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Annotation of src/usr.bin/tmux/cmd-respawn-pane.c, Revision 1.11

1.11    ! nicm        1: /* $OpenBSD: cmd-respawn-pane.c,v 1.10 2013/10/10 12:29:53 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
                      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:
1.6       nicm       22: #include <stdlib.h>
1.1       nicm       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:
1.8       nicm       31: enum cmd_retval         cmd_respawn_pane_exec(struct cmd *, struct cmd_q *);
1.1       nicm       32:
                     33: const struct cmd_entry cmd_respawn_pane_entry = {
                     34:        "respawn-pane", "respawnp",
                     35:        "kt:", 0, 1,
                     36:        "[-k] " CMD_TARGET_PANE_USAGE " [command]",
                     37:        0,
                     38:        NULL,
                     39:        cmd_respawn_pane_exec
                     40: };
                     41:
1.7       nicm       42: enum cmd_retval
1.8       nicm       43: cmd_respawn_pane_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       44: {
                     45:        struct args             *args = self->args;
                     46:        struct winlink          *wl;
                     47:        struct window           *w;
                     48:        struct window_pane      *wp;
                     49:        struct session          *s;
                     50:        struct environ           env;
1.11    ! nicm       51:        const char              *cmd, *path;
1.4       nicm       52:        char                    *cause;
                     53:        u_int                    idx;
1.11    ! nicm       54:        struct environ_entry    *envent;
1.1       nicm       55:
1.8       nicm       56:        if ((wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp)) == NULL)
1.7       nicm       57:                return (CMD_RETURN_ERROR);
1.1       nicm       58:        w = wl->window;
                     59:
                     60:        if (!args_has(self->args, 'k') && wp->fd != -1) {
1.4       nicm       61:                if (window_pane_index(wp, &idx) != 0)
                     62:                        fatalx("index not found");
1.8       nicm       63:                cmdq_error(cmdq, "pane still active: %s:%u.%u",
1.4       nicm       64:                    s->name, wl->idx, idx);
1.7       nicm       65:                return (CMD_RETURN_ERROR);
1.1       nicm       66:        }
                     67:
                     68:        environ_init(&env);
                     69:        environ_copy(&global_environ, &env);
                     70:        environ_copy(&s->environ, &env);
                     71:        server_fill_environ(s, &env);
                     72:
                     73:        window_pane_reset_mode(wp);
1.2       nicm       74:        screen_reinit(&wp->base);
1.1       nicm       75:        input_init(wp);
                     76:
                     77:        if (args->argc != 0)
                     78:                cmd = args->argv[0];
                     79:        else
                     80:                cmd = NULL;
1.11    ! nicm       81:
        !            82:        path = NULL;
        !            83:        if (cmdq->client != NULL && cmdq->client->session == NULL)
        !            84:                envent = environ_find(&cmdq->client->environ, "PATH");
        !            85:        else
        !            86:                envent = environ_find(&s->environ, "PATH");
        !            87:        if (envent != NULL)
        !            88:                path = envent->value;
        !            89:
        !            90:        if (window_pane_spawn(wp, cmd, path, NULL, -1, &env, s->tio,
        !            91:            &cause) != 0) {
1.8       nicm       92:                cmdq_error(cmdq, "respawn pane failed: %s", cause);
1.6       nicm       93:                free(cause);
1.1       nicm       94:                environ_free(&env);
1.7       nicm       95:                return (CMD_RETURN_ERROR);
1.1       nicm       96:        }
                     97:        wp->flags |= PANE_REDRAW;
                     98:        server_status_window(w);
                     99:
                    100:        environ_free(&env);
1.7       nicm      101:        return (CMD_RETURN_NORMAL);
1.1       nicm      102: }