Run incremental component check earlier, save additional CI time

.github/workflows/build.yml

@@ -76,15 +76,30 @@ jobs:
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Get changed components
+        run: |
+          $changedComponents = $(./tooling/Get-Changed-Components.ps1 ${{ github.event.before }} ${{ github.event.after }})
+          $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets ${{ matrix.multitarget }} -WinUIMajorVersion ${{ matrix.winui }})
+          echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "$_" }) -join ',')" >> $env:GITHUB_ENV
+          echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
+
       - name: Configure Pagefile
+        if: ${{ env.ENABLE_DIAGNOSTICS == 'true' && env.HAS_BUILDABLE_COMPONENTS == 'true' }}
         uses: al-cheb/[email protected]
         with:
           minimum-size: 32GB
           maximum-size: 32GB
           disk-root: "C:"
 
       - name: Enable User-Mode Dumps collecting
-        if: ${{ env.ENABLE_DIAGNOSTICS == 'true' || env.COREHOST_TRACE != '' }}
+        if: ${{ (env.ENABLE_DIAGNOSTICS == 'true' || env.COREHOST_TRACE != '') && env.HAS_BUILDABLE_COMPONENTS == 'true' }}
         shell: powershell
         run: |
           New-Item '${{ github.workspace }}\CrashDumps' -Type Directory
@@ -93,6 +108,7 @@ jobs:
           Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps' -Name 'DumpType' -Type DWord -Value '2'
 
       - name: Install .NET SDK v${{ env.DOTNET_VERSION }}
+        if: ${{ env.ENABLE_DIAGNOSTICS == 'true' }}
         uses: actions/setup-dotnet@v4
         with:
           dotnet-version: ${{ env.DOTNET_VERSION }}
@@ -101,19 +117,13 @@ jobs:
         if: ${{ env.ENABLE_DIAGNOSTICS == 'true' }}
         run: dotnet --info
 
-      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - name: Checkout Repository
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-          fetch-depth: 0
-
       # Restore Tools from Manifest list in the Repository
       - name: Restore dotnet tools
+        if: ${{ env.HAS_BUILDABLE_COMPONENTS == 'true' }}
         run: dotnet tool restore
 
       - name: Run Uno Check to Install Dependencies
-        if: ${{ matrix.multitarget != 'wasdk' && matrix.multitarget != 'linuxgtk' && matrix.multitarget != 'wpf' }}
+        if: ${{ matrix.multitarget != 'wasdk' && matrix.multitarget != 'linuxgtk' && matrix.multitarget != 'wpf' && env.HAS_BUILDABLE_COMPONENTS == 'true' }}
         run: >
           dotnet tool run uno-check 
           --ci
@@ -127,15 +137,9 @@ jobs:
 
       - name: Add msbuild to PATH
         uses: microsoft/setup-msbuild@v2
+        if: ${{ env.HAS_BUILDABLE_COMPONENTS == 'true' }}
         with:
           vs-version: '[17.9,)'
-            # Get changed components
-      - name: Get changed components
-        run: |
-          $changedComponents = $(./tooling/Get-Changed-Components.ps1 ${{ github.event.before }} ${{ github.event.after }})
-          $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets ${{ matrix.multitarget }} -WinUIMajorVersion ${{ matrix.winui }})
-          echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "$_" }) -join ',')" >> $env:GITHUB_ENV
-          echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
 
       # Generate full solution with all projects (sample gallery heads, components, tests)
       - name: Generate solution with ${{ matrix.multitarget }} gallery, components and tests