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120 lines
2.8 KiB
Go
120 lines
2.8 KiB
Go
package main
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// This trick is learnt from a post by Rob Pike
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// https://groups.google.com/d/msg/golang-nuts/gU7oQGoCkmg/j3nNxuS2O_sJ
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import (
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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)
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type infoLogging bool
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type debugLogging bool
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type errorLogging bool
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type requestLogging bool
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type responseLogging bool
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var (
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info infoLogging
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debug debugLogging
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errl errorLogging
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dbgRq requestLogging
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dbgRep responseLogging
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logFile io.Writer
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debugLog, errorLog, requestLog, responseLog *log.Logger
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)
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var (
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verbose bool
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colorize bool
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)
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func init() {
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flag.BoolVar((*bool)(&info), "info", true, "info log")
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flag.BoolVar((*bool)(&debug), "debug", false, "debug log, with this option, log goes to stdout with color")
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flag.BoolVar((*bool)(&errl), "err", true, "error log")
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flag.BoolVar((*bool)(&dbgRq), "request", false, "request log")
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flag.BoolVar((*bool)(&dbgRep), "reply", false, "reply log")
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flag.BoolVar(&verbose, "v", false, "More info in request/response logging")
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flag.BoolVar(&colorize, "color", false, "Colorize log output")
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}
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func initLog() {
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logFile = os.Stdout
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if bool(debug) {
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colorize = true
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} else if config.LogFile != "" {
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if f, err := os.OpenFile(expandTilde(config.LogFile),
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os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0600); err != nil {
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fmt.Printf("Can't open log file, logging to stdout: %v\n", err)
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} else {
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logFile = f
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}
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}
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log.SetOutput(logFile)
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if colorize && !isWindows() {
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errorLog = log.New(logFile, "\033[31m[Error]\033[0m ", log.LstdFlags)
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debugLog = log.New(logFile, "\033[34m[Debug]\033[0m ", log.LstdFlags)
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requestLog = log.New(logFile, "\033[32m[>>>>>]\033[0m ", log.LstdFlags)
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responseLog = log.New(logFile, "\033[33m[<<<<<]\033[0m ", log.LstdFlags)
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} else {
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errorLog = log.New(logFile, "[ERROR] ", log.LstdFlags)
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debugLog = log.New(logFile, "[DEBUG] ", log.LstdFlags)
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requestLog = log.New(logFile, "[>>>>>] ", log.LstdFlags)
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responseLog = log.New(logFile, "[<<<<<] ", log.LstdFlags)
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}
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}
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func (d infoLogging) Printf(format string, args ...interface{}) {
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if d {
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log.Printf(format, args...)
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}
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}
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func (d infoLogging) Println(args ...interface{}) {
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if d {
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log.Println(args...)
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}
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}
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func (d debugLogging) Printf(format string, args ...interface{}) {
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if d {
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debugLog.Printf(format, args...)
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}
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}
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func (d debugLogging) Println(args ...interface{}) {
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if d {
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debugLog.Println(args...)
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}
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}
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func (d errorLogging) Printf(format string, args ...interface{}) {
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if d {
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errorLog.Printf(format, args...)
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}
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}
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func (d errorLogging) Println(args ...interface{}) {
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if d {
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errorLog.Println(args...)
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}
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}
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func (d requestLogging) Printf(format string, args ...interface{}) {
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if d {
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requestLog.Printf(format, args...)
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}
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}
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func (d responseLogging) Printf(format string, args ...interface{}) {
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if d {
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responseLog.Printf(format, args...)
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}
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}
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