Workflow with conda env cache

Author: briling

.github/workflows/python-package-conda-cache.yml

@@ -0,0 +1,63 @@
+name: Python Package with caching
+
+# taken from https://github.com/epassaro/cache-conda-envs
+
+# cancel any previous running or pending jobs from the same branch
+concurrency:
+  group: python-package-conda-cache-${{ github.head_ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches:
+      - '*'
+
+  pull_request:
+    branches:
+      - '*'
+
+  schedule:
+    - cron: '0 0 * * *'
+
+env:
+  CACHE_NUMBER: 0  # increase to reset cache manually
+
+jobs:
+  build:
+
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            label: linux-64
+            prefix: /usr/share/miniconda3/envs/my-env
+
+    name: ${{ matrix.label }}
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Mambaforge
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+            miniforge-variant: Mambaforge
+            miniforge-version: latest
+            activate-environment: my-env
+            use-mamba: true
+
+      - name: Set cache date
+        run: echo "DATE=$(date +'%Y%m%d')" >> $GITHUB_ENV
+
+      - uses: actions/cache@v2
+        with:
+          path: ${{ matrix.prefix }}
+          key: ${{ matrix.label }}-conda-${{ hashFiles('environment.yml') }}-${{ env.DATE }}-${{ env.CACHE_NUMBER }}
+        id: cache
+
+      - name: Update environment
+        run: mamba env update -n my-env -f environment.yml
+        if: steps.cache.outputs.cache-hit != 'true'
+
+      - name: Run tests
+        shell: bash -l {0}
+        run: pytest ./tests