util.go

package tool

import (
	"fmt"
	"net/url"
	"os"
	"path/filepath"
	"strings"
)

func CurrentDir(joinPath ...string) (string, error) {
	dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
	if err != nil {
		return "", err
	}
	p := strings.Replace(dir, "\\", "/", -1)
	whole := filepath.Join(joinPath...)
	whole = filepath.Join(p, whole)
	return whole, nil
}

func ResolveURL(u *url.URL, p string) string {
	var Url, err = u.Parse(p)
	if err != nil {
		panic(err)
	}
	return Url.String()
}

func DrawProgressBar(prefix string, proportion float32, width int, suffix ...string) {
	pos := int(proportion * float32(width))
	s := fmt.Sprintf("[%s] %s%*s %6.2f%% %s",
		prefix, strings.Repeat("■", pos), width-pos, "", proportion*100, strings.Join(suffix, ""))
	fmt.Print("\r" + s)
}