Update draft release notes for 1.5.1

[git.git] / revision.c

diff --git a/revision.c b/revision.c
index 15bdaf6095ccbe690c664f80a5b25e354d068d61..5b1794b0efbd628f935db006835168ea3e640de4 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1058,6 +1058,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                                        git_log_output_encoding = "";
                                continue;
                        }
+                       if (!strcmp(arg, "--reverse")) {
+                               revs->reverse ^= 1;
+                               continue;
+                       }
 
                        opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i);
                        if (opts > 0) {
@@ -1286,6 +1290,40 @@ struct commit *get_revision(struct rev_info *revs)
 {
        struct commit *c = NULL;
 
+       if (revs->reverse) {
+               struct commit_list *list;
+
+               /*
+                * rev_info.reverse is used to note the fact that we
+                * want to output the list of revisions in reverse
+                * order.  To accomplish this goal, reverse can have
+                * different values:
+                *
+                *  0  do nothing
+                *  1  reverse the list
+                *  2  internal use:  we have already obtained and
+                *     reversed the list, now we only need to yield
+                *     its items.
+                */
+
+               if (revs->reverse == 1) {
+                       revs->reverse = 0;
+                       list = NULL;
+                       while ((c = get_revision(revs)))
+                               commit_list_insert(c, &list);
+                       revs->commits = list;
+                       revs->reverse = 2;
+               }
+
+               if (!revs->commits)
+                       return NULL;
+               c = revs->commits->item;
+               list = revs->commits->next;
+               free(revs->commits);
+               revs->commits = list;
+               return c;
+       }
+
        if (0 < revs->skip_count) {
                while ((c = get_revision_1(revs)) != NULL) {
                        if (revs->skip_count-- <= 0)