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/error.go

@@ -0,0 +1,91 @@
+// 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 (
+	"errors"
+	"strings"
+
+	"github.com/pingcap/go-themis"
+	"github.com/pingcap/tidb/mysql"
+	"github.com/pingcap/tidb/terror"
+)
+
+// KV error codes.
+const (
+	CodeIncompatibleDBFormat terror.ErrCode = 1
+	CodeNoDataForHandle      terror.ErrCode = 2
+	CodeKeyExists            terror.ErrCode = 3
+)
+
+var (
+	// ErrClosed is used when close an already closed txn.
+	ErrClosed = errors.New("Error: Transaction already closed")
+	// ErrNotExist is used when try to get an entry with an unexist key from KV store.
+	ErrNotExist = errors.New("Error: key not exist")
+	// ErrConditionNotMatch is used when condition is not met.
+	ErrConditionNotMatch = errors.New("Error: Condition not match")
+	// ErrLockConflict is used when try to lock an already locked key.
+	ErrLockConflict = errors.New("Error: Lock conflict")
+	// ErrLazyConditionPairsNotMatch is used when value in store differs from expect pairs.
+	ErrLazyConditionPairsNotMatch = errors.New("Error: Lazy condition pairs not match")
+	// ErrRetryable is used when KV store occurs RPC error or some other
+	// errors which SQL layer can safely retry.
+	ErrRetryable = errors.New("Error: KV error safe to retry")
+	// ErrCannotSetNilValue is the error when sets an empty value.
+	ErrCannotSetNilValue = errors.New("can not set nil value")
+	// ErrInvalidTxn is the error when commits or rollbacks in an invalid transaction.
+	ErrInvalidTxn = errors.New("invalid transaction")
+
+	// ErrNotCommitted is the error returned by CommitVersion when this
+	// transaction is not committed.
+	ErrNotCommitted = errors.New("this transaction has not committed")
+
+	// ErrKeyExists returns when key is already exist.
+	ErrKeyExists = terror.ClassKV.New(CodeKeyExists, "key already exist")
+)
+
+func init() {
+	kvMySQLErrCodes := map[terror.ErrCode]uint16{
+		CodeKeyExists: mysql.ErrDupEntry,
+	}
+	terror.ErrClassToMySQLCodes[terror.ClassKV] = kvMySQLErrCodes
+}
+
+// IsRetryableError checks if the err is a fatal error and the under going operation is worth to retry.
+func IsRetryableError(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	if terror.ErrorEqual(err, ErrRetryable) ||
+		terror.ErrorEqual(err, ErrLockConflict) ||
+		terror.ErrorEqual(err, ErrConditionNotMatch) ||
+		terror.ErrorEqual(err, themis.ErrRetryable) ||
+		// HBase exception message will tell you if you should retry or not
+		strings.Contains(err.Error(), "try again later") {
+		return true
+	}
+
+	return false
+}
+
+// IsErrNotFound checks if err is a kind of NotFound error.
+func IsErrNotFound(err error) bool {
+	if terror.ErrorEqual(err, ErrNotExist) {
+		return true
+	}
+
+	return false
+}