enum cmd_retval
cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct client *c = cmdq->client;
struct session *s, *as;
struct session *groupwith = cmdq->state.tflag.s;
struct window *w;
struct environ *env;
struct termios tio, *tiop;
const char *newname, *target, *update, *errstr, *template;
const char *path, *cwd, *to_free = NULL;
char **argv, *cmd, *cause, *cp;
int detached, already_attached, idx, argc;
u_int sx, sy;
struct format_tree *ft;
struct environ_entry *envent;
if (self->entry == &cmd_has_session_entry) {
/*
* cmd_prepare() will fail if the session cannot be found,
* hence always return success here.
*/
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 't') && (args->argc != 0 || args_has(args, 'n'))) {
cmdq_error(cmdq, "command or window name given with target");
return (CMD_RETURN_ERROR);
}
newname = args_get(args, 's');
if (newname != NULL) {
if (!session_check_name(newname)) {
cmdq_error(cmdq, "bad session name: %s", newname);
return (CMD_RETURN_ERROR);
}
if ((as = session_find(newname)) != NULL) {
if (args_has(args, 'A')) {
/*
* This cmdq is now destined for
* attach-session. Because attach-session
* will have already been prepared, copy this
* session into its tflag so it can be used.
*/
cmd_find_from_session(&cmdq->state.tflag, as);
return (cmd_attach_session(cmdq,
args_has(args, 'D'), 0, NULL,
args_has(args, 'E')));
}
cmdq_error(cmdq, "duplicate session: %s", newname);
return (CMD_RETURN_ERROR);
}
}
if ((target = args_get(args, 't')) != NULL) {
if (groupwith == NULL) {
cmdq_error(cmdq, "no such session: %s", target);
goto error;
}
} else
groupwith = NULL;
/* Set -d if no client. */
detached = args_has(args, 'd');
if (c == NULL)
detached = 1;
/* Is this client already attached? */
already_attached = 0;
if (c != NULL && c->session != NULL)
already_attached = 1;
/* Get the new session working directory. */
if (args_has(args, 'c')) {
ft = format_create(cmdq, 0);
format_defaults(ft, c, NULL, NULL, NULL);
to_free = cwd = format_expand(ft, args_get(args, 'c'));
format_free(ft);
} else if (c != NULL && c->session == NULL && c->cwd != NULL)
cwd = c->cwd;
else
cwd = ".";
/*
* If this is a new client, check for nesting and save the termios
* settings (part of which is used for new windows in this session).
*
* tcgetattr() is used rather than using tty.tio since if the client is
* detached, tty_open won't be called. It must be done before opening
* the terminal as that calls tcsetattr() to prepare for tmux taking
* over.
*/
if (!detached && !already_attached && c->tty.fd != -1) {
if (server_client_check_nested(cmdq->client)) {
cmdq_error(cmdq, "sessions should be nested with care, "
"unset $TMUX to force");
return (CMD_RETURN_ERROR);
}
if (tcgetattr(c->tty.fd, &tio) != 0)
fatal("tcgetattr failed");
tiop = &tio;
} else
tiop = NULL;
/* Open the terminal if necessary. */
if (!detached && !already_attached) {
if (server_client_open(c, &cause) != 0) {
cmdq_error(cmdq, "open terminal failed: %s", cause);
free(cause);
goto error;
}
}
/* Find new session size. */
if (c != NULL) {
sx = c->tty.sx;
sy = c->tty.sy;
} else {
sx = 80;
sy = 24;
}
if (detached && args_has(args, 'x')) {
sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
if (errstr != NULL) {
cmdq_error(cmdq, "width %s", errstr);
goto error;
}
}
if (detached && args_has(args, 'y')) {
sy = strtonum(args_get(args, 'y'), 1, USHRT_MAX, &errstr);
if (errstr != NULL) {
cmdq_error(cmdq, "height %s", errstr);
goto error;
}
}
