1 /* $OpenBSD: cmd-respawn-window.c,v 1.32 2016/10/16 19:04:05 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 = { "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 env = environ_create(); 70 environ_copy(global_environ, env); 71 environ_copy(s->environ, env); 72 server_fill_environ(s, env); 73 74 wp = TAILQ_FIRST(&w->panes); 75 TAILQ_REMOVE(&w->panes, wp, entry); 76 layout_free(w); 77 window_destroy_panes(w); 78 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 79 window_pane_resize(wp, w->sx, w->sy); 80 81 path = NULL; 82 if (item->client != NULL && item->client->session == NULL) 83 envent = environ_find(item->client->environ, "PATH"); 84 else 85 envent = environ_find(s->environ, "PATH"); 86 if (envent != NULL) 87 path = envent->value; 88 89 if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, NULL, env, 90 s->tio, &cause) != 0) { 91 cmdq_error(item, "respawn window failed: %s", cause); 92 free(cause); 93 environ_free(env); 94 server_destroy_pane(wp, 0); 95 return (CMD_RETURN_ERROR); 96 } 97 layout_init(w, wp); 98 window_pane_reset_mode(wp); 99 screen_reinit(&wp->base); 100 input_init(wp); 101 window_set_active_pane(w, wp); 102 103 recalculate_sizes(); 104 server_redraw_window(w); 105 106 environ_free(env); 107 return (CMD_RETURN_NORMAL); 108 } 109