server: format code to flake8

33 files changed, 27 insertions, 78 deletions

diff --git a/server/.dockerignore b/server/.dockerignore
index 725fbe6..8c1667b 100644
--- a/server/.dockerignore
+++ b/server/.dockerignore
@@ -1,6 +1,5 @@
 # Linter configs
-.pylintrc
-mypy.ini
+setup.cfg
 
 # Python requirements files
 requirements.txt
diff --git a/server/.pylintrc b/server/.pylintrc
deleted file mode 100644
index 846bac6..0000000
--- a/server/.pylintrc
+++ /dev/null
@@ -1,37 +0,0 @@
-[basic]
-function-rgx=^_?[a-z_][a-z0-9_]{2,}$|^test_
-method-rgx=^[a-z_][a-z0-9_]{2,}$|^test_
-const-rgx=^[A-Z_]+$|^_[a-zA-Z_]*$
-good-names=ex,_,logger,i
-
-[variables]
-dummy-variables-rgx=_|dummy
-
-[format]
-max-line-length=79
-
-[messages control]
-reports=no
-disable=
-    # we're not java
-    missing-docstring,
-    broad-except,
-
-    # covered better by pycodestyle
-    bad-continuation,
-
-    # we're adults
-    redefined-builtin,
-    duplicate-code,
-    too-many-return-statements,
-    too-many-arguments,
-
-    # plain stupid
-    no-self-use,
-    too-few-public-methods
-
-[typecheck]
-generated-members=add|add_all
-
-[similarities]
-min-similarity-lines=5
diff --git a/server/mypy.ini b/server/setup.cfg
index a0300b7..2179081 100644
--- a/server/mypy.ini
+++ b/server/setup.cfg
@@ -1,3 +1,9 @@
+[flake8]
+filename = szurubooru/
+exclude = __pycache__
+ignore = F401, W503, W504
+max-line-length = 79
+
 [mypy]
 ignore_missing_imports = True
 follow_imports = skip
diff --git a/server/szurubooru/api/info_api.py b/server/szurubooru/api/info_api.py
index b072147..1e2fd1d 100644
--- a/server/szurubooru/api/info_api.py
+++ b/server/szurubooru/api/info_api.py
@@ -10,7 +10,7 @@ _cache_result = None  # type: Optional[int]
 
 
 def _get_disk_usage() -> int:
-    global _cache_time, _cache_result  # pylint: disable=global-statement
+    global _cache_time, _cache_result
     threshold = timedelta(hours=48)
     now = datetime.utcnow()
     if _cache_time and _cache_time > now - threshold:
diff --git a/server/szurubooru/config.py b/server/szurubooru/config.py
index e9962a7..72a24b6 100644
--- a/server/szurubooru/config.py
+++ b/server/szurubooru/config.py
@@ -56,4 +56,4 @@ def _read_config() -> Dict:
     return ret
 
 
-config = _read_config()  # pylint: disable=invalid-name
+config = _read_config()
diff --git a/server/szurubooru/db.py b/server/szurubooru/db.py
index 561b748..03bfaff 100644
--- a/server/szurubooru/db.py
+++ b/server/szurubooru/db.py
@@ -4,7 +4,7 @@ import sqlalchemy as sa
 import sqlalchemy.orm
 from szurubooru import config
 
-# pylint: disable=invalid-name
+
 _data = threading.local()
 _engine = sa.create_engine(config.config['database'])  # type: Any
 _sessionmaker = sa.orm.sessionmaker(bind=_engine, autoflush=False)  # type: Any
diff --git a/server/szurubooru/facade.py b/server/szurubooru/facade.py
index 7cac63c..d8d0b63 100644
--- a/server/szurubooru/facade.py
+++ b/server/szurubooru/facade.py
@@ -10,7 +10,6 @@ import sqlalchemy.orm.exc
 from szurubooru import config, db, errors, rest
 from szurubooru.func.posts import update_all_post_signatures
 from szurubooru.func.file_uploads import purge_old_uploads
-# pylint: disable=unused-import
 from szurubooru import api, middleware
 
 
@@ -147,4 +146,4 @@ def create_app() -> Callable[[Any, Any], Any]:
     return rest.application
 
