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/perfschema/perfschema.go

@@ -0,0 +1,74 @@
+// Copyright 2016 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 perfschema
+
+import (
+	"github.com/pingcap/tidb/kv"
+	"github.com/pingcap/tidb/model"
+	"github.com/pingcap/tidb/table"
+)
+
+// StatementInstrument defines the methods for statement instrumentation points
+type StatementInstrument interface {
+	RegisterStatement(category, name string, elem interface{})
+
+	StartStatement(sql string, connID uint64, callerName EnumCallerName, elem interface{}) *StatementState
+
+	EndStatement(state *StatementState)
+}
+
+// PerfSchema defines the methods to be invoked by the executor
+type PerfSchema interface {
+
+	// For statement instrumentation only.
+	StatementInstrument
+
+	// GetDBMeta returns db info for PerformanceSchema.
+	GetDBMeta() *model.DBInfo
+	// GetTable returns table instance for name.
+	GetTable(name string) (table.Table, bool)
+}
+
+type perfSchema struct {
+	store   kv.Storage
+	dbInfo  *model.DBInfo
+	tables  map[string]*model.TableInfo
+	mTables map[string]table.Table // MemoryTables for perfSchema
+
+	// Used for TableStmtsHistory
+	historyHandles []int64
+	historyCursor  int
+}
+
+var _ PerfSchema = (*perfSchema)(nil)
+
+// PerfHandle is the only access point for the in-memory performance schema information
+var (
+	PerfHandle PerfSchema
+)
+
+// NewPerfHandle creates a new perfSchema on store.
+func NewPerfHandle(store kv.Storage) PerfSchema {
+	schema := PerfHandle.(*perfSchema)
+	schema.store = store
+	schema.historyHandles = make([]int64, 0, stmtsHistoryElemMax)
+	_ = schema.initialize()
+	registerStatements()
+	return PerfHandle
+}
+
+func init() {
+	schema := &perfSchema{}
+	PerfHandle = schema
+}