Remove the Cache class in the LoomRepositoryPlugin, use LoomFiles instead. (#464)

* refactor LoomFiles to support Settings

* remove Cache class, use LoomFiles class

* fix checkstyle

src/main/java/net/fabricmc/loom/extension/LoomFilesBaseImpl.java

@@ -0,0 +1,91 @@
+/*
+ * This file is part of fabric-loom, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2021 FabricMC
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package net.fabricmc.loom.extension;
+
+import java.io.File;
+
+public abstract class LoomFilesBaseImpl implements LoomFiles {
+	protected abstract File getGradleUserHomeDir();
+	protected abstract File getRootDir();
+	protected abstract File getProjectDir();
+	protected abstract File getBuildDir();
+
+	public LoomFilesBaseImpl() { }
+
+	private static File createFile(File parent, String child) {
+		File file = new File(parent, child);
+
+		if (!file.exists()) {
+			file.mkdirs();
+		}
+
+		return file;
+	}
+
+	@Override
+	public File getUserCache() {
+		return createFile(getGradleUserHomeDir(), "caches" + File.separator + "fabric-loom");
+	}
+
+	@Override
+	public File getRootProjectPersistentCache() {
+		return createFile(getRootDir(), ".gradle" + File.separator + "loom-cache");
+	}
+
+	@Override
+	public File getProjectPersistentCache() {
+		return createFile(getProjectDir(), ".gradle" + File.separator + "loom-cache");
+	}
+
+	@Override
+	public File getProjectBuildCache() {
+		return createFile(getBuildDir(), "loom-cache");
+	}
+
+	@Override
+	public File getRemappedModCache() {
+		return createFile(getRootProjectPersistentCache(), "remapped_mods");
+	}
+
+	@Override
+	public File getNativesJarStore() {
+		return createFile(getUserCache(), "natives/jars");
+	}
+
+	@Override
+	public File getDefaultLog4jConfigFile() {
+		return new File(getProjectPersistentCache(), "log4j.xml");
+	}
+
+	@Override
+	public File getDevLauncherConfig() {
+		return new File(getProjectPersistentCache(), "launch.cfg");
+	}
+
+	@Override
+	public File getUnpickLoggingConfigFile() {
+		return new File(getProjectPersistentCache(), "unpick-logging.properties");
+	}
+}