text: /* $OpenBSD$ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
   * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
   * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  #include <sys/types.h>
  
  #include <stdlib.h>
  #include <unistd.h>
  
  #include "tmux.h"
  
  /*
   * Respawn a window (restart the command). Kill existing if -k given.
   */
  
  enum cmd_retval	 cmd_respawn_window_exec(struct cmd *, struct cmd_q *);
  
  const struct cmd_entry cmd_respawn_window_entry = {
  	"respawn-window", "respawnw",
  	"kt:", 0, -1,
  	"[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
  	0,
  	cmd_respawn_window_exec
  };
  
  enum cmd_retval
  cmd_respawn_window_exec(struct cmd *self, struct cmd_q *cmdq)
  {
  	struct args		*args = self->args;
  	struct winlink		*wl;
  	struct window		*w;
  	struct window_pane	*wp;
  	struct session		*s;
  	struct environ		 env;
  	const char		*path;
  	char		 	*cause;
  	struct environ_entry	*envent;
  
  	if ((wl = cmd_find_window(cmdq, args_get(args, 't'), &s)) == NULL)
  		return (CMD_RETURN_ERROR);
  	w = wl->window;
  
  	if (!args_has(self->args, 'k')) {
  		TAILQ_FOREACH(wp, &w->panes, entry) {
  			if (wp->fd == -1)
  				continue;
  			cmdq_error(cmdq,
  			    "window still active: %s:%d", s->name, wl->idx);
  			return (CMD_RETURN_ERROR);
  		}
  	}
  
  	environ_init(&env);
  	environ_copy(&global_environ, &env);
  	environ_copy(&s->environ, &env);
  	server_fill_environ(s, &env);
  
  	wp = TAILQ_FIRST(&w->panes);
  	TAILQ_REMOVE(&w->panes, wp, entry);
  	layout_free(w);
  	window_destroy_panes(w);
  	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
  	window_pane_resize(wp, w->sx, w->sy);
  
  	path = NULL;
  	if (cmdq->client != NULL && cmdq->client->session == NULL)
  		envent = environ_find(&cmdq->client->environ, "PATH");
  	else
  		envent = environ_find(&s->environ, "PATH");
  	if (envent != NULL)
  		path = envent->value;
  
  	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, -1, &env,
  	    s->tio, &cause) != 0) {
  		cmdq_error(cmdq, "respawn window failed: %s", cause);
  		free(cause);
  		environ_free(&env);
  		server_destroy_pane(wp);
  		return (CMD_RETURN_ERROR);
  	}
  	layout_init(w, wp);
  	window_pane_reset_mode(wp);
  	screen_reinit(&wp->base);
  	input_init(wp);
  	window_set_active_pane(w, wp);
  
  	recalculate_sizes();
  	server_redraw_window(w);
  
  	environ_free(&env);
  	return (CMD_RETURN_NORMAL);
  }
  