Add release workflow, use hatch-vcs for versioning

.github/workflows/build.yml

@@ -6,6 +6,8 @@ on:
       - 'README.md'
     branches:
       - main
+    tags:
+      - v*.*
   pull_request:
     branches:
       - main
@@ -19,11 +21,11 @@ jobs:
         python-version: [ "3.10", "3.11", "3.12", "3.13" ]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: Set up Python
         id: setup-python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -34,3 +36,30 @@ jobs:
       - name: Run tests
         run: |
           make test
+  release:
+    needs: test
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/plux
+    permissions:
+      id-token: write
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        id: setup-python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.13' 
+
+      - name: Build release
+        run: make dist
+
+      - name: List artifacts
+        run: ls -lah dist/
+
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

.gitignore

@@ -135,3 +135,6 @@ venv.bak/
 
 # don't ignore build package
 !plux/build
+
+# Ignore dynamically generated version.py
+plux/version.py

plux/__init__.py

@@ -14,11 +14,10 @@
     plugin,
 )
 from plux.runtime.manager import PluginContainer, PluginManager
+from plux.version import __version__
 
 name = "plux"
 
-__version__ = "1.14.0"
-
 __all__ = [
     "FunctionPlugin",
     "Plugin",
@@ -34,4 +33,5 @@
     "PluginSpecResolver",
     "PluginType",
     "plugin",
+    "__version__"
 ]

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ['hatchling']
+requires = ['hatchling', 'hatch-vcs']
 build-backend = "hatchling.build"
 
 [project]
@@ -35,8 +35,11 @@ dev = [
     "ruff==0.9.1",
 ]
 
+[tool.hatch.build.hooks.vcs]
+version-file = "plux/version.py"
+
 [tool.hatch.version]
-path = "plux/__init__.py"
+source = "vcs"
 
 [tool.ruff]
 line-length = 110