Re: [StGIT PATCH] Bash snippet to show branch and patch in bash prompt

From: Robin Rosenberg <robin.rosenberg@dewire.com>
Date: Oct 30, 2006, 10:32 UTC
Message-ID: <200610301132.45086.robin.rosenberg@dewire.com>
In-Reply-To: <4545CC6F.90001@tromer.org>

måndag 30 oktober 2006 10:57 skrev Eran Tromer:

> That's an annoying 430ms delay at every prompt, on my box. Does StGIT do
> something expensive on every invocation?

I don't type fast enough to notice really and my machine seems faster, ~300 ms per prompt.

Show 15 quoted lines

>
> Ben Clifford'd solution is pretty much instantaneous, and the following
> extends it to StGIT (in a less clean but much faster way):
>
> ----------------------------------------------
> __prompt_githead() {
>     __PS_GIT="$(git-symbolic-ref HEAD 2>/dev/null)" || exit
>     __PS_GIT="$(basename $__PS_GIT)"
>     echo -n " $__PS_GIT"
>     __PS_GIT=$(cat "${GIT_DIR:-.git}/patches/$__PS_GIT/current" \
>                2>/dev/null) || exit
>     echo -n ":$__PS_GIT"
> }
> PS1='[\u@\h \W$(__prompt_githead)]\$ '
> ----------------------------------------------

This doesn't work if the branch have a / in the name or if you are in a subdirectory, not the top level. Probably not hard to fix though.