/* $OpenBSD$ */

/*
* Copyright (c) 2008 Nicholas Marriott <[email protected]>
* Copyright (c) 2011 Marcel P. Partap <[email protected]>
*
* 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 <string.h>

#include "tmux.h"

/*
* Respawn a pane (restart the command). Kill existing if -k given.
*/

static enum cmd_retval  cmd_respawn_pane_exec(struct cmd *, struct cmdq_item *);

const struct cmd_entry cmd_respawn_pane_entry = {
       .name = "respawn-pane",
       .alias = "respawnp",

       .args = { "c:e:kt:", 0, -1, NULL },
       .usage = "[-k] [-c start-directory] [-e environment] "
                CMD_TARGET_PANE_USAGE " [shell-command]",

       .target = { 't', CMD_FIND_PANE, 0 },

       .flags = 0,
       .exec = cmd_respawn_pane_exec
};

static enum cmd_retval
cmd_respawn_pane_exec(struct cmd *self, struct cmdq_item *item)
{
       struct args             *args = cmd_get_args(self);
       struct cmd_find_state   *target = cmdq_get_target(item);
       struct spawn_context     sc = { 0 };
       struct session          *s = target->s;
       struct winlink          *wl = target->wl;
       struct window_pane      *wp = target->wp;
       char                    *cause = NULL;
       struct args_value       *av;

       sc.item = item;
       sc.s = s;
       sc.wl = wl;

       sc.wp0 = wp;

       args_to_vector(args, &sc.argc, &sc.argv);
       sc.environ = environ_create();

       av = args_first_value(args, 'e');
       while (av != NULL) {
               environ_put(sc.environ, av->string, 0);
               av = args_next_value(av);
       }

       sc.idx = -1;
       sc.cwd = args_get(args, 'c');

       sc.flags = SPAWN_RESPAWN;
       if (args_has(args, 'k'))
               sc.flags |= SPAWN_KILL;

       if (spawn_pane(&sc, &cause) == NULL) {
               cmdq_error(item, "respawn pane failed: %s", cause);
               free(cause);
               if (sc.argv != NULL)
                       cmd_free_argv(sc.argc, sc.argv);
               environ_free(sc.environ);
               return (CMD_RETURN_ERROR);
       }

       wp->flags |= PANE_REDRAW;
       server_redraw_window_borders(wp->window);
       server_status_window(wp->window);

       if (sc.argv != NULL)
               cmd_free_argv(sc.argc, sc.argv);
       environ_free(sc.environ);
       return (CMD_RETURN_NORMAL);
}