Re: [PATCH] prompt: fix show upstream with svn and zsh

From: SZEDER Gábor <szeder@ira.uka.de>
Date: May 21, 2013, 22:41 UTC
Message-ID: <20130521224119.GF30969@goldbirke>
In-Reply-To: <1369169667-25166-1-git-send-email-t.gummerer@gmail.com>

Hi,

On Tue, May 21, 2013 at 10:54:27PM +0200, Thomas Gummerer wrote:

Show 8 quoted lines

> Currently the __git_ps1 git prompt gives the following error with a
> repository converted by git-svn, when used with zsh:
> 
> 	   __git_ps1_show_upstream:19: bad pattern: svn_remote[
> 
> This was introduced by 6d158cba (bash completion: Support "divergence
> from upstream" messages in __git_ps1), when the script was for bash
> only.  Make it compatible with zsh.

What is the actual cause of this problem/incompatibility and how/why do these changes fix it?

> -			svn_remote[ $((${#svn_remote[@]} + 1)) ]="$value"
> +			svn_remote[$((${#svn_remote[@]} + 1))]="$value"

I mean, did zsh really complained because of the space after the '[' ?!

Show 10 quoted lines

> @@ -146,8 +146,8 @@ __git_ps1_show_upstream ()
>  	svn*)
>  		# get the upstream from the "git-svn-id: ..." in a commit message
>  		# (git-svn uses essentially the same procedure internally)
> -		local svn_upstream=($(git log --first-parent -1 \
> -					--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null))
> +		set -a svn_upstream "$(git log --first-parent -1 \
> +					--grep="^git-svn-id: \(${svn_url_pattern#??}\)" 2>/dev/null)"
>  		if [[ 0 -ne ${#svn_upstream[@]} ]]; then
>  			svn_upstream=${svn_upstream[ ${#svn_upstream[@]} - 2 ]}

If so, then what about this one?

Best, Gábor