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tmux 2.4

    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 <unistd.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 = { "kt:", 0, -1 },
   38: 	.usage = "[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
   39: 
   40: 	.tflag = CMD_WINDOW,
   41: 
   42: 	.flags = 0,
   43: 	.exec = cmd_respawn_window_exec
   44: };
   45: 
   46: static enum cmd_retval
   47: cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
   48: {
   49: 	struct args		*args = self->args;
   50: 	struct session		*s = item->state.tflag.s;
   51: 	struct winlink		*wl = item->state.tflag.wl;
   52: 	struct window		*w = wl->window;
   53: 	struct window_pane	*wp;
   54: 	struct environ		*env;
   55: 	const char		*path;
   56: 	char		 	*cause;
   57: 	struct environ_entry	*envent;
   58: 
   59: 	if (!args_has(self->args, 'k')) {
   60: 		TAILQ_FOREACH(wp, &w->panes, entry) {
   61: 			if (wp->fd == -1)
   62: 				continue;
   63: 			cmdq_error(item, "window still active: %s:%d", s->name,
   64: 			    wl->idx);
   65: 			return (CMD_RETURN_ERROR);
   66: 		}
   67: 	}
   68: 
   69: 	wp = TAILQ_FIRST(&w->panes);
   70: 	TAILQ_REMOVE(&w->panes, wp, entry);
   71: 	layout_free(w);
   72: 	window_destroy_panes(w);
   73: 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
   74: 	window_pane_resize(wp, w->sx, w->sy);
   75: 
   76: 	path = NULL;
   77: 	if (item->client != NULL && item->client->session == NULL)
   78: 		envent = environ_find(item->client->environ, "PATH");
   79: 	else
   80: 		envent = environ_find(s->environ, "PATH");
   81: 	if (envent != NULL)
   82: 		path = envent->value;
   83: 
   84: 	env = environ_for_session(s);
   85: 	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, NULL, env,
   86: 	    s->tio, &cause) != 0) {
   87: 		cmdq_error(item, "respawn window failed: %s", cause);
   88: 		free(cause);
   89: 		environ_free(env);
   90: 		server_destroy_pane(wp, 0);
   91: 		return (CMD_RETURN_ERROR);
   92: 	}
   93: 	environ_free(env);
   94: 	layout_init(w, wp);
   95: 	window_pane_reset_mode(wp);
   96: 	screen_reinit(&wp->base);
   97: 	input_init(wp);
   98: 	window_set_active_pane(w, wp);
   99: 
  100: 	recalculate_sizes();
  101: 	server_redraw_window(w);
  102: 
  103: 	return (CMD_RETURN_NORMAL);
  104: }