Setup Pixi and add 2 Github workflows (pixi and wheels)

.gitattributes

@@ -7,3 +7,4 @@ pixi.lock linguist-language=YAML
 old export-ignore
 ./try export-ignore
 ./bench export-ignore
+./image_samples export-ignore

.github/workflows/ci-pixi.yml

@@ -0,0 +1,29 @@
+name: CI Pixi
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  tests:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["windows-2022", "macos-latest"]
+        python-version: ["3.9", "3.10", "3.11"]
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+    - uses: actions/checkout@v3
+    - uses: prefix-dev/[email protected]
+      with:
+        pixi-version: v0.11.1
+        cache: false
+    - name: Install
+      run: |
+        pixi run install-editable
+    - name: Tests
+      run: |
+        pixi run test

.github/workflows/wheels.yml

@@ -0,0 +1,123 @@
+name: Build
+on:
+  - push
+  - pull_request
+
+jobs:
+
+  wheels:
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu
+            architecture: x86_64
+          # really long (2 hours), see next job wheel-ubuntu-aarch64
+          # - os: ubuntu
+          #   architecture: aarch64
+          - os: macos
+            architecture: x86_64
+          - os: macos
+            architecture: arm64
+          - os: windows
+            architecture: AMD64
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+        if: runner.os == 'Linux' && matrix.architecture == 'aarch64'
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
+      - name: Build wheels
+        uses: pypa/[email protected]
+        env:
+          CIBW_SKIP: pp* cp36-* cp37-* cp38-* *-musllinux*
+          CIBW_ARCHS: ${{ matrix.architecture }}
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheel-${{ matrix.os }}-${{ matrix.architecture }}
+          path: wheelhouse/*.whl
+
+  wheel-ubuntu-aarch64:
+    if: |
+      github.event_name == 'push' &&
+      startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
+      - name: Build wheels
+        uses: pypa/[email protected]
+        env:
+          CIBW_SKIP: pp* cp36-* cp37-* cp38-* *-musllinux*
+          CIBW_ARCHS: aarch64
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheel-ubuntu-aarch64
+          path: wheelhouse/*.whl
+
+  sdist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: echo ${{ github.ref }}
+      - run: python -m pip install build twine
+      - run: python -m build --sdist
+      - run: twine check --strict dist/*
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sdist
+          path: dist/*.tar.gz
+
+  check-sdist:
+    runs-on: ubuntu-latest
+    needs:
+      - sdist
+    steps:
+    - uses: actions/download-artifact@v4
+      with:
+        name: sdist
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.11
+    - run: |
+        pip install pip -U
+        ls
+        pip install fluidimage-*.tar.gz -v --no-deps -C setup-args=-Dtransonic-backend=python
+
+  pypi-publish:
+    name: Upload release to PyPI
+    if: |
+      github.event_name == 'push' &&
+      startsWith(github.ref, 'refs/tags/')
+    needs:
+      - wheels
+      - wheel-ubuntu-aarch64
+      - sdist
+      - check-sdist
+    runs-on: ubuntu-latest
+    environment:
+      name: publish
+      url: https://pypi.org/p/fluidimage
+    permissions:
+      id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
+    steps:
+    - uses: actions/download-artifact@v4
+      with:
+        path: dist
+        merge-multiple: true
+    - run: ls dist
+    - name: Publish package distributions to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1

.gitlab-ci.yml

@@ -1,5 +1,5 @@
 stages:
-  # - pixi
+  - pixi
   - image
   - lint
   - test
@@ -22,6 +22,15 @@ workflow:
     - if: $CI_COMMIT_TAG
 
 
+pixi-test:
+  stage: pixi
+  image: registry.heptapod.net:443/fluiddyn/fluidsim/ci/default:pixi
+  script:
+    - pixi info
+    - pixi run install-editable
+    - pixi run test
+
+
 # Build an image for the other tasks; this should be a scheduled job, as
 # it is quite unnecessary to run on every invocation.
 image:build:

.hgignore

@@ -13,6 +13,7 @@ fluidimage/_hg_rev.py
 
 .venv
 .nox
+.pixi
 
 .pdm-python