add velocity service (#181)

launcher/src/main/java/space/vectrix/ignite/IgniteBootstrap.java

@@ -142,7 +142,7 @@ private void run(final String@NotNull [] args) {
     Logger.info("Preparing the game...");
 
     // Add the game.
-    final Path gameJar = Blackboard.raw(Blackboard.GAME_JAR);
+    final Path gameJar = gameProvider.gamePath();
     try {
       IgniteAgent.addJar(gameJar);
 

launcher/src/main/java/space/vectrix/ignite/game/VelocityGameLocator.java

@@ -0,0 +1,104 @@
+/*
+ * This file is part of Ignite, licensed under the MIT License (MIT).
+ *
+ * Copyright (c) vectrix.space <https://vectrix.space/>
+ * Copyright (c) contributors
+ *
+ * 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 space.vectrix.ignite.game;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.jar.JarFile;
+import java.util.stream.Stream;
+import org.jetbrains.annotations.NotNull;
+import space.vectrix.ignite.Blackboard;
+import space.vectrix.ignite.IgniteBootstrap;
+
+/**
+ * Provides a game locator for Velocity.
+ *
+ * @author vectrix
+ * @since 1.0.2
+ */
+public final class VelocityGameLocator implements GameLocatorService {
+  private VelocityGameProvider provider;
+
+  @Override
+  public @NotNull String id() {
+    return "velocity";
+  }
+
+  @Override
+  public @NotNull String name() {
+    return "Velocity";
+  }
+
+  @Override
+  public int priority() {
+    return 50;
+  }
+
+  @Override
+  public boolean shouldApply() {
+    final Path path = Blackboard.get(Blackboard.GAME_JAR).orElseGet(() -> Paths.get("./velocity.jar"));
+    try(final JarFile jarFile = new JarFile(path.toFile())) {
+      return jarFile.getJarEntry("default-velocity.toml") != null;
+    } catch(final IOException exception) {
+      return false;
+    }
+  }
+
+  @Override
+  public void apply(final @NotNull IgniteBootstrap bootstrap) throws Throwable {
+    Blackboard.compute(Blackboard.GAME_TARGET, () -> Blackboard.get(Blackboard.GAME_TARGET).orElse("com.velocitypowered.proxy.Velocity"));
+
+    // Create the game provider.
+    if(this.provider == null) {
+      this.provider = new VelocityGameProvider();
+    }
+
+    // Locate the game jar.
+    if(!Blackboard.get(Blackboard.GAME_JAR).isPresent()) {
+      Blackboard.put(Blackboard.GAME_JAR, this.provider.gamePath());
+    }
+  }
+
+  @Override
+  public @NotNull GameProvider locate() {
+    return this.provider;
+  }
+
+  /* package */ static final class VelocityGameProvider implements GameProvider {
+    /* package */ VelocityGameProvider() {
+    }
+
+    @Override
+    public @NotNull Stream<Path> gameLibraries() {
+      return Stream.empty();
+    }
+
+    @Override
+    public @NotNull Path gamePath() {
+      return Blackboard.get(Blackboard.GAME_JAR).orElseGet(() -> Paths.get("./velocity.jar"));
+    }
+  }
+}

launcher/src/main/java/space/vectrix/ignite/util/IgniteExclusions.java

@@ -54,6 +54,10 @@ public final class IgniteExclusions {
     "org.spongepowered.asm.",
     "com.llamalad7.mixinextras.",
 
+    // Logging
+    "org.slf4j.",
+    "org.apache.logging.log4j.",
+
     // Access Widener
     "net.fabricmc.accesswidener.",
   };

launcher/src/main/resources/META-INF/services/space.vectrix.ignite.game.GameLocatorService

@@ -1,4 +1,5 @@
 space.vectrix.ignite.game.SpigotGameLocator
 space.vectrix.ignite.game.PaperGameLocator
+space.vectrix.ignite.game.VelocityGameLocator
 space.vectrix.ignite.game.LegacyPaperGameLocator
 space.vectrix.ignite.game.DummyGameLocator

readme.md

@@ -161,6 +161,9 @@ The following targets could use the following flags:
     - The classpath to the paperclip entry point. (e.g `-Dignite.paper.target=io.papermc.paperclip.Paperclip`)
     - The minecraft server version paperclip will be patching. (e.g `-Dignite.paper.version=1.12.2`)
 
+- Velocity:
+  - Service name: `velocity` (e.g `-Dignite.locator=velocity`)
+
 ## Building
 __Note:__ If you do not have [Gradle] installed then use `./gradlew` for Unix systems or Git Bash and gradlew.bat for Windows systems in 
 place of any 'gradle' command.