/* $OpenBSD: cmd-respawn-pane.c,v 1.41 2026/10/09 13:12:14 nicm Exp $ */

/*

 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>

 * Copyright (c) 2011 Marcel P. Partap <mpartap@gmx.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 <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",

  .description = "Restart a pane's command.",

  .alias = "respawnp",

  .args = { "c:e:Ekt:", 0, -1, NULL },

  .usage = "[-Ek] [-c start-directory] [-e environment] "

     CMD_TARGET_PANE_USAGE " [shell-command [argument ...]]",

  .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, 'E'))

    sc.flags |= SPAWN_EMPTY;

  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);

}