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Annotation of src/usr.bin/tmux/cmd-respawn-pane.c, Revision 1.18

1.18    ! nicm        1: /* $OpenBSD: cmd-respawn-pane.c,v 1.17 2015/12/13 14:32:38 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 = {
1.18    ! nicm       34:        .name = "respawn-pane",
        !            35:        .alias = "respawnp",
        !            36:
        !            37:        .args = { "kt:", 0, -1 },
        !            38:        .usage = "[-k] " CMD_TARGET_PANE_USAGE " [command]",
        !            39:
        !            40:        .flags = CMD_PANE_T,
        !            41:        .exec = cmd_respawn_pane_exec
1.1       nicm       42: };
                     43:
1.7       nicm       44: enum cmd_retval
1.8       nicm       45: cmd_respawn_pane_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       46: {
                     47:        struct args             *args = self->args;
1.17      nicm       48:        struct winlink          *wl = cmdq->state.tflag.wl;
                     49:        struct window           *w = wl->window;
                     50:        struct window_pane      *wp = cmdq->state.tflag.wp;
                     51:        struct session          *s = cmdq->state.tflag.s;
1.15      nicm       52:        struct environ          *env;
1.12      nicm       53:        const char              *path;
1.4       nicm       54:        char                    *cause;
                     55:        u_int                    idx;
1.11      nicm       56:        struct environ_entry    *envent;
1.1       nicm       57:
                     58:        if (!args_has(self->args, 'k') && wp->fd != -1) {
1.4       nicm       59:                if (window_pane_index(wp, &idx) != 0)
                     60:                        fatalx("index not found");
1.14      nicm       61:                cmdq_error(cmdq, "pane still active: %s:%d.%u",
1.4       nicm       62:                    s->name, wl->idx, idx);
1.7       nicm       63:                return (CMD_RETURN_ERROR);
1.1       nicm       64:        }
                     65:
1.15      nicm       66:        env = environ_create();
                     67:        environ_copy(global_environ, env);
                     68:        environ_copy(s->environ, env);
                     69:        server_fill_environ(s, env);
1.1       nicm       70:
                     71:        window_pane_reset_mode(wp);
1.2       nicm       72:        screen_reinit(&wp->base);
1.1       nicm       73:        input_init(wp);
                     74:
1.11      nicm       75:        path = NULL;
                     76:        if (cmdq->client != NULL && cmdq->client->session == NULL)
1.15      nicm       77:                envent = environ_find(cmdq->client->environ, "PATH");
1.11      nicm       78:        else
1.15      nicm       79:                envent = environ_find(s->environ, "PATH");
1.11      nicm       80:        if (envent != NULL)
                     81:                path = envent->value;
                     82:
1.16      nicm       83:        if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, NULL, env,
1.12      nicm       84:            s->tio, &cause) != 0) {
1.8       nicm       85:                cmdq_error(cmdq, "respawn pane failed: %s", cause);
1.6       nicm       86:                free(cause);
1.15      nicm       87:                environ_free(env);
1.7       nicm       88:                return (CMD_RETURN_ERROR);
1.1       nicm       89:        }
                     90:        wp->flags |= PANE_REDRAW;
                     91:        server_status_window(w);
                     92:
1.15      nicm       93:        environ_free(env);
1.7       nicm       94:        return (CMD_RETURN_NORMAL);
1.1       nicm       95: }