Adding ruff validation to the project

.dockerignore

@@ -19,4 +19,6 @@ venv/
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
-*.code-workspace
+*.code-workspace
+
+venv/

.github/workflows/ruff.yml

@@ -0,0 +1,10 @@
+name: Ruff
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        with:
+            src: './src'

Dockerfile

@@ -4,17 +4,18 @@ FROM python:3.12-alpine
 # Install MySQL and PostgreSQL client libraries
 RUN apk update && apk add --no-cache \
     mariadb-connector-c-dev \
-    postgresql-dev python3-dev musl-dev
+    postgresql-dev python3-dev musl-dev git
 
 # Install Tox
 RUN pip install tox
-RUN tox -e dev
 
 # Set the working directory
 WORKDIR /app
 
 # Copy the project files to the working directory
 COPY . /app
 
+RUN tox -e dev
+
 # Set the entrypoint command
 CMD ["tox"]

docs/source/conf.py

@@ -19,7 +19,6 @@
 
 autoclass_content = "both"
 
-import cities_light
 
 
 # -- Project information -----------------------------------------------------

ruff.toml

@@ -0,0 +1,77 @@
+# Exclude a variety of commonly ignored directories.
+exclude = [
+    ".bzr",
+    ".direnv",
+    ".eggs",
+    ".git",
+    ".git-rewrite",
+    ".hg",
+    ".ipynb_checkpoints",
+    ".mypy_cache",
+    ".nox",
+    ".pants.d",
+    ".pyenv",
+    ".pytest_cache",
+    ".pytype",
+    ".ruff_cache",
+    ".svn",
+    ".tox",
+    ".venv",
+    ".vscode",
+    "__pypackages__",
+    "_build",
+    "buck-out",
+    "build",
+    "dist",
+    "node_modules",
+    "site-packages",
+    "venv",
+]
+
+# Same as Black.
+line-length = 88
+indent-width = 4
+
+# Assume Python 3.8
+target-version = "py39"
+
+[lint]
+# Enable Pyflakes (`F`) and a subset of the pycodestyle (`E`)  codes by default.
+# Unlike Flake8, Ruff doesn't enable pycodestyle warnings (`W`) or
+# McCabe complexity (`C901`) by default.
+select = ["E4", "E7", "E9", "F"]
+ignore = []
+
+# Allow fix for all enabled rules (when `--fix`) is provided.
+fixable = ["ALL"]
+unfixable = []
+
+# Allow unused variables when underscore-prefixed.
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+[format]
+# Like Black, use double quotes for strings.
+quote-style = "double"
+
+# Like Black, indent with spaces, rather than tabs.
+indent-style = "space"
+
+# Like Black, respect magic trailing commas.
+skip-magic-trailing-comma = false
+
+# Like Black, automatically detect the appropriate line ending.
+line-ending = "auto"
+
+# Enable auto-formatting of code examples in docstrings. Markdown,
+# reStructuredText code/literal blocks and doctests are all supported.
+#
+# This is currently disabled by default, but it is planned for this
+# to be opt-out in the future.
+docstring-code-format = false
+
+# Set the line length limit used when formatting code snippets in
+# docstrings.
+#
+# This only has an effect when the `docstring-code-format` setting is
+# enabled.
+docstring-code-line-length = "dynamic"

src/cities_light/__init__.py

@@ -1,6 +1,15 @@
-from .signals import *
-from .exceptions import *
-from .settings import *
+from .signals import country_items_pre_import, country_items_post_import, \
+    region_items_pre_import, region_items_post_import, \
+    subregion_items_pre_import, subregion_items_post_import, \
+    city_items_pre_import, city_items_post_import, \
+    translation_items_pre_import  # noqa: F401
+from .exceptions import CitiesLightException, InvalidItems, SourceFileDoesNotExist   # noqa: F401
+from .settings import FIXTURES_BASE_URL, COUNTRY_SOURCES, REGION_SOURCES, \
+    SUBREGION_SOURCES, CITY_SOURCES, TRANSLATION_LANGUAGES, \
+    TRANSLATION_SOURCES, SOURCES, DATA_DIR, INDEX_SEARCH_NAMES, \
+    INCLUDE_COUNTRIES, INCLUDE_CITY_TYPES, DEFAULT_APP_NAME, \
+    CITIES_LIGHT_APP_NAME, ICountry, IRegion, ISubRegion, ICity, \
+    IAlternate   # noqa: F401
 from . import version
 
