ls-files: fix path used when recursing into submodules

Don't assume that the current working directory is the root of the
repository. Correctly generate the path for the recursing child
processes by building it from the work_tree() root instead. Otherwise if
we run ls-files using --git-dir or --work-tree it will not work
correctly as it attempts to change directory into a potentially invalid
location. Best case, it doesn't exist and we produce an error. Worst
case we cd into the wrong location and unknown behavior occurs.

Add a new test which highlights this possibility.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jacob Keller 2017-04-13 10:12:24 -07:00 committed by Junio C Hamano
parent 2e5d6503bd
commit 2cfe66a8ee
2 changed files with 15 additions and 1 deletions

View File

@ -203,6 +203,7 @@ static void show_gitlink(const struct cache_entry *ce)
{
struct child_process cp = CHILD_PROCESS_INIT;
int status;
char *dir;
prepare_submodule_repo_env(&cp.env_array);
argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT);
@ -221,8 +222,10 @@ static void show_gitlink(const struct cache_entry *ce)
argv_array_pushv(&cp.args, submodule_options.argv);
cp.git_cmd = 1;
cp.dir = ce->name;
dir = mkpathdup("%s/%s", get_git_work_tree(), ce->name);
cp.dir = dir;
status = run_command(&cp);
free(dir);
if (status)
exit(status);
}

View File

@ -82,6 +82,17 @@ test_expect_success 'ls-files recurses more than 1 level' '
test_cmp expect actual
'
test_expect_success 'ls-files works with GIT_DIR' '
cat >expect <<-\EOF &&
.gitmodules
c
subsub/d
EOF
git --git-dir=submodule/.git ls-files --recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success '--recurse-submodules and pathspecs setup' '
echo e >submodule/subsub/e.txt &&
git -C submodule/subsub add e.txt &&