Use Ruff!

.github/workflows/build.yml

@@ -76,25 +76,16 @@ jobs:
         with:
           python-version: 3.9
       # This step ensures that everything is installed
-      - name: Install code cleaning components
+      - name: Upgrade pip
         run: |
           python -m pip install --upgrade pip
-          python -m pip install -e '.[dev]'
-
-      - name: Lint code
-        uses: psf/black@stable
 
-      - name: Flake code
-        run: |
-          python -m flake8 src tests
-
-      - name: Check import ordering
-        uses: isort/isort-action@master
-        with:
-          configuration: --check-only
+      - name: Run Ruff
+        uses: astral-sh/ruff-action@v1
 
       - name: Validate pyproject.toml
         run: |
+          python -m pip install "validate-pyproject[all]"
           python -m validate_pyproject pyproject.toml
 
   conda-dev-test:

.pre-commit-config.yaml

@@ -1,25 +1,13 @@
 repos:
-  # First, autoflake the code to avoid issues that could be solved quickly
-  - repo: https://github.com/myint/autoflake
-    rev: v2.3.1
-    hooks:
-      - id: autoflake
-        args: ["--in-place", "--remove-all-unused-imports"]
-  # Then, flake
-  - repo: https://github.com/PyCQA/flake8
-    rev: 7.1.0
-    hooks:
-      - id: flake8
-        additional_dependencies: 
-          - "flake8-typing-imports"
-          - "Flake8-pyproject"
-  # Next, sort imports
-  - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-  # Finally, lint
-  - repo: https://github.com/psf/black
-    rev: 23.1.0
-    hooks:
-      - id: black
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # ruff version
+    rev: v0.6.2
+    hooks:
+      # run the linter
+      - id: ruff
+      # run the formatter
+      - id: ruff-format
+  - repo: https://github.com/abravalheri/validate-pyproject
+    rev: v0.10.1
+    hooks:
+      - id: validate-pyproject

bin/lint.sh

@@ -4,11 +4,9 @@ dir=$(dirname "$0")
 cd "$dir/.."
 
 exitCode=0
-black src tests
+ruff check
 code=$?; test $code -eq 0 || exitCode=$code
-isort src tests
-code=$?; test $code -eq 0 || exitCode=$code
-python -m flake8 src tests
+ruff format --check
 code=$?; test $code -eq 0 || exitCode=$code
 validate-pyproject pyproject.toml
 code=$?; test $code -eq 0 || exitCode=$code

dev-environment.yml

@@ -35,12 +35,6 @@ dependencies:
   - qtconsole != 5.4.2
   - typing_extensions != 4.6.0
   # Developer tools
-  - autopep8
-  - black >= 23.1.0
-  - flake8 >= 7.1.0
-  - flake8-pyproject
-  - flake8-typing-imports
-  - isort
   - myst-parser
   - pre-commit
   - pyqt5-sip
@@ -49,6 +43,7 @@ dependencies:
   - pytest-cov
   - pytest-env
   - pytest-qt
+  - ruff
   - sphinx
   - sphinx-copybutton
   - sphinx_rtd_theme

pyproject.toml

@@ -53,20 +53,15 @@ dependencies = [
 # NB: Keep this in sync with dev-environment.yml!
 # Development tools
 dev = [
-    "autopep8",
-    "black >= 23.1.0",
     "build",
-    "flake8 >= 7.1.0",
-    "flake8-pyproject",
-    "flake8-typing-imports",
-    "isort",
     "myst-parser",
     "pre-commit",
     "pyqt5",
     "pytest",
     "pytest-cov",
     "pytest-env",
     "pytest-qt",
+    "ruff",
     "sphinx",
     "sphinx-copybutton",
     "sphinx-rtd-theme",
@@ -91,16 +86,19 @@ include-package-data = true
 [tool.setuptools.packages.find]
 where = ["src"]
 
-# Thanks to Flake8-pyproject, we can configure flake8 here!
-[tool.flake8]
-exclude = ["bin", "build", "docs", "dist"]
+# ruff configuration
+[tool.ruff]
+line-length = 88
+src = ["src", "tests"]
+include = ["pyproject.toml", "src/**/*.py", "tests/**/*.py"]
+extend-exclude = ["bin", "build", "dist", "doc", "scripts"]
+
+[tool.ruff.lint]
 extend-ignore = ["E203"]
-# See https://black.readthedocs.io/en/stable/guides/using_black_with_other_tools.html#flake8
-max-line-length = 88
-min_python_version = "3.8"
 
-[tool.isort]
-profile = "black"
+[tool.ruff.lint.per-file-ignores]
+# Ignore `E402` (import violations) in all `__init__.py` files, and in `path/to/file.py`.
+"__init__.py" = ["E402", "F401"]
 
 [tool.pytest.ini_options]
 addopts = "-s -p no:faulthandler"

src/napari_imagej/types/widget_mappings.py

@@ -22,7 +22,7 @@
 
 
 def _widget_preference(
-    func: Callable[["jc.ModuleItem", Union[type, str]], Optional[str]]
+    func: Callable[["jc.ModuleItem", Union[type, str]], Optional[str]],
 ) -> Callable[["jc.ModuleItem", Union[type, str]], Optional[str]]:
     PREFERENCE_FUNCTIONS.append(func)
     return func

tests/utilities/test_module_utils.py

@@ -589,17 +589,17 @@ def foo(
     import inspect
 
     assert "a" in args
-    assert args["a"]["annotation"] == inspect._empty
+    assert args["a"]["annotation"] is inspect._empty
     assert args["a"]["options"] == dict(tooltip="We don't use this")
     assert "value" not in args["a"]
 
     assert "b" in args
-    assert args["b"]["annotation"] == str
+    assert args["b"]["annotation"] is str
     assert "options" not in args["b"]
     assert "value" not in args["b"]
 
     assert "c" in args
-    assert args["c"]["annotation"] == Image
+    assert args["c"]["annotation"] is Image
     assert args["c"]["options"] == dict(choices=get_layers)
     assert "value" not in args["c"]
 
@@ -609,12 +609,12 @@ def foo(
     assert "value" not in args["d"]
 
     assert "e" in args
-    assert args["e"]["annotation"] == inspect._empty
+    assert args["e"]["annotation"] is inspect._empty
     assert "options" not in args["e"]
     assert args["e"]["value"] == "default"
 
     assert "f" in args
-    assert args["f"]["annotation"] == str
+    assert args["f"]["annotation"] is str
     assert "options" not in args["f"]
     assert args["f"]["value"] == "also default"