Writable deploy keys (closes #671) (#3225)

* Add is_writable checkbox to deploy keys interface

* Add writable key option to deploy key form

* Add support for writable ssh keys in the interface

* Rename IsWritable to ReadOnly

* Test: create read-only and read-write deploy keys via api

* Add DeployKey access mode migration

* Update gitea sdk via govendor

* Fix deploykey migration

* Add unittests for writable deploy keys

* Move template text to locale

* Remove implicit column update

* Remove duplicate locales

* Replace ReadOnly field with IsReadOnly method

* Fix deploy_keys related integration test

* Rename v54 migration with v55

* Fix migration hell

models/migrations/migrations.go

@@ -162,6 +162,8 @@ var migrations = []Migration{
 	NewMigration("add reactions", addReactions),
 	// v54 -> v55
 	NewMigration("add pull request options", addPullRequestOptions),
+	// v55 -> v56
+	NewMigration("add writable deploy keys", addModeToDeploKeys),
 }
 
 // Migrate database to current version

models/migrations/v55.go

@@ -0,0 +1,23 @@
+// 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"
+
+	"code.gitea.io/gitea/models"
+	"github.com/go-xorm/xorm"
+)
+
+func addModeToDeploKeys(x *xorm.Engine) error {
+	type DeployKey struct {
+		Mode models.AccessMode `xorm:"NOT NULL DEFAULT 1"`
+	}
+
+	if err := x.Sync2(new(DeployKey)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return nil
+}