move md5 tools

internal/md5/file.go

@@ -0,0 +1,22 @@
+package md5
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+	"os"
+)
+
+func File(filename string) (string, error) {
+	file, err := os.Open(filename)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	hash := md5.New()
+	if _, err = io.Copy(hash, file); err != nil {
+		return "", err
+	}
+	return fmt.Sprintf("%x", hash.Sum(nil)), nil
+}

internal/piwigo/piwigotools/file_to_upload.go

@@ -4,6 +4,8 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+
+	"github.com/celogeek/piwigo-cli/internal/md5"
 )
 
 type FileToUpload struct {
@@ -26,7 +28,7 @@ func (f *FileToUpload) Checked() bool {
 
 func (f *FileToUpload) MD5() string {
 	if f.md5 == nil {
-		md5, err := Md5File(f.FullPath())
+		md5, err := md5.File(f.FullPath())
 		if err != nil {
 			return ""
 		}

internal/piwigo/piwigotools/md5.go

@@ -1,24 +0,0 @@
-package piwigotools
-
-import (
-	"crypto/md5"
-	"fmt"
-	"io"
-	"os"
-)
-
-func Md5File(filename string) (result string, err error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return
-	}
-	defer file.Close()
-
-	hash := md5.New()
-	_, err = io.Copy(hash, file)
-	if err != nil {
-		return
-	}
-	result = fmt.Sprintf("%x", hash.Sum(nil))
-	return
-}