[racket] Symlinking Racket programs

In article <1362029952.21030%dtp at mindstory.com>,
 "David T. Pierson" <dtp at mindstory.com> 
 wrote:

> On Tue, Feb 26, 2013 at 06:40:23PM -0600, Brian Mastenbrook wrote:
> > What is the expected behavior of module resolution when symlinking a 
> > Racket program, particularly one executed as a script using a shebang 
> 
> I think Racket is doing the right thing here.  If it did what you seem
> to be expecting, then a working setup would break when replacing a
> non-symlinked file with a symlink to a file with the same contents in
> another directory.  I don't think Racket should be trying to defeat the
> abstraction mechanism that symlinks provide.

That's a good point; I think the difference in mental model I have here 
is that I naturally expected linking a top-level executable file to a 
different directory to work. I wouldn't necessarily expect it to work 
that way for ordinary modules.

> I'd like to offer an alternative solution for you but I'm not sure I
> understand your requirements exactly.  Can't you just use a shell
> script?  Something like:
> 
> #!/bin/sh
> exec racket /path/to/foo/foo.rkt "$@"

That's pretty much what "raco exe -l" does now. It works, as do a 
variety of other solutions (including just regular "raco exe"), but I 
was still somewhat surprised in this case. Perhaps my intuitions led me 
astray.

-- 
Brian Mastenbrook
brian at mastenbrook.net
http://brian.mastenbrook.net/