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Message-ID: <42CFBE28.3060808@byu.net>
Date: Sat, 09 Jul 2005 06:08:08 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: Unwanted .exe appended to symlinks
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According to Christopher Faylor on 7/8/2005 11:02 PM:
> I don't get it.  Certainly /cygdrive/c.exe doesn't exist so why would you
> try to link to it?

The algorithm I used was this:

1 - If source exists [determined by the return value of readlink
("source"), although just now I realized that for symbolic links, it
should really be the return value of readlink (concat (dirname ("dest"),
"source")) since symbolic links are relative to the destination, not the pwd]
 2a - if source is non-symlink and exists with a trailing . [determined by
access ("source.")] use "source", else use "source.exe", because one of
those two spellings must have made test 1 succeed
 2b - if source is symlink and exists with a trailing .lnk [determined by
readlink ("source.lnk")] use "source", else use "source.exe", because one
of those two spellings must have made test 1 succeed

I think the cleanup needs to be along these lines - in steps 2a and 2b, do
a sanity check of also checking whether "source.exe" exists.  If neither
"source." nor "source.exe" exist, we must be on a virtual/managed drive
where the trailing . trick doesn't work, so fall back to "source".
"source.exe" should only be chosen when we can prove that "source" doesn't
exist but "source.exe" does.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
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