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Source file src/github.com/go-openapi/analysis/internal/debug/debug.go

Documentation: github.com/go-openapi/analysis/internal/debug

     1  // Copyright 2015 go-swagger maintainers
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package debug
    16  
    17  import (
    18  	"fmt"
    19  	"log"
    20  	"os"
    21  	"path/filepath"
    22  	"runtime"
    23  )
    24  
    25  var (
    26  	output = os.Stdout
    27  )
    28  
    29  // GetLogger provides a prefix debug logger
    30  func GetLogger(prefix string, debug bool) func(string, ...interface{}) {
    31  	if debug {
    32  		logger := log.New(output, prefix+":", log.LstdFlags)
    33  
    34  		return func(msg string, args ...interface{}) {
    35  			_, file1, pos1, _ := runtime.Caller(1)
    36  			logger.Printf("%s:%d: %s", filepath.Base(file1), pos1, fmt.Sprintf(msg, args...))
    37  		}
    38  	}
    39  
    40  	return func(_ string, _ ...interface{}) {}
    41  }
    42  

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