Do not download client/server when side is set

Author: PhoenixVX

src/main/java/org/mcphackers/mcp/Options.java

@@ -222,4 +222,8 @@ public Map<String, Object> getFernflowerOptions() {
 		}
 		return new HashMap<>(ffOptions);
 	}
+
+	public Side getSide() {
+		return this.side;
+	}
 }

src/main/java/org/mcphackers/mcp/tasks/Task.java

@@ -115,5 +115,13 @@ public enum Side {
 		public String getName() {
 			return MCP.TRANSLATOR.translateKey("side." + name);
 		}
+
+		public boolean includesClient() {
+			return this.equals(ANY) || this.equals(MERGED) || this.equals(CLIENT);
+		}
+
+		public boolean includesServer() {
+			return this.equals(ANY) || this.equals(MERGED) || this.equals(SERVER);
+		}
 	}
 }

src/main/java/org/mcphackers/mcp/tools/versions/DownloadData.java

@@ -30,14 +30,16 @@ public class DownloadData {
 	protected AssetIndex assets;
 
 	public DownloadData(MCP mcp, Version version) {
-		this(MCPPaths.get(mcp, MCPPaths.LIB), MCPPaths.get(mcp, MCPPaths.JARS), MCPPaths.get(mcp, MCPPaths.JAR_ORIGINAL, Side.CLIENT), MCPPaths.get(mcp, MCPPaths.JAR_ORIGINAL, Side.SERVER), version);
+		this(mcp, MCPPaths.get(mcp, MCPPaths.LIB), MCPPaths.get(mcp, MCPPaths.JARS), MCPPaths.get(mcp, MCPPaths.JAR_ORIGINAL, Side.CLIENT), MCPPaths.get(mcp, MCPPaths.JAR_ORIGINAL, Side.SERVER), version);
 	}
 
-	public DownloadData(Path libraries, Path gameDir, Path client, Path server, Version version) {
+	public DownloadData(MCP mcp, Path libraries, Path gameDir, Path client, Path server, Version version) {
 		this.gameDir = gameDir;
-		queueDownload(version.downloads.artifacts.get("client"), client);
+		if (mcp.getOptions().getSide().includesClient()) {
+			queueDownload(version.downloads.artifacts.get("client"), client);
+		}
 		Artifact serverArtifact = version.downloads.artifacts.get("server");
-		if(serverArtifact != null) {
+		if(mcp.getOptions().getSide().includesServer() && serverArtifact != null) {
 			Path serverOut = server;
 			if(serverArtifact.url.endsWith(".zip")) {
 				serverOut = server.getParent().resolve("minecraft_server.zip");