1 /* $OpenBSD: cmd-respawn-window.c,v 1.36 2017/07/21 09:17:19 nicm Exp $ */ 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 = { "c:kt:", 0, -1 }, 38 .usage = "[-c start-directory] [-k] " CMD_TARGET_WINDOW_USAGE 39 " [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 = self->args; 51 struct session *s = item->target.s; 52 struct winlink *wl = item->target.wl; 53 struct window *w = wl->window; 54 struct window_pane *wp; 55 struct client *c = cmd_find_client(item, NULL, 1); 56 struct environ *env; 57 const char *path = NULL, *cp; 58 char *cause, *cwd = NULL; 59 struct environ_entry *envent; 60 61 if (!args_has(self->args, 'k')) { 62 TAILQ_FOREACH(wp, &w->panes, entry) { 63 if (wp->fd == -1) 64 continue; 65 cmdq_error(item, "window still active: %s:%d", s->name, 66 wl->idx); 67 return (CMD_RETURN_ERROR); 68 } 69 } 70 71 wp = TAILQ_FIRST(&w->panes); 72 TAILQ_REMOVE(&w->panes, wp, entry); 73 layout_free(w); 74 window_destroy_panes(w); 75 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 76 window_pane_resize(wp, w->sx, w->sy); 77 78 if (item->client != NULL && item->client->session == NULL) 79 envent = environ_find(item->client->environ, "PATH"); 80 else 81 envent = environ_find(s->environ, "PATH"); 82 if (envent != NULL) 83 path = envent->value; 84 85 if ((cp = args_get(args, 'c')) != NULL) 86 cwd = format_single(item, cp, c, s, NULL, NULL); 87 88 env = environ_for_session(s, 0); 89 if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, cwd, env, 90 s->tio, &cause) != 0) { 91 cmdq_error(item, "respawn window failed: %s", cause); 92 free(cause); 93 environ_free(env); 94 free(cwd); 95 server_destroy_pane(wp, 0); 96 return (CMD_RETURN_ERROR); 97 } 98 environ_free(env); 99 free(cwd); 100 101 layout_init(w, wp); 102 window_pane_reset_mode(wp); 103 screen_reinit(&wp->base); 104 input_init(wp); 105 window_set_active_pane(w, wp); 106 107 recalculate_sizes(); 108 server_redraw_window(w); 109 110 return (CMD_RETURN_NORMAL); 111 } 112