cmd-respawn-window.c revision 1.40 
1/* $OpenBSD: cmd-respawn-window.c,v 1.40 2019/09/19 09:02:30 nicm Exp $ */
2
3/*
4 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
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 <string.h>
23
24#include "tmux.h"
25
26/*
27 * Respawn a window (restart the command). Kill existing if -k given.
28 */
29
30static enum cmd_retval	cmd_respawn_window_exec(struct cmd *,
31			    struct cmdq_item *);
32
33const struct cmd_entry cmd_respawn_window_entry = {
34	.name = "respawn-window",
35	.alias = "respawnw",
36
37	.args = { "c:e:kt:", 0, -1 },
38	.usage = "[-k] [-c start-directory] [-e environment] "
39		 CMD_TARGET_WINDOW_USAGE " [command]",
40
41	.target = { 't', CMD_FIND_WINDOW, 0 },
42
43	.flags = 0,
44	.exec = cmd_respawn_window_exec
45};
46
47static enum cmd_retval
48cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
49{
50	struct args		*args = self->args;
51	struct spawn_context	 sc;
52	struct session		*s = item->target.s;
53	struct winlink		*wl = item->target.wl;
54	char			*cause = NULL;
55	const char		*add;
56	struct args_value	*value;
57
58	memset(&sc, 0, sizeof sc);
59	sc.item = item;
60	sc.s = s;
61	sc.wl = wl;
62	sc.c = cmd_find_client(item, NULL, 1);
63
64	sc.name = NULL;
65	sc.argc = args->argc;
66	sc.argv = args->argv;
67	sc.environ = environ_create();
68
69	add = args_first_value(args, 'e', &value);
70	while (add != NULL) {
71		environ_put(sc.environ, add);
72		add = args_next_value(&value);
73	}
74
75	sc.idx = -1;
76	sc.cwd = args_get(args, 'c');
77
78	sc.flags = SPAWN_RESPAWN;
79	if (args_has(args, 'k'))
80		sc.flags |= SPAWN_KILL;
81
82	if (spawn_window(&sc, &cause) == NULL) {
83		cmdq_error(item, "respawn window failed: %s", cause);
84		free(cause);
85		return (CMD_RETURN_ERROR);
86	}
87
88	server_redraw_window(wl->window);
89
90	environ_free(sc.environ);
91	return (CMD_RETURN_NORMAL);
92}
93