if (sy > 0 && options_get_number(global_s_options, "status"))
sy--;
if (sx == 0)
sx = 1;
if (sy == 0)
sy = 1;
/* Figure out the command for the new window. */
argc = -1;
argv = NULL;
if (!args_has(args, 't') && args->argc != 0) {
argc = args->argc;
argv = args->argv;
} else if (groupwith == NULL) {
cmd = options_get_string(global_s_options, "default-command");
if (cmd != NULL && *cmd != '\0') {
argc = 1;
argv = &cmd;
} else {
argc = 0;
argv = NULL;
}
}
path = NULL;
if (c != NULL && c->session == NULL)
envent = environ_find(c->environ, "PATH");
else
envent = environ_find(global_environ, "PATH");
if (envent != NULL)
path = envent->value;
/* Construct the environment. */
env = environ_create();
if (c != NULL && !args_has(args, 'E')) {
update = options_get_string(global_s_options,
"update-environment");
environ_update(update, c->environ, env);
}
/* Create the new session. */
idx = -1 - options_get_number(global_s_options, "base-index");
s = session_create(newname, argc, argv, path, cwd, env, tiop, idx, sx,
sy, &cause);
environ_free(env);
if (s == NULL) {
cmdq_error(cmdq, "create session failed: %s", cause);
free(cause);
goto error;
}
/* Set the initial window name if one given. */
if (argc >= 0 && args_has(args, 'n')) {
w = s->curw->window;
window_set_name(w, args_get(args, 'n'));
options_set_number(w->options, "automatic-rename", 0);
}
/*
* If a target session is given, this is to be part of a session group,
* so add it to the group and synchronize.
*/
if (groupwith != NULL) {
session_group_add(groupwith, s);
session_group_synchronize_to(s);
session_select(s, RB_MIN(winlinks, &s->windows)->idx);
}
/*
* Set the client to the new session. If a command client exists, it is
* taking this session and needs to get MSG_READY and stay around.
*/
if (!detached) {
if (!already_attached) {
if (~c->flags & CLIENT_CONTROL)
proc_send(c->peer, MSG_READY, -1, NULL, 0);
} else if (c->session != NULL)
c->last_session = c->session;
c->session = s;
server_client_set_key_table(c, NULL);
status_timer_start(c);
notify_attached_session_changed(c);
session_update_activity(s, NULL);
gettimeofday(&s->last_attached_time, NULL);
server_redraw_client(c);
}
recalculate_sizes();
server_update_socket();
/*
* If there are still configuration file errors to display, put the new
* session's current window into more mode and display them now.
*/
if (cfg_finished)
cfg_show_causes(s);
/* Print if requested. */
if (args_has(args, 'P')) {
if ((template = args_get(args, 'F')) == NULL)
static enum cmd_retval
cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
const char *tflag = args_get(args, 't');
enum cmd_find_type type;
int flags;
struct client *c;
struct session *s;
struct winlink *wl;
struct window_pane *wp;
const char *tablename;
struct key_table *table;
if ((c = cmd_find_client(item, args_get(args, 'c'), 0)) == NULL)
return (CMD_RETURN_ERROR);
if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
type = CMD_FIND_PANE;
flags = 0;
} else {
type = CMD_FIND_SESSION;
flags = CMD_FIND_PREFER_UNATTACHED;
}
if (cmd_find_target(&item->target, item, tflag, type, flags) != 0)
return (CMD_RETURN_ERROR);
s = item->target.s;
wl = item->target.wl;
wp = item->target.wp;
if (args_has(args, 'r'))
c->flags ^= CLIENT_READONLY;
tablename = args_get(args, 'T');
if (tablename != NULL) {
table = key_bindings_get_table(tablename, 0);
if (table == NULL) {
cmdq_error(item, "table %s doesn't exist", tablename);
return (CMD_RETURN_ERROR);
}
