if err != nil {
return nil, err
}
r, err := repo.LookupReference(fmt.Sprintf("refs/heads/%s", branchname))
if err != nil {
return nil, err
}
return r.AllCommits()
}