2014-03-17 14:03:58 -04:00
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// Copyright 2014 The Gogs 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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2014-02-19 04:50:53 -05:00
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package main
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import (
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"bytes"
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"container/list"
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"fmt"
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"io"
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"os"
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"os/exec"
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"strconv"
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"strings"
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"github.com/codegangsta/cli"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/git"
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"github.com/gogits/gogs/models"
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"github.com/gogits/gogs/modules/base"
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)
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var (
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COMMANDS_READONLY = map[string]int{
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"git-upload-pack": models.AU_WRITABLE,
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"git upload-pack": models.AU_WRITABLE,
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"git-upload-archive": models.AU_WRITABLE,
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}
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COMMANDS_WRITE = map[string]int{
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"git-receive-pack": models.AU_READABLE,
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"git receive-pack": models.AU_READABLE,
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}
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)
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var CmdServ = cli.Command{
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Name: "serv",
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Usage: "This command just should be called by ssh shell",
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Description: `
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gogs serv provide access auth for repositories`,
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Action: runServ,
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Flags: []cli.Flag{},
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}
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func parseCmd(cmd string) (string, string) {
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ss := strings.SplitN(cmd, " ", 2)
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if len(ss) != 2 {
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return "", ""
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}
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verb, args := ss[0], ss[1]
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if verb == "git" {
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ss = strings.SplitN(args, " ", 2)
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args = ss[1]
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verb = fmt.Sprintf("%s %s", verb, ss[0])
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}
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return verb, args
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}
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func In(b string, sl map[string]int) bool {
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_, e := sl[b]
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return e
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}
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func runServ(k *cli.Context) {
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base.NewConfigContext()
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models.LoadModelsConfig()
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models.NewEngine()
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keys := strings.Split(os.Args[2], "-")
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if len(keys) != 2 {
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fmt.Println("auth file format error")
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return
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}
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keyId, err := strconv.ParseInt(keys[1], 10, 64)
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if err != nil {
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fmt.Println("auth file format error")
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return
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}
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user, err := models.GetUserByKeyId(keyId)
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if err != nil {
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fmt.Println("You have no right to access")
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return
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}
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cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
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if cmd == "" {
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println("Hi", user.Name, "! You've successfully authenticated, but Gogs does not provide shell access.")
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return
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}
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verb, args := parseCmd(cmd)
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rRepo := strings.Trim(args, "'")
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rr := strings.SplitN(rRepo, "/", 2)
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if len(rr) != 2 {
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println("Unavilable repository", args)
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return
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}
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repoName := rr[1]
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if strings.HasSuffix(repoName, ".git") {
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repoName = repoName[:len(repoName)-4]
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}
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//os.Setenv("userName", user.Name)
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//os.Setenv("userId", strconv.Itoa(int(user.Id)))
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repo, err := models.GetRepositoryByName(user.Id, repoName)
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var isExist bool = true
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if err != nil {
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if err == models.ErrRepoNotExist {
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isExist = false
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} else {
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println("Unavilable repository", err)
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return
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}
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}
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//os.Setenv("repoId", strconv.Itoa(int(repo.Id)))
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//os.Setenv("repoName", repoName)
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isWrite := In(verb, COMMANDS_WRITE)
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isRead := In(verb, COMMANDS_READONLY)
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switch {
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case isWrite:
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has, err := models.HasAccess(user.Name, repoName, models.AU_WRITABLE)
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if err != nil {
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println("Inernel error:", err)
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return
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}
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if !has {
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println("You have no right to write this repository")
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return
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}
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case isRead:
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has, err := models.HasAccess(user.Name, repoName, models.AU_READABLE)
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if err != nil {
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println("Inernel error")
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return
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}
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if !has {
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has, err = models.HasAccess(user.Name, repoName, models.AU_WRITABLE)
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if err != nil {
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println("Inernel error")
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return
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}
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}
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if !has {
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println("You have no right to access this repository")
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return
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}
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default:
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println("Unknown command")
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return
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}
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if !isExist {
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if isRead {
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println("Repository", user.Name+"/"+repoName, "is not exist")
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return
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} else if isWrite {
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_, err := models.CreateRepository(user, repoName, "", "", "", false, true)
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if err != nil {
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println("Create repository failed")
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return
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}
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}
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}
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rep, err := git.OpenRepository(models.RepoPath(user.Name, repoName))
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if err != nil {
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println(err.Error())
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return
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}
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refs, err := rep.AllReferencesMap()
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if err != nil {
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println(err.Error())
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return
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}
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gitcmd := exec.Command(verb, rRepo)
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gitcmd.Dir = base.RepoRootPath
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var s string
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b := bytes.NewBufferString(s)
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gitcmd.Stdout = io.MultiWriter(os.Stdout, b)
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gitcmd.Stdin = io.MultiReader(os.Stdin, b)
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gitcmd.Stderr = os.Stderr
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if err = gitcmd.Run(); err != nil {
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println("execute command error:", err.Error())
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}
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// update
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//w, _ := os.Create("serve.log")
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//defer w.Close()
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//log.SetOutput(w)
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var t = "ok refs/heads/"
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var i int
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var refname string
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for {
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l, err := b.ReadString('\n')
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if err != nil {
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break
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}
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i = i + 1
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l = l[:len(l)-1]
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idx := strings.Index(l, t)
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if idx > 0 {
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refname = l[idx+len(t):]
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}
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}
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var ref *git.Reference
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var ok bool
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var l *list.List
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//log.Info("----", refname, "-----")
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if ref, ok = refs[refname]; !ok {
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refs, err = rep.AllReferencesMap()
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if err != nil {
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println(err.Error())
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return
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}
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if ref, ok = refs[refname]; !ok {
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println("unknow reference name", refname)
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return
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}
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l, err = ref.AllCommits()
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if err != nil {
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println(err.Error())
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return
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}
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} else {
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//log.Info("----", ref, "-----")
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var last *git.Commit
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//log.Info("00000", ref.Oid.String())
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last, err = ref.LastCommit()
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if err != nil {
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println(err.Error())
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return
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}
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ref2, err := rep.LookupReference(ref.Name)
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if err != nil {
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println(err.Error())
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return
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}
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//log.Info("11111", ref2.Oid.String())
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before, err := ref2.LastCommit()
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if err != nil {
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println(err.Error())
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return
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}
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//log.Info("----", before.Id(), "-----", last.Id())
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l = ref.CommitsBetween(before, last)
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}
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commits := make([][]string, 0)
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for e := l.Back(); e != nil; e = e.Prev() {
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commit := e.Value.(*git.Commit)
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commits = append(commits, []string{commit.Id().String(), commit.Message()})
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}
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if err = models.CommitRepoAction(user.Id, user.Name,
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repo.Id, ref.BranchName(), commits); err != nil {
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log.Error("runUpdate.models.CommitRepoAction: %v", err, commits)
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} else {
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//log.Info("refname", refname)
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//log.Info("Listen: %v", cmd)
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//fmt.Println("...", cmd)
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//runUpdate(k)
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c := exec.Command("exec", "git", "update-server-info")
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c.Run()
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}
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}
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