Allow specifying additional decompilers for generating sources (#213)

* decompilers

* cleanup

* oops

* weird import

* public

* public 2 electric boogalo

* move over fabric specific

* ok

* move to api package

2 files changed, 80 insertions, 0 deletions

diff --git a/src/main/java/net/fabricmc/loom/api/decompilers/DecompilationMetadata.java b/src/main/java/net/fabricmc/loom/api/decompilers/DecompilationMetadata.java
new file mode 100644
index 00000000..35dcbfa6
--- /dev/null
+++ b/src/main/java/net/fabricmc/loom/api/decompilers/DecompilationMetadata.java
@@ -0,0 +1,40 @@
+/*
+ * This file is part of fabric-loom, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2016, 2017, 2018 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.api.decompilers;
+
+import java.nio.file.Path;
+import java.util.Collection;
+
+public class DecompilationMetadata {
+	public final int numberOfThreads;
+	public final Path javaDocs;
+	public final Collection<Path> libraries;
+
+	public DecompilationMetadata(int numberOfThreads, Path javaDocs, Collection<Path> libraries) {
+		this.numberOfThreads = numberOfThreads;
+		this.javaDocs = javaDocs;
+		this.libraries = libraries;
+	}
+}
diff --git a/src/main/java/net/fabricmc/loom/api/decompilers/LoomDecompiler.java b/src/main/java/net/fabricmc/loom/api/decompilers/LoomDecompiler.java
new file mode 100644
index 00000000..c19a4a8c
--- /dev/null
+++ b/src/main/java/net/fabricmc/loom/api/decompilers/LoomDecompiler.java
@@ -0,0 +1,40 @@
+/*
+ * This file is part of fabric-loom, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2016, 2017, 2018 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.api.decompilers;
+
+import java.nio.file.Path;
+
+public interface LoomDecompiler {
+	String name();
+
+	/**
+	 * @param sourcesDestination Decompiled sources jar
+	 * @param linemapDestination A byproduct of decompilation that lines up the compiled jar's line numbers with the decompiled
+	 *                           sources jar for debugging.
+	 *                           A decompiler may not produce a linemap at all.
+	 * @param metaData Additional information that may or may not be needed while decompiling
+	 */
+	void decompile(Path compiledJar, Path sourcesDestination, Path linemapDestination, DecompilationMetadata metaData);
+}