build: add MSAL single file publish workaround

Add a workaround for a bug in MSAL's loading of native dependencies when
published as a single file bundle.

Using the IncludeAddContentForSelfExtract option will cause all managed
and native dependencies to be extracted on first launch to a temporary
directory, and executed from there.

This only affects Windows as only Windows has support for the MSAL
runtime that requires the native dependencies.

Author: mjcheetham

src/shared/Git-Credential-Manager/Git-Credential-Manager.csproj

@@ -15,6 +15,33 @@
     <InvariantGlobalization>true</InvariantGlobalization>
   </PropertyGroup>
 
+  <PropertyGroup Condition="$(RuntimeIdentifier.StartsWith('win-'))">
+    <!--
+      Workaround a bug in MSAL when publishing as a single file on Windows.
+
+      The Microsoft.Identity.Client.NativeInterop.dll assembly is not able to
+      locate the native libraries when published as a single file and crashes.
+      This is due to the use of an unsupported API (Assembly::CodeBase).
+
+      Using the IncludeAllContentForSelfExtract property will cause the single
+      file to be extracted to a temporary directory and executed from there
+      (including all native and managed assemblies).
+
+      <ISSUE>
+    -->
+    <IncludeAllContentForSelfExtract>true</IncludeAllContentForSelfExtract>
+
+    <!--
+      Prefer to reduce the size of the single file by compressing the containing
+      assemblies. This will increase the startup time of the application, but
+      since we're using the IncludeAllContentForSelfExtract property onWindows,
+      the cost of decompressing the assemblies is only paid on the first launch.
+      Keeping the assembly size small is important because we are bundled inside
+      of Git for Windows and we don't want to bloat their distribution.
+    -->
+    <EnableCompressionInSingleFile>true</EnableCompressionInSingleFile>
+  </PropertyGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Atlassian.Bitbucket\Atlassian.Bitbucket.csproj" />
     <ProjectReference Include="..\GitHub\GitHub.csproj" />