155 lines
4.1 KiB
C++
155 lines
4.1 KiB
C++
#include <cstdlib>
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#include <libreborn/libreborn.h>
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#include <sys/stat.h>
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#include "bootstrap.h"
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#include "options/parser.h"
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#include "crash-report.h"
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#include "util.h"
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#ifndef MCPI_SERVER_MODE
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#include "client/configuration.h"
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#endif
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// Bind Options To Environmental Variable
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static void bind_to_env(const char *env, const bool value) {
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const bool force = env[0] == '_';
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if (force || value) {
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set_and_print_env(env, value ? "1" : nullptr);
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}
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}
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static void setup_environment(const options_t &options) {
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// Passthrough Options To Game
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#ifndef MCPI_SERVER_MODE
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bind_to_env("_MCPI_BENCHMARK", options.benchmark);
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#else
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bind_to_env("_MCPI_ONLY_GENERATE", options.only_generate);
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#endif
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// GTK Dark Mode
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#ifndef MCPI_HEADLESS_MODE
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set_and_print_env("GTK_THEME", "Adwaita:dark");
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#endif
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// Configure PATH
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{
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// Get Binary Directory
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char *binary_directory = get_binary_directory();
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std::string new_path = std::string(binary_directory) + "/bin";
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free(binary_directory);
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// Add Existing PATH
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{
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char *value = getenv("PATH");
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if (value != nullptr && strlen(value) > 0) {
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new_path += std::string(":") + value;
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}
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}
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// Set And Free
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set_and_print_env("PATH", new_path.c_str());
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}
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}
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// Non-Launch Commands
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static void handle_non_launch_commands(const options_t &options) {
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if (options.copy_sdk) {
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char *binary_directory = get_binary_directory();
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copy_sdk(binary_directory, false);
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free(binary_directory);
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fflush(stdout);
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exit(EXIT_SUCCESS);
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}
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}
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// Exit Handler
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static void exit_handler(__attribute__((unused)) int signal_id) {
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// Pass Signal To Child
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murder_children();
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while (wait(nullptr) > 0) {}
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_exit(EXIT_SUCCESS);
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}
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// Start The Game
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static void start_game(const options_t &options) {
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// Disable stdout Buffering
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setvbuf(stdout, nullptr, _IONBF, 0);
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// Environemntal Variable Options
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setup_environment(options);
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// Setup Crash Reporting
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if (!options.disable_crash_report) {
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setup_log_file();
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setup_crash_report();
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}
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// Install Signal Handlers
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struct sigaction act_sigint = {};
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act_sigint.sa_flags = SA_RESTART;
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act_sigint.sa_handler = &exit_handler;
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sigaction(SIGINT, &act_sigint, nullptr);
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struct sigaction act_sigterm = {};
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act_sigterm.sa_flags = SA_RESTART;
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act_sigterm.sa_handler = &exit_handler;
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sigaction(SIGTERM, &act_sigterm, nullptr);
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// Setup Home
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#ifndef MCPI_SERVER_MODE
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// Ensure $HOME
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const char *home = getenv("HOME");
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if (home == nullptr) {
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ERR("$HOME Isn't Set");
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}
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// Create If Needed
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{
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std::string minecraft_folder = std::string(home) + HOME_SUBDIRECTORY_FOR_GAME_DATA;
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struct stat tmp_stat = {};
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bool exists = stat(minecraft_folder.c_str(), &tmp_stat) != 0 ? false : S_ISDIR(tmp_stat.st_mode);
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if (!exists) {
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// Doesn't Exist
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if (mkdir(minecraft_folder.c_str(), S_IRUSR | S_IWUSR | S_IXUSR) != 0) {
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ERR("Unable To Create Data Directory: %s", strerror(errno));
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}
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}
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}
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#else
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// Set Home To Current Directory, So World Data Is Stored There
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char *launch_directory = getcwd(NULL, 0);
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set_and_print_env("HOME", launch_directory);
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free(launch_directory);
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#endif
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// Configure Client Options
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#ifndef MCPI_SERVER_MODE
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configure_client(options);
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#endif
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// Bootstrap
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bootstrap();
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}
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// Main
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int main(int argc, char *argv[]) {
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// Parse Options
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options_t options = parse_options(argc, argv);
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// Set Debug Tag
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reborn_debug_tag = "(Launcher) ";
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// Debug Logging
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unsetenv(MCPI_LOG_ENV);
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bind_to_env(MCPI_DEBUG_ENV, options.debug);
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// Handle Non-Launch Commands (Copy SDK, Print Feature Flags, Etc)
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handle_non_launch_commands(options);
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#ifndef MCPI_SERVER_MODE
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handle_non_launch_client_only_commands(options);
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#endif
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// Check Environment
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#ifndef MCPI_SERVER_MODE
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// Code After This Can Safely Open A Window
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check_environment_client();
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#endif
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// Start The Game
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start_game(options);
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} |