Merge branch 'v4-dev' into how-to-accuracy

Author: reint-fischer

.github/ci/min-core-deps.yml

@@ -0,0 +1,25 @@
+channels:
+  - conda-forge
+platforms:
+  - noarch
+  - linux-64
+policy:
+  # all packages in months
+  packages:
+    python: 30
+    numpy: 18
+  default: 12
+  # overrides for the policy
+  overrides: {}
+  # these packages are completely ignored
+  exclude:
+    - pytest
+    - hypothesis
+    - pytest-html
+    - pytest-cov
+    - nbval
+    - uxarray # undergoes active development
+    - xgcm # undergoes active development
+
+  # these packages don't fail the CI, but will be printed in the report
+  ignored_violations: []

.github/ci/min_deps_check.py

@@ -8,32 +8,21 @@ jobs:
   min-version-policy:
     name: Minimum Version Policy
     runs-on: "ubuntu-latest"
-    defaults:
-      run:
-        shell: bash -l {0}
-
+    env:
+      COLUMNS: 120
     steps:
       - uses: actions/checkout@v5
-      - name: Setup micromamba
-        uses: mamba-org/setup-micromamba@v2
-        with:
-          environment-name: min-deps
-          create-args: >-
-            python=3.12
-            pyyaml
-            conda
-            python-dateutil
-
-      - name: Core deps minimum versions policy
-        run: |
-          python .github/ci/min_deps_check.py .github/ci/min-core-deps.yml
+      - uses: astral-sh/setup-uv@v7
+      - run: |
+          uv run --with 'minimum-dependency-versions @ git+https://github.com/xarray-contrib/[email protected]' \
+          python -m minimum_versions validate \
+          --policy=.github/ci/policy.yaml \
+          --manifest-path=./pixi.toml \
+          pixi:test-minimum
 
   linkcheck:
     name: pixi run docs-linkcheck
     runs-on: "ubuntu-latest"
-    defaults:
-      run:
-        shell: bash -l {0}
 
     steps:
       - uses: actions/checkout@v5

.github/ci/policy.yaml

@@ -51,9 +51,27 @@ jobs:
         with:
           cache: true
           cache-write: ${{ github.event_name == 'push' && github.ref_name == 'v4-dev' }} # TODO: Update v4-dev to main when v4 is released
+      # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache
+      - name: Restore cached hypothesis directory
+        id: restore-hypothesis-cache
+        uses: actions/cache/restore@v4
+        with:
+          path: .hypothesis/
+          key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
+          restore-keys: |
+            cache-hypothesis-${{ runner.os }}-
       - name: Unit test
+        id: unit-test
         run: |
           pixi run -e ${{ matrix.pixi-environment }} tests -v -s --cov=parcels --cov-report=xml --html="${{ env.COVERAGE_REPORT }}" --self-contained-html
+      # explicitly save the cache so it gets updated, also do this even if it fails.
+      - name: Save cached hypothesis directory
+        id: save-hypothesis-cache
+        if: always() && steps.unit-test.outcome != 'skipped'
+        uses: actions/cache/save@v4
+        with:
+          path: .hypothesis/
+          key: cache-hypothesis-${{ runner.os }}-${{ github.run_id }}
       - name: Codecov
         uses: codecov/[email protected]
         env: