DOC: auto check pre-commit examples use latest stable version

.github/workflows/ci.yml

@@ -149,3 +149,20 @@ jobs:
 
     - name: Run mypy
       run: mypy src/inifix
+
+
+  check-readme:
+    runs-on: ubuntu-latest
+    name: check README.md
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.x
+
+    - run: python scripts/check_readme.py

pyproject.toml

@@ -6,6 +6,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "inifix"
+version = "5.0.1"
 description = "An I/O library for Pluto-style ini files."
 authors = [
     { name = "C.M.T. Robert" },
@@ -16,10 +17,6 @@ classifiers = [
     "Typing :: Typed",
 ]
 requires-python = ">=3.10"
-dynamic = ["version"]
-
-[tool.setuptools.dynamic]
-version = {attr = "inifix.__version__"}
 
 [project.license]
 text = "GPL-3.0"

scripts/check_readme.py

@@ -0,0 +1,40 @@
+import re
+import sys
+from difflib import unified_diff
+from pathlib import Path
+
+import tomllib
+
+REV_REGEXP = re.compile(r"rev:\s+v.*")
+STABLE_VER_REGEXP = re.compile(r"^\d\.*\d\.\d$")
+ROOT = Path(__file__).parents[1]
+README = ROOT / "README.md"
+PYPROJECT_TOML = ROOT / "pyproject.toml"
+
+
+def main() -> int:
+    text = README.read_text()
+
+    with open(PYPROJECT_TOML, "rb") as fh:
+        current_version = tomllib.load(fh)["project"]["version"]
+
+    if not STABLE_VER_REGEXP.match(current_version):
+        return 0
+
+    if text == (expected := REV_REGEXP.sub(f"rev: v{current_version}", text)):
+        return 0
+
+    diff = "\n".join(
+        line.removesuffix("\n")
+        for line in unified_diff(
+            text.splitlines(),
+            expected.splitlines(),
+            fromfile=str(PYPROJECT_TOML),
+        )
+    )
+    print(diff, file=sys.stderr)
+    return 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())

src/inifix/__init__.py

@@ -5,4 +5,7 @@
 from .validation import validate_inifile_schema
 from .format import format_string
 
-__version__ = "5.0.1"
+from importlib.metadata import version
+
+__version__ = version("inifix")
+del version