Added basic visual code support, run with vscode to generate workspace

src/main/java/net/fabricmc/loom/LoomGradlePlugin.java

@@ -40,5 +40,7 @@ public class LoomGradlePlugin extends AbstractPlugin {
 
 		makeTask("extractNatives", ExtractNativesTask.class).dependsOn("download");
 		makeTask("genIdeaRuns", GenIdeaProjectTask.class).dependsOn("cleanIdea").dependsOn("idea").dependsOn("extractNatives");
+
+		makeTask("vscode", GenVSCodeProjectTask.class).dependsOn("extractNatives");
 	}
 }

src/main/java/net/fabricmc/loom/task/GenVSCodeProjectTask.java

@@ -0,0 +1,83 @@
+/*
+ * This file is part of fabric-loom, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) 2016 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.task;
+
+import com.google.gson.*;
+import net.fabricmc.loom.LoomGradleExtension;
+import net.fabricmc.loom.util.Constants;
+import net.fabricmc.loom.util.Version;
+import org.apache.commons.io.FileUtils;
+import org.gradle.api.DefaultTask;
+import org.gradle.api.tasks.TaskAction;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Install https://marketplace.visualstudio.com/items?itemName=georgewfraser.vscode-javac into vscode
+ */
+public class GenVSCodeProjectTask extends DefaultTask {
+
+    @TaskAction
+    public void genVsCodeProject() throws IOException {
+        LoomGradleExtension extension = this.getProject().getExtensions().getByType(LoomGradleExtension.class);
+        File classPathFile = new File("vscodeClasspath.txt");
+        File configFile = new File("javaconfig.json");
+
+        Gson gson = new Gson();
+        Version version = gson.fromJson(new FileReader(Constants.MINECRAFT_JSON.get(extension)), Version.class);
+
+        List<String> libs = new ArrayList<>();
+        for (Version.Library library : version.libraries) {
+            if (library.allowed() && library.getFile(extension) != null && library.getFile(extension).exists()) {
+                libs.add(library.getFile(extension).getAbsolutePath());
+            }
+        }
+        libs.add(Constants.MINECRAFT_MAPPED_JAR.get(extension).getAbsolutePath());
+        for (File file : getProject().getConfigurations().getByName("compile").getFiles()) {
+            libs.add(file.getAbsolutePath());
+        }
+        FileUtils.writeLines(classPathFile, libs);
+
+        JsonObject jsonObject = new JsonObject();
+        JsonArray jsonArray = new JsonArray();
+        jsonArray.add("src/main/java");
+        jsonArray.add("src/main/resorces");
+        jsonArray.add("src/test/java");
+        jsonArray.add("src/test/resorces");
+        jsonObject.add("sourcePath", jsonArray);
+        JsonElement element = new JsonPrimitive(classPathFile.getName());
+        jsonObject.add("classPathFile", element);
+        element = new JsonPrimitive("vscode");
+        jsonObject.add("outputDirectory", element);
+
+        FileUtils.write(configFile, gson.toJson(jsonObject), Charset.defaultCharset());
+    }
+
+}