git-server/update.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 main

import (
"os"
"os/exec"
"strings"
"strconv"
"container/list"

"github.com/codegangsta/cli"
//"github.com/gogits/gogs/modules/log"
"github.com/gogits/gogs/models"
"github.com/gogits/gogs/modules/base"
"github.com/qiniu/log"
"github.com/gogits/git"
)

var CmdUpdate = cli.Command{
	Name:  "update",
	Usage: "This command just should be called by ssh shell",
	Description: `
gogs serv provide access auth for repositories`,
	Action: runUpdate,
	Flags:  []cli.Flag{},
}

// for command: ./gogs update
func runUpdate(c *cli.Context) {
	//level := "0"
	//os.MkdirAll("log", os.ModePerm)
	//log.NewLogger(10000, "file", fmt.Sprintf(`{"level":%s,"filename":"%s"}`, level, "log/serv.log"))
	//log.Info("start update logging...")

	w, _ := os.Create("update.log")
	defer w.Close()

	log.SetOutput(w)



	args := c.Args()
	if len(args) != 3 {
		log.Error("received less 3 parameters")
		return
	}

	refName := args[0]
	oldCommitId := args[1]
	newCommitId := args[2]

	userName := os.Getenv("userName")
	userId := os.Getenv("userId")
	//repoId := os.Getenv("repoId")
	repoName := os.Getenv("repoName")

	log.Info("username", userName)
	log.Info("repoName", repoName)
	f := models.RepoPath(userName, repoName)
	log.Debug("f", f)

	gitUpdate := exec.Command("git", "update-server-info")
	gitUpdate.Dir = f
	gitUpdate.Run()

	repo, err := git.OpenRepository(f)
	if err != nil {
		log.Error("runUpdate.Open repoId: %v", err)
		return
	}

	ref, err := repo.LookupReference(refName)
	if err != nil {
		log.Error("runUpdate.Ref repoId: %v", err)
		return
	}

	oldOid, err := git.NewOidFromString(oldCommitId)
	if err != nil {
		log.Error("runUpdate.Ref repoId: %v", err)
		return
	}

	oldCommit, err := repo.LookupCommit(oldOid)
	if err != nil {
		log.Error("runUpdate.Ref repoId: %v", err)
		return
	}

	newOid, err := git.NewOidFromString(newCommitId)
	if err != nil {
		log.Error("runUpdate.Ref repoId: %v", err)
		return
	}

	newCommit, err := repo.LookupCommit(newOid)
	if err != nil {
		log.Error("runUpdate.Ref repoId: %v", err)
		return
	}

	var l *list.List
	// if a new branch
	if strings.HasPrefix(oldCommitId, "0000000") {
		l, err = ref.AllCommits()
		
	} else {
		l = ref.CommitsBetween(newCommit, oldCommit)
	}

	if err != nil {
		log.Error("runUpdate.Commit repoId: %v", err)
		return
	}

	sUserId, err := strconv.Atoi(userId)
	if err != nil {
		log.Error("runUpdate.Parse userId: %v", err)
		return
	}

	repos, err := models.GetRepositoryByName(int64(sUserId), repoName)
	if err != nil {
		log.Error("runUpdate.GetRepositoryByName userId: %v", err)
		return
	}

	commits := make([][]string, 0)
	var maxCommits = 3
	for e := l.Front(); e != nil; e = e.Next() {
		commit := e.Value.(*git.Commit)
		commits = append(commits, []string{commit.Id().String(), commit.Message()})
		if len(commits) >= maxCommits {
			break
		}
	}

	//commits = append(commits, []string{lastCommit.Id().String(), lastCommit.Message()})
	if err = models.CommitRepoAction(int64(sUserId), userName,
		repos.Id, repoName, refName, &base.PushCommits{l.Len(), commits}); err != nil {
		log.Error("runUpdate.models.CommitRepoAction: %v", err)
	}
}