bloom: parse commit before computing filters

When computing changed-path Bloom filters for a commit, we need to know if the commit has a parent or not. If the commit is not parsed, then its parent pointer will be NULL. As far as I can tell, the only opportunity to reach this code without parsing the commit is inside "test-tool bloom get_filter_for_commit" but it is best to be safe. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Derrick Stolee committed May 11, 2020 at 11:56 UTC 891c17c95497712126700cdf5cd887bdb0ff3d55
1 file changed +3
bloom.c
+3
index 2e3e0f5037..9679278271 100644 --- a/bloom.c +++ b/bloom.c @@ -193,6 +193,9 @@ struct bloom_filter *get_bloom_filter(struct repository *r, diffopt.max_changes = max_changes; diff_setup_done(&diffopt); + /* ensure commit is parsed so we have parent information */ + repo_parse_commit(r, c); + if (c->parents) diff_tree_oid(&c->parents->item->object.oid, &c->object.oid, "", &diffopt); else