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authorJohannes Schindelin <Johannes.Schindelin@gmx.de>2007-01-20 23:04:02 +0100
committerJunio C Hamano <junkio@cox.net>2007-01-20 23:46:53 -0800
commit9c5e66e97da8cadcc45a278c4e39a7d25674d4ff (patch)
tree1f14d50a5398779c8738645fadd4b325086bfc0b /revision.c
parenteaf6459e4d482af51429f9464125621b805eb5fd (diff)
downloadgit-9c5e66e97da8cadcc45a278c4e39a7d25674d4ff.tar.gz
Teach revision machinery about --reverse
The option --reverse reverses the order of the commits. [jc: with comments on rev_info.reverse from Simon 'corecode' Schubert.] Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'revision.c')
-rw-r--r--revision.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/revision.c b/revision.c
index ebd025064c..6726f736ed 100644
--- a/revision.c
+++ b/revision.c
@@ -1057,6 +1057,10 @@ 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) {
@@ -1285,6 +1289,40 @@ 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)