Add a common commit parser

[ps-cgit] / parsing.c

diff --git a/parsing.c b/parsing.c
index 98b32434b6157bffce33ae47f664c6a43e8f1a8b..6cab0e94701fe12f8e0fd6e48d05004d761f113f 100644 (file)
--- a/parsing.c
+++ b/parsing.c
@@ -104,3 +104,56 @@ int cgit_parse_query(char *txt, configfn fn)
                (*fn)(txt, value);
        return 0;
 }
+
+char *substr(const char *head, const char *tail)
+{
+       char *buf;
+
+       buf = xmalloc(tail - head + 1);
+       strncpy(buf, head, tail - head);
+       buf[tail - head] = '\0';
+       return buf;
+}
+
+struct commitinfo *cgit_parse_commit(struct commit *commit)
+{
+       struct commitinfo *ret;
+       char *p = commit->buffer, *t = commit->buffer;
+
+       ret = xmalloc(sizeof(*ret));
+       ret->commit = commit;
+
+       if (strncmp(p, "tree ", 5))
+               die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
+       else
+               p += 46; // "tree " + hex[40] + "\n"
+
+       while (!strncmp(p, "parent ", 7))
+               p += 48; // "parent " + hex[40] + "\n"
+
+       if (!strncmp(p, "author ", 7)) {
+               p += 7;
+               t = strchr(p, '<') - 1;
+               ret->author = substr(p, t);
+               p = strchr(p, '\n') + 1;
+       }
+
+       if (!strncmp(p, "committer ", 9)) {
+               p += 9;
+               t = strchr(p, '<') - 1;
+               ret->committer = substr(p, t);
+               p = strchr(p, '\n') + 1;
+       }
+
+       while (*p == '\n')
+               p = strchr(p, '\n') + 1;
+
+       t = strchr(p, '\n');
+       ret->subject = substr(p, t);
+
+       while (*p == '\n')
+               p = strchr(p, '\n') + 1;
+       ret->msg = p;
+
+       return ret;
+}