Add protected branch whitelists for merging (#3689)

* Add database migrations for merge whitelist

* Add merge whitelist settings for protected branches

* Add checks for merge whitelists

models/migrations/migrations.go

@@ -170,6 +170,8 @@ var migrations = []Migration{
 	NewMigration("add closed_unix column for issues", addIssueClosedTime),
 	// v58 -> v59
 	NewMigration("add label descriptions", addLabelsDescriptions),
+	// v59 -> v60
+	NewMigration("add merge whitelist for protected branches", addProtectedBranchMergeWhitelist),
 }
 
 // Migrate database to current version

models/migrations/v59.go

@@ -0,0 +1,24 @@
+// Copyright 2018 The Gitea 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"
+
+	"github.com/go-xorm/xorm"
+)
+
+func addProtectedBranchMergeWhitelist(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		EnableMergeWhitelist  bool    `xorm:"NOT NULL DEFAULT false"`
+		MergeWhitelistUserIDs []int64 `xorm:"JSON TEXT"`
+		MergeWhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
+	}
+
+	if err := x.Sync2(new(ProtectedBranch)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return nil
+}