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/* ========================================================================= */
/**
* @file wlmtool.c
*
* Command-line tool for Wayland Maker.
*
* @copyright
* Copyright (c) 2026 Google LLC and Philipp Kaeser
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <libbase/libbase.h>
#include <libbase/plist.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gen_menu.h"
/* == Declarations ========================================================= */
static bool print_version(int argc, const char **argv);
static bool print_help(int argc, const char **argv);
static bool generate_menu(int argc, const char **argv);
#if !defined(WLMAKER_VERSION_MAJOR) || !defined(WLMAKER_VERSION_MINOR) || !defined(WLMAKER_VERSION_FULL)
#eror "WLMAKER_VERSION_... not defined!"
#else
static const char *wlmaker_version_major = WLMAKER_VERSION_MAJOR;
static const char *wlmaker_version_minor = WLMAKER_VERSION_MINOR;
static const char *wlmaker_version_full = WLMAKER_VERSION_FULL;
#endif
/** Command descriptor. */
struct command_desc {
/** Command that can be invoked. */
const char *command_ptr;
/** Description of the command. */
const char *description_ptr;
/** The operation executed by the command. */
bool (*op)(int argc, const char **argv);
};
/** Locale, when specified as `--locale` argument to the commandline. */
static char *wlmtool_locale_ptr = NULL;
/* == Data ================================================================= */
/** Definition of commandline arguments. */
static const bs_arg_t wlmtool_args[] = {
BS_ARG_STRING(
"locale",
"Optional: Override the locale for generating the menu. Uses the "
"environment's setting for LC_MESSAGES, if not set.",
NULL,
&wlmtool_locale_ptr),
BS_ARG_SENTINEL()
};
/** List of available commands. */
static const struct command_desc commands[] = {
{
.command_ptr = "genmenu",
.description_ptr =
"Generates a root menu for Wayland Maker, in .plist text format.",
.op = generate_menu
},
{
.command_ptr = "--help",
.description_ptr = "Prints usage information.",
.op = print_help
},
{
.command_ptr = "--version",
.description_ptr = "Prints version information.",
.op = print_version
},
{} // Sentinel.
};
/* == Local (static) methods =============================================== */
/* ------------------------------------------------------------------------- */
/** Prints version information. */
bool print_version(__UNUSED__ int argc, __UNUSED__ const char **argv)
{
fprintf(stdout, "Wayland Maker wlmtool version %s.%s (%s)\n",
wlmaker_version_major,
wlmaker_version_minor,
wlmaker_version_full);
return true;
}
/* ------------------------------------------------------------------------- */
/** Prints help. */
bool print_help(__UNUSED__ int argc, __UNUSED__ const char **argv)
{
fprintf(stdout, "Wayland Maker wlmtool version %s.%s (%s)\n",
wlmaker_version_major,
wlmaker_version_minor,
wlmaker_version_full);
fprintf(stderr, "\nAvailable commands and options:\n");
for (const struct command_desc *d = commands; d->command_ptr; ++d) {
fprintf(stdout, "%s: %s\n", d->command_ptr, d->description_ptr);
}
bs_arg_print_usage(stdout, wlmtool_args);
return true;
}
/* ------------------------------------------------------------------------- */
/** Generates the plist menu. */
bool generate_menu(int argc, const char **argv)
{
const char *path_ptr = NULL;
if (1 > argc) {
fprintf(stderr, "Usage: wlmtool genmenu [PATH]\n");
return false;
} else if (2 <= argc) {
path_ptr = argv[1];
}
bspl_array_t *menu_array_ptr = wlmaker_menu_generate(
wlmtool_locale_ptr, path_ptr);
if (NULL == menu_array_ptr) return false;
bs_dynbuf_t buf = {};
bool rv = bs_dynbuf_init(&buf, 1024, SIZE_MAX);
if (rv) {
rv = bspl_object_write(bspl_object_from_array(menu_array_ptr), &buf);
if (rv) fprintf(stdout, "%.*s", (int)buf.length, (char*)buf.data_ptr);
}
bspl_array_unref(menu_array_ptr);
bs_dynbuf_fini(&buf);
return rv;
}
/* == Main program ========================================================= */
/** The main program. */
int main(int argc, const char **argv)
{
if (!bs_arg_parse(wlmtool_args, BS_ARG_MODE_EXTRA_ARGS, &argc, argv)) {
fprintf(stderr, "Failed to parse commandline arguments.\n");
bs_arg_print_usage(stderr, wlmtool_args);
return EXIT_FAILURE;
}
if (1 < argc) {
for (const struct command_desc *d = commands; d->command_ptr; ++d) {
if (0 == strcmp(argv[1], d->command_ptr)) {
return d->op(argc - 1, argv + 1) ? EXIT_SUCCESS : EXIT_FAILURE;
}
}
fprintf(stderr, "Unknown command: %s.\n", argv[1]);
} else {
fprintf(stderr, "Missing command.\n");
}
fprintf(stderr, "\nAvailable commands:\n");
for (const struct command_desc *d = commands; d->command_ptr; ++d) {
fprintf(stderr, "%s: %s\n", d->command_ptr, d->description_ptr);
}
bs_arg_print_usage(stderr, wlmtool_args);
return EXIT_FAILURE;
}
/* == End of wlmtool.c ===================================================== */
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