mirror of
https://github.com/tmux/tmux.git
synced 2024-11-18 02:18:53 +00:00
9dd72b9583
so on but where the linked windows are synchronized (ie creating, killing windows and so on are mirrored between the sessions). A grouped session may be created by passing -t to new-session. Had this around for a while, tested by a couple of people.
317 lines
8.3 KiB
C
317 lines
8.3 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include <termios.h>
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#include "tmux.h"
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/*
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* Create a new session and attach to the current terminal unless -d is given.
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*/
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int cmd_new_session_parse(struct cmd *, int, char **, char **);
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int cmd_new_session_exec(struct cmd *, struct cmd_ctx *);
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void cmd_new_session_free(struct cmd *);
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void cmd_new_session_init(struct cmd *, int);
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size_t cmd_new_session_print(struct cmd *, char *, size_t);
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struct cmd_new_session_data {
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char *target;
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char *newname;
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char *winname;
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char *cmd;
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int flag_detached;
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};
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const struct cmd_entry cmd_new_session_entry = {
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"new-session", "new",
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"[-d] [-n window-name] [-s session-name] [-t target-session] [command]",
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CMD_STARTSERVER|CMD_CANTNEST|CMD_SENDENVIRON, 0,
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cmd_new_session_init,
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cmd_new_session_parse,
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cmd_new_session_exec,
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cmd_new_session_free,
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cmd_new_session_print
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};
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void
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cmd_new_session_init(struct cmd *self, unused int arg)
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{
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struct cmd_new_session_data *data;
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self->data = data = xmalloc(sizeof *data);
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data->flag_detached = 0;
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data->target = NULL;
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data->newname = NULL;
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data->winname = NULL;
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data->cmd = NULL;
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}
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int
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cmd_new_session_parse(struct cmd *self, int argc, char **argv, char **cause)
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{
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struct cmd_new_session_data *data;
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int opt;
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self->entry->init(self, KEYC_NONE);
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data = self->data;
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while ((opt = getopt(argc, argv, "ds:t:n:")) != -1) {
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switch (opt) {
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case 'd':
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data->flag_detached = 1;
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break;
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case 's':
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if (data->newname == NULL)
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data->newname = xstrdup(optarg);
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break;
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case 't':
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if (data->target == NULL)
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data->target = xstrdup(optarg);
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break;
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case 'n':
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if (data->winname == NULL)
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data->winname = xstrdup(optarg);
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break;
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default:
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goto usage;
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 0 && argc != 1)
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goto usage;
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if (data->target != NULL && (argc == 1 || data->winname != NULL))
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goto usage;
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if (argc == 1)
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data->cmd = xstrdup(argv[0]);
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return (0);
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usage:
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xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
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self->entry->free(self);
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return (-1);
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}
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int
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cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_new_session_data *data = self->data;
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struct session *s, *groupwith;
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struct window *w;
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struct environ env;
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struct termios tio, *tiop;
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const char *update;
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char *overrides, *cmd, *cwd, *cause;
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int detached, idx;
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u_int sx, sy;
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if (data->newname != NULL && session_find(data->newname) != NULL) {
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ctx->error(ctx, "duplicate session: %s", data->newname);
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return (-1);
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}
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groupwith = NULL;
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if (data->target != NULL &&
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(groupwith = cmd_find_session(ctx, data->target)) == NULL)
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return (-1);
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/*
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* There are three cases:
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*
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* 1. If cmdclient is non-NULL, new-session has been called from the
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* command-line - cmdclient is to become a new attached, interactive
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* client. Unless -d is given, the terminal must be opened and then
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* the client sent MSG_READY.
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*
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* 2. If cmdclient is NULL, new-session has been called from an
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* existing client (such as a key binding).
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*
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* 3. Both are NULL, the command was in the configuration file. Treat
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* this as if -d was given even if it was not.
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*
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* In all cases, a new additional session needs to be created and
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* (unless -d) set as the current session for the client.
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*/
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/* Set -d if no client. */
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detached = data->flag_detached;
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if (ctx->cmdclient == NULL && ctx->curclient == NULL)
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detached = 1;
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/*
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* Save the termios settings, part of which is used for new windows in
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* this session.
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*
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* This is read again with tcgetattr() rather than using tty.tio as if
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* detached, tty_open won't be called. Because of this, it must be done
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* before opening the terminal as that calls tcsetattr() to prepare for
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* tmux taking over.
