check for extension and filename first, without load a file content

removed language and ok variables declaration

cli/enry/main.go

@@ -61,6 +61,9 @@ func main() {
 			return nil
 		}
 
+		language, ok := enry.GetLanguageByExtension(path)
+		if !ok {
+			if language, ok = enry.GetLanguageByFilename(path); !ok {
 				content, err := ioutil.ReadFile(path)
 				if err != nil {
 					errors = true
@@ -68,10 +71,12 @@ func main() {
 					return nil
 				}
 
-		language := enry.GetLanguage(filepath.Base(path), content)
+				language = enry.GetLanguage(filepath.Base(path), content)
 				if language == enry.OtherLanguage {
 					return nil
 				}
+			}
+		}
 
 		out[language] = append(out[language], relativePath)
 		return nil