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commit-reach(repo_in_merge_bases_many): report missing commits

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Some functions in Git's source code follow the convention that returning
a negative value indicates a fatal error, e.g. repository corruption.

Let's use this convention in `repo_in_merge_bases()` to report when one
of the specified commits is missing (i.e. when `repo_parse_commit()`
reports an error).

Also adjust the callers of `repo_in_merge_bases()` to handle such
negative return values.

Note: As of this patch, errors are returned only if any of the specified
merge heads is missing. Over the course of the next patches, missing
commits will also be reported by the `paint_down_to_common()` function,
which is called by `repo_in_merge_bases_many()`, and those errors will
be properly propagated back to the caller at that stage.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin
2024-02-28 09:44:09 +00:00
committed by Junio C Hamano
parent 207c40e1e4
commit 24876ebf68
12 changed files with 173 additions and 36 deletions
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5
http-push.c
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@@ -1575,8 +1575,11 @@ static int verify_merge_base(struct object_id *head_oid, struct ref *remote)
struct commit *head = lookup_commit_or_die(head_oid, "HEAD");
struct commit *branch = lookup_commit_or_die(&remote->old_oid,
remote->name);
int ret = repo_in_merge_bases(the_repository, branch, head);
return repo_in_merge_bases(the_repository, branch, head);
if (ret < 0)
exit(128);
return ret;
}
static int delete_remote_branch(const char *pattern, int force)