Merge pull request #204 from akrherz/gh201_project_version

akrherz · web-flow · commit 37c6c04df01c · 2026-03-20T10:30:23.000-05:00
fix: Make project version dynamic
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        # 3.14 not ready for mymy
+        # 3.14 not ready for mypy
         python-version: ["3.13"]
     steps:
     - uses: actions/checkout@v6
diff --git a/.gitignore b/.gitignore
@@ -7,3 +7,4 @@ htmlcov/
 /build/
 /dist/
 /metar.egg-info/
+/metar/_version.py
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,8 @@ Over the years, this package has gone by the name `metar` and `python-metar`. We
 settling on `metar` going forward, which matches the most recent pypi and conda-forge
 coordinates.
 
+- [#201](https://github.com/python-metar/python-metar/pull/201) Use SCM to define project version
+
 metar-2.0.0 (18 March 2026)
 
 This release rolls up fixes and updates made by the community. The version number
diff --git a/metar/__init__.py b/metar/__init__.py
@@ -28,7 +28,16 @@
 
 __email__ = "pollard@alum.mit.edu"
 
-__version__ = "2.0.0"
+__version__ = "0.0.0"  # Default
+try:
+    # Exists after installation via scm write_to
+    from ._version import version as __version__
+except ImportError:
+    from importlib.metadata import version, PackageNotFoundError
+    try:
+        __version__ = version("metar")
+    except PackageNotFoundError:
+        pass
 
 __doc__ = """metar v%s (c) 2009, %s
 
diff --git a/pyproject.toml b/pyproject.toml
@@ -1,12 +1,12 @@
 [project]
 name = "metar"
-version = "2.0.0"
 description = "Metar - a package to parse METAR-coded weather reports"
 
 authors = [
     {"name"="Tom Pollard", email="pollard@alum.mit.edu"}
 ]
 license = {file = "LICENSE"}
+dynamic = ["version"]
 
 requires-python = ">= 3.10"
 readme = "README.md"
@@ -27,11 +27,15 @@ packages = ["metar"]
 [tool.setuptools.package-data]
 metar =  ["nsd_cccc.txt", "py.typed", "*.pyi"]
 
+[tool.setuptools_scm]
+version_scheme = "post-release"
+write_to = "metar/_version.py"
+
 [project.urls]
 Repository = "https://github.com/python-metar/python-metar/"
 
 [build-system]
-requires = ["setuptools >= 61.0"]
+requires = ["setuptools>=64", "setuptools_scm>=8"]
 build-backend = "setuptools.build_meta"
 
 [project.optional-dependencies]
@@ -44,5 +48,5 @@ codecov = [
     "codecov",
 ]
 typing = [
-    "mypy==1.3.0"
+    "mypy==1.3.0",
 ]
