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ex_cmd

0.15.0
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Library for running and communicating with external programs using a back-pressure mechanism

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ex_cmd go_src logger.go
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go_src/logger.go 

package main



import (

	"io"

	"log"

	"os"

)



var logger *log.Logger



func initLogger(flag string) {

	var file io.Writer

	switch flag {

	case "":

		file = NullReadWriteCloser{

			Signal: make(chan struct{}, 1),

		}

	case "|1":

		file = os.Stdout

	case "|2":

		file = os.Stderr

	default:

		var err error

		file, err = os.OpenFile(flag, os.O_CREATE|os.O_WRONLY, 0666)

		fatalIf(err)

	}

	logger = log.New(file, "[odu]: ", log.Lmicroseconds)

}