CI #159 combine & update

.github/workflows/conda_unit_test.yml

@@ -1,28 +1,76 @@
 name: Unit Tests
 
-on: [push, pull_request]
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:   # allow manual triggering
+
+defaults:
+  run:
+    shell: bash -l {0}
 
 jobs:
 
+  lint:
+    name: Code style
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+
+      - name: Install Dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8
+
+      - name: Run flake8
+        run: |
+          flake8
+
+      - name: Run black
+        uses: rickstaa/action-black@v1
+        with:
+          black_args: ". --check"
+
   build:
 
     runs-on: ubuntu-latest
+    needs: lint
     strategy:
       matrix:
         python-version:
         - 3.8
         - 3.9
         - "3.10"
         - 3.11
+      max-parallel: 5
 
     steps:
     - uses: actions/checkout@v2
 
     - name: Create Python ${{ matrix.python-version }} environment
-      uses: mamba-org/provision-with-micromamba@main
+      uses: mamba-org/setup-micromamba@v1
       with:
+        cache-environment: true
+        cache-environment-key: env-key-${{ matrix.python-version }}
+        condarc: |
+          channel-priority: flexible
         environment-file: environment.yml
-        environment-name: hklpy-test-${{ matrix.python-version }}
+        environment-name: hklpy-test-py-${{ matrix.python-version }}
+        create-args: >-
+          coveralls
+          pytest
+          pytest-cov
+          python=${{ matrix.python-version }}
 
     - name: conda environments
       shell: bash -l {0}