Use pyproject.toml and ruff (#248)

* move to ruff and pyproject

* flit

* per file ignores

* changelog

* update test

++version.py

@@ -43,17 +43,15 @@
 with open("codemeta.json", "w") as f:
     json.dump(data, f)
 
-# setup.py
+# pyproject.toml
 new_setup = ""
-with open("setup.py") as f:
+with open("pyproject.toml") as f:
     for line in f:
-        if 'version="' in line:
-            a, b = line.split('version="')
-            b = b.split('"', 1)[1]
-            new_setup += f'{a}version="{new_version_str}"{b}'
+        if 'version ="' in line:
+            new_setup += f'version = "{new_version_str}"\n'
         else:
             new_setup += line
-with open("setup.py", "w") as f:
+with open("pyproject.toml", "w") as f:
     f.write(new_setup)
 
 # symfem/version.py

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+max-line-length = 100
+per-file-ignores =
+    */__init__.py: F401

.github/workflows/style-checks.yml

@@ -16,10 +16,10 @@ jobs:
       - uses: actions/checkout@v3
       - run: sudo apt-get install -y python3-setuptools
       - run: pip3 install -e .[style,docs]
+      - run: python3 -m ruff check .
+        name: Run ruff checks
       - run: python3 -m flake8 .
         name: Run flake8 checks
-      - run: python3 -m pydocstyle .
-        name: Run pydocstyle checks
       - run: python3 -m mypy .
         name: Run mypy checks
       - run: python3 -m isort --check .

pyproject.toml

@@ -0,0 +1,42 @@
+[build-system]
+build-backend = "flit_core.buildapi"
+requires = ["flit_core >=3.8.0,<4"]
+
+[project]
+name = "symfem"
+version = "2023.8.2"
+description = "a symbolic finite element definition library"
+readme = "README.md"
+requires-python = ">=3.8.0"
+license = { file = "LICENSE" }
+authors = [
+    { name = "Matthew Scroggs", email = "symfem@mscroggs.co.uk" }
+]
+packages = ["symfem", "symfem.elements", "symfem.polynomials"]
+dependencies = ["sympy>=1.10", "appdirs"]
+
+[project.urls]
+homepage = "https://github.com/mscroggs/symfem"
+repository = "https://github.com/mscroggs/symfem"
+documentation = "https://symfem.readthedocs.io/en/latest/"
+
+[project.optional-dependencies]
+style = ["ruff", "flake8", "mypy", "isort"]
+docs = ["sphinx", "sphinx-autoapi"]
+optional = ["CairoSVG>=2.6.0"]
+test = ["pytest", "symfem[optional]", "numpy"]
+
+[tool.ruff]
+line-length = 100
+
+[tool.ruff.lint.per-file-ignores]
+"__init__.py" = ["F401"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "google"
+
+[tool.mypy]
+ignore_missing_imports = true
+
+[tool.isort]
+line_length = 100

test/test_docs.py

@@ -175,11 +175,11 @@ def test_version_numbers():
     assert data["version"] == version
     date = data["dateModified"]
 
-    # setup.py
-    with open(os.path.join(root, "setup.py")) as f:
+    # pyproject.toml
+    with open(os.path.join(root, "pyproject.toml")) as f:
         for line in f:
-            if 'version="' in line:
-                assert line.split('version="')[1].split('"')[0] == version
+            if 'version = "' in line:
+                assert line.split('version = "')[1].split('"')[0] == version
 
     # symfem/version.py
     with open(os.path.join(root, "symfem/version.py")) as f: