Flag if this is a continuous integration build

JeremyCaney · JeremyCaney · commit 0b6c92ac2991 · 2021-02-19T13:04:43.000-08:00
This helps SourceLink determine that this is a _deterministic_ build.
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -19,4 +19,8 @@
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">
+    <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
+  </PropertyGroup>
+
 </Project>
