Edit pipeline to use runtime parameters

https://stackoverflow.com/a/70046417

.azure/azure-ci-build-pipeline.yaml

@@ -6,41 +6,49 @@ trigger:
 - bugfix/*
 - release/*
 
-strategy:
-  ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
-    matrix:
+parameters:
+  # https://stackoverflow.com/a/70046417
+  - name: matrix
+    type: object
+    default:
       UbuntuPython38:
-        python.version: '3.8'
-        imageName: 'ubuntu-latest'
+        py: '3.8'
+        img: 'ubuntu-latest'
+        only_pr: false
       UbuntuPython310:
-        python.version: '3.10'
-        imageName: 'ubuntu-latest'
+        py: '3.10'
+        img: 'ubuntu-latest'
+        only_pr: true
       WindowsPython38:
-        python.version: '3.8'
-        imageName: 'windows-latest'
+        py: '3.8'
+        img: 'windows-latest'
+        only_pr: false
       WindowsPython310:
-        python.version: '3.10'
-        imageName: 'windows-latest'
+        py: '3.10'
+        img: 'windows-latest'
+        only_pr: false
       MacOSPython38:
-        python.version: '3.8'
-        imageName: 'macOS-latest'
+        py: '3.8'
+        img: 'macOS-latest'
+        only_pr: false
       MacOSPython310:
-        python.version: '3.10'
-        imageName: 'macOS-latest'
-  ${{ if not(eq(variables['Build.Reason'], 'PullRequest')) }}:
-    matrix:
-      UbuntuPython310:
-        python.version: '3.10'
-        imageName: 'ubuntu-latest'
+        py: '3.10'
+        img: 'macOS-latest'
+        only_pr: false
 
+stages:
+  - stage: Test
+    jobs:
+      - ${{ each item in parameters.matrix }}:
+          ${{ if or(eq(variables['Build.Reason'], 'PullRequest'), item.value.on_pr) }}:
+            - job: ${{ item.Key }}
               pool:
-  vmImage: $(imageName)
-
+                vmImage: ${{ item.Value.img }}
               steps:
               - task: UsePythonVersion@0
                 inputs:
-    versionSpec: '$(python.version)'
-  displayName: 'Use Python $(python.version)'
+                  versionSpec: ${{ item.Value.py }}
+                displayName: 'Use Python ${{ item.Value.py }}'
 
               - script: |
                   python -m pip install pre-commit