use ruff instead of prospector and isort (Refs #336)

Author: cwmeijer

CHANGELOG.md

@@ -11,6 +11,7 @@
 
 ### Changed
 
+* Moved from prospector to ruff [#336](https://github.com/NLeSC/python-template/issues/336)
 * Renamed `project_name` to `directory_name` in cookiecutter questionnaire
 * Initial linting is error free [#227](https://github.com/NLeSC/python-template/issues/227)
 * Consolidated test/lint/build/docs into single matrix workflow [#270](https://github.com/NLeSC/python-template/issues/276)

README.md

@@ -11,7 +11,7 @@ an empty Python package. Features include:
 - [Python static setup configuration]({{cookiecutter.directory_name}}/setup.cfg),
 - Open source software license,
 - Continuous integration with [GitHub action workflows]({{cookiecutter.directory_name}}/.github/workflows) for building, testing, link checking and linting,
-- Code style checking with [prospector](https://pypi.org/project/prospector/),
+- Code style checking with [ruff](https://beta.ruff.rs/),
 - [Editorconfig]({{cookiecutter.directory_name}}/.editorconfig),
 - Usage and contribution documents:
   - [README.md]({{cookiecutter.directory_name}}/README.md) for package users,
@@ -131,7 +131,6 @@ my-python-project/
 ├── next_steps.md
 ├── NOTICE
 ├── project_setup.md
-├── .prospector.yml
 ├── .pylintrc
 ├── pyproject.toml
 ├── README.dev.md

tests/test_project.py

@@ -153,20 +153,11 @@ def test_doctest_api_docs(baked_with_development_dependencies, project_env_bin_d
     assert (project_dir / 'docs' / '_build' / 'doctest' / 'output.txt').exists()
 
 
-def test_prospector(baked_with_development_dependencies, project_env_bin_dir):
+def test_ruff_check(baked_with_development_dependencies, project_env_bin_dir):
     project_dir = baked_with_development_dependencies
     bin_dir = project_env_bin_dir
 
-    result = run([f'{bin_dir}prospector'], project_dir)
-    assert result.returncode == 0
-    assert 'Messages Found: 0' in result.stdout
-
-
-def test_isort_check(baked_with_development_dependencies, project_env_bin_dir):
-    project_dir = baked_with_development_dependencies
-    bin_dir = project_env_bin_dir
-
-    result = run([f'{bin_dir}isort', '--check-only', 'my_python_package'], project_dir)
+    result = run([f'{bin_dir}ruff', '.'], project_dir)
     assert result.returncode == 0
     assert '' in result.stdout
 

{{cookiecutter.directory_name}}/.githooks/pre-commit

@@ -3,29 +3,17 @@
 echo "Script $0 triggered ..."
 
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-echo "Starting prospector analysis using configuration from .prospector.yml..."
+echo "Starting ruff analysis..."
 
-# quietly run prospector
-prospector 1>/dev/null
+# quietly run ruff
+ruff . --fix
 
 # use return code to abort commit if necessary
 if [ $? != "0" ]; then
-    echo "Commit aborted. Run 'prospector' to see the errors."
+    echo "Commit aborted. Fix linter issues found by ruff before committing."
     exit 1
 fi
 
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
-echo "Starting isort analysis using configuration from setup.cfg..."
-
-# recursively run isort on {{ cookiecutter.package_name }}/ directory, don't try to automatically fix anything
-isort --recursive --check-only {{ cookiecutter.package_name }}
-
-if [ $? != "0" ]; then
-    echo "Commit aborted."
-    echo "  Run 'isort --check-only --diff {{ cookiecutter.package_name }}' to see what's wrong."
-    echo "  Run 'isort {{ cookiecutter.package_name }}' to let isort fix problems automatically."
-    exit 1
-fi
-
 echo "Pre-commit checks completed successfully."
 exit 0

{{cookiecutter.directory_name}}/.github/next_steps/05_linting.md

@@ -7,7 +7,7 @@ Your repository has a [workflow]({{ cookiecutter.repository }}/blob/main/.github
 Linter workflow may fail if `description` or `keywords` field in [setup.cfg]({{ cookiecutter.repository }}/blob/main/setup.cfg) is empty. Please update these fields. To validate your changes run:
 
 ```shell
-prospector
+ruff .
 ```
 
 Enabling [githook](https://git-scm.com/docs/githooks) will automatically lint your code in every commit. You can enable it by running the command below.

