Re: branch --contains is unbearably slow [Re: [PATCHv2] Warnings before rebasing -i published history]

From: Thomas Rast <trast@student.ethz.ch>
Date: Jun 11, 2012, 22:08 UTC
Message-ID: <87bokp8ptd.fsf@thomas.inf.ethz.ch>
In-Reply-To: <87vcix8pz5.fsf@thomas.inf.ethz.ch>

Thomas Rast <trast@student.ethz.ch> writes:

Show 9 quoted lines

>> But
>>
>>     $ time git branch -r --contains next
>>       github2/next
>>       gph/next
>>       ko/next
>>       repo/next
>>
>>     real    0m3.853s

[...]

> I'll get rid of all this cruft now, but this command doesn't scale in
> the direction I'm abusing it :-)

BTW, my original point still stands: at nearly 4s per invocation of 'branch -r --contains', the loop as written by Lucien

Show 5 quoted lines

> +add_remoterefs () {
> +	while read -r command sha1 message
> +	do
> +		printf '%s\n' "$command $sha1 $message"
> +		git branch -r --contains "$sha1" >"$1.branch"

[...]

> +	done >"$1.published" <"$1"
> +	cat "$1.published" >"$1"
> +	rm -f "$1.published" "$1.branch"
> +}

is unusable in your repository, too. Which is a real pity, it's a nice idea.

-- 
Thomas Rast
trast@{inf,student}.ethz.ch