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	Add a respawn-pane command, from Marcel Partap.
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								cmd-respawn-pane.c
									
									
									
									
									
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										92
									
								
								cmd-respawn-pane.c
									
									
									
									
									
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/* $Id$ */
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/*
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 * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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 * Copyright (c) 2011 Marcel P. Partap <mpartap@gmx.net>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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 * Respawn a pane (restart the command). Kill existing if -k given.
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 */
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int	cmd_respawn_pane_exec(struct cmd *, struct cmd_ctx *);
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const struct cmd_entry cmd_respawn_pane_entry = {
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	"respawn-pane", "respawnp",
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	"kt:", 0, 1,
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	"[-k] " CMD_TARGET_PANE_USAGE " [command]",
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	0,
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	NULL,
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	NULL,
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	cmd_respawn_pane_exec
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};
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int
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cmd_respawn_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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	struct args		*args = self->args;
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	struct winlink		*wl;
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	struct window		*w;
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	struct window_pane	*wp;
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	u_int			 hlimit;
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	struct session		*s;
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	struct environ		 env;
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	const char		*cmd;
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	char		 	*cause;
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	if ((wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
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		return (-1);
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	w = wl->window;
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	if (!args_has(self->args, 'k') && wp->fd != -1) {
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		ctx->error(ctx, "pane still active: %s:%u.%u",
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		    s->name, wl->idx, window_pane_index(w, wp));
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		return (-1);
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	}
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	environ_init(&env);
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	environ_copy(&global_environ, &env);
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	environ_copy(&s->environ, &env);
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	server_fill_environ(s, &env);
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	window_pane_reset_mode(wp);
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	screen_free(&wp->base);
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	hlimit = options_get_number(&s->options, "history-limit");
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	screen_init(&wp->base, wp->sx, wp->sy, hlimit);
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	wp->screen = &wp->base;
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	input_init(wp);
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	if (args->argc != 0)
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		cmd = args->argv[0];
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	else
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		cmd = NULL;
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	if (window_pane_spawn(wp, cmd, NULL, NULL, &env, s->tio, &cause) != 0) {
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		ctx->error(ctx, "respawn pane failed: %s", cause);
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		xfree(cause);
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		environ_free(&env);
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		return (-1);
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	}
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	wp->flags |= PANE_REDRAW;
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	server_status_window(w);
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	environ_free(&env);
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	return (0);
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}
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