log.go

/*
 * Copyright (C) 2017 Dgraph Labs, Inc. and Contributors
 *
 * 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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package x

import (
	"fmt"
	"log"
	"os"
)

var (
	Logger = log.New(os.Stderr, "", log.Lshortfile|log.Flags())
)

// Printf does a log.Printf. We often do printf for debugging but has to keep
// adding import "fmt" or "log" and removing them after we are done.
// Let's add Printf to "x" and include "x" almost everywhere. Caution: Do remember
// to call x.Init. For tests, you need a TestMain that calls x.Init.
func Printf(format string, args ...interface{}) {
	Logger.Output(2, fmt.Sprintf(format, args...))
}

func Println(args ...interface{}) {
	Logger.Output(2, fmt.Sprintln(args...))
}