From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Wed, 09 Apr 2014 20:36:38 GMT
Subject: Re: [PATCH 5/5] completion: fix completion of certain aliases
Message-ID: <5345af56dec8c_537810af310b9@nysa.notmuch>
In-Reply-To: <xmqqa9bu1enk.fsf@gitster.dls.corp.google.com>

Junio C Hamano wrote:
> Felipe Contreras <felipe.contreras@gmail.com> writes:
> 
> > Some commands need the first word to determine the actual action that is
> > being executed, however, the command is wrong when we use an alias, for
> > example 'alias.p=push', if we try to complete 'git p origin ', the
> > result would be wrong because __git_complete_remote_or_refspec() doesn't
> > know where it come from.
> >
> > So let's override words[1], so the alias 'p' is override by the actual
> > command, 'push'.
> >
> > Reported-by: Aymeric Beaumet <aymeric.beaumet@gmail.com>
> > Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
> > ---
> 
> Does "some commands" above refer to anything that uses
> __git_complete_remote_or_refspec, or is the set of commands larger than that?

For this particular issue, yes, the former.

> But perhaps we muck with the contents of words[] in a similar way in many
> different places in the existing completion code often enough that such an
> attempt not to touch the words[] array does not buy us much safety anyway.  I
> didn't check (and that is why I am asking with "I am wondering...").

The 'words' array is already messed up and not used correctly, so I wouldn't
worry too much about this patch messing it more (I don't see how that can be).

For example:
  % git --git-dir=$PWD/.git fetch or<tab>

-- 
Felipe Contreras