path.go

package utils

import (
	"github.com/WingGao/errors"
	"github.com/thoas/go-funk"
	"path/filepath"
	"strings"
)

func GetFileBaseName(s string) string {
	out := ""
	for i := len(s) - 1; i >= 0 && s[i] != '/'; i-- {
		if s[i] == '.' {
			out = s[:i]
			break
		}
	}
	return filepath.Base(out)
}

//ext需要带上'.', eg: '.doc'
func FileRenameExt(s, ext string) string {
	for i := len(s) - 1; i >= 0 && s[i] != '/'; i-- {
		if s[i] == '.' {
			return s[:i] + ext
		}
	}
	return s + ext
}

func ExtIsImage(fp string) bool {
	ext := strings.ToLower(filepath.Ext(fp))
	return funk.ContainsString(IMAGE_EXT_LIST, ext)
}

// 保证路径拼接的结果在scope里
func JoinInScope(scope string, dirs ...string) (string, error) {
	scope, _ = filepath.Abs(scope)

	dst := filepath.Join(append([]string{scope}, dirs...)...)
	//TODO scope+"/" 这个问题
	if strings.HasPrefix(dst, scope) {
		return dst, nil
	}
	return scope, errors.New("out of scope")
}