More ruff checks, and make it fix

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
     rev: v0.1.5
     hooks:
       - id: ruff
+        args: ["--fix"]
       - id: ruff-format
-        args: ["--check"]
 
 exclude: ^pelican/tests/output/

pelican/__init__.py

@@ -19,10 +19,10 @@ __path__ = extend_path(__path__, __name__)
 
 # pelican.log has to be the first pelican module to be loaded
 # because logging.setLoggerClass has to be called before logging.getLogger
-from pelican.log import console
+from pelican.log import console  # noqa: I001
 from pelican.log import init as init_logging
 from pelican.generators import (
-    ArticlesGenerator,  # noqa: I100
+    ArticlesGenerator,
     PagesGenerator,
     SourceFileGenerator,
     StaticGenerator,
@@ -344,8 +344,8 @@ def parse_arguments(argv=None):
         "--settings",
         dest="settings",
         help="The settings of the application, this is "
-        "automatically set to {} if a file exists with this "
-        "name.".format(DEFAULT_CONFIG_NAME),
+        f"automatically set to {DEFAULT_CONFIG_NAME} if a file exists with this "
+        "name.",
     )
 
     parser.add_argument(

pelican/__main__.py

@@ -4,6 +4,5 @@ python -m pelican module entry point to run via python -m
 
 from . import main
 
-
 if __name__ == "__main__":
     main()

pelican/contents.py

@@ -16,6 +16,9 @@ except ModuleNotFoundError:
 
 from pelican.plugins import signals
 from pelican.settings import DEFAULT_CONFIG
+
+# Import these so that they're available when you import from pelican.contents.
+from pelican.urlwrappers import Author, Category, Tag, URLWrapper  # NOQA
 from pelican.utils import (
     deprecated_attribute,
     memoized,
@@ -27,9 +30,6 @@ from pelican.utils import (
     truncate_html_words,
 )
 
-# Import these so that they're available when you import from pelican.contents.
-from pelican.urlwrappers import Author, Category, Tag, URLWrapper  # NOQA
-
 logger = logging.getLogger(__name__)
 
 
@@ -361,13 +361,13 @@ class Content:
 
     def _get_intrasite_link_regex(self):
         intrasite_link_regex = self.settings["INTRASITE_LINK_REGEX"]
-        regex = r"""
+        regex = rf"""
             (?P<markup><[^\>]+  # match tag with all url-value attributes
                 (?:href|src|poster|data|cite|formaction|action|content)\s*=\s*)
 
             (?P<quote>["\'])      # require value to be quoted
-            (?P<path>{}(?P<value>.*?))  # the url value
-            (?P=quote)""".format(intrasite_link_regex)
+            (?P<path>{intrasite_link_regex}(?P<value>.*?))  # the url value
+            (?P=quote)"""
         return re.compile(regex, re.X)
 
     def _update_content(self, content, siteurl):
@@ -456,7 +456,6 @@ class Content:
     @summary.setter
     def summary(self, value):
         """Dummy function"""
-        pass
 
     @property
     def status(self):

pelican/log.py

@@ -4,7 +4,7 @@ from collections import defaultdict
 from rich.console import Console
 from rich.logging import RichHandler
 
-__all__ = ["init"]
+__all__ = ["init", "console"]
 
 console = Console()
 

pelican/plugins/_utils.py

@@ -6,7 +6,6 @@ import logging
 import pkgutil
 import sys
 
-
 logger = logging.getLogger(__name__)
 
 

pelican/plugins/signals.py

@@ -1,4 +1,4 @@
-from blinker import signal, Signal
+from blinker import Signal, signal
 from ordered_set import OrderedSet
 
 # Signals will call functions in the order of connection, i.e. plugin order

pelican/readers.py

@@ -22,7 +22,7 @@ from pelican.utils import get_date, pelican_open, posixize_path
 try:
     from markdown import Markdown
 except ImportError:
-    Markdown = False  # NOQA
+    Markdown = False
 
 # Metadata processors have no way to discard an unwanted value, so we have
 # them return this value instead to signal that it should be discarded later.
@@ -607,8 +607,8 @@ class Readers(FileStampDataCacher):
 
         # eventually filter the content with typogrify if asked so
         if self.settings["TYPOGRIFY"]:
-            from typogrify.filters import typogrify
             import smartypants
+            from typogrify.filters import typogrify
 
             typogrify_dashes = self.settings["TYPOGRIFY_DASHES"]
             if typogrify_dashes == "oldschool":

pelican/rstdirectives.py

@@ -2,7 +2,6 @@ import re
 
 from docutils import nodes, utils
 from docutils.parsers.rst import Directive, directives, roles
-
 from pygments import highlight
 from pygments.formatters import HtmlFormatter
 from pygments.lexers import TextLexer, get_lexer_by_name

pelican/settings.py

@@ -260,9 +260,7 @@ def _printf_s_to_format_field(printf_string, format_field):
     TEST_STRING = "PELICAN_PRINTF_S_DEPRECATION"
     expected = printf_string % TEST_STRING
 
