start testing min required dependencies

.github/workflows/ci-additional.yml

@@ -0,0 +1,75 @@
+name: mesmer CI-CD
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: py${{ matrix.python-version }}-${{ matrix.env }}
+    runs-on: "ubuntu-latest"
+    defaults:
+      run:
+        shell: bash -l {0}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - env: "min-all-deps"
+            python-version: "3.9"
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set environment variables
+      run: |
+        PY=${{ matrix.python-version }}
+        # replace "." in matrix.python-version
+        PY=${PY//./}
+        echo "CONDA_ENV_FILE=ci/requirements/py${PY}-${{ matrix.env }}.yml" >> $GITHUB_ENV
+
+    - name: Create conda environment
+      uses: mamba-org/setup-micromamba@v1
+      with:
+        environment-name: mesmer-tests
+        cache-downloads: true
+        cache-downloads-key: "${{runner.os}}-${{runner.arch}}-py${{matrix.python-version}}"
+        micromamba-version: 'latest'
+        environment-file: ${{ env.CONDA_ENV_FILE }}
+        create-args: >-
+          python=${{ matrix.python-version }}
+
+    - name: Install mesmer
+      run: |
+        python -m pip install --no-deps -e .
+
+    - name: Conda info
+      run: |
+        conda info -a
+
+    - name: Conda list
+      run: conda list
+
+    - name: Run tests
+      run: python -u -m pytest
+       -r a -v
+       --all
+       --cov=mesmer
+       --cov-report=xml
+
+    - name: Upload code coverage to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+          file: ./coverage.xml
+          flags: unittests
+          env_vars: RUNNER_OS,PYTHON_VERSION
+          name: codecov-umbrella
+          fail_ci_if_error: false

ci/requirements/py39-min-all-deps.yml

@@ -0,0 +1,26 @@
+name: mesmer-tests
+
+channels:
+  - conda-forge
+  - nodefaults
+
+dependencies:
+ - python=3.9
+ - cartopy
+ - dask[complete]
+ - gdal
+ - netcdf4
+ - numpy
+ - packaging
+ - pandas==2.0
+ - pooch
+ - regionmask==0.8
+ - scikit-learn
+ - statsmodels
+ - xarray==2023.04
+# for testing
+ - black!=23
+ - flake8
+ - isort
+ - pytest
+ - pytest-cov

environment.yml

@@ -15,7 +15,6 @@ dependencies:
  - pooch
  - regionmask>=0.8
  - scikit-learn
- - sphinx
  - statsmodels
  - xarray>=2023.04 # because pandas 2 is required
 # for testing