Set PyRTL's Python package version from git tag.

This avoid keeping the latest version number in two places, `pyproject.toml`
and `git tag`. Simplify instructions in release/README.md.

Rename some GitHub workflow jobs to clarify their purpose.

.github/workflows/python-release.yml

@@ -14,7 +14,6 @@ on: push
 jobs:
   # Verify that distribution archives can be built on every push.
   build:
-    name: Build and upload distribution archives
     runs-on: ubuntu-latest
 
     steps:
@@ -35,8 +34,7 @@ jobs:
         compression-level: 0
 
   # Publish distribution archive to TestPyPI on tag pushes.
-  publish-to-testpypi:
-    name: Publish distribution archives on TestPyPI
+  publish-testpypi:
     # Only publish to TestPyPI on tag pushes.
     if: startsWith(github.ref, 'refs/tags/')
     needs:
@@ -62,8 +60,7 @@ jobs:
 
   # Publish distribution archive to PyPI on tag pushes. The 'pypi' environment
   # requires manual approval on GitHub, so this job won't start automatically.
-  publish-to-pypi:
-    name: Publish distribution archives on PyPI
+  publish-pypi:
     # Only publish to PyPI on tag pushes.
     if: startsWith(github.ref, 'refs/tags/')
     needs:

.github/workflows/python-test.yml

@@ -5,7 +5,7 @@ on:
   - pull_request
 
 jobs:
-  build:
+  test:
     runs-on: ubuntu-latest
     strategy:
       matrix:

pyproject.toml

@@ -3,16 +3,18 @@
 # This file configures PyRTL's distribution archives, which are built and
 # uploaded to PyPI with GitHub actions.
 #
-# This configuration is based on the "Packaging Python Projects" tutorial at
+# This configuration is roughly based on the "Packaging Python Projects"
+# tutorial at
 # https://packaging.python.org/en/latest/tutorials/packaging-projects/
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling", "hatch-vcs"]
 build-backend = "hatchling.build"
 
 [project]
 name = "pyrtl"
-version = "0.11.0rc1"
+# hatch-vcs determines the version number from the latest git tag.
+dynamic = ["version"]
 authors = [
   {name="Timothy Sherwood", email="[email protected]"},
   {name="John Clow"},
@@ -46,3 +48,6 @@ svg = ["graphviz"]
 Homepage = "http://ucsbarchlab.github.io/PyRTL/"
 GitHub = "https://github.com/UCSBarchlab/PyRTL"
 Documentation = "https://pyrtl.readthedocs.io/"
+
+[tool.hatch.version]
+source = "vcs"

release/README.md

@@ -38,17 +38,11 @@ numbers.
    $ git clone [email protected]:UCSBarchlab/PyRTL.git pyrtl
    $ cd pyrtl
    ```
-2. Edit `pyproject.toml` by updating the `version =` line to `version =
-   "$NEW_VERSION"`
-3. Commit this change:
-   ```shell
-   $ git commit pyproject.toml
-   ```
-4. Tag the new version:
+2. Tag the new version:
    ```shell
    $ git tag $NEW_VERSION
    ```
-5. Push this change to GitHub. Tags are not pushed by default, so use:
+3. Push this change to GitHub. Tags are not pushed by default, so use:
    ```shell
    $ git push origin $NEW_VERSION
    ```