Use property for placeholder simulation

Azure · Dec 5, 2024 · 03c6985 · 03c6985
1 parent 623f5b5
commit 03c6985
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Showing 2 changed files with 10 additions and 2 deletions.
diff --git a/eng/build/Engineering.props b/eng/build/Engineering.props
@@ -31,7 +31,10 @@
 
   <Import Project="$(MSBuildThisFileDirectory)Release.props" />
 
-  <!-- Uncomment below to run with placeholder simulation enabled. -->
-  <!-- <Import Project="$(MSBuildThisFileDirectory)PlaceholderSimulation.props" /> -->
+  <!-- To use PlaceholderSimulation:
+    1. Set env variable PlaceholderSimulation=true
+    2. OR build with -p:PlaceholderSimulation=true
+  -->
+  <Import Project="$(MSBuildThisFileDirectory)PlaceholderSimulation.props" Condition="'$(PlaceholderSimulation)' == 'true'"/>
 
 </Project>
diff --git a/eng/build/PlaceholderSimulation.props b/eng/build/PlaceholderSimulation.props
@@ -1,6 +1,7 @@
 <Project>
 
   <PropertyGroup>
+    <!-- This should already be true. But adding here for good measure. -->
     <PlaceholderSimulation>true</PlaceholderSimulation>
     <DefineConstants>$(DefineConstants)PLACEHOLDER_SIMULATION;</DefineConstants>
   </PropertyGroup>
@@ -9,4 +10,8 @@
     <Error Text="PlaceholderSimulation is enabled, but CI is true. PlaceholderSimulation is not allowed in CI." />
   </Targets>
 
+  <Targets Name="_PlaceholderFailIfWrongValue" BeforeTargets="Build" Condition="'$(PlaceholderSimulation)' != 'true'">
+    <Error Text="Expected 'PlaceholderSimulation' to be 'true'. Actual value: '$(PlaceholderSimulation)'." />
+  </Targets>
+
 </Project>