Use package.version for model version comparison

Change `--install-models` to `--force-update-models`

libretranslate/app.py

@@ -125,7 +125,7 @@ def get_routes_limits(default_req_limit, daily_req_limit, api_keys_db):
 def create_app(args):
     from libretranslate.init import boot
 
-    boot(args.load_only, args.update_models, args.install_models)
+    boot(args.load_only, args.update_models, args.force_update_models)
 
     from libretranslate.language import load_languages
 

libretranslate/default_values.py

@@ -172,7 +172,7 @@ _default_options_objects = [
         'value_type': 'bool'
     },
     {
-        'name': 'INSTALL_MODELS',
+        'name': 'FORCE_UPDATE_MODELS',
         'default_value': False,
         'value_type': 'bool'
     },

libretranslate/init.py

@@ -1,5 +1,6 @@
 
 from argostranslate import package, translate
+from packaging import version
 
 import libretranslate.language
 
@@ -55,7 +56,7 @@ def check_and_install_models(force=False, load_only_lang_codes=None,update=False
                             and pack.to_code == available_package.to_code
                         ):
                         update = True
-                        if pack.package_version < available_package.package_version:
+                        if version.parse(pack.package_version) < version.parse(available_package.package_version):
                             print(
                                 f"Updating {available_package} ({pack.package_version}->{available_package.package_version}) ..."
                             )

libretranslate/main.py

@@ -161,7 +161,7 @@ def get_args():
         "--update-models", default=DEFARGS['UPDATE_MODELS'], action="store_true", help="Update language models at startup"
     )
     parser.add_argument(
-        "--install-models", default=DEFARGS['INSTALL_MODELS'], action="store_true", help="Install language models at startup"
+        "--force-update-models", default=DEFARGS['FORCE_UPDATE_MODELS'], action="store_true", help="Install/Reinstall language models at startup"
     )
     parser.add_argument(
         "--metrics",

pyproject.toml

@@ -54,6 +54,7 @@ dependencies = [
     "redis ==4.3.4",
     "prometheus-client ==0.15.0",
     "polib ==1.1.1",
+    "packaging ==23.1"
 ]
 
 [project.scripts]