cmd-respawn-window.c

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