Batched Build and Analyze for Pullrequests (Azure#48564)

* refactor `build` and `analyze` steps into their own step templates
* refactor the necessary pre-steps in front of `Create-PrJobMatrix` to a common template
* on pullrequests, 'build' and 'analyze' phases are now batched -- meaning we will duplicate the jobs as necessary

Author: scbedd

eng/pipelines/templates/jobs/batched-build-analyze.yml

@@ -0,0 +1,96 @@
+parameters:
+  - name: Artifacts
+    type: object
+    default: []
+  - name: TestPipeline
+    type: boolean
+    default: false
+  - name: ServiceDirectory
+    type: string
+    default: not-specified
+  - name: SDKType
+    type: string
+    default: all
+  - name: CheckAOTCompat
+    type: boolean
+    default: false
+  - name: AOTTestInputs
+    type: object
+    default: []
+  - name: BuildSnippets
+    type: boolean
+    default: true
+  - name: DependsOn
+    type: string
+    default: ''
+  - name: CloudConfig
+    type: object
+    default: {}
+  - name: Matrix
+    type: string
+  - name: UsePlatformContainer
+    type: boolean
+    default: false
+  - name: OSName
+    type: string
+
+jobs:
+  - job:
+    displayName: "Build"
+    dependsOn: ${{ parameters.DependsOn }}
+    condition: and(succeededOrFailed(), ne(${{ parameters.Matrix }}, '{}'))
+    strategy:
+      matrix: $[ ${{ parameters.Matrix }} ]
+
+    variables:
+    - template: /eng/pipelines/templates/variables/codeql.yml
+    - name: Codeql.BuildIdentifier
+      value: ${{ parameters.ServiceDirectory }}
+    - name: SDKType
+      value: ${{ parameters.SDKType }}
+
+    pool:
+      # 1es pipeline templates converts `image` to demands: ImageOverride under the hood
+      # which is incompatible with image selection in the default non-1es hosted pools
+      ${{ if eq(parameters.OSName, 'macOS') }}:
+        vmImage: $(OSVmImage)
+      ${{ else }}:
+        image: $(OSVmImage)
+      name: $(Pool)
+      os: ${{ parameters.OSName }}
+    ${{ if eq(parameters.UsePlatformContainer, 'true') }}:
+      # Add a default so the job doesn't fail when the matrix is empty
+      container: $[ variables['Container'] ]
+
+    steps:
+      - template: /eng/pipelines/templates/steps/build.yml
+        parameters:
+          Artifacts: ${{ parameters.Artifacts }}
+          TestPipeline: ${{ parameters.TestPipeline }}
+          ServiceDirectory: ${{ parameters.ServiceDirectory }}
+          SDKType: ${{ parameters.SDKType }}
+          CheckAOTCompat: ${{ parameters.CheckAOTCompat }}
+          AOTTestInputs: ${{ parameters.AOTTestInputs }}
+
+  - job:
+    displayName: "Analyze"
+    dependsOn: ${{ parameters.DependsOn }}
+    condition: and(succeededOrFailed(), ne(${{ parameters.Matrix }}, '{}'))
+
+    # allow duplication of the job by matrix
+    strategy:
+      matrix: $[ ${{ parameters.Matrix }} ]
+
+    # but immediately ignore the matrix for the job name
+    pool:
+      name: $(LINUXPOOL)
+      image: $(LINUXVMIMAGE)
+      os: linux
+
+    steps:
+      - template: /eng/pipelines/templates/steps/analyze.yml
+        parameters:
+          Artifacts: ${{ parameters.Artifacts }}
+          ServiceDirectory: ${{ parameters.ServiceDirectory }}
+          SDKType: ${{ parameters.SDKType }}
+          BuildSnippets: ${{ parameters.BuildSnippets }}