Bump argos-translate-files, fix src_lang initialization, checks

libretranslate/app.py

@@ -855,7 +855,10 @@ def create_app(args):
             if source_lang == "auto":
                 src_texts = argostranslatefiles.get_texts(filepath)
                 candidate_langs = detect_languages(src_texts)
-                src_lang = candidate_langs[0]
+                detected_src_lang = candidate_langs[0]
+                src_lang = next(iter([l for l in languages if l.code == detected_src_lang["language"]]), None)
+                if src_lang is None:
+                    abort(400, description=_("%(lang)s is not supported", lang=candidate_langs[0]))
 
             translated_file_path = argostranslatefiles.translate_file(src_lang.get_translation(tgt_lang), filepath)
             translated_filename = os.path.basename(translated_file_path)

pyproject.toml

@@ -48,7 +48,7 @@ dependencies = [
     "appdirs ==1.4.4",
     "APScheduler ==3.9.1",
     "translatehtml ==1.5.2",
-    "argos-translate-files ==1.1.4",
+    "argos-translate-files ==1.2.0",
     "itsdangerous ==2.1.2",
     "Werkzeug ==2.3.8",
     "requests ==2.31.0",