 __version__ = version.version

src/cities_light/geonames.py

@@ -2,7 +2,7 @@
 import zipfile
 import logging
 
-from .settings import *
+from .settings import DATA_DIR
 from .downloader import Downloader
 
 

src/cities_light/management/commands/cities_light.py

@@ -6,13 +6,8 @@
 from argparse import RawTextHelpFormatter
 import sys
 
-if sys.platform != 'win32':
-    import resource
-
-try:
-    import cPickle as pickle
-except ImportError:
-    import pickle
+import resource
+import pickle
 
 from django.conf import settings
 from django.db import transaction, connection
@@ -22,9 +17,19 @@
 
 import progressbar
 
-from ...exceptions import *
-from ...signals import *
-from ...settings import *
+from ...settings import (
+    COUNTRY_SOURCES, REGION_SOURCES, SUBREGION_SOURCES, CITY_SOURCES,
+    TRANSLATION_SOURCES, DATA_DIR, TRANSLATION_LANGUAGES,
+    ICountry, IRegion, ISubRegion, ICity, IAlternate
+)
+from ...signals import (
+    country_items_pre_import, region_items_pre_import,
+    subregion_items_pre_import, city_items_pre_import,
+    translation_items_pre_import, country_items_post_import,
+    region_items_post_import, subregion_items_post_import,
+    city_items_post_import
+)
+from ...exceptions import InvalidItems
 from ...geonames import Geonames
 from ...loading import get_cities_models
 from ...validators import timezone_validator

src/cities_light/migrations/0002_city.py

@@ -1,6 +1,5 @@
 from django.db import models, migrations
 import autoslug.fields
-import cities_light.models
 from cities_light.settings import INDEX_SEARCH_NAMES
 
 

src/cities_light/migrations/0003_auto_20141120_0342.py

@@ -1,5 +1,5 @@
-from django.db import models, migrations
-import cities_light.models
+from django.db import migrations
+from cities_light.abstract_models import ToSearchTextField
 
 from cities_light.settings import INDEX_SEARCH_NAMES
 
@@ -14,7 +14,7 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='city',
             name='search_names',
-            field=cities_light.models.ToSearchTextField(default=b'', max_length=4000, db_index=INDEX_SEARCH_NAMES, blank=True),
+            field=ToSearchTextField(default=b'', max_length=4000, db_index=INDEX_SEARCH_NAMES, blank=True),
             preserve_default=True,
         ),
     ]

src/cities_light/migrations/0004_autoslug_update.py

@@ -1,4 +1,4 @@
-from django.db import models, migrations
+from django.db import migrations
 import autoslug.fields
 
 

src/cities_light/migrations/0006_compensate_for_0003_bytestring_bug.py

@@ -1,4 +1,4 @@
-from django.db import migrations, models
+from django.db import migrations
 import cities_light.abstract_models
 
 from cities_light.settings import INDEX_SEARCH_NAMES

src/cities_light/models.py

@@ -83,17 +83,12 @@ def set_city_fields(sender, instance, items, **kwargs):
 from .abstract_models import (AbstractCountry, AbstractRegion,
                               AbstractSubRegion, AbstractCity,
                               CONTINENT_CHOICES,
-                              ToSearchTextField, to_search, to_ascii)
+                              to_search, to_ascii)
 
-from .signals import *
-from .receivers import *
-from .settings import *
+from .receivers import connect_default_signals
+from .settings import CITIES_LIGHT_APP_NAME, DEFAULT_APP_NAME
 
-__all__ = ['CONTINENT_CHOICES', 'to_search', 'to_ascii', 'filter_non_cities',
-           'filter_non_included_countries_country',
-           'filter_non_included_countries_region',
-           'filter_non_included_countries_subregion',
-           'filter_non_included_countries_city']
+__all__ = ['CONTINENT_CHOICES', 'to_search', 'to_ascii']
 
 if CITIES_LIGHT_APP_NAME == DEFAULT_APP_NAME:
     class Country(AbstractCountry):

src/cities_light/receivers.py

@@ -1,8 +1,11 @@
 from django.db.models import signals
 from .abstract_models import to_ascii, to_search
-from .settings import *
-from .signals import *
-from .exceptions import *
+from .settings import INCLUDE_CITY_TYPES, INCLUDE_COUNTRIES
+from .signals import (
+    city_items_pre_import, country_items_pre_import, region_items_pre_import,
+    subregion_items_pre_import
+)
+from .exceptions import InvalidItems
 
 
 def set_name_ascii(sender, instance=None, **kwargs):

src/cities_light/tests/test_downloader.py

@@ -9,7 +9,6 @@
 from cities_light.downloader import Downloader
 from cities_light.exceptions import SourceFileDoesNotExist
 
