1 /* $Id: cmd-respawn-pane.c,v 1.1.1.1 2011/08/17 18:40:04 jmmv Exp $ */
2 
3 /*
4  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
5  * Copyright (c) 2011 Marcel P. Partap <mpartap@gmx.net>
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 #include <sys/types.h>
21 
22 #include <unistd.h>
23 
24 #include "tmux.h"
25 
26 /*
27  * Respawn a pane (restart the command). Kill existing if -k given.
28  */
29 
30 int	cmd_respawn_pane_exec(struct cmd *, struct cmd_ctx *);
31 
32 const struct cmd_entry cmd_respawn_pane_entry = {
33 	"respawn-pane", "respawnp",
34 	"kt:", 0, 1,
35 	"[-k] " CMD_TARGET_PANE_USAGE " [command]",
36 	0,
37 	NULL,
38 	NULL,
39 	cmd_respawn_pane_exec
40 };
41 
42 int
43 cmd_respawn_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
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_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
55 		return (-1);
56 	w = wl->window;
57 
58 	if (!args_has(self->args, 'k') && wp->fd != -1) {
59 		ctx->error(ctx, "pane still active: %s:%u.%u",
60 		    s->name, wl->idx, window_pane_index(w, wp));
61 		return (-1);
62 	}
63 
64 	environ_init(&env);
65 	environ_copy(&global_environ, &env);
66 	environ_copy(&s->environ, &env);
67 	server_fill_environ(s, &env);
68 
69 	window_pane_reset_mode(wp);
70 	screen_reinit(&wp->base);
71 	input_init(wp);
72 
73 	if (args->argc != 0)
74 		cmd = args->argv[0];
75 	else
76 		cmd = NULL;
77 	if (window_pane_spawn(wp, cmd, NULL, NULL, &env, s->tio, &cause) != 0) {
78 		ctx->error(ctx, "respawn pane failed: %s", cause);
79 		xfree(cause);
80 		environ_free(&env);
81 		return (-1);
82 	}
83 	wp->flags |= PANE_REDRAW;
84 	server_status_window(w);
85 
86 	environ_free(&env);
87 	return (0);
88 }
89