Re: [PATCH] bash completion: add space between branch name and status flags

[Junio C Hamano <gitster@pobox.com>]

"Shawn O. Pearce" <spearce@spearce.org> writes:

> Nanako Shiraishi <nanako3@lavabit.com> wrote:
>> Junio, could you tell us what happened to this thread?
>> 
>> In response to a patch from Roman Fietze to outline a better way
>> to do it.  Nothing happened.
>
> Junio responded with a suggestion on how to improve the patch when
> GIT_PS1_SHOWDIRTYSTATE was not set, but Roman Fietze didn't send
> a revised patch, so it got dropped.
>
> Here is the revised patch, Junio, still think its a good idea?

Thanks for following up.

As I don't use $[wisu] myself, I don't have a very strong opinion either
way, but the user has spent cycles to compute them, so we'd better present
them in a way that is easier to read, I guess.

> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
> index fbfa5f2..3c8b6df 100755
> --- a/contrib/completion/git-completion.bash
> +++ b/contrib/completion/git-completion.bash
> @@ -163,10 +163,12 @@ __git_ps1 ()
>  			fi
>  		fi
>  
> +		local f="$w$i$s$u"
> +		f="${f:+ $f}$r"
>  		if [ -n "${1-}" ]; then
> -			printf "$1" "$c${b##refs/heads/}$w$i$s$u$r"
> +			printf "$1" "$c${b##refs/heads/}$f"
>  		else
> -			printf " (%s)" "$c${b##refs/heads/}$w$i$s$u$r"
> +			printf " (%s)" "$c${b##refs/heads/}$f"
>  		fi

I notice that printf argument look very similar.  Maybe we want to do
something like

    printf "${1:-" (%s)"}" ...

to avoid duplication?