From: Philippe Blain Date: Sun, 25 Feb 2024 21:56:16 GMT Subject: [PATCH v5 1/2] revision: ensure MERGE_HEAD is a ref in prepare_show_merge Message-ID: <20240225-ml-log-merge-with-cherry-pick-and-other-pseudo-heads-v5-1-af1ef2d9e44d@gmail.com> In-Reply-To: <20240225-ml-log-merge-with-cherry-pick-and-other-pseudo-heads-v5-0-af1ef2d9e44d@gmail.com> From: Michael Lohmann This is done to (1) ensure MERGE_HEAD is a ref, (2) obtain the oid without any prefixing by refs.c:repo_dwim_ref() (3) error out when MERGE_HEAD is a symref. Helped-by: Junio C Hamano Signed-off-by: Michael Lohmann Signed-off-by: Junio C Hamano Signed-off-by: Philippe Blain --- revision.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/revision.c b/revision.c index 2424c9bd67..ee26988cc6 100644 --- a/revision.c +++ b/revision.c @@ -1973,8 +1973,12 @@ static void prepare_show_merge(struct rev_info *revs) if (repo_get_oid(the_repository, "HEAD", &oid)) die("--merge without HEAD?"); head = lookup_commit_or_die(&oid, "HEAD"); - if (repo_get_oid(the_repository, "MERGE_HEAD", &oid)) + if (read_ref_full("MERGE_HEAD", + RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE, + &oid, NULL)) die("--merge without MERGE_HEAD?"); + if (is_null_oid(&oid)) + die(_("MERGE_HEAD is a symbolic ref?")); other = lookup_commit_or_die(&oid, "MERGE_HEAD"); add_pending_object(revs, &head->object, "HEAD"); add_pending_object(revs, &other->object, "MERGE_HEAD"); -- 2.39.1