From 020c403dff56269d93625970ed41761520afc853 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Sat, 4 Jun 2022 07:42:07 +0000
Subject: [PATCH] When picking a buffer because one isn't specified by the
 user, ignore named buffers. GitHub issue 3212 from David le Blanc.

---
 cmd-choose-tree.c | 2 +-
 paste.c           | 8 ++++++++
 tmux.h            | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/cmd-choose-tree.c b/cmd-choose-tree.c
index 7aa1d217..f2f4b2e3 100644
--- a/cmd-choose-tree.c
+++ b/cmd-choose-tree.c
@@ -100,7 +100,7 @@ cmd_choose_tree_exec(struct cmd *self, struct cmdq_item *item)
 	const struct window_mode	*mode;
 
 	if (cmd_get_entry(self) == &cmd_choose_buffer_entry) {
-		if (paste_get_top(NULL) == NULL)
+		if (paste_is_empty())
 			return (CMD_RETURN_NORMAL);
 		mode = &window_buffer_mode;
 	} else if (cmd_get_entry(self) == &cmd_choose_client_entry) {
diff --git a/paste.c b/paste.c
index 46f218d2..5ff36854 100644
--- a/paste.c
+++ b/paste.c
@@ -112,6 +112,12 @@ paste_walk(struct paste_buffer *pb)
 	return (RB_NEXT(paste_time_tree, &paste_by_time, pb));
 }
 
+int
+paste_is_empty(void)
+{
+	return RB_ROOT(&paste_by_time) == NULL;
+}
+
 /* Get the most recent automatic buffer. */
 struct paste_buffer *
 paste_get_top(const char **name)
@@ -119,6 +125,8 @@ paste_get_top(const char **name)
 	struct paste_buffer	*pb;
 
 	pb = RB_MIN(paste_time_tree, &paste_by_time);
+	while (pb != NULL && !pb->automatic)
+		pb = RB_NEXT(paste_time_tree, &paste_by_time, pb);
 	if (pb == NULL)
 		return (NULL);
 	if (name != NULL)
diff --git a/tmux.h b/tmux.h
index dd177550..33b72d0b 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2057,6 +2057,7 @@ u_int		 paste_buffer_order(struct paste_buffer *);
 time_t		 paste_buffer_created(struct paste_buffer *);
 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
 struct paste_buffer *paste_walk(struct paste_buffer *);
+int		 paste_is_empty(void);
 struct paste_buffer *paste_get_top(const char **);
 struct paste_buffer *paste_get_name(const char *);
 void		 paste_free(struct paste_buffer *);