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From: Stephen Boyd <bebarino@gmail.com>
To: Johannes Sixt <j.sixt@viscovery.net>
Cc: "Shawn O. Pearce" <spearce@spearce.org>,
	Junio C Hamano <gitster@pobox.com>,
	git@vger.kernel.org
Subject: Re: [PATCH 1/3] completion: fix alias listings with newlines
Date: Wed, 07 Oct 2009 11:55:19 -0700	[thread overview]
Message-ID: <4ACCE417.5080907@gmail.com> (raw)
In-Reply-To: <4ACC6055.1070204@viscovery.net>

Johannes Sixt wrote:
> Is it necessary to change the body of the loop? Your version spawns two
> processes on each iteration, while the original spawned no processes.
>
> You can avoid the pipeline (i.e. yet another process) using a "here-string":
>
> 	local i aliases=$(git --git-dir="$(__gitdir)" config -z \
> 				--get-regexp "alias\..*" 2>/dev/null)
> 	while IFS= read -rd '' i; do
> 		i="${i#alias.}"
> 		echo "${i/ */}"	# could be: echo "${i%% *}"
>   	done <<< "$aliases"
>
> but I don't know how well bash handles variable values with embedded NULs.

I can't get the above snippet to work, but maybe I'm doing something wrong.

I had a problem with the newline between the key and the value. bash
gives me the whole line in the loop, but when I try to trim it $i is
treated as two values. I couldn't figure out any other way to do it,
besides piping $i to cut or tr.

Maybe a better solution would be to add --keys-only or something to
git-config?

  reply	other threads:[~2009-10-07 18:59 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-07  8:48 [PATCH 1/3] completion: fix alias listings with newlines Stephen Boyd
2009-10-07  8:48 ` [PATCH 2/3] completion: update am, commit, and log Stephen Boyd
2009-10-07  8:48   ` [PATCH 3/3] completion: add dirstat and friends to diff options Stephen Boyd
2009-10-07 19:45     ` Junio C Hamano
     [not found]     ` <20091007205059.GA16235@neumann>
2009-10-07 23:07       ` Junio C Hamano
     [not found]         ` <20091007233442.GJ6055@neumann>
2009-10-08  0:11           ` Stephen Boyd
2009-10-08  4:32         ` Shawn O. Pearce
2009-10-07 19:45   ` [PATCH 2/3] completion: update am, commit, and log Junio C Hamano
2009-10-07  9:33 ` [PATCH 1/3] completion: fix alias listings with newlines Johannes Sixt
2009-10-07 18:55   ` Stephen Boyd [this message]
2009-10-08  4:29     ` Shawn O. Pearce
2009-10-08  7:34       ` Stephen Boyd
2009-10-08  7:54         ` Johannes Sixt
2009-10-08  8:01           ` Stephen Boyd
2009-10-08  8:10             ` Johannes Sixt

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