commit: implement commit_list_contains()
It can be helpful to check if a commit_list contains a commit. Use pointer equality, assuming lookup_commit() was used. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Derrick Stolee committed
Dec 8, 2020 at 17:04 UTC
597b2c39af9ee65496591448715588b711e91947
2 files changed
+13
commit.c
+11
index fe1fa3dc41..9a785bf906 100644
--- a/commit.c
+++ b/commit.c
@@ -544,6 +544,17 @@ struct commit_list *commit_list_insert(struct commit *item, struct commit_list *
return new_list;
}
+int commit_list_contains(struct commit *item, struct commit_list *list)
+{
+ while (list) {
+ if (list->item == item)
+ return 1;
+ list = list->next;
+ }
+
+ return 0;
+}
+
unsigned commit_list_count(const struct commit_list *l)
{
unsigned c = 0;
commit.h
+2
index 5467786c7b..742a6de460 100644
--- a/commit.h
+++ b/commit.h
@@ -167,6 +167,8 @@ int find_commit_subject(const char *commit_buffer, const char **subject);
struct commit_list *commit_list_insert(struct commit *item,
struct commit_list **list);
+int commit_list_contains(struct commit *item,
+ struct commit_list *list);
struct commit_list **commit_list_append(struct commit *commit,
struct commit_list **next);
unsigned commit_list_count(const struct commit_list *l);