1 files changed, 99 insertions, 9 deletions

diff --git a/revision.c b/revision.c
index 86d2470489..0f38364cf3 100644
--- a/revision.c
+++ b/revision.c
@@ -535,6 +535,7 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
 	int left_count = 0, right_count = 0;
 	int left_first;
 	struct patch_ids ids;
+	unsigned cherry_flag;
 
 	/* First count the commits on the left and on the right */
 	for (p = list; p; p = p->next) {
@@ -572,6 +573,9 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
 		commit->util = add_commit_patch_id(commit, &ids);
 	}
 
+	/* either cherry_mark or cherry_pick are true */
+	cherry_flag = revs->cherry_mark ? PATCHSAME : SHOWN;
+
 	/* Check the other side */
 	for (p = list; p; p = p->next) {
 		struct commit *commit = p->item;
@@ -594,7 +598,7 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
 		if (!id)
 			continue;
 		id->seen = 1;
-		commit->object.flags |= SHOWN;
+		commit->object.flags |= cherry_flag;
 	}
 
 	/* Now check the original side for seen ones */
@@ -606,7 +610,7 @@ static void cherry_pick_list(struct commit_list *list, struct rev_info *revs)
 		if (!ent)
 			continue;
 		if (ent->seen)
-			commit->object.flags |= SHOWN;
+			commit->object.flags |= cherry_flag;
 		commit->util = NULL;
 	}
 
@@ -729,6 +733,23 @@ static struct commit_list *collect_bottom_commits(struct commit_list *list)
 	return bottom;
 }
 
+/* Assumes either left_only or right_only is set */
+static void limit_left_right(struct commit_list *list, struct rev_info *revs)
+{
+	struct commit_list *p;
+
+	for (p = list; p; p = p->next) {
+		struct commit *commit = p->item;
+
+		if (revs->right_only) {
+			if (commit->object.flags & SYMMETRIC_LEFT)
+				commit->object.flags |= SHOWN;
+		} else	/* revs->left_only is set */
+			if (!(commit->object.flags & SYMMETRIC_LEFT))
+				commit->object.flags |= SHOWN;
+	}
+}
+
 static int limit_list(struct rev_info *revs)
 {
 	int slop = SLOP;
@@ -781,9 +802,12 @@ static int limit_list(struct rev_info *revs)
 		show(revs, newlist);
 		show_early_output = NULL;
 	}
-	if (revs->cherry_pick)
+	if (revs->cherry_pick || revs->cherry_mark)
 		cherry_pick_list(newlist, revs);
 
+	if (revs->left_only || revs->right_only)
+		limit_left_right(newlist, revs);
+
 	if (bottom) {
 		limit_to_ancestry(bottom, newlist);
 		free_commit_list(bottom);
@@ -917,6 +941,7 @@ void init_revisions(struct rev_info *revs, const char *prefix)
 	revs->min_age = -1;
 	revs->skip_count = -1;
 	revs->max_count = -1;
+	revs->max_parents = -1;
 
 	revs->commit_format = CMIT_FMT_DEFAULT;
 
@@ -1253,16 +1278,47 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
 	} else if (!strcmp(arg, "--remove-empty")) {
 		revs->remove_empty_trees = 1;
 	} else if (!strcmp(arg, "--merges")) {
-		revs->merges_only = 1;
+		revs->min_parents = 2;
 	} else if (!strcmp(arg, "--no-merges")) {
-		revs->no_merges = 1;
+		revs->max_parents = 1;
+	} else if (!prefixcmp(arg, "--min-parents=")) {
+		revs->min_parents = atoi(arg+14);
+	} else if (!prefixcmp(arg, "--no-min-parents")) {
+		revs->min_parents = 0;
+	} else if (!prefixcmp(arg, "--max-parents=")) {
+		revs->max_parents = atoi(arg+14);
+	} else if (!prefixcmp(arg, "--no-max-parents")) {
+		revs->max_parents = -1;
 	} else if (!strcmp(arg, "--boundary")) {
 		revs->boundary = 1;
 	} else if (!strcmp(arg, "--left-right")) {
 		revs->left_right = 1;
+	} else if (!strcmp(arg, "--left-only")) {
+		if (revs->right_only)
+			die("--left-only is incompatible with --right-only"
+			    " or --cherry");
+		revs->left_only = 1;
+	} else if (!strcmp(arg, "--right-only")) {
+		if (revs->left_only)
+			die("--right-only is incompatible with --left-only");
+		revs->right_only = 1;
+	} else if (!strcmp(arg, "--cherry")) {
+		if (revs->left_only)
+			die("--cherry is incompatible with --left-only");
+		revs->cherry_mark = 1;
+		revs->right_only = 1;
+		revs->max_parents = 1;
+		revs->limited = 1;
 	} else if (!strcmp(arg, "--count")) {
 		revs->count = 1;
+	} else if (!strcmp(arg, "--cherry-mark")) {
+		if (revs->cherry_pick)
+			die("--cherry-mark is incompatible with --cherry-pick");
+		revs->cherry_mark = 1;
+		revs->limited = 1; /* needs limit_list() */
 	} else if (!strcmp(arg, "--cherry-pick")) {
+		if (revs->cherry_mark)
+			die("--cherry-pick is incompatible with --cherry-mark");
 		revs->cherry_pick = 1;
 		revs->limited = 1;
 	} else if (!strcmp(arg, "--objects")) {
@@ -1982,10 +2038,15 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
 		return commit_ignore;
 	if (revs->min_age != -1 && (commit->date > revs->min_age))
 		return commit_ignore;
-	if (revs->no_merges && commit->parents && commit->parents->next)
-		return commit_ignore;
-	if (revs->merges_only && !(commit->parents && commit->parents->next))
-		return commit_ignore;
+	if (revs->min_parents || (revs->max_parents >= 0)) {
+		int n = 0;
+		struct commit_list *p;
+		for (p = commit->parents; p; p = p->next)
+			n++;
+		if ((n < revs->min_parents) ||
+		    ((revs->max_parents >= 0) && (n > revs->max_parents)))
+			return commit_ignore;
+	}
 	if (!commit_match(commit, revs))
 		return commit_ignore;
 	if (revs->prune && revs->dense) {
@@ -2232,3 +2293,32 @@ struct commit *get_revision(struct rev_info *revs)
 		graph_update(revs->graph, c);
 	return c;
 }
+
+char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
+{
+	if (commit->object.flags & BOUNDARY)
+		return "-";
+	else if (commit->object.flags & UNINTERESTING)
+		return "^";
+	else if (commit->object.flags & PATCHSAME)
+		return "=";
+	else if (!revs || revs->left_right) {
+		if (commit->object.flags & SYMMETRIC_LEFT)
+			return "<";
+		else
+			return ">";
+	} else if (revs->graph)
+		return "*";
+	else if (revs->cherry_mark)
+		return "+";
+	return "";
+}
+
+void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
+{
+	char *mark = get_revision_mark(revs, commit);
+	if (!strlen(mark))
+		return;
+	fputs(mark, stdout);
+	putchar(' ');
+}