Re: [PATCH] t1900: cover linked worktrees and separate git dirs

[Tian Yuchen <cat@malon.dev>]

Hi Jialong,

Thanks for the patch.

On 3/19/26 04:35, Jialong Wang wrote:
> Add repo-info coverage for repositories accessed through a linked\nworktree and through a worktree created with --separate-git-dir.\n\nThese layouts are already supported by the current implementation, but\nare not exercised by t1900-repo-info.sh yet. Cover both the lines and\nnul output formats for layout.bare and layout.shallow in these cases.
> 
> Signed-off-by: Jialong Wang <jerrywang183@yahoo.com>
> ---

I noticed that line breaks in the submitted data are escaped as \n 
characters. Even if you send the patch using a different tool, you 
should still check the mailing list to see how it looks, right? ;)

>   t/t1900-repo-info.sh | 39 +++++++++++++++++++++++++++++++++++++++
>   1 file changed, 39 insertions(+)
> 
> diff --git a/t/t1900-repo-info.sh b/t/t1900-repo-info.sh
> index a9eb07abe8..f85ed232c2 100755
> --- a/t/t1900-repo-info.sh
> +++ b/t/t1900-repo-info.sh
> @@ -69,6 +69,45 @@ test_repo_info 'object.format = sha1 is retrieved correctly' \
>   test_repo_info 'object.format = sha256 is retrieved correctly' \
>   	'git init --object-format=sha256' 'sha256' 'object.format' 'sha256'
>   
> +test_expect_success 'setup linked worktree' '
> +	git init main &&
> +	git -C main worktree add ../linked
> +'
> +
> +test_expect_success 'linked worktree layout values are retrieved correctly in lines format' '
> +	cat >expect <<-\EOF &&
> +	layout.bare=false
> +	layout.shallow=false
> +	EOF
> +	git -C linked repo info layout.bare layout.shallow >actual &&
> +	test_cmp expect actual
> +'
> +
> +test_expect_success 'linked worktree layout values are retrieved correctly in nul format' '
> +	printf "layout.bare\nfalse\0layout.shallow\nfalse\0" >expect &&
> +	git -C linked repo info --format=nul layout.bare layout.shallow >actual &&
> +	test_cmp_bin expect actual
> +'
> +
> +test_expect_success 'setup repository created with --separate-git-dir' '
> +	git init --separate-git-dir=separate.git separate-worktree
> +'
> +
> +test_expect_success 'separate-git-dir layout values are retrieved correctly in lines format' '
> +	cat >expect <<-\EOF &&
> +	layout.bare=false
> +	layout.shallow=false
> +	EOF
> +	git -C separate-worktree repo info layout.bare layout.shallow >actual &&
> +	test_cmp expect actual
> +'
> +
> +test_expect_success 'separate-git-dir layout values are retrieved correctly in nul format' '
> +	printf "layout.bare\nfalse\0layout.shallow\nfalse\0" >expect &&
> +	git -C separate-worktree repo info --format=nul layout.bare layout.shallow >actual &&
> +	test_cmp_bin expect actual
> +'
> +
>   test_expect_success 'values returned in order requested' '
>   	cat >expect <<-\EOF &&
>   	layout.bare=false

The patch itself looks fine. The 'git repo info' command seems to be a 
relatively new one, so I think adding a test script is necessary...

...except one thing to mention:

 > +test_expect_success 'setup linked worktree' '
 > +	git init main &&
 > +	git -C main worktree add ../linked

Since the main repo here is an empty, can a linked worktree be created? 
Here, HEAD does not point to a valid object, and there is no commit 
available checkout. I think it would be better to create a commit using 
test_commit first.

Regards,

Yuchen