1 /* $OpenBSD: cmd-respawn-pane.c,v 1.26 2017/07/21 09:17:19 nicm Exp $ */ 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 <unistd.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:kt:", 0, -1 }, 38 .usage = "[-c start-directory] [-k] " CMD_TARGET_PANE_USAGE 39 " [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 = self->args; 51 struct winlink *wl = item->target.wl; 52 struct window *w = wl->window; 53 struct window_pane *wp = item->target.wp; 54 struct client *c = cmd_find_client(item, NULL, 1); 55 struct session *s = item->target.s; 56 struct environ *env; 57 const char *path = NULL, *cp; 58 char *cause, *cwd = NULL; 59 u_int idx; 60 struct environ_entry *envent; 61 62 if (!args_has(self->args, 'k') && wp->fd != -1) { 63 if (window_pane_index(wp, &idx) != 0) 64 fatalx("index not found"); 65 cmdq_error(item, "pane still active: %s:%d.%u", 66 s->name, wl->idx, idx); 67 return (CMD_RETURN_ERROR); 68 } 69 70 window_pane_reset_mode(wp); 71 screen_reinit(&wp->base); 72 input_init(wp); 73 74 if (item->client != NULL && item->client->session == NULL) 75 envent = environ_find(item->client->environ, "PATH"); 76 else 77 envent = environ_find(s->environ, "PATH"); 78 if (envent != NULL) 79 path = envent->value; 80 81 if ((cp = args_get(args, 'c')) != NULL) 82 cwd = format_single(item, cp, c, s, NULL, NULL); 83 84 env = environ_for_session(s, 0); 85 if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, cwd, env, 86 s->tio, &cause) != 0) { 87 cmdq_error(item, "respawn pane failed: %s", cause); 88 free(cause); 89 environ_free(env); 90 free(cwd); 91 return (CMD_RETURN_ERROR); 92 } 93 environ_free(env); 94 free(cwd); 95 96 wp->flags |= PANE_REDRAW; 97 server_status_window(w); 98 99 return (CMD_RETURN_NORMAL); 100 } 101