{{cookiecutter.directory_name}}/.github/workflows/build.yml

@@ -58,7 +58,5 @@ jobs:
         run: |
           python -m pip install --upgrade pip setuptools
           python -m pip install .[dev,publishing]
-      - name: Check style against standards using prospector
-        run: prospector
-      - name: Check import order
-        run: isort --check-only {{ cookiecutter.package_name }} --diff
+      - name: Check style against standards using ruff
+        run: ruff .

{{cookiecutter.directory_name}}/.github/workflows/sonarcloud.yml

@@ -29,8 +29,6 @@ jobs:
           python --version
       - name: Install dependencies
         run: python -m pip install .[dev]
-      - name: Check style against standards using prospector
-        run: prospector --zero-exit --output-format grouped --output-format pylint:pylint-report.txt
       - name: Run unit tests with coverage
         run: python -m pytest --cov --cov-report term --cov-report xml --junitxml=xunit-result.xml tests/
       - name: Correct coverage paths

{{cookiecutter.directory_name}}/.prospector.yml

@@ -62,28 +62,20 @@ coverage report
 
 ## Running linters locally
 
-For linting we will use [prospector](https://pypi.org/project/prospector/) and to sort imports we will use
-[isort](https://pycqa.github.io/isort/). Running the linters requires an activated virtual environment with the
-development tools installed.
+For linting and sorting imports we will use [ruff](https://beta.ruff.rs/docs/). Running the linters requires an 
+activated virtual environment with the development tools installed.
 
 ```shell
 # linter
-prospector
+ruff .
 
-# recursively check import style for the {{ cookiecutter.package_name }} module only
-isort --check-only {{ cookiecutter.package_name }}
-
-# recursively check import style for the {{ cookiecutter.package_name }} module only and show
-# any proposed changes as a diff
-isort --check-only --diff {{ cookiecutter.package_name }}
-
-# recursively fix import style for the {{ cookiecutter.package_name }} module only
-isort {{ cookiecutter.package_name }}
+# linter with automatic fixing
+ruff . --fix
 ```
 
 To fix readability of your code style you can use [yapf](https://github.com/google/yapf).
 
-You can enable automatic linting with `prospector` and `isort` on commit by enabling the git hook from `.githooks/pre-commit`, like so:
+You can enable automatic linting with `ruff` on commit by enabling the git hook from `.githooks/pre-commit`, like so:
 
 ```shell
 git config --local core.hooksPath .githooks

{{cookiecutter.directory_name}}/README.dev.md

@@ -19,3 +19,77 @@ skip_missing_interpreters = true
 commands = pytest
 extras = dev
 """
+
+[tool.ruff]
+# Enable Pyflakes `E` and `F` codes by default.
+select = [
+    "F",  # Pyflakes
+    "E",  # pycodestyle (error)
+    "W",    # pycodestyle (warning)
+    # "C90",  # mccabe
+    "I",    # isort
+    "D",    # pydocstyle
+    # "PL",   # Pylint
+    # "PLC",  # Convention
+    # "PLE",  # Error
+    # "PLR",  # Refactor
+    # "PLW",  # Warning
+
+]
+ignore = [
+    'D100',  # Missing module docstring
+    # The following list excludes rules irrelevant to the Google style
+    'D203',
+    'D204',
+    'D213',
+    'D215',
+    'D400',
+    'D401',
+    'D404',
+    'D406',
+    'D407',
+    'D408',
+    'D409',
+    'D413',
+]
+
+# Allow autofix for all enabled rules (when `--fix`) is provided.
+fixable = ["A", "B", "C", "D", "E", "F", "I"]
+unfixable = []
+
+exclude = [
+    ".bzr",
+    ".direnv",
+    ".eggs",
+    ".git",
+    ".hg",
+    ".mypy_cache",
+    ".nox",
+    ".pants.d",
+    ".ruff_cache",
+    ".svn",
+    ".tox",
+    ".venv",
+    "__pypackages__",
+    "_build",
+    "buck-out",
+    "build",
+    "dist",
+    "node_modules",
+    "venv",
+    ".venv",
+    "scripts",
+]
+per-file-ignores = {}
+
+
+# Allow unused variables when underscore-prefixed.
+dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+
+target-version = "py39"
+line-length = 120
+
+[tool.ruff.isort]
+known-first-party = ["{{ cookiecutter.package_name }}"]
+force-single-line = true
+no-lines-before = ["future","standard-library","third-party","first-party","local-folder"]