 
-app = create_app()  # pylint: disable=invalid-name
+app = create_app()
diff --git a/server/szurubooru/func/auth.py b/server/szurubooru/func/auth.py
index 65be79a..504fe61 100644
--- a/server/szurubooru/func/auth.py
+++ b/server/szurubooru/func/auth.py
@@ -54,7 +54,7 @@ def create_password() -> str:
         'n': list('0123456789'),
     }
     pattern = 'cvcvnncvcv'
-    return ''.join(random.choice(alphabet[l]) for l in list(pattern))
+    return ''.join(random.choice(alphabet[type]) for type in list(pattern))
 
 
 def is_valid_password(user: model.User, password: str) -> bool:
diff --git a/server/szurubooru/func/image_hash.py b/server/szurubooru/func/image_hash.py
index da2cd75..771302d 100644
--- a/server/szurubooru/func/image_hash.py
+++ b/server/szurubooru/func/image_hash.py
@@ -7,7 +7,7 @@ import numpy as np
 from PIL import Image
 from szurubooru import config, errors
 
-# pylint: disable=invalid-name
+
 logger = logging.getLogger(__name__)
 
 # Math based on paper from H. Chi Wong, Marshall Bern and David Goldberg
@@ -242,7 +242,6 @@ def pack_signature(signature: NpMatrix) -> bytes:
     This is then converted into a more packed array consisting of
     uint32 elements (for SIG_CHUNK_BITS = 32).
     '''
-    base = 2 * N_LEVELS + 1
     coding_vector = np.flipud(SIG_BASE**np.arange(SIG_CHUNK_WIDTH))
     return np.array([
         np.dot(x, coding_vector) for x in
@@ -256,7 +255,6 @@ def unpack_signature(packed: bytes) -> NpMatrix:
 
     Functions as an inverse transformation of pack_signature()
     '''
-    base = 2 * N_LEVELS + 1
     return np.ravel(np.array([
         [
             int(digit) - N_LEVELS for digit in
diff --git a/server/szurubooru/func/mime.py b/server/szurubooru/func/mime.py
index 871a0a4..afab817 100644
--- a/server/szurubooru/func/mime.py
+++ b/server/szurubooru/func/mime.py
@@ -53,7 +53,8 @@ def is_video(mime_type: str) -> bool:
 
 
 def is_image(mime_type: str) -> bool:
-    return mime_type.lower() in ('image/jpeg', 'image/png', 'image/gif', 'image/webp')
+    return mime_type.lower() in (
+        'image/jpeg', 'image/png', 'image/gif', 'image/webp')
 
 
 def is_animated_gif(content: bytes) -> bool:
diff --git a/server/szurubooru/func/net.py b/server/szurubooru/func/net.py
index 17f4654..8110340 100644
--- a/server/szurubooru/func/net.py
+++ b/server/szurubooru/func/net.py
@@ -49,6 +49,6 @@ def _youtube_dl_wrapper(url: str) -> bytes:
     except YoutubeDLError as ex:
         raise errors.ThirdPartyError(
             'Error downloading video %s (%s)' % (url, ex))
-    except FileNotFoundError as ex:
+    except FileNotFoundError:
         raise errors.ThirdPartyError(
             'Error downloading video %s (file could not be saved)' % (url))
diff --git a/server/szurubooru/func/posts.py b/server/szurubooru/func/posts.py
index d8e984b..e18656a 100644
--- a/server/szurubooru/func/posts.py
+++ b/server/szurubooru/func/posts.py
@@ -529,7 +529,7 @@ def update_all_post_signatures() -> None:
         .filter(
             (model.Post.type == model.Post.TYPE_IMAGE) |
             (model.Post.type == model.Post.TYPE_ANIMATION))
-        .filter(model.Post.signature == None)
+        .filter(model.Post.signature == None)  # noqa: E711
         .order_by(model.Post.post_id.asc())
         .all())
     for post in posts_to_hash:
diff --git a/server/szurubooru/func/snapshots.py b/server/szurubooru/func/snapshots.py
index 6646467..38d42a9 100644
--- a/server/szurubooru/func/snapshots.py
+++ b/server/szurubooru/func/snapshots.py
@@ -61,7 +61,6 @@ def get_post_snapshot(post: model.Post) -> Dict[str, Any]:
 
