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-rw-r--r--commit.c45
1 files changed, 39 insertions, 6 deletions
diff --git a/commit.c b/commit.c
index e9b0750967..b21335ee4c 100644
--- a/commit.c
+++ b/commit.c
@@ -49,6 +49,19 @@ struct commit *lookup_commit(const unsigned char *sha1)
return check_commit(obj, sha1, 0);
}
+struct commit *lookup_commit_reference_by_name(const char *name)
+{
+ unsigned char sha1[20];
+ struct commit *commit;
+
+ if (get_sha1(name, sha1))
+ return NULL;
+ commit = lookup_commit_reference(sha1);
+ if (!commit || parse_commit(commit))
+ return NULL;
+ return commit;
+}
+
static unsigned long parse_commit_date(const char *buf, const char *tail)
{
const char *dateptr;
@@ -137,12 +150,8 @@ struct commit_graft *read_graft_line(char *buf, int len)
buf[--len] = '\0';
if (buf[0] == '#' || buf[0] == '\0')
return NULL;
- if ((len + 1) % 41) {
- bad_graft_data:
- error("bad graft data: %s", buf);
- free(graft);
- return NULL;
- }
+ if ((len + 1) % 41)
+ goto bad_graft_data;
i = (len + 1) / 41 - 1;
graft = xmalloc(sizeof(*graft) + 20 * i);
graft->nr_parent = i;
@@ -155,6 +164,11 @@ struct commit_graft *read_graft_line(char *buf, int len)
goto bad_graft_data;
}
return graft;
+
+bad_graft_data:
+ error("bad graft data: %s", buf);
+ free(graft);
+ return NULL;
}
static int read_graft_file(const char *graft_file)
@@ -315,6 +329,25 @@ int parse_commit(struct commit *item)
return ret;
}
+int find_commit_subject(const char *commit_buffer, const char **subject)
+{
+ const char *eol;
+ const char *p = commit_buffer;
+
+ while (*p && (*p != '\n' || p[1] != '\n'))
+ p++;
+ if (*p) {
+ p += 2;
+ for (eol = p; *eol && *eol != '\n'; eol++)
+ ; /* do nothing */
+ } else
+ eol = p;
+
+ *subject = p;
+
+ return eol - p;
+}
+
struct commit_list *commit_list_insert(struct commit *item, struct commit_list **list_p)
{
struct commit_list *new_list = xmalloc(sizeof(struct commit_list));