cmd-respawn-window.c revision 1.18 
1/* $OpenBSD: cmd-respawn-window.c,v 1.18 2013/03/24 09:57:59 nicm Exp $ */
2
3/*
4 * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20
21#include <stdlib.h>
22#include <unistd.h>
23
24#include "tmux.h"
25
26/*
27 * Respawn a window (restart the command). Kill existing if -k given.
28 */
29
30enum cmd_retval	 cmd_respawn_window_exec(struct cmd *, struct cmd_q *);
31
32const struct cmd_entry cmd_respawn_window_entry = {
33	"respawn-window", "respawnw",
34	"kt:", 0, 1,
35	"[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
36	0,
37	NULL,
38	NULL,
39	cmd_respawn_window_exec
40};
41
42enum cmd_retval
43cmd_respawn_window_exec(struct cmd *self, struct cmd_q *cmdq)
44{
45	struct args		*args = self->args;
46	struct winlink		*wl;
47	struct window		*w;
48	struct window_pane	*wp;
49	struct session		*s;
50	struct environ		 env;
51	const char		*cmd;
52	char		 	*cause;
53
54	if ((wl = cmd_find_window(cmdq, args_get(args, 't'), &s)) == NULL)
55		return (CMD_RETURN_ERROR);
56	w = wl->window;
57
58	if (!args_has(self->args, 'k')) {
59		TAILQ_FOREACH(wp, &w->panes, entry) {
60			if (wp->fd == -1)
61				continue;
62			cmdq_error(cmdq,
63			    "window still active: %s:%d", s->name, wl->idx);
64			return (CMD_RETURN_ERROR);
65		}
66	}
67
68	environ_init(&env);
69	environ_copy(&global_environ, &env);
70	environ_copy(&s->environ, &env);
71	server_fill_environ(s, &env);
72
73	wp = TAILQ_FIRST(&w->panes);
74	TAILQ_REMOVE(&w->panes, wp, entry);
75	layout_free(w);
76	window_destroy_panes(w);
77	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
78	window_pane_resize(wp, w->sx, w->sy);
79	if (args->argc != 0)
80		cmd = args->argv[0];
81	else
82		cmd = NULL;
83	if (window_pane_spawn(wp, cmd, NULL, NULL, &env, s->tio, &cause) != 0) {
84		cmdq_error(cmdq, "respawn window failed: %s", cause);
85		free(cause);
86		environ_free(&env);
87		server_destroy_pane(wp);
88		return (CMD_RETURN_ERROR);
89	}
90	layout_init(w, wp);
91	window_pane_reset_mode(wp);
92	screen_reinit(&wp->base);
93	input_init(wp);
94	window_set_active_pane(w, wp);
95
96	recalculate_sizes();
97	server_redraw_window(w);
98
99	environ_free(&env);
100	return (CMD_RETURN_NORMAL);
101}
102