mirror of
https://github.com/tmate-io/tmate.git
synced 2024-12-27 00:58:56 +01:00
20636d956d
commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/* $OpenBSD$ */
|
|
|
|
/*
|
|
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
/*
|
|
* Show environment.
|
|
*/
|
|
|
|
enum cmd_retval cmd_show_environment_exec(struct cmd *, struct cmd_q *);
|
|
|
|
const struct cmd_entry cmd_show_environment_entry = {
|
|
"show-environment", "showenv",
|
|
"gt:", 0, 1,
|
|
"[-g] " CMD_TARGET_SESSION_USAGE " [name]",
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
cmd_show_environment_exec
|
|
};
|
|
|
|
enum cmd_retval
|
|
cmd_show_environment_exec(struct cmd *self, struct cmd_q *cmdq)
|
|
{
|
|
struct args *args = self->args;
|
|
struct session *s;
|
|
struct environ *env;
|
|
struct environ_entry *envent;
|
|
|
|
if (args_has(self->args, 'g'))
|
|
env = &global_environ;
|
|
else {
|
|
if ((s = cmd_find_session(cmdq, args_get(args, 't'), 0)) == NULL)
|
|
return (CMD_RETURN_ERROR);
|
|
env = &s->environ;
|
|
}
|
|
|
|
if (args->argc != 0) {
|
|
envent = environ_find(env, args->argv[0]);
|
|
if (envent == NULL) {
|
|
cmdq_error(cmdq, "unknown variable: %s", args->argv[0]);
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
if (envent->value != NULL)
|
|
cmdq_print(cmdq, "%s=%s", envent->name, envent->value);
|
|
else
|
|
cmdq_print(cmdq, "-%s", envent->name);
|
|
return (CMD_RETURN_NORMAL);
|
|
}
|
|
|
|
RB_FOREACH(envent, environ, env) {
|
|
if (envent->value != NULL)
|
|
cmdq_print(cmdq, "%s=%s", envent->name, envent->value);
|
|
else
|
|
cmdq_print(cmdq, "-%s", envent->name);
|
|
}
|
|
|
|
return (CMD_RETURN_NORMAL);
|
|
}
|