submodule: Fix documentation of update subcommand

[git.git] / commit.c

diff --git a/commit.c b/commit.c
index 19cf8f9c67bd0f4d71172f33424f7d2371a3af68..a8c7577d28a4b2a0b5fc13420f8a141871626087 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -867,7 +867,7 @@ struct commit_list *get_octopus_merge_bases(struct commit_list *in)
 
                for (j = ret; j; j = j->next) {
                        struct commit_list *bases;
-                       bases = get_merge_bases(i->item, j->item, 1);
+                       bases = get_merge_bases(i->item, j->item);
                        if (!new)
                                new = bases;
                        else
@@ -936,10 +936,10 @@ static int remove_redundant(struct commit **array, int cnt)
        return filled;
 }
 
-struct commit_list *get_merge_bases_many(struct commit *one,
-                                        int n,
-                                        struct commit **twos,
-                                        int cleanup)
+static struct commit_list *get_merge_bases_many_0(struct commit *one,
+                                                 int n,
+                                                 struct commit **twos,
+                                                 int cleanup)
 {
        struct commit_list *list;
        struct commit **rslt;
@@ -977,10 +977,23 @@ struct commit_list *get_merge_bases_many(struct commit *one,
        return result;
 }
 
-struct commit_list *get_merge_bases(struct commit *one, struct commit *two,
-                                   int cleanup)
+struct commit_list *get_merge_bases_many(struct commit *one,
+                                        int n,
+                                        struct commit **twos)
 {
-       return get_merge_bases_many(one, 1, &two, cleanup);
+       return get_merge_bases_many_0(one, n, twos, 1);
+}
+
+struct commit_list *get_merge_bases_many_dirty(struct commit *one,
+                                              int n,
+                                              struct commit **twos)
+{
+       return get_merge_bases_many_0(one, n, twos, 0);
+}
+
+struct commit_list *get_merge_bases(struct commit *one, struct commit *two)
+{
+       return get_merge_bases_many_0(one, 1, &two, 1);
 }
 
 /*
@@ -1640,3 +1653,49 @@ const char *find_commit_header(const char *msg, const char *key, size_t *out_len
        }
        return NULL;
 }
+
+/*
+ * Inspect sb and determine the true "end" of the log message, in
+ * order to find where to put a new Signed-off-by: line.  Ignored are
+ * trailing comment lines and blank lines, and also the traditional
+ * "Conflicts:" block that is not commented out, so that we can use
+ * "git commit -s --amend" on an existing commit that forgot to remove
+ * it.
+ *
+ * Returns the number of bytes from the tail to ignore, to be fed as
+ * the second parameter to append_signoff().
+ */
+int ignore_non_trailer(struct strbuf *sb)
+{
+       int boc = 0;
+       int bol = 0;
+       int in_old_conflicts_block = 0;
+
+       while (bol < sb->len) {
+               char *next_line;
+
+               if (!(next_line = memchr(sb->buf + bol, '\n', sb->len - bol)))
+                       next_line = sb->buf + sb->len;
+               else
+                       next_line++;
+
+               if (sb->buf[bol] == comment_line_char || sb->buf[bol] == '\n') {
+                       /* is this the first of the run of comments? */
+                       if (!boc)
+                               boc = bol;
+                       /* otherwise, it is just continuing */
+               } else if (starts_with(sb->buf + bol, "Conflicts:\n")) {
+                       in_old_conflicts_block = 1;
+                       if (!boc)
+                               boc = bol;
+               } else if (in_old_conflicts_block && sb->buf[bol] == '\t') {
+                       ; /* a pathname in the conflicts block */
+               } else if (boc) {
+                       /* the previous was not trailing comment */
+                       boc = 0;
+                       in_old_conflicts_block = 0;
+               }
+               bol = next_line - sb->buf;
+       }
+       return boc ? sb->len - boc : 0;
+}