Add VMR build for internal installer PRs (#15644)

eng/pipelines/templates/jobs/vmr-build.yml

@@ -71,7 +71,7 @@ jobs:
   - template: /eng/common/templates/variables/pool-providers.yml
   - ${{ if eq(variables['System.TeamProject'], 'internal') }}:
     - group: AzureDevOps-Artifact-Feeds-Pats
-  - ${{ if and(not(parameters.isBuiltFromVmr), eq(variables['System.TeamProject'], 'internal')) }}:
+  - ${{ if and(not(parameters.isBuiltFromVmr), eq(variables['System.TeamProject'], 'internal'), not(startswith(parameters.vmrBranch, 'internal/release/'))) }}:
     - group: DotNetBot-GitHub
   - ${{ else }}:
     - name: BotAccount-dotnet-bot-repo-PAT

eng/pipelines/templates/jobs/vmr-synchronization.yml

@@ -25,15 +25,16 @@ jobs:
   - template: /eng/common/templates/variables/pool-providers.yml
   - name: vmrPath
     value: $(Agent.BuildDirectory)/vmr
-  - ${{ if and( eq(variables['System.TeamProject'], 'internal'), or(startswith(variables['Build.SourceBranch'], 'refs/heads/release/'), eq(variables['Build.SourceBranch'], 'refs/heads/main'))) }}:
-    - group: DotNetBot-GitHub
-    - group: DotNetBot-GitHub-No-Scopes
-    - name: vmrPublicUrl
-      value: https://github.com/dotnet/dotnet
-  - ${{ if and( eq(variables['System.TeamProject'], 'internal'), startswith(variables['Build.SourceBranch'], 'refs/heads/internal/release/')) }}:
-    - group: DotNetBot-AzDO-PAT
-    - name: vmrInternalUrl
-      value: https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-dotnet
+  - ${{ if not(parameters.noPush) }}:
+    - ${{ if and( eq(variables['System.TeamProject'], 'internal'), or(startswith(variables['Build.SourceBranch'], 'refs/heads/release/'), eq(variables['Build.SourceBranch'], 'refs/heads/main'))) }}:
+      - group: DotNetBot-GitHub
+      - group: DotNetBot-GitHub-No-Scopes
+      - name: vmrPublicUrl
+        value: https://github.com/dotnet/dotnet
+    - ${{ if and( eq(variables['System.TeamProject'], 'internal'), startswith(variables['Build.SourceBranch'], 'refs/heads/internal/release/')) }}:
+      - group: DotNetBot-AzDO-PAT
+      - name: vmrInternalUrl
+        value: https://dnceng@dev.azure.com/dnceng/internal/_git/dotnet-dotnet
   
   pool:
     ${{ if eq(variables['System.TeamProject'], 'public') }}:

eng/pipelines/vmr-build-internal.yml

@@ -0,0 +1,53 @@
+trigger: none
+pr:
+  branches:
+    include:
+    - main
+    - release/*
+    - internal/release/*
+
+parameters:
+- name: vmrBranch
+  displayName: dotnet/dotnet branch to use
+  type: string
+  default: ' '
+
+- name: disableVmrBuild
+  displayName: Skip source-building the VMR
+  type: boolean
+  default: false
+
+variables:
+- ${{ if ne(parameters.vmrBranch, ' ') }}:
+  - name: VmrBranch
+    value: ${{ replace(parameters.vmrBranch, ' ', '') }}
+- ${{ else }}:
+  - name: VmrBranch
+    value: ${{ replace(replace(variables['System.PullRequest.TargetBranch'], 'refs/heads/', ''), 'refs/pull/', '') }}
+
+resources:
+  repositories:
+  - repository: vmr
+    type: git
+    name: dotnet-dotnet
+    ref: $(VmrBranch)
+
+stages:
+# You can temporarily disable the VMR Build stage by changing the default of disableVmrBuild
+- ${{ if not(parameters.disableVmrBuild) }}:
+  - template: templates/stages/vmr-build.yml
+    parameters:
+      vmrBranch: ${{ variables.VmrBranch }}
+      isBuiltFromVmr: false
+
+# In case the VMR Build stage is temporarily disabled, the VMR synchronization step is run to validate
+# that the PR can be merged and later synchronized into the VMR without problems.
+- ${{ else }}:
+  - stage: Synchronize_VMR
+    displayName: Synchronize VMR
+    dependsOn: []
+    jobs:
+    - template: templates/jobs/vmr-synchronization.yml
+      parameters:
+        vmrBranch: ${{ variables.VmrBranch }}
+        noPush: true

eng/pipelines/vmr-build.yml

@@ -50,3 +50,4 @@ stages:
     - template: templates/jobs/vmr-synchronization.yml
       parameters:
         vmrBranch: ${{ variables.VmrBranch }}
+        noPush: true