xref: /openbsd-src/usr.bin/tmux/cmd-respawn-window.c (revision 99fd087599a8791921855f21bd7e36130f39aadc)
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 
30 static enum cmd_retval	cmd_respawn_window_exec(struct cmd *,
31 			    struct cmdq_item *);
32 
33 const 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 
47 static enum cmd_retval
48 cmd_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