Re: [PATCH 1/1] stash apply: report status correctly even in a worktree's subdirectory

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

"Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>
writes:

> diff --git a/builtin/stash.c b/builtin/stash.c
> index b5a301f24d..a1e2e7ae7e 100644
> --- a/builtin/stash.c
> +++ b/builtin/stash.c
> @@ -497,6 +497,8 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
>  		 */
>  		cp.git_cmd = 1;
>  		cp.dir = prefix;
> +		argv_array_pushf(&cp.env_array, GIT_WORK_TREE_ENVIRONMENT"=%s",
> +				 absolute_path(get_git_work_tree()));
>  		argv_array_push(&cp.args, "status");
>  		run_command(&cp);
>  	}

Nicely spotted.  Exporting GIT_WORK_TREE alone without GIT_DIR feels
a bit disturbing, at least to me, though.

I wondered if this misbehaves when the end user has GIT_WORK_TREE
environment exported, but in such a case, get_git_work_tree() would
return that directory, and by re-exporting it to the child process,
we would honor the end user's intention, so all is good, I think.

Thanks.

> diff --git a/t/t3908-stash-in-worktree.sh b/t/t3908-stash-in-worktree.sh
> new file mode 100755
> index 0000000000..2b2b366ef9
> --- /dev/null
> +++ b/t/t3908-stash-in-worktree.sh
> @@ -0,0 +1,27 @@
> +#!/bin/sh
> +#
> +# Copyright (c) 2019 Johannes E Schindelin
> +#
> +
> +test_description='Test git stash in a worktree'
> +
> +. ./test-lib.sh
> +
> +test_expect_success 'setup' '
> +	test_commit initial &&
> +	git worktree add wt &&
> +	test_commit -C wt in-worktree
> +'
> +
> +test_expect_success 'apply in subdirectory' '
> +	mkdir wt/subdir &&
> +	(
> +		cd wt/subdir &&
> +		echo modified >../initial.t &&
> +		git stash &&
> +		git stash apply >out
> +	) &&
> +	grep "\.\.\/initial\.t" wt/subdir/out
> +'
> +
> +test_done