cmd-respawn-pane.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
   5  * Copyright (c) 2011 Marcel P. Partap <mpartap@gmx.net>
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #include <sys/types.h>
  21
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "tmux.h"
  26
  27 /*
  28  * Respawn a pane (restart the command). Kill existing if -k given.
  29  */
  30
  31 static enum cmd_retval  cmd_respawn_pane_exec(struct cmd *, struct cmdq_item *);
  32
  33 const struct cmd_entry cmd_respawn_pane_entry = {
  34         .name = "respawn-pane",
  35         .alias = "respawnp",
  36
  37         .args = { "c:e:kt:", 0, -1, NULL },
  38         .usage = "[-k] [-c start-directory] [-e environment] "
  39                  CMD_TARGET_PANE_USAGE " [shell-command]",
  40
  41         .target = { 't', CMD_FIND_PANE, 0 },
  42
  43         .flags = 0,
  44         .exec = cmd_respawn_pane_exec
  45 };
  46
  47 static enum cmd_retval
  48 cmd_respawn_pane_exec(struct cmd *self, struct cmdq_item *item)
  49 {
  50         struct args             *args = cmd_get_args(self);
  51         struct cmd_find_state   *target = cmdq_get_target(item);
  52         struct spawn_context     sc = { 0 };
  53         struct session          *s = target->s;
  54         struct winlink          *wl = target->wl;
  55         struct window_pane      *wp = target->wp;
  56         char                    *cause = NULL;
  57         struct args_value       *av;
  58
  59         sc.item = item;
  60         sc.s = s;
  61         sc.wl = wl;
  62
  63         sc.wp0 = wp;
  64
  65         args_to_vector(args, &sc.argc, &sc.argv);
  66         sc.environ = environ_create();
  67
  68         av = args_first_value(args, 'e');
  69         while (av != NULL) {
  70                 environ_put(sc.environ, av->string, 0);
  71                 av = args_next_value(av);
  72         }
  73
  74         sc.idx = -1;
  75         sc.cwd = args_get(args, 'c');
  76
  77         sc.flags = SPAWN_RESPAWN;
  78         if (args_has(args, 'k'))
  79                 sc.flags |= SPAWN_KILL;
  80
  81         if (spawn_pane(&sc, &cause) == NULL) {
  82                 cmdq_error(item, "respawn pane failed: %s", cause);
  83                 free(cause);
  84                 if (sc.argv != NULL)
  85                         cmd_free_argv(sc.argc, sc.argv);
  86                 environ_free(sc.environ);
  87                 return (CMD_RETURN_ERROR);
  88         }
  89
  90         wp->flags |= PANE_REDRAW;
  91         server_redraw_window_borders(wp->window);
  92         server_status_window(wp->window);
  93
  94         if (sc.argv != NULL)
  95                 cmd_free_argv(sc.argc, sc.argv);
  96         environ_free(sc.environ);
  97         return (CMD_RETURN_NORMAL);
  98 }