Re: [PATCH] scripts: hash: Add --exclude-.git option.

[ludo@gnu.org (Ludovic Courtès)]

Vincent Legoll <vincent.legoll@gmail.com> skribis:

> On Mon, Sep 5, 2016 at 11:33 PM, Ludovic Courtès <ludo@gnu.org> wrote:
>> Hello!
>>
>> Jan Nieuwenhuizen <janneke@gnu.org> skribis:
>>
>>> Added an -g/--exclude-.git option for guix hash.  It is very specific:
>>> it skips toplevel .git directory.  WDYT?
>>
>> Good idea!
>>
>>> From 86a580840f21f858b757cb7f421b0ba1c169e09d Mon Sep 17 00:00:00 2001
>>> From: Jan Nieuwenhuizen <janneke@gnu.org>
>>> Date: Mon, 5 Sep 2016 10:27:19 +0200
>>> Subject: [PATCH] scripts: hash: Add --exclude-.git option.
>>>
>>> * guix/scripts/hash.scm (show-help): Add help text for --exclude-.git option.
>>> (%options): Add --exclude-.git option.
>>> (guix-hash): Handle exclude-.git option.
>>> * doc/guix.texi ("invoking guix hash"): Update doc.
>>                     ^
>> Capital I.  :-)
>>
>>> * tests/guix-hash.sh: Add test.
>>>  @table @code
>>>
>>> +@item --exclude-.git
>>> +@itemx -g
>>
>> What about --exclude-vcs/-x?  Tar uses that name, although with slightly
>> different semantics (info "(tar) exclude").
>>
>>> +         (select? (if (assq-ref opts 'exclude-.git)
>>> +                      (lambda (f s) (not (string= f "./.git")))
>>
>> Rather make the lambda a top-level procedure, like:
>>
>>   (define (vcs-file? file stat)
>>     (case (stat:type stat)
>>       ((directory)
>>        (member (basename file) '(".git" ".svn" "CVS" …)))
>
> Could this not come from each vcs package ?
>
> i.e. each vcs package defines a vcs-dir which get put together in a global
> %vcs-dirs variable that is used here ?
>
> I ask because that's how I did it in meld (which I'll try to package for guix)
> in a distant past...
>
> WDYT, overdesigned ?

Respectfully, I think so.  :-)

Ludo’.