add tests of commit --squash

diff --git a/commit.c b/commit.c
index e9b07509678f5a4f61e5bedadea14b726e290ed1..5ed9ccd723b9992e9d331df8d7ad6122fd661a5f 100644 (file)
--- 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;
@@ -315,6 +328,25 @@ 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));