revert: refactor code to find commit subject in find_commit_subject()

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/revert.c b/builtin/revert.c
index c170715ba8fa49be40e4111bb02fa3f46e92fc8a..d47794495abcbb31b39258adee57d4f9c6c3fe75 100644 (file)
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -98,7 +98,7 @@ struct commit_message {
 static int get_message(const char *raw_message, struct commit_message *out)
 {
        const char *encoding;
-       const char *p, *abbrev, *eol;
+       const char *p, *abbrev;
        char *q;
        int abbrev_len, oneline_len;
 
@@ -121,17 +121,7 @@ static int get_message(const char *raw_message, struct commit_message *out)
        abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
        abbrev_len = strlen(abbrev);
 
-       /* Find beginning and end of commit subject. */
-       p = out->message;
-       while (*p && (*p != '\n' || p[1] != '\n'))
-               p++;
-       if (*p) {
-               p += 2;
-               for (eol = p; *eol && *eol != '\n'; eol++)
-                       ; /* do nothing */
-       } else
-               eol = p;
-       oneline_len = eol - p;
+       oneline_len = find_commit_subject(out->message, &p);
 
        out->parent_label = xmalloc(strlen("parent of ") + abbrev_len +
                              strlen("... ") + oneline_len + 1);

diff --git a/commit.c b/commit.c
index 731191e63bd39a89a8ea4ed0390c49d5605cdbed..fa1a5bac30c9560fa304a77513c38b5bea49ea49 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));

diff --git a/commit.h b/commit.h
index 26ec8c0d1cebcf5e79564be690517cd2eb9c6413..236cf1333abc087034028c3e1863cf75cda5026c 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -40,6 +40,9 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
 
 int parse_commit(struct commit *item);
 
+/* Find beginning and length of commit subject. */
+int find_commit_subject(const char *commit_buffer, const char **subject);
+
 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
 unsigned commit_list_count(const struct commit_list *l);
 struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);