2 files changed, 84 insertions, 0 deletions
diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index cf3785c6..d58a800d 100644
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -72,6 +72,8 @@ var migrations = []Migration{
 
 	// v13 -> v14:v0.9.87
 	NewMigration("set comment updated with created", setCommentUpdatedWithCreated),
+	// v14 -> v15:v0.9.147
+	NewMigration("generate and migrate Git hooks", generateAndMigrateGitHooks),
 }
 
 // Migrate database to current version
diff --git a/models/migrations/v15.go b/models/migrations/v15.go
new file mode 100644
index 00000000..0603dbbb
--- /dev/null
+++ b/models/migrations/v15.go
@@ -0,0 +1,82 @@
+// Copyright 2017 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 migrations
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/Unknwon/com"
+	"github.com/go-xorm/xorm"
+
+	"github.com/gogits/gogs/modules/setting"
+)
+
+func generateAndMigrateGitHooks(x *xorm.Engine) (err error) {
+	type Repository struct {
+		ID      int64
+		OwnerID int64
+		Name    string
+	}
+	type User struct {
+		ID   int64
+		Name string
+	}
+	var (
+		hookNames = []string{"pre-receive", "update", "post-receive"}
+		hookTpls  = []string{
+			fmt.Sprintf("#!/usr/bin/env %s\n\"%s\" hook --config='%s' pre-receive\n", setting.ScriptType, setting.AppPath, setting.CustomConf),
+			fmt.Sprintf("#!/usr/bin/env %s\n\"%s\" hook --config='%s' update $1 $2 $3\n", setting.ScriptType, setting.AppPath, setting.CustomConf),
+			fmt.Sprintf("#!/usr/bin/env %s\n\"%s\" hook --config='%s' post-receive\n", setting.ScriptType, setting.AppPath, setting.CustomConf),
+		}
+	)
+
+	// Cleanup old update.log files.
+	filepath.Walk(setting.LogRootPath, func(path string, info os.FileInfo, err error) error {
+		if !info.IsDir() && strings.HasPrefix(filepath.Base(path), "update.log") {
+			os.Remove(path)
+		}
+		return nil
+	})
+
+	return x.Where("id > 0").Iterate(new(Repository),
+		func(idx int, bean interface{}) error {
+			repo := bean.(*Repository)
+			user := new(User)
+			has, err := x.Where("id = ?", repo.OwnerID).Get(user)
+			if err != nil {
+				return fmt.Errorf("query owner of repository [repo_id: %d, owner_id: %d]: %v", repo.ID, repo.OwnerID, err)
+			} else if !has {
+				return nil
+			}
+
+			repoPath := filepath.Join(setting.RepoRootPath, strings.ToLower(user.Name), strings.ToLower(repo.Name)) + ".git"
+			hookDir := filepath.Join(repoPath, "hooks")
+			customHookDir := filepath.Join(repoPath, "custom_hooks")
+
+			for i, hookName := range hookNames {
+				oldHookPath := filepath.Join(hookDir, hookName)
+				newHookPath := filepath.Join(customHookDir, hookName)
+
+				// Gogs didn't allow user to set custom update hook thus no migration for it.
+				// In case user runs this migration multiple times, and custom hook exists,
+				// we assume it's been migrated already.
+				if hookName != "update" && com.IsFile(oldHookPath) && !com.IsExist(newHookPath) {
+					os.MkdirAll(customHookDir, os.ModePerm)
+					if err = os.Rename(oldHookPath, newHookPath); err != nil {
+						return fmt.Errorf("move hook file to custom directory '%s' -> '%s': %v", oldHookPath, newHookPath, err)
+					}
+				}
+
+				if err = ioutil.WriteFile(oldHookPath, []byte(hookTpls[i]), 0777); err != nil {
+					return fmt.Errorf("write hook file '%s': %v", oldHookPath, err)
+				}
+			}
+			return nil
+		})
+}