100 lines
4.3 KiB
Java
100 lines
4.3 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2019.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.fml.config;
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import com.electronwill.nightconfig.core.ConfigFormat;
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import com.electronwill.nightconfig.core.file.CommentedFileConfig;
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import com.electronwill.nightconfig.core.file.FileWatcher;
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import com.electronwill.nightconfig.core.io.WritingMode;
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import net.minecraftforge.fml.loading.FMLConfig;
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import net.minecraftforge.fml.loading.FMLPaths;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.function.Function;
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import static net.minecraftforge.fml.config.ConfigTracker.CONFIG;
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public class ConfigFileTypeHandler {
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private static final Logger LOGGER = LogManager.getLogger();
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static ConfigFileTypeHandler TOML = new ConfigFileTypeHandler();
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private static final Path defaultConfigPath = FMLPaths.GAMEDIR.get().resolve(FMLConfig.defaultConfigPath());
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public Function<ModConfig, CommentedFileConfig> reader(Path configBasePath) {
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return (c) -> {
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final Path configPath = configBasePath.resolve(c.getFileName());
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final CommentedFileConfig configData = CommentedFileConfig.builder(configPath).sync().
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preserveInsertionOrder().
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autosave().
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onFileNotFound((newfile, configFormat)-> setupConfigFile(c, newfile, configFormat)).
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writingMode(WritingMode.REPLACE).
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build();
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LOGGER.debug(CONFIG, "Built TOML config for {}", configPath.toString());
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configData.load();
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LOGGER.debug(CONFIG, "Loaded TOML config file {}", configPath.toString());
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try {
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FileWatcher.defaultInstance().addWatch(configPath, new ConfigWatcher(c, configData, Thread.currentThread().getContextClassLoader()));
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LOGGER.debug(CONFIG, "Watching TOML config file {} for changes", configPath.toString());
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} catch (IOException e) {
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throw new RuntimeException("Couldn't watch config file", e);
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}
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return configData;
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};
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}
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private boolean setupConfigFile(final ModConfig modConfig, final Path file, final ConfigFormat<?> conf) throws IOException {
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Path p = defaultConfigPath.resolve(modConfig.getFileName());
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if (Files.exists(p)) {
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LOGGER.info(CONFIG, "Loading default config file from path {}", p);
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Files.copy(p, file);
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} else {
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Files.createFile(file);
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conf.initEmptyFile(file);
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}
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return true;
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}
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private static class ConfigWatcher implements Runnable {
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private final ModConfig modConfig;
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private final CommentedFileConfig commentedFileConfig;
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private final ClassLoader realClassLoader;
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ConfigWatcher(final ModConfig modConfig, final CommentedFileConfig commentedFileConfig, final ClassLoader classLoader) {
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this.modConfig = modConfig;
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this.commentedFileConfig = commentedFileConfig;
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this.realClassLoader = classLoader;
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}
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@Override
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public void run() {
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// Force the regular classloader onto the special thread
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Thread.currentThread().setContextClassLoader(realClassLoader);
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if (!this.modConfig.getSpec().isCorrecting()) {
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this.commentedFileConfig.load();
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LOGGER.debug(CONFIG, "Config file {} changed, sending notifies", this.modConfig.getFileName());
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this.modConfig.fireEvent(new ModConfig.Reloading(this.modConfig));
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}
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}
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}
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}
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