On Thu, Sep 27, 2012 at 03:31:10PM -0700, Junio C Hamano wrote:
> SZEDER Gábor <sze...@ira.uka.de> writes:
> > On Wed, Sep 26, 2012 at 05:57:00PM -0400, Jeff King wrote:
> >> +          COMPREPLY[$i]="${COMPREPLY[$i]}$stripped"
> >
> > This reminded me to a mini-series collecting dust in my git repo,
> > which converts a few similar var=$var$something constructs to use the
> > += append operator instead.
> Is the benefit of rewriting it to var+=$something large enough to
> worry about the below?

That way we can get rid of a subshell in __gitcomp(), which means one
less fork() during every command or option completion for Windows
folks.  We can also get rid of two subshells during loading the
completion script.

And I would spare myself from a couple of merge conflicts, too ;)

> > Now, Bash supports this += append operator since v3.1
> > (bash-3.1-alpha1, to be exact), which is around since July 2005, if I
> > can trust the mtime at ftp://ftp.cwru.edu/pub/bash/.  MSysgit ships
> > v3.1 so it already supports this, too.  So, what is the oldest Bash
> > version we care about for completion?

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