table->references++;
key_bindings_unref_table(c->keytable);
c->keytable = table;
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'n')) {
if ((s = session_next_session(c->session)) == NULL) {
cmdq_error(item, "can't find next session");
return (CMD_RETURN_ERROR);
}
} else if (args_has(args, 'p')) {
if ((s = session_previous_session(c->session)) == NULL) {
cmdq_error(item, "can't find previous session");
return (CMD_RETURN_ERROR);
}
} else if (args_has(args, 'l')) {
if (c->last_session != NULL && session_alive(c->last_session))
s = c->last_session;
else
s = NULL;
if (s == NULL) {
cmdq_error(item, "can't find last session");
return (CMD_RETURN_ERROR);
}
} else {
if (item->client == NULL)
return (CMD_RETURN_NORMAL);
if (wl != NULL) {
if (wp != NULL)
window_set_active_pane(wp->window, wp);
session_set_current(s, wl);
cmd_find_from_session(&item->shared->current, s, 0);
}
}
if (!args_has(args, 'E'))
environ_update(s->options, c->environ, s->environ);
if (c->session != NULL && c->session != s)
c->last_session = c->session;
c->session = s;
if (~item->shared->flags & CMDQ_SHARED_REPEAT)
server_client_set_key_table(c, NULL);
tty_update_client_offset(c);
status_timer_start(c);
notify_client("client-session-changed", c);
session_update_activity(s, NULL);
gettimeofday(&s->last_attached_time, NULL);
recalculate_sizes();
server_check_unattached();
server_redraw_client(c);
s->curw->flags &= ~WINLINK_ALERTFLAGS;
alerts_check_session(s);
return (CMD_RETURN_NORMAL);
}
static enum cmd_retval
cmd_switch_client_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct cmd_state *state = &cmdq->state;
struct client *c = state->c;
struct session *s = cmdq->state.tflag.s;
struct window_pane *wp;
const char *tablename, *update;
struct key_table *table;
if (args_has(args, 'r'))
c->flags ^= CLIENT_READONLY;
tablename = args_get(args, 'T');
if (tablename != NULL) {
table = key_bindings_get_table(tablename, 0);
if (table == NULL) {
cmdq_error(cmdq, "table %s doesn't exist", tablename);
return (CMD_RETURN_ERROR);
}
table->references++;
key_bindings_unref_table(c->keytable);
c->keytable = table;
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'n')) {
if ((s = session_next_session(c->session)) == NULL) {
cmdq_error(cmdq, "can't find next session");
return (CMD_RETURN_ERROR);
}
} else if (args_has(args, 'p')) {
if ((s = session_previous_session(c->session)) == NULL) {
cmdq_error(cmdq, "can't find previous session");
return (CMD_RETURN_ERROR);
}
} else if (args_has(args, 'l')) {
if (c->last_session != NULL && session_alive(c->last_session))
s = c->last_session;
else
s = NULL;
if (s == NULL) {
cmdq_error(cmdq, "can't find last session");
return (CMD_RETURN_ERROR);
}
} else {
if (cmdq->client == NULL)
return (CMD_RETURN_NORMAL);
if (state->tflag.wl != NULL) {
wp = state->tflag.wp;
if (wp != NULL)
window_set_active_pane(wp->window, wp);
session_set_current(s, state->tflag.wl);
}
}
if (c != NULL && !args_has(args, 'E')) {
update = options_get_string(s->options, "update-environment");
environ_update(update, c->environ, s->environ);
}
if (c->session != NULL && c->session != s)
c->last_session = c->session;
c->session = s;
server_client_set_key_table(c, NULL);
status_timer_start(c);
session_update_activity(s, NULL);
gettimeofday(&s->last_attached_time, NULL);
recalculate_sizes();
server_check_unattached();
server_redraw_client(c);
s->curw->flags &= ~WINLINK_ALERTFLAGS;
alerts_check_session(s);
return (CMD_RETURN_NORMAL);
}