Integrate public as bindata optionally (#293)

* Dropped unused codekit config

* Integrated dynamic and static bindata for public

* Ignore public bindata

* Add a general generate make task

* Integrated flexible public assets into web command

* Updated vendoring, added all missiong govendor deps

* Made the linter happy with the bindata and dynamic code

* Moved public bindata definition to modules directory

* Ignoring the new bindata path now

* Updated to the new public modules import path

* Updated public bindata command and drop the new prefix

vendor/github.com/pingcap/tidb/ddl/callback.go

@@ -0,0 +1,45 @@
+// Copyright 2015 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ddl
+
+import "github.com/pingcap/tidb/model"
+
+// Callback is the interface supporting callback function when DDL changed.
+type Callback interface {
+	// OnChanged is called after schema is changed.
+	OnChanged(err error) error
+	// OnJobRunBefore is called before running job.
+	OnJobRunBefore(job *model.Job)
+	// OnJobUpdated is called after the running job is updated.
+	OnJobUpdated(job *model.Job)
+}
+
+// BaseCallback implements Callback.OnChanged interface.
+type BaseCallback struct {
+}
+
+// OnChanged implements Callback interface.
+func (c *BaseCallback) OnChanged(err error) error {
+	return err
+}
+
+// OnJobRunBefore implements Callback.OnJobRunBefore interface.
+func (c *BaseCallback) OnJobRunBefore(job *model.Job) {
+	// Nothing to do.
+}
+
+// OnJobUpdated implements Callback.OnJobUpdated interface.
+func (c *BaseCallback) OnJobUpdated(job *model.Job) {
+	// Nothing to do.
+}