Use micromamba for CI builds

.github/PULL_REQUEST_TEMPLATE.md

@@ -6,5 +6,6 @@ Checklist:
 * [ ] Add docstrings and API docs for any new/modified user-facing classes and functions
 * [ ] New/modified features documented in `docs/source/*`
 * [ ] Changes documented in `CHANGES.md`
+* [ ] GitHub CI passes
 * [ ] AppVeyor CI passes
 * [ ] Test coverage remains or increases (target 100%)

.github/workflows/xcube_workflow.yaml

@@ -18,13 +18,14 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       # Setup miniconda build env
-      - uses: conda-incubator/setup-[email protected]
+      - uses: mamba-org/setup-micromamba@v1
         with:
-          miniconda-version: py39_22.11.1-1
-          mamba-version: "*"
-          channels: conda-forge
-          activate-environment: xcube
+          micromamba-version: '1.4.8-0'
           environment-file: environment.yml
+          init-shell: >-
+            bash
+          cache-environment: true
+          post-cleanup: 'all'
       # Setup xcube
       - name: setup-xcube
         shell: bash -l {0}

CHANGES.md

@@ -1,5 +1,8 @@
 ## Changes in 1.1.3 (in development)
 
+* Updated AppVeyor and GitHub workflow configurations to use micromamba rather
+  than mamba (#785)
+
 ## Changes in 1.1.2
 
 ### Fixes

appveyor.yml

@@ -15,42 +15,53 @@ for:
     only:
       - image: macos
   install:
-    - curl -L https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh > miniconda.sh
-    - bash miniconda.sh -b -p $HOME/miniconda
+    - curl -Ls https://micromamba.snakepit.net/api/micromamba/osx-64/latest | tar -xvj bin/micromamba
+    - mv bin/micromamba ./micromamba
 -
   matrix:
     only:
       - image: Ubuntu2004
   install:
-    - wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
-    - bash miniconda.sh -b -p $HOME/miniconda
+    - wget -qO- https://micromamba.snakepit.net/api/micromamba/linux-64/latest | tar -xvj bin/micromamba --strip-components=1
 
 build_script:
-  - export PATH="$HOME/miniconda/bin:$PATH"
+  # Diagnostics
+  - echo $PLATFORM
+  - echo $APPVEYOR_BUILD_WORKER_IMAGE
+  - uname -a
+  - pwd
+  - ls
+
+  # Set up micromamba
+  - ./micromamba shell init -s bash -p ~/micromamba
+  - source ~/.bashrc
+  - source ~/.bash_profile
   - hash -r
-  - conda config --set always_yes yes --set changeps1 no
-  # - conda update -q conda # makes travis build fail
-  # Useful for debugging any issues with conda
-  - conda info -a
-  - conda init bash
-  - export CONDA_BASE=$(conda info --base)
-  - source $CONDA_BASE/etc/profile.d/conda.sh
-
-  # Install mamba as a dramatically faster conda replacement. Specifying a
-  # fixed version makes the installation of mamba itself much faster, and
-  # avoids potential breakage due to changes in mamba behaviour.
-  - conda install -c conda-forge mamba=0.24.0 pip=22.1.2
-
-  # Environments created by mamba can't be referenced by name from conda
-  # (presumably a bug), so we use an explicit path instead.
-  - mamba env create --prefix $HOME/mamba-env --file environment.yml
-  - conda activate $HOME/mamba-env
-  - conda list
-  - env
+  - mkdir -p ~/micromamba/pkgs/
+  - export MAMBA_ROOT_PREFIX=~/micromamba
+  - export MAMBA_EXE=$(pwd)/micromamba
+  - . $MAMBA_ROOT_PREFIX/etc/profile.d/micromamba.sh
+
+  # Clone repo, create environment, and install xcube
+  - git clone https://github.com/dcs4cop/xcube $HOME/xcube
+  - micromamba create --name xc --file $HOME/xcube/environment.yml
+  - micromamba activate xc
+  - cd $HOME/xcube
   - python setup.py install
 
+  # Make sure pytest is installed
+  - micromamba install --yes --name xc --channel conda-forge pytest attrs
+
+  # Print some diagnostics (useful for debugging)
+  - micromamba list
+  - xcube --version
+  - python -c "from xcube import __version__; print(f'xcube version {__version__}')"
+
+  # Run the test suite
+  - pytest -v --cov=xcube
+
   # Setting NUMBA_DISABLE_JIT=1 makes unit tests way too slow, so we accept less code coverage here
   # - export NUMBA_DISABLE_JIT=1
-  - py.test -v --cov=xcube
+  # - py.test -v --cov=xcube