awesome/options.c

132 lines
4.1 KiB
C

/*
* stack.h - client stack management header
*
* Copyright © 2020 Emmanuel Lepage-Vallee <elv1313@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "options.h"
#include "common/version.h"
#include <unistd.h>
#include <stdio.h>
#include <getopt.h>
/** Print help and exit(2) with given exit_code.
* \param exit_code The exit code.
*/
static void __attribute__ ((noreturn))
exit_help(int exit_code)
{
FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
fprintf(outfile,
"Usage: awesome [OPTION]\n\
-h, --help show help\n\
-v, --version show version\n\
-f, --force ignore modelines and apply the command line arguments\n\
-c, --config FILE configuration file to use\n\
--search DIR add a directory to the library search path\n\
-k, --check check configuration file syntax\n\
-a, --no-argb disable client transparency support\n\
-m, --screen on|off enable or disable automatic screen creation (default: on)\n\
-r, --replace replace an existing window manager\n");
exit(exit_code);
}
#define ARG 1
#define NO_ARG 0
char *
options_check_args(int argc, char **argv, int *init_flags, string_array_t *paths)
{
static struct option long_options[] =
{
{ "help", NO_ARG, NULL, 'h' },
{ "version", NO_ARG, NULL, 'v' },
{ "config", ARG , NULL, 'c' },
{ "force" , NO_ARG, NULL, 'f' },
{ "check", NO_ARG, NULL, 'k' },
{ "search", ARG , NULL, 's' },
{ "no-argb", NO_ARG, NULL, 'a' },
{ "replace", NO_ARG, NULL, 'r' },
{ "screen" , ARG , NULL, 'm' },
{ "reap", ARG , NULL, '\1' },
{ NULL, NO_ARG, NULL, 0 }
};
char *confpath = NULL;
int opt;
while((opt = getopt_long(argc, argv, "vhkc:arm:",
long_options, NULL)) != -1) {
switch(opt)
{
case 'v':
eprint_version();
break;
case 'h':
if (! ((*init_flags) & INIT_FLAG_ALLOW_FALLBACK))
exit_help(EXIT_SUCCESS);
break;
case 'f':
(*init_flags) |= INIT_FLAG_FORCE_CMD_ARGS;
break;
case 'k':
(*init_flags) |= INIT_FLAG_RUN_TEST;
break;
case 'c':
if (confpath != NULL)
fatal("--config may only be specified once");
confpath = a_strdup(optarg);
break;
case 'm':
/* Validation */
if ((!optarg) || !(A_STREQ(optarg, "off") || A_STREQ(optarg, "on")))
fatal("The possible values of -m/--screen are \"on\" or \"off\"");
globalconf.no_auto_screen = A_STREQ(optarg, "off");
(*init_flags) &= ~INIT_FLAG_AUTO_SCREEN;
break;
case 's':
string_array_append(paths, a_strdup(optarg));
break;
case 'a':
(*init_flags) &= ~INIT_FLAG_ARGB;
break;
case 'r':
(*init_flags) |= INIT_FLAG_REPLACE_WM;
break;
case '\1':
/* Silently ignore --reap and its argument */
break;
default:
if (! ((*init_flags) & INIT_FLAG_ALLOW_FALLBACK))
exit_help(EXIT_FAILURE);
break;
}}
return confpath;
}
#undef AR
#undef NO_ARG
#undef KEY_VALUE_BUF_MAX
#undef READ_BUF_MAX