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Re: executable-find in files.el
From: |
Stefan Monnier |
Subject: |
Re: executable-find in files.el |
Date: |
Thu, 12 May 2005 08:42:32 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
>> > Yes. But since you obviously didn't read my identical comment posted
>> > in response to your suggestion to do what you just did in this version
>> > of executable-find (or perhaps you read it, but disregarded it), I
>> > posted the same comment again.
>>
>> Hmm... I replied to it in
>> http://lists.gnu.org/archive/html/emacs-devel/2005-05/msg00381.html but
>> haven't seen any answer.
> That's not the comment I meant. I meant what I said here:
> http://lists.gnu.org/archive/html/emacs-devel/2005-05/msg00379.html
> which got no responses.
I don't see any difference in actual content. Both messages basically say
"subtle differences, thus file-executable-p", so msg00379 is also the answer
I'd have given.
>> Fine, but as long as noone changes call-process to do something meaningful
>> when requested to execute a file which is only available via
>> a file-name-handler, I think we should stick to 1 because I think it's more
>> important to match the behavior of call-process (as I wrote in the comment).
> I think we don't know what is more important. Software is funny: it
> can use the infrastructure in ways that are unimaginable when the
> infrastructure was written. That is why infrastructure needs to be
> consistent. I'm sure I'm not saying anything you didn't already know.
Of course, I don't know, but I grepped for uses and they seem to corroborate
my intuition.
>> But, really, this is all academic anyway since I don't know of anyone who
>> has funny file-name-handled directories on her exec-path.
> That's not the only difference between openp and file-executable-p.
> Please compare check_executable and openp, and you will see that:
> . on Windows, check_executable uses stat to verify executability
> . on Posix systems, check_executable uses euidaccess if it's available
> . by contrast, openp always uses access
> These are subtle differences, but they are real.
These are too subtle for me, indeed. Are you saying that:
1- call-process on w32 doesn't use check_executable but should
2- are you saying that call-process on w32 does use check_executable whereas
a "1" arg to locate-file doesn't, and thus that a `file-executable-p' arg
to locate-file better mimicks call-process on w32.
If (1), it's beyond the scope of my patch.
Stefan
Re: executable-find in files.el, Michael Albinus, 2005/05/14
- Re: executable-find in files.el, Richard Stallman, 2005/05/14
- Re: executable-find in files.el, Michael Albinus, 2005/05/17
- Re: executable-find in files.el, Stefan Monnier, 2005/05/17
- Re: executable-find in files.el, Kim F. Storm, 2005/05/17
- Re: executable-find in files.el, Stefan Monnier, 2005/05/17
- Re: executable-find in files.el, Richard Stallman, 2005/05/18
Re: executable-find in files.el, Richard Stallman, 2005/05/17
Re: executable-find in files.el, Michael Albinus, 2005/05/17