mirror of
https://github.com/tmux/tmux.git
synced 2025-11-04 01:34:18 +00:00
3964309c67
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.
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/* $Id$ */
|
|
|
|
/*
|
|
* 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"
|
|
|
|
/*
|
|
* Set an environment variable.
|
|
*/
|
|
|
|
enum cmd_retval cmd_set_environment_exec(struct cmd *, struct cmd_q *);
|
|
|
|
const struct cmd_entry cmd_set_environment_entry = {
|
|
"set-environment", "setenv",
|
|
"grt:u", 1, 2,
|
|
"[-gru] " CMD_TARGET_SESSION_USAGE " name [value]",
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
cmd_set_environment_exec
|
|
};
|
|
|
|
enum cmd_retval
|
|
cmd_set_environment_exec(struct cmd *self, struct cmd_q *cmdq)
|
|
{
|
|
struct args *args = self->args;
|
|
struct session *s;
|
|
struct environ *env;
|
|
const char *name, *value;
|
|
|
|
name = args->argv[0];
|
|
if (*name == '\0') {
|
|
cmdq_error(cmdq, "empty variable name");
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
if (strchr(name, '=') != NULL) {
|
|
cmdq_error(cmdq, "variable name contains =");
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
|
|
if (args->argc < 2)
|
|
value = NULL;
|
|
else
|
|
value = args->argv[1];
|
|
|
|
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_has(self->args, 'u')) {
|
|
if (value != NULL) {
|
|
cmdq_error(cmdq, "can't specify a value with -u");
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
environ_unset(env, name);
|
|
} else if (args_has(self->args, 'r')) {
|
|
if (value != NULL) {
|
|
cmdq_error(cmdq, "can't specify a value with -r");
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
environ_set(env, name, NULL);
|
|
} else {
|
|
if (value == NULL) {
|
|
cmdq_error(cmdq, "no value specified");
|
|
return (CMD_RETURN_ERROR);
|
|
}
|
|
environ_set(env, name, value);
|
|
}
|
|
|
|
return (CMD_RETURN_NORMAL);
|
|
}
|