Add pypi publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,50 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Check release tag matches package version
+        run: |
+          TAG_VERSION="${GITHUB_REF_NAME#v}"
+          PKG_VERSION="$(python -c 'import tomllib; print(tomllib.load(open("pyproject.toml","rb"))["tool"]["poetry"]["version"])')"
+          echo "Release tag version: $TAG_VERSION"
+          echo "Package version: $PKG_VERSION"
+          if [ "$TAG_VERSION" != "$PKG_VERSION" ]; then
+            echo "::error::Release tag ($TAG_VERSION) does not match pyproject.toml version ($PKG_VERSION)"
+            exit 1
+          fi
+
+      - name: Build
+        run: |
+          python -m pip install --upgrade pip build
+          python -m build
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      id-token: write        # required for trusted publishing
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+      - uses: pypa/gh-action-pypi-publish@release/v1

pyproject.toml

@@ -1,9 +1,25 @@
 [tool.poetry]
 name = "refractiveindex"
-version = "1.0.2"
+version = "1.0.3"
 description = "A python interface to the refractiveindex.info database."
 authors = ["Ivan Toftul <toftul.ivan@gmail.com>"]
 readme = "README.md"
+license = "MIT"
+homepage = "https://github.com/toftul/refractiveindex"
+repository = "https://github.com/toftul/refractiveindex"
+keywords = ["optics", "refractive index", "photonics", "materials", "refractiveindex.info"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Topic :: Scientific/Engineering :: Physics",
+]
 
 [tool.poetry.dependencies]
 python = "^3.10"