Set up CI with Azure Pipelines

[skip ci]

azure-pipelines.yml

@@ -0,0 +1,45 @@
+trigger:
+- main
+
+pool:
+  vmImage: ubuntu-latest
+strategy:
+  matrix:
+    Python37:
+      python.version: '3.7'
+
+steps:
+- task: UsePythonVersion@0
+  inputs:
+    versionSpec: '$(python.version)'
+  displayName: 'Use Python $(python.version)'
+
+- bash: |
+    echo "##vso[task.prependpath]$CONDA/bin"
+  displayName: Add conda to PATH
+
+- bash: |
+    conda env create --file environment.yml
+    conda init bash
+    source activate fsmol
+    pip install flake8==3.8.3 black==20.8b1
+    conda deactivate
+  displayName: Create Anaconda environment with all dependencies
+  condition: succeeded()
+
+- bash: |
+    source activate fsmol
+    # Run black
+    black --check --diff .
+    if [ $? -ne 0 ]; then
+      exit 1
+    fi
+    # Run flake8
+    flake8
+    if [ $? -ne 0 ]; then
+      exit 1
+    fi
+    conda deactivate
+
+  condition: succeeded()
+  displayName: Run black, flake8