(#1)

- refactored User service from IceWhaleTech/CasaOS as first modularized service

pkg/utils/file/file.go

@@ -0,0 +1,146 @@
+package file
+
+import (
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+	"strings"
+)
+
+// GetExt get the file ext
+func GetExt(fileName string) string {
+	return path.Ext(fileName)
+}
+
+func CheckNotExist(src string) bool {
+	_, err := os.Stat(src)
+
+	return os.IsNotExist(err)
+}
+
+// IsNotExistMkDir create a directory if it does not exist
+func IsNotExistMkDir(src string) error {
+	if notExist := CheckNotExist(src); notExist {
+		if err := MkDir(src); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// MkDir create a directory
+func MkDir(src string) error {
+	err := os.MkdirAll(src, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	os.Chmod(src, 0777)
+
+	return nil
+}
+
+// IsNotExistMkDir create a directory if it does not exist
+func IsNotExistCreateFile(src string) error {
+	if notExist := CheckNotExist(src); notExist {
+		if err := CreateFile(src); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func Exists(path string) bool {
+	_, err := os.Stat(path) //os.Stat获取文件信息
+	if err != nil {
+		return os.IsExist(err)
+	}
+	return true
+}
+
+func CreateFile(path string) error {
+	file, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	return nil
+}
+
+func ReadFullFile(path string) []byte {
+	file, err := os.Open(path)
+	if err != nil {
+		return []byte("")
+	}
+	defer file.Close()
+	content, err := ioutil.ReadAll(file)
+	if err != nil {
+		return []byte("")
+	}
+	return content
+}
+
+/**
+ * @description:
+ * @param {*} src
+ * @param {*} dst
+ * @param {string} style
+ * @return {*}
+ * @method:
+ * @router:
+ */
+func CopySingleFile(src, dst, style string) error {
+	var err error
+	var srcfd *os.File
+	var dstfd *os.File
+	var srcinfo os.FileInfo
+
+	if Exists(dst) {
+		if style == "skip" {
+			return nil
+		} else {
+			os.Remove(dst)
+		}
+	}
+
+	if srcfd, err = os.Open(src); err != nil {
+		return err
+	}
+	defer srcfd.Close()
+
+	if dstfd, err = os.Create(dst); err != nil {
+		return err
+	}
+	defer dstfd.Close()
+
+	if _, err = io.Copy(dstfd, srcfd); err != nil {
+		return err
+	}
+	if srcinfo, err = os.Stat(src); err != nil {
+		return err
+	}
+	return os.Chmod(dst, srcinfo.Mode())
+}
+
+func WriteToPath(data []byte, path, name string) error {
+	fullPath := path
+	if strings.HasSuffix(path, "/") {
+		fullPath += name
+	} else {
+		fullPath += "/" + name
+	}
+	IsNotExistCreateFile(fullPath)
+	file, err := os.OpenFile(fullPath,
+		os.O_WRONLY|os.O_TRUNC|os.O_CREATE,
+		0666,
+	)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	_, err = file.Write(data)
+
+	return err
+}