git log/diff: add -G<regexp> that greps in the patch text

diff --git a/commit.c b/commit.c
index e9b07509678f5a4f61e5bedadea14b726e290ed1..0094ec1c9278332f736d2814c847b272788a7dd3 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -315,6 +315,25 @@ 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));