58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2018 Intel Corporation. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package debug
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import (
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"fmt"
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"runtime"
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"strings"
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)
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const (
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prefix = "DEBUG"
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)
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var (
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isEnabled bool
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)
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func getFileAndLine() string {
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_, file, line, ok := runtime.Caller(2)
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if !ok {
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return "???:0"
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}
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parts := strings.Split(file, "/")
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return fmt.Sprintf("%s:%d", parts[len(parts)-1], line)
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}
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// Activate activates debugging output
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func Activate() {
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isEnabled = true
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}
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// Print prints its arguments with fmt.Println() if debug output is activated
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func Print(obj ...interface{}) {
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if isEnabled {
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fmt.Println(append([]interface{}{prefix, getFileAndLine()}, obj...)...)
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}
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}
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// Printf prints its arguments with fmt.Printf() if debug output is activated
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func Printf(pattern string, obj ...interface{}) {
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if isEnabled {
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fmt.Printf(strings.Join([]string{prefix, getFileAndLine(), pattern + "\n"}, " "), obj...)
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}
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}
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