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*/
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if (ctx->cmdclient != NULL && ctx->cmdclient->tty.fd != -1) {
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if (tcgetattr(ctx->cmdclient->tty.fd, &tio) != 0)
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fatal("tcgetattr failed");
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tiop = &tio;
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} else
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tiop = NULL;
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/* Open the terminal if necessary. */
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if (!detached && ctx->cmdclient != NULL) {
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if (!(ctx->cmdclient->flags & CLIENT_TERMINAL)) {
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ctx->error(ctx, "not a terminal");
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return (-1);
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}
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overrides =
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options_get_string(&global_s_options, "terminal-overrides");
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if (tty_open(&ctx->cmdclient->tty, overrides, &cause) != 0) {
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ctx->error(ctx, "open terminal failed: %s", cause);
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xfree(cause);
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return (-1);
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}
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}
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/* Get the new session working directory. */
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if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
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cwd = ctx->cmdclient->cwd;
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else
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cwd = options_get_string(&global_s_options, "default-path");
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/* Find new session size. */
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if (detached) {
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sx = 80;
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sy = 24;
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} else if (ctx->cmdclient != NULL) {
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sx = ctx->cmdclient->tty.sx;
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sy = ctx->cmdclient->tty.sy;
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} else {
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sx = ctx->curclient->tty.sx;
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sy = ctx->curclient->tty.sy;
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}
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if (sy > 0 && options_get_number(&global_s_options, "status"))
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sy--;
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if (sx == 0)
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sx = 1;
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if (sy == 0)
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sy = 1;
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/* Figure out the command for the new window. */
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if (data->target != NULL)
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cmd = NULL;
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else if (data->cmd != NULL)
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cmd = data->cmd;
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else
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cmd = options_get_string(&global_s_options, "default-command");
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/* Construct the environment. */
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environ_init(&env);
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update = options_get_string(&global_s_options, "update-environment");
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if (ctx->cmdclient != NULL)
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environ_update(update, &ctx->cmdclient->environ, &env);
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/* Create the new session. */
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idx = -1 - options_get_number(&global_s_options, "base-index");
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s = session_create(
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data->newname, cmd, cwd, &env, tiop, idx, sx, sy, &cause);
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if (s == NULL) {
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ctx->error(ctx, "create session failed: %s", cause);
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xfree(cause);
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return (-1);
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}
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environ_free(&env);
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/* Set the initial window name if one given. */
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if (cmd != NULL && data->winname != NULL) {
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w = s->curw->window;
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xfree(w->name);
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w->name = xstrdup(data->winname);
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options_set_number(&w->options, "automatic-rename", 0);
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}
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/*
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* If a target session is given, this is to be part of a session group,
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* so add it to the group and synchronize.
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*/
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if (groupwith != NULL) {
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session_group_add(groupwith, s);
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session_group_synchronize_to(s);
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session_select(s, RB_ROOT(&s->windows)->idx);
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}
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/*
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* Set the client to the new session. If a command client exists, it is
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* taking this session and needs to get MSG_READY and stay around.
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*/
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if (!detached) {
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if (ctx->cmdclient != NULL) {
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server_write_client(ctx->cmdclient, MSG_READY, NULL, 0);
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ctx->cmdclient->session = s;
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server_redraw_client(ctx->cmdclient);
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} else {
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ctx->curclient->session = s;
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server_redraw_client(ctx->curclient);
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}
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}
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recalculate_sizes();
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return (!detached); /* 1 means don't tell command client to exit */
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}
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void
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cmd_new_session_free(struct cmd *self)
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{
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struct cmd_new_session_data *data = self->data;
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if (data->newname != NULL)
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xfree(data->newname);
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if (data->winname != NULL)
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xfree(data->winname);
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if (data->cmd != NULL)
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xfree(data->cmd);
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xfree(data);
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}
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size_t
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cmd_new_session_print(struct cmd *self, char *buf, size_t len)
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{
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struct cmd_new_session_data *data = self->data;
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size_t off = 0;
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off += xsnprintf(buf, len, "%s", self->entry->name);
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if (data == NULL)
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return (off);
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if (off < len && data->flag_detached)
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off += xsnprintf(buf + off, len - off, " -d");
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if (off < len && data->newname != NULL)
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off += cmd_prarg(buf + off, len - off, " -s ", data->newname);
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if (off < len && data->winname != NULL)
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off += cmd_prarg(buf + off, len - off, " -n ", data->winname);
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if (off < len && data->cmd != NULL)
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off += cmd_prarg(buf + off, len - off, " ", data->cmd);
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return (off);
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}
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