Create system webhook column (and migration)

models/migrations/migrations.go

@@ -188,6 +188,8 @@ var migrations = []Migration{
 	NewMigration("Fix topic repository count", fixTopicRepositoryCount),
 	// v127 -> v128
 	NewMigration("add repository code language statistics", addLanguageStats),
+	// v128 -> v129
+	NewMigration("Add IsSystemWebhook column to webhooks table", addSystemWebhookColumn),
 }
 
 // Migrate database to current version

models/migrations/v128.go

@@ -0,0 +1,22 @@
+// Copyright 2020 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"
+
+	"xorm.io/xorm"
+)
+
+func addSystemWebhookColumn(x *xorm.Engine) error {
+	type Webhook struct {
+		IsSystemWebhook bool `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync2(new(Webhook)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return nil
+}

models/webhook.go

@@ -91,8 +91,9 @@ const (
 // Webhook represents a web hook object.
 type Webhook struct {
 	ID              int64 `xorm:"pk autoincr"`
-	RepoID       int64  `xorm:"INDEX"`
+	RepoID          int64 `xorm:"INDEX"` // An ID of 0 indicates either a default or system webhook
 	OrgID           int64 `xorm:"INDEX"`
+	IsSystemWebhook bool
 	URL             string `xorm:"url TEXT"`
 	Signature       string `xorm:"TEXT"`
 	HTTPMethod      string `xorm:"http_method"`