-import builtins as b  # do not remove
 
 
 class TestDownloader(test.TransactionTestCase):
@@ -146,7 +145,7 @@ def test_download_calls_source_matches_destination(self, m_check):
         m_check.return_value = True
         downloader = Downloader()
         source = 'file:///a.txt'
-        destination = '/a.txt'
+        destination = '/tmp/a.txt'
         # The downloader.download will return false
         # as source and destination are same
         # The downloader.source_matches_destination will return
@@ -168,7 +167,7 @@ def test_download_calls_needs_downloading(self, m_check, m_need):
         m_need.return_value = False
         downloader = Downloader()
         source = 'file:///a.txt'
-        destination = '/a.txt'
+        destination = '/tmp/a.txt'
         # Here dowaloder.needs_downloading() will return false
         # as the time of modifiaction of dest>= time of source
         # and the size od source and destination are same
@@ -191,33 +190,31 @@ def test_download(self, m_check, m_need):
         m_need.return_value = True
         downloader = Downloader()
         source = 'file:///b.txt'
-        destination = '/a.txt'
+        destination = '/tmp/a.txt'
 
         tmpfile = tempfile.SpooledTemporaryFile(max_size=1024000, mode='wb')
         tmpfile.write(b'source content')
         tmpfile.seek(0)
 
+        mock_open = mock.mock_open()
         with mock.patch('cities_light.downloader.urlopen',
-                        return_value=tmpfile):
-            module_name = '{}.b.open'.format(__name__)
-            mock_open = mock.mock_open()
-            # The downoader.needs_downloading will return true and last three
-            # lines of downloader.download will copy the source to sestination
-            with mock.patch(module_name, mock_open):
-                self.assertTrue(downloader.download(
-                    source,
-                    destination,
-                    False))
-                handle = mock_open()
-                handle.write.assert_called_once_with(b'source content')
+                        return_value=tmpfile), mock.patch('cities_light.downloader.open', mock_open):
+            # The downloader.needs_downloading will return true and last three
+            # lines of downloader.download will copy the source to destination
+            self.assertTrue(downloader.download(
+                source,
+                destination,
+                False))
+            handle = mock_open()
+            handle.write.assert_called_once_with(b'source content')
 
     def test_not_download(self):
         """Tests actual not download."""
         with mock.patch.object(Downloader, 'source_matches_destination') as m:
             m.return_value = True
             downloader = Downloader()
             source = 'file:///b.txt'
-            destination = '/a.txt'
+            destination = '/tmp/a.txt'
             with mock.patch('cities_light.downloader.urlopen') as uo_mock:
                 downloader.download(source, destination)
                 uo_mock.assert_not_called()

src/cities_light/tests/test_migrations.py

@@ -1,19 +1,21 @@
 import unittest
-
 from django import test
 from django.apps import apps
 from django.db.migrations.autodetector import MigrationAutodetector
 from django.db.migrations.loader import MigrationLoader
 from django.db.migrations.questioner import (
     InteractiveMigrationQuestioner, )
 from django.db.migrations.state import ProjectState
+import logging
 
+logger = logging.getLogger(__name__)
 
 class TestNoMigrationLeft(test.TestCase):
     @unittest.skip("TODO: make the test pass")
     def test_no_migration_left(self):
         loader = MigrationLoader(None, ignore_no_migrations=True)
         conflicts = loader.detect_conflicts()
+        logger.error(conflicts)
         app_labels = ['cities_light']
 
         autodetector = MigrationAutodetector(

test_project/manage.py

@@ -7,16 +7,9 @@
     try:
         from django.core.management import execute_from_command_line
     except ImportError:
-        # The above import may fail for some other reason. Ensure that the
-        # issue is really that Django is missing to avoid masking other
-        # exceptions on Python 2.
-        try:
-            import django
-        except ImportError:
-            raise ImportError(
-                "Couldn't import Django. Are you sure it's installed and "
-                "available on your PYTHONPATH environment variable? Did you "
-                "forget to activate a virtual environment?"
-            )
-        raise
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        )
     execute_from_command_line(sys.argv)