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Annotation of src/usr.bin/tmux/cmd-respawn-window.c, Revision 1.24

1.24    ! nicm        1: /* $OpenBSD: cmd-respawn-window.c,v 1.23 2014/10/20 22:29:25 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
                      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:
1.15      nicm       21: #include <stdlib.h>
1.1       nicm       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:
1.17      nicm       30: enum cmd_retval         cmd_respawn_window_exec(struct cmd *, struct cmd_q *);
1.1       nicm       31:
                     32: const struct cmd_entry cmd_respawn_window_entry = {
                     33:        "respawn-window", "respawnw",
1.22      nicm       34:        "kt:", 0, -1,
1.1       nicm       35:        "[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
1.13      nicm       36:        0,
                     37:        cmd_respawn_window_exec
1.1       nicm       38: };
                     39:
1.16      nicm       40: enum cmd_retval
1.17      nicm       41: cmd_respawn_window_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       42: {
1.13      nicm       43:        struct args             *args = self->args;
1.1       nicm       44:        struct winlink          *wl;
                     45:        struct window           *w;
                     46:        struct window_pane      *wp;
                     47:        struct session          *s;
1.24    ! nicm       48:        struct environ          *env;
1.22      nicm       49:        const char              *path;
1.1       nicm       50:        char                    *cause;
1.21      nicm       51:        struct environ_entry    *envent;
1.1       nicm       52:
1.17      nicm       53:        if ((wl = cmd_find_window(cmdq, args_get(args, 't'), &s)) == NULL)
1.16      nicm       54:                return (CMD_RETURN_ERROR);
1.1       nicm       55:        w = wl->window;
                     56:
1.13      nicm       57:        if (!args_has(self->args, 'k')) {
1.1       nicm       58:                TAILQ_FOREACH(wp, &w->panes, entry) {
                     59:                        if (wp->fd == -1)
                     60:                                continue;
1.17      nicm       61:                        cmdq_error(cmdq,
1.1       nicm       62:                            "window still active: %s:%d", s->name, wl->idx);
1.16      nicm       63:                        return (CMD_RETURN_ERROR);
1.1       nicm       64:                }
                     65:        }
                     66:
1.24    ! nicm       67:        env = environ_create();
        !            68:        environ_copy(global_environ, env);
        !            69:        environ_copy(s->environ, env);
        !            70:        server_fill_environ(s, env);
1.1       nicm       71:
                     72:        wp = TAILQ_FIRST(&w->panes);
                     73:        TAILQ_REMOVE(&w->panes, wp, entry);
1.3       nicm       74:        layout_free(w);
1.12      nicm       75:        window_destroy_panes(w);
1.1       nicm       76:        TAILQ_INSERT_HEAD(&w->panes, wp, entry);
                     77:        window_pane_resize(wp, w->sx, w->sy);
1.21      nicm       78:
                     79:        path = NULL;
                     80:        if (cmdq->client != NULL && cmdq->client->session == NULL)
1.24    ! nicm       81:                envent = environ_find(cmdq->client->environ, "PATH");
1.21      nicm       82:        else
1.24    ! nicm       83:                envent = environ_find(s->environ, "PATH");
1.21      nicm       84:        if (envent != NULL)
                     85:                path = envent->value;
                     86:
1.24    ! nicm       87:        if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, -1, env,
1.22      nicm       88:            s->tio, &cause) != 0) {
1.17      nicm       89:                cmdq_error(cmdq, "respawn window failed: %s", cause);
1.15      nicm       90:                free(cause);
1.24    ! nicm       91:                environ_free(env);
1.10      nicm       92:                server_destroy_pane(wp);
1.16      nicm       93:                return (CMD_RETURN_ERROR);
1.1       nicm       94:        }
1.18      nicm       95:        layout_init(w, wp);
1.14      nicm       96:        window_pane_reset_mode(wp);
1.1       nicm       97:        screen_reinit(&wp->base);
1.14      nicm       98:        input_init(wp);
1.4       nicm       99:        window_set_active_pane(w, wp);
1.1       nicm      100:
                    101:        recalculate_sizes();
                    102:        server_redraw_window(w);
                    103:
1.24    ! nicm      104:        environ_free(env);
1.16      nicm      105:        return (CMD_RETURN_NORMAL);
1.1       nicm      106: }