Deploying RPS scripts with DeployRpsAddin

I know nobody is checking the code I check into the RevitPythonShell code repository, because nobody bothered to ask me about the new killer feature i sneaked in. For a project at work that I used the RevitPythonShell for, the need arose to deploy a bunch of scripts on a customers computer. Now, RPS itself has a simple installer that you can execute and go next, next, next, finish and voilà, you have RPS installed on your computer. But... any scripts you write need to be copied to the customers computer, then RPS has to be installed and configured to pick up the script. Oh, and don't forget to install cpython and any modules you make use of.
Have you tried writing instructions for such a manual installation procedure? I have. It is not fun at all! I have also tried to get people to execute these instructions. It just doesn't fly.
This is where the new feature of RPS comes in: In the Ribbon, there is now an additional button called "Deploy RpsAddin" that is located under the button for starting the shell, just above the one for customizing RPS.
Deploying an RPS script as a standalone addin involves choosing an xml file that acts as a manifest or package description of the addin you are about to create. Basically, you describe which python scripts to assign to which buttons and it creates a new dll for you that includes all these scripts and can be used as an addin in Revit. You just need to write an addin manifest and place it in the right position.
The source comes with an example addin called HelloWorld. That really is all it does: a Button that prints "Hello, World!" to the screen. But I include the xml deployment file and also an InnoSetup script to get you started on deploying your own addins.
When you want to include a cpython library, you will need to make sure that this is also in the search path of the addin's bundled interpreter. So, the addin includes a bunch of files, dlls, a version of IronPython (2.7) and also the new RpsRuntime dll that handles the parts of RPS that get used by both the standard RPS version and deployed addins.
You can include cpython modules in your setup program, copying them for instance into your installation directory and then go from there. There is an equivalent of the RevitPythonShell2013.xml file that gets deployed with your addin to the %AppData% folder that you can use for setting up stuff.
The structure of the deployment xml file looks like this: (I will call it RpsAddin xml file from now on)

<?xml version=" 1.0" encoding=" utf-8" ?>
<RpsAddin>
  <RibbonPanel text=" Hello World">
    <!-- the script is always searched relative to the location of the RpsAddin xml file -->
    < PushButton text="Hello World! " src="helloworld.py "/>
  </RibbonPanel>
</RpsAddin>

You can add as many RibbonPanel tags as you would like. Each PushButton is then placed on that panel and assigned to the script. The path to the script is relative to the RpsAddin xml file. The DLL that gets created is placed in a folder "Output_YOUR_RPSADDIN_NAME" relative to the RpsAddin xml. The name of your addin is taken from the name you call the RpsAddin xml file. In this case, the file is called "HelloWorld.xml", so the Addin will be called "HelloWorld", a folder "Output_HelloWorld" is created with the dll "HelloWorld.dll", "RpsRuntime.dll" and a bunch of IronPython dlls.
You can then use an InnoSetup file to create an installer for this. The HelloWorld example comes with this file:

[Files]
Source: Output_HelloWorld\RpsRuntime.dll; DestDir: {app};
Source: Output_HelloWorld\IronPython.dll; DestDir: {app};
Source: Output_HelloWorld\IronPython.Modules.dll; DestDir: {app};
Source: Output_HelloWorld\Microsoft.Scripting.Metadata.dll; DestDir: {app};
Source: Output_HelloWorld\Microsoft.Dynamic.dll; DestDir: {app};
Source: Output_HelloWorld\Microsoft.Scripting.dll; DestDir: {app};

; this is the main dll with the script embedded
Source: Output_HelloWorld\HelloWorld.dll; DestDir: {app};

; add a similar line, if your addin requires a configuration file (search paths or predefined variables)
;Source: HelloWorld.xml; DestDir: {userappdata}\HelloWorld; Flags: onlyifdoesntexist;

[code]
{ install revit manifest file }
procedure CurStepChanged(CurStep: TSetupStep);
var
  AddInFilePath: String;
  AddInFileContents: String;
begin

  if CurStep = ssPostInstall then
  begin

  { GET LOCATION OF USER AppData (Roaming) }
  AddInFilePath := ExpandConstant('{userappdata}\Autodesk\Revit\Addins\2013\HelloWorld.addin');

  { CREATE NEW ADDIN FILE }
  AddInFileContents := '<?xml version="1.0" encoding="utf-8" standalone="no"?>' + #13#10;
  AddInFileContents := AddInFileContents + '<RevitAddIns>' + #13#10;
  AddInFileContents := AddInFileContents + '  <AddIn Type="Application">' + #13#10;
    AddInFileContents := AddInFileContents + '    <Name>HelloWorld</Name>' + #13#10;
  AddInFileContents := AddInFileContents + '    <Assembly>'  + ExpandConstant('{app}') + '\HelloWorld.dll</Assembly>' + #13#10;

  { NOTE: create your own GUID here!!! }
  AddInFileContents := AddInFileContents + '    <AddInId>276D41F2-CCC4-4B55-AF2A-47D30227F289</AddInId>' + #13#10;

  AddInFileContents := AddInFileContents + '    <FullClassName>HelloWorld</FullClassName>' + #13#10;

  { NOTE: you should register your own VendorId with Autodesk }
  AddInFileContents := AddInFileContents + '  <VendorId>RIPS</VendorId>' + #13#10;
  AddInFileContents := AddInFileContents + '  </AddIn>' + #13#10;
  AddInFileContents := AddInFileContents + '</RevitAddIns>' + #13#10;
  SaveStringToFile(AddInFilePath, AddInFileContents, False);

  end;
end;

{ uninstall revit addin manifest }
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
var
  AddInFilePath: String;
begin
  if CurUninstallStep = usPostUninstall then
  begin
    AddInFilePath := ExpandConstant('{userappdata}\Autodesk\Revit\Addins\2013\HelloWorld.addin');

    if FileExists(AddInFilePath) then
    begin
      DeleteFile(AddInFilePath);
    end;
  end;
end;


[Setup]
AppName=HelloWorld
AppVerName=HelloWorld
RestartIfNeededByRun=false
DefaultDirName={pf32}\HelloWorld
OutputBaseFilename=Setup_HelloWorld
ShowLanguageDialog=auto
FlatComponentsList=false
UninstallFilesDir={app}\Uninstall
UninstallDisplayName=HelloWorld
AppVersion=2012.0
VersionInfoVersion=2012.0
VersionInfoDescription=HelloWorld
VersionInfoTextVersion=HelloWorld

I included some Pascal code for installing an addin manifest to the %APPDATA% folder. This is generally something like C:\Users\username\AppData\Roaming\ADDIN_NAME. Running this setup will produce a file called Setup_Helloworld.exe that can then be given to your friends to try out your new cool HelloWorld Revit Addin, coded in the sweet python language we all love so much!