Subject: Re: [PATCH 1/1] pull --rebase=<type>: allow single-letter abbreviations for the type

From: Ævar Arnfjörð Bjarmason <[email-masked]>
Date: Tue, 07 Aug 2018 21:28:42 +0200

On Sat, Aug 04 2018, Johannes Schindelin via GitGitGadget wrote:

> From: Johannes Schindelin <[email-masked]>
>
> Git for Windows' original 4aa8b8c8283 (Teach 'git pull' to handle
> --rebase=interactive, 2011-10-21) had support for the very convenient
> abbreviation
>
> 	git pull --rebase=i
>
> which was later lost when it was ported to the builtin `git pull`, and
> it was not introduced before the patch eventually made it into Git as
> f5eb87b98dd (pull: allow interactive rebase with --rebase=interactive,
> 2016-01-13).
>
> However, it is *really* a useful short hand for the occasional rebasing
> pull on branches that do not usually want to be rebased.
>
> So let's reintroduce this convenience, at long last.

I agree with the shorthand, but I really think this should be
documented. The amount of people who'll discover this by reading the
code is much smaller than those who might discover it via the docs.

> Signed-off-by: Johannes Schindelin <[email-masked]>
> ---
>  builtin/pull.c  |  6 +++---
>  t/t5520-pull.sh | 12 ++++++++++++
>  2 files changed, 15 insertions(+), 3 deletions(-)
>
> diff --git a/builtin/pull.c b/builtin/pull.c
> index 4e7893539..53bc5facf 100644
> --- a/builtin/pull.c
> +++ b/builtin/pull.c
> @@ -48,11 +48,11 @@ static enum rebase_type parse_config_rebase(const char *key, const char *value,
>  		return REBASE_FALSE;
>  	else if (v > 0)
>  		return REBASE_TRUE;
> -	else if (!strcmp(value, "preserve"))
> +	else if (!strcmp(value, "preserve") || !strcmp(value, "p"))
>  		return REBASE_PRESERVE;
> -	else if (!strcmp(value, "merges"))
> +	else if (!strcmp(value, "merges") || !strcmp(value, "m"))
>  		return REBASE_MERGES;
> -	else if (!strcmp(value, "interactive"))
> +	else if (!strcmp(value, "interactive") || !strcmp(value, "i"))
>  		return REBASE_INTERACTIVE;

Here 3 special cases are added...

>  	if (fatal)
> diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
> index 68aa5f034..5e501c8b0 100755
> --- a/t/t5520-pull.sh
> +++ b/t/t5520-pull.sh
> @@ -475,10 +475,22 @@ test_expect_success 'pull.rebase=interactive' '
>  	false
>  	EOF
>  	test_set_editor "$TRASH_DIRECTORY/fake-editor" &&
> +	test_when_finished "test_might_fail git rebase --abort" &&
>  	test_must_fail git pull --rebase=interactive . copy &&
>  	test "I was here" = "$(cat fake.out)"
>  '
>
> +test_expect_success 'pull --rebase=i' '
> +	write_script "$TRASH_DIRECTORY/fake-editor" <<-\EOF &&
> +	echo I was here, too >fake.out &&
> +	false
> +	EOF
> +	test_set_editor "$TRASH_DIRECTORY/fake-editor" &&
> +	test_when_finished "test_might_fail git rebase --abort" &&
> +	test_must_fail git pull --rebase=i . copy &&
> +	test "I was here, too" = "$(cat fake.out)"
> +'
> +
>  test_expect_success 'pull.rebase=invalid fails' '
>  	git reset --hard before-preserve-rebase &&
>  	test_config pull.rebase invalid &&

...but this test is only for 1/3. I haven't run this, but it looks like
the tests will still pass if we remove --rebase=p and --rebase=m.