 _snapshot_factories = {
     # lambdas allow mocking target functions in the tests
-    # pylint: disable=unnecessary-lambda
     'tag_category': lambda entity: get_tag_category_snapshot(entity),
     'tag': lambda entity: get_tag_snapshot(entity),
     'post': lambda entity: get_post_snapshot(entity),
@@ -108,7 +107,6 @@ def create(entity: model.Base, auth_user: Optional[model.User]) -> None:
     db.session.add(snapshot)
 
 
-# pylint: disable=protected-access
 def modify(entity: model.Base, auth_user: Optional[model.User]) -> None:
     assert entity
 
diff --git a/server/szurubooru/func/util.py b/server/szurubooru/func/util.py
index 5e82286..1bf34fa 100644
--- a/server/szurubooru/func/util.py
+++ b/server/szurubooru/func/util.py
@@ -84,7 +84,7 @@ def is_valid_email(email: Optional[str]) -> bool:
     return not email or re.match(r'^[^@]*@[^@]*\.[^@]*$', email) is not None
 
 
-class dotdict(dict):  # pylint: disable=invalid-name
+class dotdict(dict):
     ''' dot.notation access to dictionary attributes. '''
     def __getattr__(self, attr: str) -> Any:
         return self.get(attr)
diff --git a/server/szurubooru/migrations/env.py b/server/szurubooru/migrations/env.py
index e7d512e..f0a06dd 100644
--- a/server/szurubooru/migrations/env.py
+++ b/server/szurubooru/migrations/env.py
@@ -10,8 +10,8 @@ from time import sleep
 dir_to_self = os.path.dirname(os.path.realpath(__file__))
 sys.path.append(os.path.join(dir_to_self, *[os.pardir] * 2))
 
-import szurubooru.model.base
-import szurubooru.config
+import szurubooru.model.base  # noqa: E402
+import szurubooru.config  # noqa: E402
 
 alembic_config = alembic.context.config
 logging.config.fileConfig(alembic_config.config_file_name)
diff --git a/server/szurubooru/migrations/versions/02ef5f73f4ab_add_hashes_to_post_file_names.py b/server/szurubooru/migrations/versions/02ef5f73f4ab_add_hashes_to_post_file_names.py
index c7e5d01..1e09e34 100644
--- a/server/szurubooru/migrations/versions/02ef5f73f4ab_add_hashes_to_post_file_names.py
+++ b/server/szurubooru/migrations/versions/02ef5f73f4ab_add_hashes_to_post_file_names.py
@@ -36,7 +36,7 @@ def downgrade():
                 entry.name)
             if match:
                 post_id = int(match.group('name'))
-                security_hash = match.group('hash')
+                security_hash = match.group('hash')  # noqa: F841
                 ext = match.group('ext')
                 new_name = '%s.%s' % (post_id, ext)
                 new_path = os.path.join(os.path.dirname(entry.path), new_name)
diff --git a/server/szurubooru/migrations/versions/1cd4c7b22846_change_flags_column_to_string.py b/server/szurubooru/migrations/versions/1cd4c7b22846_change_flags_column_to_string.py
index b450b1d..ce01751 100644
--- a/server/szurubooru/migrations/versions/1cd4c7b22846_change_flags_column_to_string.py
+++ b/server/szurubooru/migrations/versions/1cd4c7b22846_change_flags_column_to_string.py
@@ -29,7 +29,6 @@ def upgrade():
     for row in conn.execute(posts.select()):
         newflag = ','.join(row.oldflags) if row.oldflags else ''
         conn.execute(
-            # pylint: disable=no-value-for-parameter
             posts.update().where(
                 posts.c.id == row.id
             ).values(
@@ -53,7 +52,6 @@ def downgrade():
     for row in conn.execute(posts.select()):
         newflag = [x for x in row.oldflags.split(',') if x]
         conn.execute(
-            # pylint: disable=no-value-for-parameter
             posts.update().where(
                 posts.c.id == row.id
             ).values(
diff --git a/server/szurubooru/model/base.py b/server/szurubooru/model/base.py
index e61d35a..00ea8e1 100644
--- a/server/szurubooru/model/base.py
+++ b/server/szurubooru/model/base.py
@@ -1,4 +1,4 @@
 from sqlalchemy.ext.declarative import declarative_base
 
