[racket] raco setup broken if behind softlink

At Thu, 27 Feb 2014 10:07:27 -0500, Sam Tobin-Hochstadt wrote:
> On Thu, Feb 27, 2014 at 9:19 AM, Matthew Flatt <mflatt at cs.utah.edu> wrote:
> > The `raco setup` and `setup-plt` programs are the same, and the program
> > decides how to treat arguments based on the name used to run it. Since
> > your link is not called "raco", then it uses `setup-plt` mode, which
> > treats arguments as file names instead of collection names.
> 
> Would it be reasonable to reverse the sense of this test, and only
> behave like `setup-plt` if the program is called "setup-plt"?

It's more complicated than simply deciding that the opposite default
makes sense. The reason that `setup-plt` and `raco setup` are the same
program has to do with bootstrapping and compatibility, and that
constrains he implementation. I think there must be a better way to
implement the distinction, though.


> > You can work around the problem by supplying `-l` before
> > `mycollection`.
> >
> > At Thu, 27 Feb 2014 14:56:58 +0100, Tobias Hammer wrote:
> >> Hi,
> >>
> >> if i use a softlink on linux to call raco, raco setup behaves strangely
> >> different.
> >>
> >> Reproduce with
> >> raco setup -xiIdD --no-planet --avoid-main --force mycollection
> >> [compile output]
> >>
> >> ln -s `which raco` myraco
> >> ./myraco setup -xiIdD --no-planet --avoid-main --force mycollection
> >> open-input-file: cannot open input file
> >>    path: <<current director>>/mycollection
> >>    system error: No such file or directory; errno=2
> >>
> >>  From what i could trace, the link gets passed to racket via -N and raco
> >> setup somehow uses this to check what it should do. But from that on i am
> >> lost.
> >>
> >> I would be grateful for any hints if i am trying something evil or for
> >> possible workarounds.
> >>
> >> Tobias
> >>
> >>
> >>
> >> --
> >> Tobias Hammer
> >> DLR / Robotics and Mechatronics Center (RMC)
> >> Muenchner Str. 20, D-82234 Wessling
> >> Tel.: 08153/28-1487
> >> Mail: tobias.hammer at dlr.de
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