Add a -f filter argument to the list commands like choose-tree.

1 files changed, 17 insertions, 7 deletions

diff --git a/cmd-list-sessions.c b/cmd-list-sessions.c
index 72ff47e8..36d6dd78 100644
--- a/cmd-list-sessions.c
+++ b/cmd-list-sessions.c
@@ -42,8 +42,8 @@ const struct cmd_entry cmd_list_sessions_entry = {
 	.name = "list-sessions",
 	.alias = "ls",
 
-	.args = { "F:", 0, 0 },
-	.usage = "[-F format]",
+	.args = { "F:f:", 0, 0 },
+	.usage = "[-F format] [-f filter]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_list_sessions_exec
@@ -56,11 +56,13 @@ cmd_list_sessions_exec(struct cmd *self, struct cmdq_item *item)
 	struct session		*s;
 	u_int		 	 n;
 	struct format_tree	*ft;
-	const char		*template;
-	char			*line;
+	const char		*template, *filter;
+	char			*line, *expanded;
+	int			 flag;
 
 	if ((template = args_get(args, 'F')) == NULL)
 		template = LIST_SESSIONS_TEMPLATE;
+	filter = args_get(args, 'f');
 
 	n = 0;
 	RB_FOREACH(s, sessions, &sessions) {
@@ -68,9 +70,17 @@ cmd_list_sessions_exec(struct cmd *self, struct cmdq_item *item)
 		format_add(ft, "line", "%u", n);
 		format_defaults(ft, NULL, s, NULL, NULL);
 
-		line = format_expand(ft, template);
-		cmdq_print(item, "%s", line);
-		free(line);
+		if (filter != NULL) {
+			expanded = format_expand(ft, filter);
+			flag = format_true(expanded);
+			free(expanded);
+		} else
+			flag = 1;
+		if (flag) {
+			line = format_expand(ft, template);
+			cmdq_print(item, "%s", line);
+			free(line);
+		}
 
 		format_free(ft);
 		n++;