ci: publish Conda packages to LSDOlab

.conda/recipe/meta.yaml

@@ -0,0 +1,39 @@
+{% set version = environ["PKG_VERSION"] %}
+
+package:
+  name: csdl_alpha
+  version: {{ version }}
+
+source:
+  path: ../..
+
+build:
+  number: 0
+  noarch: python
+  script: "{{ PYTHON }} -m pip install . --no-deps --no-build-isolation -vv"
+
+requirements:
+  host:
+    - python >=3.9
+    - pip
+    - setuptools
+  run:
+    - python >=3.9
+    - numpy
+    - scipy
+    - sympy
+    - rustworkx
+    - networkx
+    - h5py
+    - pydot
+    - pytest
+
+about:
+  home: https://github.com/LSDOlab/CSDL_alpha
+  license: LGPL-3.0-or-later
+  license_file: LICENSE
+  summary: Computational System Design Language.
+
+extra:
+  recipe-maintainers:
+    - LSDOlab

.github/workflows/conda-publish.yml

@@ -0,0 +1,59 @@
+name: Publish Conda package
+
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    env:
+      ANACONDA_API_TOKEN: ${{ secrets.ANACONDA_API_TOKEN }}
+      ANACONDA_OWNER: LSDOlab
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Conda build tools
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: conda-build
+          python-version: "3.12"
+          channels: conda-forge
+          channel-priority: strict
+          auto-update-conda: false
+
+      - name: Install publishing tools
+        shell: bash -el {0}
+        run: conda install --yes --channel conda-forge conda-build anaconda-client
+
+      - name: Read normalized package version
+        id: package
+        shell: bash
+        run: |
+          python - <<'PY' >> "$GITHUB_OUTPUT"
+          from pathlib import Path
+          from packaging.version import Version
+          import re
+          text = Path("csdl_alpha/__init__.py").read_text()
+          match = re.search(r"^__version__\s*=\s*['\"]([^'\"]+)", text, re.M)
+          assert match, "version not found"
+          print(f"version={Version(match.group(1))}")
+          PY
+
+      - name: Build Conda package
+        shell: bash -el {0}
+        env:
+          PKG_VERSION: ${{ steps.package.outputs.version }}
+        run: conda build .conda/recipe --channel conda-forge --output-folder "$RUNNER_TEMP/conda-bld"
+
+      - name: Publish to Anaconda.org
+        shell: bash -el {0}
+        run: |
+          test -n "$ANACONDA_API_TOKEN" || { echo "::error::ANACONDA_API_TOKEN is not configured"; exit 1; }
+          package_file="$(find "$RUNNER_TEMP/conda-bld/noarch" -maxdepth 1 -type f \( -name '*.conda' -o -name '*.tar.bz2' \) -print -quit)"
+          test -n "$package_file" || { echo "::error::Conda build did not produce a noarch package"; exit 1; }
+          anaconda --token "$ANACONDA_API_TOKEN" upload --user "$ANACONDA_OWNER" --label main "$package_file"