goutil/goutil.go

package goutil

import (
	"io/ioutil"
	"path/filepath"
	"strings"
)

func WriteFile(filename string, data string) error {
	return ioutil.WriteFile(filename, []byte(data), 0644)
}

func ReadFile(filename string) (string, error) {
	data, err := ioutil.ReadFile(filename)
	return string(data), err
}

func TrimExt(path string) string {
	extension := filepath.Ext(path)
	return path[0 : len(path)-len(extension)]
}

func ListFilesExt(dir string, ext string) []string {
	list := make([]string, 0)
	ext = strings.ToUpper(ext)
	files, err := ioutil.ReadDir(dir)
	if err == nil {
		for _, file := range files {
			if !file.IsDir() {
				if strings.ToUpper(filepath.Ext(file.Name())) == ext {
					list = append(list, file.Name())
				}
			}
		}
	}
	return list
}