logging.go

package Sex

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

// Geting formated string
func Fmt(s string, v...interface {}) string {
    return fmt.Sprintf(s, v...)
}

var logger *log.Logger = log.New(os.Stderr, "\r\n", log.LstdFlags | log.Lmicroseconds)

// Get the logger from SexPistol
func Logger() *log.Logger {
    return logger
}

// Logging a raw log
func RawLog(typ string, useCaller bool, args...interface{}) {

    caller := ""
    if useCaller {
        _, file, line, _ := runtime.Caller(2)
        if len(file) > 10 {
            fmt_file := ""

            write := true
            bar_count := 0
            bar_total := strings.Count(file, "/")
            for _, c := range file {
                if write || c == '/' || bar_count == bar_total {
                    fmt_file += string(c)
                }

                write = false
                if c == '/' {
                    write = true
                    bar_count += 1
                }
            }

            file = fmt_file
        }

        caller = Fmt("%s:%d ", file, line)
    }

    fmt_args := []interface {}{caller, Fmt("%s", typ)}
    fmt_args = append(fmt_args, fmt.Sprint(args...))

    logger.Print(fmt_args...)
}

// Logging information logs with Sex.Logger()
func Log (args ...interface {}) {
    RawLog("\033[32;1m[info] \033[00m", true, args...)
}

// Logging error logs with Sex.Logger()
func Err (args ...interface {}) {
    RawLog("\033[31;1m[erro] \033[00m", true, args...)
}

// Logging warning logs with Sex.Logger()
func War (args ...interface {}) {
    RawLog("\033[33;1m[warn] \033[00m", true, args...)
}

// Logging error logs with Sex.Logger() and killing the application
func Die (args ...interface {}) {
    RawLog("\033[31;1m[erro] \033[00m", true, args...)
    os.Exit(1)
}

// Logging information formated logs with Sex.Logger()
// Example:
//    Logf("%s %+v", "joao", []string{"joao", "maria"})
//    Logf("%.2f", 409.845)
func Logf (args ...interface {}) {
    RawLog("\033[32;1m[info] \033[00m", true, Fmt(args[0].(string), args[1:]...))
}

// Logging error formated logs with Sex.Logger()
// Example:
//    Errf("%s %+v", "joao", []string{"joao", "maria"})
//    Errf("%.2f", 409.845)
func Errf (args ...interface {}) {
    RawLog("\033[31;1m[erro] \033[00m", true, Fmt(args[0].(string), args[1:]...))
}

// Logging warning formated logs with Sex.Logger()
// Example:
//    Warf("%s %+v", "joao", []string{"joao", "maria"})
//    Warf("%.2f", 409.845)
func Warf (args ...interface {}) {
    RawLog("\033[33;1m[warn] \033[00m", true, Fmt(args[0].(string), args[1:]...))
}

// Logging error logs with Sex.Logger() and killing the application
// Example:
//    Dief("%s %+v", "joao", []string{"joao", "maria"})
//    Dief("%.2f", 409.845)
func Dief (args ...interface {}) {
    RawLog("\033[31;1m[erro] \033[00m", true, Fmt(args[0].(string), args[1:]...))
    os.Exit(1)
}