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-rw-r--r--commit.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/commit.c b/commit.c
index dc0c5bfdab..e2bcbe8149 100644
--- a/commit.c
+++ b/commit.c
@@ -50,7 +50,6 @@ struct commit *lookup_commit(const unsigned char *sha1)
static unsigned long parse_commit_date(const char *buf, const char *tail)
{
- unsigned long date;
const char *dateptr;
if (buf + 6 >= tail)
@@ -73,10 +72,7 @@ static unsigned long parse_commit_date(const char *buf, const char *tail)
if (buf >= tail)
return 0;
/* dateptr < buf && buf[-1] == '\n', so strtoul will stop at buf-1 */
- date = strtoul(dateptr, NULL, 10);
- if (date == ULONG_MAX)
- date = 0;
- return date;
+ return strtoul(dateptr, NULL, 10);
}
static struct commit_graft **commit_graft;
@@ -160,7 +156,7 @@ struct commit_graft *read_graft_line(char *buf, int len)
return graft;
}
-int read_graft_file(const char *graft_file)
+static int read_graft_file(const char *graft_file)
{
FILE *fp = fopen(graft_file, "r");
char buf[1024];
@@ -266,7 +262,11 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
bufptr[47] != '\n')
return error("bad parents in commit %s", sha1_to_hex(item->object.sha1));
bufptr += 48;
- if (graft)
+ /*
+ * The clone is shallow if nr_parent < 0, and we must
+ * not traverse its real parents even when we unhide them.
+ */
+ if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
continue;
new_parent = lookup_commit(parent);
if (new_parent)
@@ -705,6 +705,21 @@ struct commit_list *get_merge_bases(struct commit *one, struct commit *two,
return get_merge_bases_many(one, 1, &two, cleanup);
}
+int is_descendant_of(struct commit *commit, struct commit_list *with_commit)
+{
+ if (!with_commit)
+ return 1;
+ while (with_commit) {
+ struct commit *other;
+
+ other = with_commit->item;
+ with_commit = with_commit->next;
+ if (in_merge_bases(other, &commit, 1))
+ return 1;
+ }
+ return 0;
+}
+
int in_merge_bases(struct commit *commit, struct commit **reference, int num)
{
struct commit_list *bases, *b;