-    result = printf_string.replace("{", "{{").replace("}", "}}") % "{{{}}}".format(
-        format_field
-    )
+    result = printf_string.replace("{", "{{").replace("}", "}}") % f"{{{format_field}}}"
     if result.format(**{format_field: TEST_STRING}) != expected:
         raise ValueError(f"Failed to safely replace %s with {{{format_field}}}")
 
@@ -405,7 +403,7 @@ def handle_deprecated_settings(settings):
         )
         logger.warning(message)
         if old_values.get("SLUG"):
-            for f in {"CATEGORY", "TAG"}:
+            for f in ("CATEGORY", "TAG"):
                 if old_values.get(f):
                     old_values[f] = old_values["SLUG"] + old_values[f]
             old_values["AUTHOR"] = old_values.get("AUTHOR", [])

pelican/tests/build_test/test_build_files.py

@@ -1,6 +1,6 @@
-from re import match
 import tarfile
 from pathlib import Path
+from re import match
 from zipfile import ZipFile
 
 import pytest

pelican/tests/support.py

@@ -261,9 +261,7 @@ class LoggedTestCase(unittest.TestCase):
         self.assertEqual(
             actual,
             count,
-            msg="expected {} occurrences of {!r}, but found {}".format(
-                count, msg, actual
-            ),
+            msg=f"expected {count} occurrences of {msg!r}, but found {actual}",
         )
 
 

pelican/tests/test_cache.py

@@ -6,7 +6,6 @@ from unittest.mock import MagicMock
 from pelican.generators import ArticlesGenerator, PagesGenerator
 from pelican.tests.support import get_context, get_settings, unittest
 
-
 CUR_DIR = os.path.dirname(__file__)
 CONTENT_DIR = os.path.join(CUR_DIR, "content")
 

pelican/tests/test_contents.py

@@ -13,7 +13,6 @@ from pelican.settings import DEFAULT_CONFIG
 from pelican.tests.support import LoggedTestCase, get_context, get_settings, unittest
 from pelican.utils import path_to_url, posixize_path, truncate_html_words
 
-
 # generate one paragraph, enclosed with <p>
 TEST_CONTENT = str(generate_lorem_ipsum(n=1))
 TEST_SUMMARY = generate_lorem_ipsum(n=1, html=False)
@@ -297,7 +296,6 @@ class TestPage(TestBase):
     def test_signal(self):
         def receiver_test_function(sender):
             receiver_test_function.has_been_called = True
-            pass
 
         receiver_test_function.has_been_called = False
 

pelican/tests/test_generators.py

@@ -13,11 +13,11 @@ from pelican.generators import (
     TemplatePagesGenerator,
 )
 from pelican.tests.support import (
+    TestCaseWithCLocale,
     can_symlink,
     get_context,
     get_settings,
     unittest,
-    TestCaseWithCLocale,
 )
 from pelican.writers import Writer
 

pelican/tests/test_importer.py

@@ -5,11 +5,11 @@ from unittest.mock import patch
 
 from pelican.settings import DEFAULT_CONFIG
 from pelican.tests.support import (
+    TestCaseWithCLocale,
     mute,
     skipIfNoExecutable,
     temporary_folder,
     unittest,
-    TestCaseWithCLocale,
 )
 from pelican.tools.pelican_import import (
     blogger2fields,
@@ -37,7 +37,7 @@ WORDPRESS_DECODED_CONTENT_SAMPLE = os.path.join(
 try:
     from bs4 import BeautifulSoup
 except ImportError:
-    BeautifulSoup = False  # NOQA
+    BeautifulSoup = False
 
 try:
     import bs4.builder._lxml as LXML
@@ -528,9 +528,7 @@ class TestWordpressXMLAttachements(TestCaseWithCLocale):
                 self.assertEqual(self.attachments[post], {expected_invalid})
             else:
                 self.fail(
-                    "all attachments should match to a " "filename or None, {}".format(
-                        post
-                    )
+                    "all attachments should match to a " f"filename or None, {post}"
                 )
 
     def test_download_attachments(self):

pelican/tests/test_paginator.py

@@ -7,7 +7,6 @@ from pelican.paginator import Paginator
 from pelican.settings import DEFAULT_CONFIG
 from pelican.tests.support import get_settings, unittest
 
