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/* $OpenBSD: cmd-set-option.c,v 1.137 2020/06/16 08:18:34 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 option.
*/
static enum cmd_retval cmd_set_option_exec(struct cmd *, struct cmdq_item *);
const struct cmd_entry cmd_set_option_entry = {
.name = "set-option",
.alias = "set",
.args = { "aFgopqst:uw", 1, 2 },
.usage = "[-aFgopqsuw] " CMD_TARGET_PANE_USAGE " option [value]",
.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_set_option_exec
};
const struct cmd_entry cmd_set_window_option_entry = {
.name = "set-window-option",
.alias = "setw",
.args = { "aFgoqt:u", 1, 2 },
.usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_set_option_exec
};
const struct cmd_entry cmd_set_hook_entry = {
.name = "set-hook",
.alias = NULL,
.args = { "agpRt:uw", 1, 2 },
.usage = "[-agpRuw] " CMD_TARGET_PANE_USAGE " hook [command]",
.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
.flags = CMD_AFTERHOOK,
.exec = cmd_set_option_exec
};
static enum cmd_retval
cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = cmd_get_args(self);
int append = args_has(args, 'a');
struct cmd_find_state *target = cmdq_get_target(item);
struct options *oo;
struct options_entry *parent, *o;
char *name, *argument, *value = NULL, *cause;
int window, idx, already, error, ambiguous;
int scope;
window = (cmd_get_entry(self) == &cmd_set_window_option_entry);
/* Expand argument. */
argument = format_single_from_target(item, args->argv[0]);
/* If set-hook -R, fire the hook straight away. */
if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'R')) {
notify_hook(item, argument);
free(argument);
return (CMD_RETURN_NORMAL);
}
/* Parse option name and index. */
name = options_match(argument, &idx, &ambiguous);
if (name == NULL) {
if (args_has(args, 'q'))
goto out;
if (ambiguous)
cmdq_error(item, "ambiguous option: %s", argument);
else
cmdq_error(item, "invalid option: %s", argument);
goto fail;
}
if (args->argc < 2)
value = NULL;
else if (args_has(args, 'F'))
value = format_single_from_target(item, args->argv[1]);
else
value = xstrdup(args->argv[1]);
/* Get the scope and table for the option .*/
scope = options_scope_from_name(args, window, name, target, &oo,
&cause);
if (scope == OPTIONS_TABLE_NONE) {
if (args_has(args, 'q'))
goto out;
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
o = options_get_only(oo, name);
parent = options_get(oo, name);
/* Check that array options and indexes match up. */
if (idx != -1 && (*name == '@' || !options_is_array(parent))) {
cmdq_error(item, "not an array: %s", argument);
goto fail;
}
/* With -o, check this option is not already set. */
if (!args_has(args, 'u') && args_has(args, 'o')) {
if (idx == -1)
already = (o != NULL);
else {
if (o == NULL)
already = 0;
else
already = (options_array_get(o, idx) != NULL);
}
if (already) {
if (args_has(args, 'q'))
goto out;
cmdq_error(item, "already set: %s", argument);
goto fail;
}
}
/* Change the option. */
if (args_has(args, 'u')) {
if (o == NULL)
goto out;
if (options_remove_or_default(o, idx, &cause) != 0) {
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
} else if (*name == '@') {
if (value == NULL) {
cmdq_error(item, "empty value");
goto fail;
}
options_set_string(oo, name, append, "%s", value);
} else if (idx == -1 && !options_is_array(parent)) {
error = options_from_string(oo, options_table_entry(parent),
options_table_entry(parent)->name, value,
args_has(args, 'a'), &cause);
if (error != 0) {
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
} else {
if (value == NULL) {
cmdq_error(item, "empty value");
goto fail;
}
if (o == NULL)
o = options_empty(oo, options_table_entry(parent));
if (idx == -1) {
if (!append)
options_array_clear(o);
if (options_array_assign(o, value, &cause) != 0) {
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
} else if (options_array_set(o, idx, value, append,
&cause) != 0) {
cmdq_error(item, "%s", cause);
free(cause);
goto fail;
}
}
options_push_changes(name);
out:
free(argument);
free(value);
free(name);
return (CMD_RETURN_NORMAL);
fail:
free(argument);
free(value);
free(name);
return (CMD_RETURN_ERROR);
}
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