 
-Base = declarative_base()  # pylint: disable=invalid-name
+Base = declarative_base()
diff --git a/server/szurubooru/rest/errors.py b/server/szurubooru/rest/errors.py
index f90ac25..45dc615 100644
--- a/server/szurubooru/rest/errors.py
+++ b/server/szurubooru/rest/errors.py
@@ -1,7 +1,7 @@
 from typing import Optional, Callable, Type, Dict
 
 
-error_handlers = {}  # pylint: disable=invalid-name
+error_handlers = {}
 
 
 class BaseHttpError(RuntimeError):
diff --git a/server/szurubooru/rest/middleware.py b/server/szurubooru/rest/middleware.py
index ce457e0..18b6b46 100644
--- a/server/szurubooru/rest/middleware.py
+++ b/server/szurubooru/rest/middleware.py
@@ -2,7 +2,6 @@ from typing import List, Callable
 from szurubooru.rest.context import Context
 
 
-# pylint: disable=invalid-name
 pre_hooks = []  # type: List[Callable[[Context], None]]
 post_hooks = []  # type: List[Callable[[Context], None]]
 
diff --git a/server/szurubooru/rest/routes.py b/server/szurubooru/rest/routes.py
index 569cbe1..93e124e 100644
--- a/server/szurubooru/rest/routes.py
+++ b/server/szurubooru/rest/routes.py
@@ -3,7 +3,6 @@ from collections import defaultdict
 from szurubooru.rest.context import Context, Response
 
 
-# pylint: disable=invalid-name
 RouteHandler = Callable[[Context, Dict[str, str]], Response]
 routes = defaultdict(dict)  # type: Dict[str, Dict[str, RouteHandler]]
 
diff --git a/server/szurubooru/search/configs/post_search_config.py b/server/szurubooru/search/configs/post_search_config.py
index 281826f..dcf0255 100644
--- a/server/szurubooru/search/configs/post_search_config.py
+++ b/server/szurubooru/search/configs/post_search_config.py
@@ -80,8 +80,7 @@ def _user_filter(
     assert criterion
     if isinstance(criterion, criteria.PlainCriterion) \
             and not criterion.value:
-        # pylint: disable=singleton-comparison
-        expr = model.Post.user_id == None
+        expr = model.Post.user_id == None  # noqa: E711
         if negated:
             expr = ~expr
         return query.filter(expr)
diff --git a/server/szurubooru/search/configs/util.py b/server/szurubooru/search/configs/util.py
index 9c4d3ae..ee201a2 100644
--- a/server/szurubooru/search/configs/util.py
+++ b/server/szurubooru/search/configs/util.py
@@ -17,7 +17,7 @@ def unescape(text: str, make_wildcards_special: bool = False) -> str:
     while i < len(text):
         if text[i] == '\\':
             try:
-                char = text[i+1]
+                char = text[i + 1]
                 i += 1
             except IndexError:
                 raise errors.SearchError(
diff --git a/server/szurubooru/tests/conftest.py b/server/szurubooru/tests/conftest.py
index 13b1c00..c776601 100644
--- a/server/szurubooru/tests/conftest.py
+++ b/server/szurubooru/tests/conftest.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 import contextlib
 import os
 import random
@@ -39,7 +38,7 @@ def query_logger(pytestconfig):
 
 
 @pytest.yield_fixture(scope='function', autouse=True)
-def session(query_logger, postgresql_db):  # pylint: disable=unused-argument
+def session(query_logger, postgresql_db):
     db.session = postgresql_db.session
     postgresql_db.create_table(*model.Base.metadata.sorted_tables)
     try:
@@ -141,7 +140,6 @@ def tag_factory():
 
 @pytest.fixture
 def post_factory():
-    # pylint: disable=invalid-name
     def factory(
             id=None,
             safety=model.Post.SAFETY_SAFE,
diff --git a/server/szurubooru/tests/func/test_util.py b/server/szurubooru/tests/func/test_util.py
index 24fe4e4..1307ab9 100644
--- a/server/szurubooru/tests/func/test_util.py
+++ b/server/szurubooru/tests/func/test_util.py
@@ -4,7 +4,7 @@ from szurubooru import errors
 from szurubooru.func import util
 