-
 # generate one paragraph, enclosed with <p>
 TEST_CONTENT = str(generate_lorem_ipsum(n=1))
 TEST_SUMMARY = generate_lorem_ipsum(n=1, html=False)

pelican/tests/test_plugins.py

@@ -1,7 +1,6 @@
 import os
 from contextlib import contextmanager
 
-import pelican.tests.dummy_plugins.normal_plugin.normal_plugin as normal_plugin
 from pelican.plugins._utils import (
     get_namespace_plugins,
     get_plugin_name,
@@ -9,6 +8,7 @@ from pelican.plugins._utils import (
     plugin_enabled,
 )
 from pelican.plugins.signals import signal
+from pelican.tests.dummy_plugins.normal_plugin import normal_plugin
 from pelican.tests.support import unittest
 
 

pelican/tests/test_readers.py

@@ -5,7 +5,6 @@ from pelican import readers
 from pelican.tests.support import get_settings, unittest
 from pelican.utils import SafeDatetime
 
-
 CUR_DIR = os.path.dirname(__file__)
 CONTENT_PATH = os.path.join(CUR_DIR, "content")
 

pelican/tests/test_settings.py

@@ -3,7 +3,6 @@ import locale
 import os
 from os.path import abspath, dirname, join
 
-
 from pelican.settings import (
     DEFAULT_CONFIG,
     DEFAULT_THEME,

pelican/tools/pelican_import.py

@@ -20,7 +20,6 @@ from pelican.log import init
 from pelican.settings import DEFAULT_CONFIG
 from pelican.utils import SafeDatetime, slugify
 
-
 logger = logging.getLogger(__name__)
 
 

pelican/tools/pelican_quickstart.py

@@ -168,7 +168,7 @@ def ask_timezone(question, default, tzurl):
             r = tz_dict[r]
             break
         else:
-            print("Please enter a valid time zone:\n" " (check [{}])".format(tzurl))
+            print("Please enter a valid time zone:\n" f" (check [{tzurl}])")
     return r
 
 
@@ -204,14 +204,14 @@ def main():
     args = parser.parse_args()
 
     print(
-        """Welcome to pelican-quickstart v{v}.
+        f"""Welcome to pelican-quickstart v{__version__}.
 
 This script will help you create a new Pelican-based website.
 
 Please answer the following questions so this script can generate the files
 needed by Pelican.
 
-    """.format(v=__version__)
+    """
     )
 
     project = os.path.join(os.environ.get("VIRTUAL_ENV", os.curdir), ".project")

pelican/tools/pelican_themes.py

@@ -240,15 +240,11 @@ def install(path, v=False, u=False):
                 except OSError as e:
                     err(
                         "Cannot change permissions of files "
-                        "or directory in `{r}':\n{e}".format(r=theme_path, e=str(e)),
+                        f"or directory in `{theme_path}':\n{e!s}",
                         die=False,
                     )
             except Exception as e:
-                err(
-                    "Cannot copy `{p}' to `{t}':\n{e}".format(
-                        p=path, t=theme_path, e=str(e)
-                    )
-                )
+                err(f"Cannot copy `{path}' to `{theme_path}':\n{e!s}")
 
 
 def symlink(path, v=False):
@@ -268,11 +264,7 @@ def symlink(path, v=False):
             try:
                 os.symlink(path, theme_path)
             except Exception as e:
-                err(
-                    "Cannot link `{p}' to `{t}':\n{e}".format(
-                        p=path, t=theme_path, e=str(e)
-                    )
-                )
+                err(f"Cannot link `{path}' to `{theme_path}':\n{e!s}")
 
 
 def is_broken_link(path):

pelican/urlwrappers.py

@@ -98,7 +98,7 @@ class URLWrapper:
         return self.name
 
     def __repr__(self):
-        return f"<{type(self).__name__} {repr(self._name)}>"
+        return f"<{type(self).__name__} {self._name!r}>"
 
     def _from_settings(self, key, get_page_name=False):
         """Returns URL information as defined in settings.

pelican/utils.py

@@ -23,10 +23,8 @@ try:
     from zoneinfo import ZoneInfo
 except ModuleNotFoundError:
     from backports.zoneinfo import ZoneInfo
-from markupsafe import Markup
-
 import watchfiles
-
+from markupsafe import Markup
 
 logger = logging.getLogger(__name__)
 
@@ -233,6 +231,7 @@ def slugify(value, regex_subs=(), preserve_case=False, use_unicode=False):
     """
 
     import unicodedata
+
     import unidecode
 
     def normalize_unicode(text):
@@ -630,14 +629,14 @@ def process_translations(content_list, translation_id=None):
         content_list.sort(key=attrgetter(*translation_id))
     except TypeError:
         raise TypeError(
-            "Cannot unpack {}, 'translation_id' must be falsy, a"
-            " string or a collection of strings".format(translation_id)
+            f"Cannot unpack {translation_id}, 'translation_id' must be falsy, a"
+            " string or a collection of strings"
         )
     except AttributeError:
         raise AttributeError(
-            "Cannot use {} as 'translation_id', there "
+            f"Cannot use {translation_id} as 'translation_id', there "
             "appear to be items without these metadata "
-            "attributes".format(translation_id)
+            "attributes"
         )
 
