use pixi + hatch for parametrized zarr python testing

Author: d-v-b

.github/workflows/ci.yaml

@@ -70,3 +70,29 @@ jobs:
           fail_ci_if_error: true
           token: ${{ secrets.CODECOV_TOKEN }}
           verbose: true
+
+  test-zarr:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    defaults:
+      run:
+        shell: bash -el {0}
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0 # required for version resolution
+
+      - name: Set up Pixi
+        uses: prefix-dev/[email protected]
+        with:
+          pixi-version: v0.49.0
+          cache: true
+
+      - name: Run tests
+        shell: "bash -l {0}"
+        run: pixi run -e default hatch run test:test-zarr

.gitignore

@@ -105,5 +105,5 @@ numcodecs/version.py
 # Cython generated
 numcodecs/*.c
 # pixi environments
-.pixi
-*.egg-info
+.pixi/*
+*.egg-info