debug.go

package main

import (
	"fmt"
	"os"
	"runtime"
	"strings"
)

type DebugLevels struct {
	Value int
	Label string
}

var (
	levelPanic   = DebugLevels{0, "Panic  "}
	levelError   = DebugLevels{1, "Error  "}
	levelWarning = DebugLevels{2, "Warning"}
	levelNotice  = DebugLevels{3, "Notice "}
	levelInfo    = DebugLevels{4, "Info   "}
	levelDebug   = DebugLevels{5, "Debug  "}
	levelCrazy   = DebugLevels{6, "Crazy  "}
)

var DebugLevel int
var Dacl string

type PrintFunc func(format string, a ...interface{})

func debugPrint(printFunc PrintFunc, level DebugLevels, format string, a ...interface{}) {
	var s string

	if level.Value <= DebugLevel {
		pc, _, _, ok := runtime.Caller(1)
		s = "?"
		if ok {
			fn := runtime.FuncForPC(pc)
			if fn != nil {
				s = fn.Name()
			}
		}
		newformat := fmt.Sprintf("(%s)["+s+"] ", level.Label) + format
		if Dacl == "All" {
			printFunc(newformat, a...)
		} else {
			fncs := strings.Split(Dacl, ",")
			for _, fnc := range fncs {
				if strings.HasSuffix(s, fnc) {
					printFunc(newformat, a...)
				}
			}
		}
		if level.Value == 0 {
			os.Exit(-1)
		}
	}
}