Subject: Re: [PATCH v3] stash: handle specifying stashes with spaces

From: Junio C Hamano <[email-masked]>
Date: Tue, 07 Jan 2014 10:42:39 -0800

Øystein Walle <[email-masked]> writes:

> When trying to pop/apply a stash specified with an argument containing
> spaces git-stash will throw an error:
>
>     $ git stash pop 'stash@{two hours ago}'
>     Too many revisions specified: stash@{two hours ago}
>
> This happens because word splitting is used to count non-option
> arguments. Make use of rev-parse's --sq option to quote the arguments
> for us to ensure a correct count. Add quotes where necessary.
>
> Also add a test that verifies correct behaviour.
>
> Helped-by: Thomas Rast <[email-masked]>
> Signed-off-by: Øystein Walle <[email-masked]>
> ---
> v3 uses the same eval/--sq technique as v2, suggested by Thomas Rast.
> This is basically a resend except that I added a missing '&&' in the
> test that Eric Sunshine noticed when reading v1.

The change looks good.

An unrelated tangent, but here is a tip-of-the-day for the
approximate parser.  You could have just said

	git stash pop stash@{2.hours}

and it would have been interpreted just the same ;-)

> diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
> index debda7a..7eb011c 100755
> --- a/t/t3903-stash.sh
> +++ b/t/t3903-stash.sh
> @@ -673,4 +673,15 @@ test_expect_success 'store updates stash ref and reflog' '
>  	grep quux bazzy
>  '
>  
> +test_expect_success 'handle stash specification with spaces' '
> +	git stash clear &&
> +	echo pig > file &&

Style: no SP between redirection operator and its target, i.e.

	echo pig >file &&

> +	git stash &&
> +	test_tick &&
> +	echo cow > file &&
> +	git stash &&
> +	git stash apply "stash@{Thu Apr 7 15:17:13 2005 -0700}" &&

This is brittle.  If new tests are added before this, the test_tick
will give you different timestamp and this test will start failing.

Perhaps grab the timestamp out of the stash that was created, e.g.

	...
        test_tick &&
        git stash &&
        stamp=$(git log -g --format="%cd" -1 refs/stash) &&
	test_tick &&
        echo cow >file &&
        git stash &&
        git stash apply "stash@{$stamp}" &&

or something?

> +	grep pig file
> +'
> +
>  test_done