     for id_vals, items in groupby(content_list, attrgetter(*translation_id)):

pelican/writers.py

@@ -4,7 +4,6 @@ from posixpath import join as posix_join
 from urllib.parse import urljoin
 
 from feedgenerator import Atom1Feed, Rss201rev2Feed, get_tag_uri
-
 from markupsafe import Markup
 
 from pelican.paginator import Paginator

pyproject.toml

@@ -110,3 +110,99 @@ source-includes = [
 [build-system]
 requires = ["pdm-backend"]
 build-backend = "pdm.backend"
+
+[tool.ruff.lint]
+# see https://docs.astral.sh/ruff/configuration/#using-pyprojecttoml
+# "F" contains autoflake, see https://github.com/astral-sh/ruff/issues/1647
+# add more rules
+select = [
+    # default Ruff checkers as of ruff 0.1.3: E4, E7, E9, F
+    "E4",
+    "E7",
+    "E9",
+    "F",  # pyflakes
+
+    # the rest in alphabetical order:
+    # TODO: "A",   # flake8-builtins
+    # TODO: "ARG", # flake8-unused-arguments
+    "B",   # flake8-bugbear
+    # TODO: "BLE", # flake8-blind-except
+    # TODO: Do I want "COM", # flake8-commas
+    "C4",  # flake8-comprehensions
+    # TODO: "DJ",  # flake8-django
+    # TODO: "DTZ", # flake8-datetimez
+    # TODO: "EM",  # flake8-errmsg
+    "EXE", # flake8-executable
+    # TODO: "FURB", # refurb
+    # TODO: "FBT", # flake8-boolean-trap
+    # TODO: "G",   # flake8-logging-format
+    "I",   # isort
+    "ICN", # flake8-import-conventions
+    "INP", # flake8-no-pep420
+    # TODO: "INT", # flake8-gettext
+    "ISC", # flake8-implicit-str-concat
+    # TODO: "LOG", # flake8-logging
+    "PERF", # perflint
+    "PIE", # flake8-pie
+    "PL",  # pylint
+    "PYI", # flake8-pyi
+    # TODO: "RET", # flake8-return
+    "RSE", # flake8-raise
+    "RUF",
+    # TODO: "SIM", # flake8-simplify
+    "SLF", # flake8-self
+    "SLOT", # flake8-slots
+    "TID", # flake8-tidy-imports
+    "UP",  # pyupgrade
+    "Q",   # flake8-quotes
+    "TCH", # flake8-type-checking
+    "T10", # flake8-debugger
+    "T20", # flake8-print
+    # TODO: "S",   # flake8-bandit
+    "YTT", # flake8-2020
+    # TODO: add more flake8 rules
+  ]
+
+ignore = [
+    # suppression in order of # of violations in Dec 2023:
+    "B007",  # unused-loop-control-variable
+    "T201",  # print
+    "PLW2901",  # redefined-loop-name
+    "SLF001",  # private-member-access
+    "RUF001",  # ambiguous-unicode-character-string
+    "PLR2004",  # magic-value-comparison
+    "PLR0912",  # too-many-branches
+    "PLR0913",  # too-many-arguments
+    "RUF005",  # collection-literal-concatenation
+    "RUF012",  # mutable-class-default
+    "PLR0915",  # too-many-statements
+    "INP001",  # implicit-namespace-package
+    "RUF015",  # unnecessary-iterable-allocation-for-first-element
+    "PLR1722",  # sys-exit-alias
+    "ISC001",  # single-line-implicit-string-concatenation
+    "C408",  # unnecessary-collection-call
+    "B904",  # raise-without-from-inside-except
+    "UP031",  # printf-string-formatting
+    "PLR5501",  # collapsible-else-if
+    "PERF203",  # try-except-in-loop
+    "B006",  # mutable-argument-default
+    "PLR1714",  # repeated-equality-comparison
+    "PERF401",  # manual-list-comprehension
+    # TODO: these only have one violation each in Dec 2023:
+    "SLOT000",  # no-slots-in-str-subclass
+    "PYI024",  # collections-named-tuple
+    "PLW0603",  # global-statement
+    "PIE800",  # unnecessary-spread
+    "ISC003",  # explicit-string-concatenation
+    "EXE002",  # shebang-missing-executable-file
+    "C401",  # unnecessary-generator-set
+    "B028",  # no-explicit-stacklevel
+    "B008",  # function-call-in-default-argument
+]
+
+[tool.ruff.lint.extend-per-file-ignores]
+
+"pelican/__init__.py" = [
+    # allow imports after a call to a function, see the file
+    "E402"
+]