 
-dt = datetime  # pylint: disable=invalid-name
+dt = datetime
 
 
 def test_parsing_empty_date_time():
diff --git a/server/szurubooru/tests/model/test_post.py b/server/szurubooru/tests/model/test_post.py
index 75bcbae..47c088d 100644
--- a/server/szurubooru/tests/model/test_post.py
+++ b/server/szurubooru/tests/model/test_post.py
@@ -50,7 +50,6 @@ def test_saving_post(post_factory, user_factory, tag_factory):
     assert len(related_post2.relations) == 0
 
 
-# pylint: disable=too-many-statements
 def test_cascade_deletions(
         post_factory, user_factory, tag_factory, comment_factory):
     user = user_factory()
diff --git a/server/szurubooru/tests/model/test_user.py b/server/szurubooru/tests/model/test_user.py
index 08875fa..ced3a5e 100644
--- a/server/szurubooru/tests/model/test_user.py
+++ b/server/szurubooru/tests/model/test_user.py
@@ -111,7 +111,6 @@ def test_disliked_post_count(user_factory, post_factory):
     assert user1.disliked_post_count == 1
 
 
-# pylint: disable=too-many-statements
 def test_cascade_deletions(post_factory, user_factory, comment_factory):
     user = user_factory()
 
diff --git a/server/szurubooru/tests/rest/test_context.py b/server/szurubooru/tests/rest/test_context.py
index 34cf7ac..0de1e32 100644
--- a/server/szurubooru/tests/rest/test_context.py
+++ b/server/szurubooru/tests/rest/test_context.py
@@ -1,4 +1,3 @@
-# pylint: disable=unexpected-keyword-arg
 import unittest.mock
 import pytest
 from szurubooru import rest, errors
diff --git a/server/szurubooru/tests/search/configs/test_comment_search_config.py b/server/szurubooru/tests/search/configs/test_comment_search_config.py
index 109629b..7279c1b 100644
--- a/server/szurubooru/tests/search/configs/test_comment_search_config.py
+++ b/server/szurubooru/tests/search/configs/test_comment_search_config.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 from datetime import datetime
 import pytest
 from szurubooru import db, search
diff --git a/server/szurubooru/tests/search/configs/test_pool_search_config.py b/server/szurubooru/tests/search/configs/test_pool_search_config.py
index 730511a..731a676 100644
--- a/server/szurubooru/tests/search/configs/test_pool_search_config.py
+++ b/server/szurubooru/tests/search/configs/test_pool_search_config.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 from datetime import datetime
 import pytest
 from szurubooru import db, errors, search
diff --git a/server/szurubooru/tests/search/configs/test_post_search_config.py b/server/szurubooru/tests/search/configs/test_post_search_config.py
index 4d541d1..462594c 100644
--- a/server/szurubooru/tests/search/configs/test_post_search_config.py
+++ b/server/szurubooru/tests/search/configs/test_post_search_config.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 from datetime import datetime
 import pytest
 from szurubooru import db, model, errors, search
diff --git a/server/szurubooru/tests/search/configs/test_tag_search_config.py b/server/szurubooru/tests/search/configs/test_tag_search_config.py
index d3d2de3..09a4c40 100644
--- a/server/szurubooru/tests/search/configs/test_tag_search_config.py
+++ b/server/szurubooru/tests/search/configs/test_tag_search_config.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 from datetime import datetime
 import pytest
 from szurubooru import db, errors, search
diff --git a/server/szurubooru/tests/search/configs/test_user_search_config.py b/server/szurubooru/tests/search/configs/test_user_search_config.py
index c4d9402..e9cea5a 100644
--- a/server/szurubooru/tests/search/configs/test_user_search_config.py
+++ b/server/szurubooru/tests/search/configs/test_user_search_config.py
@@ -1,4 +1,3 @@
-# pylint: disable=redefined-outer-name
 from datetime import datetime
 import pytest
 from szurubooru import db, errors, search