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/kv/bufpool.go

@@ -0,0 +1,58 @@
+// 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 kv
+
+import (
+	"sync"
+
+	"github.com/ngaut/log"
+)
+
+// A cache holds a set of reusable objects.
+// The slice is a stack (LIFO).
+// If more are needed, the cache creates them by calling new.
+type cache struct {
+	mu    sync.Mutex
+	name  string
+	saved []MemBuffer
+	// factory
+	fact func() MemBuffer
+}
+
+func (c *cache) put(x MemBuffer) {
+	c.mu.Lock()
+	if len(c.saved) < cap(c.saved) {
+		c.saved = append(c.saved, x)
+	} else {
+		log.Warnf("%s is full, size: %d, you may need to increase pool size", c.name, len(c.saved))
+	}
+	c.mu.Unlock()
+}
+
+func (c *cache) get() MemBuffer {
+	c.mu.Lock()
+	n := len(c.saved)
+	if n == 0 {
+		c.mu.Unlock()
+		return c.fact()
+	}
+	x := c.saved[n-1]
+	c.saved = c.saved[0 : n-1]
+	c.mu.Unlock()
+	return x
+}
+
+func newCache(name string, cap int, fact func() MemBuffer) *cache {
+	return &cache{name: name, saved: make([]MemBuffer, 0, cap), fact: fact}
+}