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/util/segmentmap/segmentmap.go

@@ -0,0 +1,81 @@
+// 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 segmentmap
+
+import (
+	"hash/crc32"
+
+	"github.com/juju/errors"
+)
+
+// SegmentMap is used for handle a big map slice by slice.
+// It's not thread safe.
+type SegmentMap struct {
+	size int64
+	maps []map[string]interface{}
+
+	crcTable *crc32.Table
+}
+
+// NewSegmentMap create a new SegmentMap.
+func NewSegmentMap(size int64) (*SegmentMap, error) {
+	if size <= 0 {
+		return nil, errors.Errorf("Invalid size: %d", size)
+	}
+
+	sm := &SegmentMap{
+		maps: make([]map[string]interface{}, size),
+		size: size,
+	}
+	for i := int64(0); i < size; i++ {
+		sm.maps[i] = make(map[string]interface{})
+	}
+
+	sm.crcTable = crc32.MakeTable(crc32.Castagnoli)
+	return sm, nil
+}
+
+// Get is the same as map[k].
+func (sm *SegmentMap) Get(key []byte) (interface{}, bool) {
+	idx := int64(crc32.Checksum(key, sm.crcTable)) % sm.size
+	val, ok := sm.maps[idx][string(key)]
+	return val, ok
+}
+
+// GetSegment gets the map specific by index.
+func (sm *SegmentMap) GetSegment(index int64) (map[string]interface{}, error) {
+	if index >= sm.size || index < 0 {
+		return nil, errors.Errorf("index out of bound: %d", index)
+	}
+
+	return sm.maps[index], nil
+}
+
+// Set if key not exists, returns whether already exists.
+func (sm *SegmentMap) Set(key []byte, value interface{}, force bool) bool {
+	idx := int64(crc32.Checksum(key, sm.crcTable)) % sm.size
+	k := string(key)
+	_, exist := sm.maps[idx][k]
+	if exist && !force {
+		return exist
+	}
+
+	sm.maps[idx][k] = value
+	return exist
+}
+
+// SegmentCount returns how many inner segments.
+func (sm *SegmentMap) SegmentCount() int64 {
+	return sm.size
+}