forked from mattn/goreman
/
log_windows.go
60 lines (54 loc) · 1.08 KB
/
log_windows.go
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package main
import (
"log"
"os"
"strings"
"sync"
"github.com/anschelsc/doscolor"
)
type clogger struct {
idx int
proc string
}
var mutex = new(sync.Mutex)
var cerr = doscolor.NewWrapper(os.Stderr)
var elog *log.Logger
var colors = []doscolor.Color {
doscolor.Green | doscolor.Bright,
doscolor.Cyan | doscolor.Bright,
doscolor.Magenta | doscolor.Bright,
doscolor.Yellow | doscolor.Bright,
doscolor.Blue | doscolor.Bright,
doscolor.Red | doscolor.Bright,
}
var ci int
// write handler of logger.
func (l *clogger) Write(p []byte) (n int, err error) {
mutex.Lock()
defer mutex.Unlock()
for _, line := range strings.Split(string(p), "\n") {
if len(line) > 0 && line[len(line)-1] == '\n' {
line = line[0:len(line)-2]
}
if line != "" {
cerr.Set(colors[l.idx])
elog.Printf("[%s] %s", l.proc, line)
cerr.Restore()
}
}
n = len(p)
return
}
// create logger instance.
func createLogger(proc string) *clogger {
if elog == nil {
elog = log.New(cerr, "", log.LstdFlags)
cerr.Save()
}
l := &clogger {ci, proc}
ci++
if ci >= len(colors) {
ci = 0
}
return l
}