[Ironruby-core] rexml/document with IronRuby

Jim Deville jdeville at microsoft.com
Sat Jan 16 01:15:25 EST 2010


I don't remember the exact command, but there is a method... SetupSearchPath or something like that (it's on my computer which needs to charge).

JD



________________________________
From: Orion Edwards <orion.edwards at gmail.com>
Sent: Friday, January 15, 2010 9:52 PM
To: ironruby-core at rubyforge.org <ironruby-core at rubyforge.org>
Subject: Re: [Ironruby-core] rexml/document with IronRuby

While I agree that changing the app.config is a common task, and it's easy if you're just shipping a single standalone app, it's a giant pain in the ass if you're having to upgrade an existing installation, or integrate with another program. (Outlook.exe.config anyone??)
I've seen a fair few .net apps move their configuration OUT of app.config and into the registry because of things like that.

Is there a way that we can set the library path and other such things programatically (eg: RubyEngine.LoadPath = "blah"), etc? That would be much nicer than app.config mangling :-(

Cheers, Orion


On 16/01/2010, at 8:09 AM, Jimmy Schementi wrote:

This configuration, setting different paths etc is too much a hassle for developers.

Let's go over what "configuration, setting different paths etc" actually means:

- When using ir.exe directly?

 Nothing, the Ruby standard library just works.

- When embedding IronRuby inside a .NET app?

 Just telling your C# app where IronRuby's libraries are:
 1. Copy ir.exe.config into your app.config
 2. Make sure LibraryPaths still make sense. Making these full-paths is easiest,
    So just replace the ".." with "C:\IronRuby" (or wherever you extracted a IronRuby
    release to ... for example this is the LibraryPaths for a C:\IronRuby installation:
    C:\IronRuby\lib\IronRuby;C:\IronRuby\lib\ruby\site_ruby\1.8;C:\IronRuby\lib\ruby\site_ruby;C:\IronRuby\lib\ruby\1.8

And that's it. So please, let me know how this could be too much hassle for you.
Sure, embedding isn't "one-click", but don't blow it up to be more than it really is.
Please let us know if you've found any real ship-stopping bugs.

Note that ir.exe.config uses relative paths as we have no idea where someone will
unzip the release to. With the MSI we can possibly generate ir.exe.config to use
full paths, but that would be very low on our list of stuff to do for 1.0. Also,
if we release VS integration in the future, generating the correct app.config
for embedding is also a possibility.

However, for embedding, presumably you are going to want to put the libraries
into your application's directory, so you do really care about where the paths
are, which is why we don't somehow magically find them.

~Jimmy



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