Re: [PATCH 5/5] environment.c: fix incorrect git_graft_file initialization

[Junio C Hamano <gitster@pobox.com>]

Nguyễn Thái Ngọc Duy  <pclouds@gmail.com> writes:

> "info/grafts" should be part of the "common repository" when accessed
> from a linked checkout (iow $GIT_COMMON_DIR/info/grafts, not
> $GIT_DIR/info/grafts).
>
> git_path("info/grafts") returns correctly, even without this fix,
> because it detects that $GIT_GRAFT_FILE is not set, so it goes with the
> common rule: anything except sparse-checkout in 'info' belongs to common
> repo. But get_graft_file() would return a wrong value and that one is
> used for setting grafts up.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---

Thanks Eric for sharp eyes and Duy for a quick fix.

Will queue all five.

>  environment.c          |  2 +-
>  t/t0060-path-utils.sh  |  1 +
>  t/t2025-checkout-to.sh | 18 ++++++++++++++++++
>  3 files changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/environment.c b/environment.c
> index 50ed40a..d5b0788 100644
> --- a/environment.c
> +++ b/environment.c
> @@ -157,7 +157,7 @@ static void setup_git_env(void)
>  					   "objects", &git_db_env);
>  	git_index_file = git_path_from_env(INDEX_ENVIRONMENT, git_dir,
>  					   "index", &git_index_env);
> -	git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, git_dir,
> +	git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, git_common_dir,
>  					   "info/grafts", &git_graft_env);
>  	if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
>  		check_replace_refs = 0;
> diff --git a/t/t0060-path-utils.sh b/t/t0060-path-utils.sh
> index da82aab..93605f4 100755
> --- a/t/t0060-path-utils.sh
> +++ b/t/t0060-path-utils.sh
> @@ -269,6 +269,7 @@ test_git_path GIT_COMMON_DIR=bar logs/HEAD                .git/logs/HEAD
>  test_git_path GIT_COMMON_DIR=bar objects                  bar/objects
>  test_git_path GIT_COMMON_DIR=bar objects/bar              bar/objects/bar
>  test_git_path GIT_COMMON_DIR=bar info/exclude             bar/info/exclude
> +test_git_path GIT_COMMON_DIR=bar info/grafts              bar/info/grafts
>  test_git_path GIT_COMMON_DIR=bar info/sparse-checkout     .git/info/sparse-checkout
>  test_git_path GIT_COMMON_DIR=bar remotes/bar              bar/remotes/bar
>  test_git_path GIT_COMMON_DIR=bar branches/bar             bar/branches/bar
> diff --git a/t/t2025-checkout-to.sh b/t/t2025-checkout-to.sh
> index 8a00310..508993f 100755
> --- a/t/t2025-checkout-to.sh
> +++ b/t/t2025-checkout-to.sh
> @@ -81,4 +81,22 @@ test_expect_success 'checkout from a bare repo without --to' '
>  	)
>  '
>  
> +test_expect_success 'checkout with grafts' '
> +	test_when_finished rm .git/info/grafts &&
> +	test_commit abc &&
> +	SHA1=`git rev-parse HEAD` &&
> +	test_commit def &&
> +	test_commit xyz &&
> +	echo "`git rev-parse HEAD` $SHA1" >.git/info/grafts &&
> +	cat >expected <<-\EOF &&
> +	xyz
> +	abc
> +	EOF
> +	git log --format=%s -2 >actual &&
> +	test_cmp expected actual &&
> +	git checkout --detach --to grafted master &&
> +	git --git-dir=grafted/.git log --format=%s -2 >actual &&
> +	test_cmp expected actual
> +'
> +
>  test_done