Subject: Re: [PATCH 5/5] config: add --type=bool-or-auto switch

From: Junio C Hamano <[email-masked]>
Date: Thu, 08 Apr 2021 11:36:11 -0700

Ævar Arnfjörð Bjarmason  <[email-masked]> writes:

> Now that we're using git_config_tristate() internally let's expose it
> via "git config" like we do "bool", "int" etc for completeness, and so
> that we can easily test it.
>
> Unlike the --type=bool-or-str option added in dbd8c09bfe (mergetool:
> allow auto-merge for meld to follow the vim-diff behavior, 2020-05-07)
> we don't have or anticipate any in-tree user of this except the tests.
>
> Signed-off-by: Ævar Arnfjörð Bjarmason <[email-masked]>

OK.

> @@ -263,6 +267,12 @@ static int format_config(struct strbuf *buf, const char *key_, const char *value
>  				strbuf_addstr(buf, value_);
>  			else
>  				strbuf_addstr(buf, v ? "true" : "false");
> +		} else if (type == TYPE_BOOL_OR_AUTO) {
> +			int v = git_config_tristate(key_, value_);
> +			if (v == 2)
> +				strbuf_addstr(buf, "auto");
> +			else
> +				strbuf_addstr(buf, v ? "true" : "false");

Makes sense.

> +test_expect_success 'there is no --bool-or-auto, --<type> is deprecated in favor of --type=<type>' '
> +	test_expect_code 129 git config --bool-or-auto
> +'
> +
> +test_expect_success 'get --type=bool-or-auto' '
> +	cat >.git/config <<-\EOF &&
> +	[bool]
> +	true1
> +	true2 = true
> +	false = false
> +	[int]
> +	int1 = 0
> +	int2 = 1
> +	int3 = -1
> +	[string]
> +	string1 = hello
> +	string2 = there you
> +	[auto]
> +	auto1 = auto
> +	auto2 = AUTO
> +	[bad-auto]
> +	bad-auto1 = AUTOMATIC
> +	EOF
> +	cat >expect <<-\EOF &&
> +	true
> +	true
> +	false
> +	false
> +	true
> +	true
> +	auto
> +	auto
> +	EOF

Almost the same comment applies to the expected output as the
earlier patch.

Other than that, (and adjusting for 2 that should be turned into
symbolic constant in an earlier step in a reroll), this step looks
quite sensible.

Thanks.

> +	{
> +		git config --type=bool-or-auto bool.true1 &&
> +		git config --type=bool-or-auto bool.true2 &&
> +		git config --type=bool-or-auto bool.false &&
> +		git config --type=bool-or-auto int.int1 &&
> +		git config --type=bool-or-auto int.int2 &&
> +		git config --type=bool-or-auto int.int3 &&
> +		git config --type=bool-or-auto auto.auto1 &&
> +		git config --type=bool-or-auto auto.auto2
> +	} >actual &&
> +	test_cmp expect actual &&
> +
> +	test_must_fail git config --type=bool-or-auto --get bad-auto.bad-auto1 2>err &&
> +	grep "bad tristate config value" err
> +'
> +
>  cat >expect <<\EOF
>  [bool]
>  	true1 = true