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From: Junio C Hamano <gitster@pobox.com>
To: "Akinori MUSHA" <knu@iDaemons.org>
Cc: git@vger.kernel.org
Subject: Re: [PATCH] sequencer.c: terminate the last line of author-script properly
Date: Thu, 12 Jul 2018 10:22:52 -0700	[thread overview]
Message-ID: <xmqqwou0xtar.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <86a7qwpt9g.knu@iDaemons.org> (Akinori MUSHA's message of "Thu, 12 Jul 2018 20:18:52 +0900")

"Akinori MUSHA" <knu@iDaemons.org> writes:

> It looks like write_author_script() intends to write out a file in
> Bourne shell syntax, but it doesn't put a closing single quote on the
> last line.

s/closing single quote/& and the terminating newline/?

>
> This patch makes .git/rebase-merge/author-script actually parsable by
> sh(1) by adding a single quote and a linefeed to terminate the line
> properly.

Sounds good.

I wonder why this breakage was left unnoticed for a long time,
though.  It's not like writing and reading the author-script from C
code was done first in the "rebase -i" and friends that are users of
the sequencer machinery (I think we had code to do so in "git am"
that was rewritten in C first).  Do we have a similar issue over
there as well?  If not, perhaps if we reused the existing code that
was not broken, we wouldn't have seen this breakage on the sequencer
side?

Thanks.

>
> Signed-off-by: Akinori MUSHA <knu@idaemons.org>
> ---
>  sequencer.c                   |  1 +
>  t/t3404-rebase-interactive.sh | 13 +++++++++++++
>  2 files changed, 14 insertions(+)
>
> diff --git a/sequencer.c b/sequencer.c
> index 4034c0461..5f32b6df1 100644
> --- a/sequencer.c
> +++ b/sequencer.c
> @@ -651,6 +651,7 @@ static int write_author_script(const char *message)
>  			strbuf_addch(&buf, *(message++));
>  		else
>  			strbuf_addf(&buf, "'\\\\%c'", *(message++));
> +	strbuf_addstr(&buf, "'\n");
>  	res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1);
>  	strbuf_release(&buf);
>  	return res;
> diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
> index 352a52e59..345b103eb 100755
> --- a/t/t3404-rebase-interactive.sh
> +++ b/t/t3404-rebase-interactive.sh
> @@ -75,6 +75,19 @@ test_expect_success 'rebase --keep-empty' '
>  	test_line_count = 6 actual
>  '
>  
> +test_expect_success 'rebase -i writes out .git/rebase-merge/author-script in "edit" that sh(1) can parse' '
> +	test_when_finished "git rebase --abort ||:" &&
> +	git checkout master &&
> +	set_fake_editor &&
> +	FAKE_LINES="edit 1" git rebase -i HEAD^ &&
> +	test -f .git/rebase-merge/author-script &&
> +	unset GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE &&
> +	eval "$(cat .git/rebase-merge/author-script)" &&
> +	test "$(git show --quiet --pretty=format:%an)" = "$GIT_AUTHOR_NAME" &&
> +	test "$(git show --quiet --pretty=format:%ae)" = "$GIT_AUTHOR_EMAIL" &&
> +	test "$(git show --quiet --date=raw --pretty=format:@%ad)" = "$GIT_AUTHOR_DATE"
> +'
> +
>  test_expect_success 'rebase -i with the exec command' '
>  	git checkout master &&
>  	(
> -- 
> 2.18.0

  reply	other threads:[~2018-07-12 17:22 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-12 11:18 [PATCH] sequencer.c: terminate the last line of author-script properly Akinori MUSHA
2018-07-12 17:22 ` Junio C Hamano [this message]
2018-07-18  9:45   ` Phillip Wood
2018-07-18 13:46     ` [PATCH] sequencer.c: terminate the last line of author-scriptproperly Phillip Wood
2018-07-18 15:55       ` [RFC PATCH] sequencer: fix quoting in write_author_script Phillip Wood
2018-07-24 15:31         ` Junio C Hamano
2018-07-26 12:33         ` Johannes Schindelin
2018-07-27 10:36           ` Phillip Wood
2018-07-27 12:37             ` Johannes Schindelin
2018-07-30  9:35               ` Phillip Wood
2018-07-18 17:24       ` [PATCH] sequencer.c: terminate the last line of author-scriptproperly Junio C Hamano
2018-07-18 17:17     ` [PATCH] sequencer.c: terminate the last line of author-script properly Junio C Hamano
2018-07-19  9:20       ` Phillip Wood
2018-07-26 12:39         ` Johannes Schindelin
2018-07-26 17:53           ` Junio C Hamano
2018-07-12 20:13 ` Junio C Hamano
2018-07-12 20:16   ` Eric Sunshine
2018-07-12 20:23     ` Junio C Hamano
2018-07-17 23:25     ` Junio C Hamano
2018-07-18  6:23       ` Akinori MUSHA
2018-07-26 12:07       ` Johannes Schindelin
2018-07-26 17:44         ` Junio C Hamano
2018-07-27 15:49           ` Johannes Schindelin
2018-07-12 20:49   ` Junio C Hamano
2018-07-18  9:25 ` Phillip Wood
2018-07-18 13:50 ` Phillip Wood
2018-07-18 13:58   ` [PATCH] sequencer.c: terminate the last line of author-scriptproperly Phillip Wood

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