builtin/show-ref: treat directory as non-existing in --exists

9080a7f178 (builtin/show-ref: add new mode to check for reference
existence, 2023-10-31) added the option --exists to git-show-ref(1).

When you use this option against a ref that doesn't exist, but it is
a parent directory of an existing ref, you get the following error:

    $ git show-ref --exists refs/heads
    error: failed to look up reference: Is a directory

when the ref-files backend is in use.  To be more clear to user,
hide the error about having found a directory.  What matters to the
user is that the named ref does not exist.  Instead, print the same
error as when the ref was not found:

    error: reference does not exist

Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Toon Claes 2024-01-10 15:15:59 +01:00 committed by Junio C Hamano
parent 564d0252ca
commit 0aabeaa562
2 changed files with 3 additions and 3 deletions

View File

@ -239,7 +239,7 @@ static int cmd_show_ref__exists(const char **refs)
if (refs_read_raw_ref(get_main_ref_store(the_repository), ref,
&unused_oid, &unused_referent, &unused_type,
&failure_errno)) {
if (failure_errno == ENOENT) {
if (failure_errno == ENOENT || failure_errno == EISDIR) {
error(_("reference does not exist"));
ret = 2;
} else {

View File

@ -260,9 +260,9 @@ test_expect_success '--exists with non-commit object' '
test_expect_success '--exists with directory fails with generic error' '
cat >expect <<-EOF &&
error: failed to look up reference: Is a directory
error: reference does not exist
EOF
test_expect_code 1 git show-ref --exists refs/heads 2>err &&
test_expect_code 2 git show-ref --exists refs/heads 2>err &&
test_cmp expect err
'