log.go

//=============================================================
// log.go
//-------------------------------------------------------------
// Various logging functions
//=============================================================
package utilz

import (
	"fmt"
	"runtime"
	"strings"
	"time"
)

func chopPath(original string) string {
	i := strings.LastIndex(original, "/")
	if i == -1 {
		return original
	} else {
		return original[i+1:]
	}
}
func Debug(msg string, vars ...interface{}) {
	print_(msg, "\x1b[43;34m", "DEBUG", vars)
}

func Error(msg string, vars ...interface{}) {
	print_(msg, "\x1b[41;1m", "ERROR", vars)
}

func Warning(msg string, vars ...interface{}) {
	print_(msg, "\x1b[43;1m", "WARNING", vars)
}

func print_(msg, color, type_ string, vars ...interface{}) {
	function, file, line, _ := runtime.Caller(2)

	for _, v := range vars {
		txt := fmt.Sprintf("%v", v)
		txt = strings.Trim(txt, "[")
		txt = strings.Trim(txt, "]")
		msg = fmt.Sprintf("%v %v", msg, txt)
	}
	fmt.Printf("%v[%v][%s:%d][%s][%v]\x1b[0;1m %v\n", color, time.Now().Format("15:04:05.000"), chopPath(file), line, runtime.FuncForPC(function).Name(), type_, msg)
}

func PrintMemoryUsage() {
	var m runtime.MemStats
	runtime.ReadMemStats(&m)
	Debug(fmt.Sprintf("\tAlloc = %v MiB", m.Alloc/1024/1024))
	Debug(fmt.Sprintf("\tTotalAlloc = %v MiB", m.TotalAlloc/1024/1024))
	Debug(fmt.Sprintf("\tSys = %v MiB", m.Sys/1024/1024))
	Debug(fmt.Sprintf("\tNumGC = %v\n", m.NumGC))
}