cmd-respawn-window.c revision 1.5 
1/* $OpenBSD: cmd-respawn-window.c,v 1.5 2009/07/26 12:58:44 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 <unistd.h>
22
23#include "tmux.h"
24
25/*
26 * Respawn a window (restart the command). Kill existing if -k given.
27 */
28
29int	cmd_respawn_window_exec(struct cmd *, struct cmd_ctx *);
30
31const struct cmd_entry cmd_respawn_window_entry = {
32	"respawn-window", "respawnw",
33	"[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
34	CMD_ARG01, CMD_CHFLAG('k'),
35	cmd_target_init,
36	cmd_target_parse,
37	cmd_respawn_window_exec,
38	cmd_target_free,
39	cmd_target_print
40};
41
42int
43cmd_respawn_window_exec(struct cmd *self, struct cmd_ctx *ctx)
44{
45	struct cmd_target_data	*data = self->data;
46	struct winlink		*wl;
47	struct window		*w;
48	struct window_pane	*wp;
49	struct session		*s;
50	const char	       **env;
51	char		 	*cause;
52
53	if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
54		return (-1);
55	w = wl->window;
56
57	if (!(data->chflags & CMD_CHFLAG('k'))) {
58		TAILQ_FOREACH(wp, &w->panes, entry) {
59			if (wp->fd == -1)
60				continue;
61			ctx->error(ctx,
62			    "window still active: %s:%d", s->name, wl->idx);
63			return (-1);
64		}
65	}
66
67	env = server_fill_environ(s);
68
69	wp = TAILQ_FIRST(&w->panes);
70	TAILQ_REMOVE(&w->panes, wp, entry);
71	layout_free(w);
72 	window_destroy_panes(w);
73	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
74	window_pane_resize(wp, w->sx, w->sy);
75	if (window_pane_spawn(wp, data->arg, NULL, env, &cause) != 0) {
76		ctx->error(ctx, "respawn window failed: %s", cause);
77		xfree(cause);
78		return (-1);
79	}
80	layout_init(w);
81	screen_reinit(&wp->base);
82	window_set_active_pane(w, wp);
83
84	recalculate_sizes();
85	server_redraw_window(w);
86
87	return (0);
88}
89