[build] added ant website.open

this serves the site locally and opens your browser

buildScripts/info.ant.xml

@@ -258,6 +258,11 @@ build/website.
 'pack' bzips this up, ready to ship to the server.
 'publish' sends this to the server and runs a script to deploy.
 
+  > ant website.open
+  
+  First builds the website, then hosts it locally and opens it in your browser so
+  you can see the website in its full, template-applied form.
+
   > ant latest-changes.build
 
 Makes a changelog variant that lists only the newest changes; it is included

buildScripts/ivy.xml

@@ -58,6 +58,7 @@
 		<dependency org="projectlombok.org" name="markdownj" rev="1.02b4" conf="buildtools->build" />
 		<dependency org="de.java2html" name="java2html" rev="5.0" conf="buildtools->default" />
 		<dependency org="org.freemarker" name="freemarker" rev="2.3.28" conf="buildtools->default" />
+		<dependency org="com.sparkjava" name="spark-core" rev="2.9.2" conf="buildtools->default" />
 		
 		<dependency org="org.eclipse.jgit" name="org.eclipse.jgit.ant" rev="5.2.0.201812061821-r" conf="supporters->default" />
 		<dependency org="org.eclipse.jgit" name="org.eclipse.jgit" rev="5.2.0.201812061821-r" conf="supporters->default" />

buildScripts/website.ant.xml

@@ -150,6 +150,19 @@ such as applying the templates to produce the website, converting the changelog
 		<website.make version="${lombok.version.live}" fullversion="${lombok.fullversion.live}" cmd="all" />
 	</target>
 	
+	<target name="website.open" depends="website.build, compile.support" description="Builds the website, then serves it locally, opening a browser.">
+		<local name="dir.build.website" />
+		<property name="dir.build.website" location="build/website" />
+		<java classname="lombok.website.RunSite" failonerror="true">
+			<classpath>
+				<path refid="cp.buildtools" />
+				<pathelement location="build/support" />
+			</classpath>
+			<arg value="${dir.build.website}" />
+			<arg value="open" />
+		</java>
+	</target>
+	
 	<target name="website.print-all-versions" depends="compile.support">
 		<java classname="lombok.website.WebsiteMaker" failonerror="true">
 			<classpath>

src/support/lombok/website/RunSite.java

@@ -0,0 +1,107 @@
+package lombok.website;
+
+import static spark.Spark.*;
+
+import java.awt.Desktop;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import spark.Request;
+import spark.Response;
+import spark.Route;
+import spark.resource.InputStreamResource;
+
+public class RunSite {
+	private static final int DEFAULT_PORT = 4569;
+	private final Path base;
+	
+	public RunSite(Path base) {
+		this.base = base;
+	}
+	
+	public static void main(String[] args) throws Exception {
+		boolean open = args.length > 1 && args[1].equals("open");
+		new RunSite(Paths.get(args[0])).go(open);
+	}
+	
+	private void go(boolean open) throws Exception {
+		port(DEFAULT_PORT);
+		get("/", serve("main.html"));
+		get("/setup/overview", serve("setup/main.html"));
+		get("/setup", serve("setup/main.html"));
+		get("/features", serve("features/index.html"));
+		get("/features/all", serve("features/index.html"));
+		get("/features/experimental/all", serve("features/experimental/index.html"));
+		get("/features/experimental", serve("features/experimental/index.html"));
+		
+		serveDir("/", base);
+		
+		System.out.println("Serving page from " + base + " -- hit enter to stop");
+		if (open) Opener.open("http://localhost:" + DEFAULT_PORT + "/");
+		System.in.read();
+		System.exit(0);
+	}
+	
+	private void serveDir(String sub, Path dir) throws IOException {
+		DirectoryStream<Path> ds = Files.newDirectoryStream(dir);
+		try {
+			for (Path c : ds) {
+				String n = c.getFileName().toString();
+				if (n.equals(".") || n.equals("..")) continue;
+				if (Files.isDirectory(c)) {
+					serveDir(sub + n + "/", c);
+					continue;
+				}
+				String rel = base.relativize(c).toString();
+				get(sub + n, serve(rel));
+				if (n.endsWith(".html")) get(sub + n.substring(0, n.length() - 5), serve(rel));
+			}
+		} finally {
+			ds.close();
+		}
+	}
+	
+	private static class Opener {
+		public static void open(String url) throws Exception {
+			Desktop.getDesktop().browse(new URI(url));
+		}
+	}
+	
+	private Route serve(final String path) {
+		final Path tgt = base.resolve(path);
+		
+		return new Route() {
+			@Override public Object handle(Request req, Response res) throws Exception {
+				res.type(mapMime(path));
+				return Files.readAllBytes(tgt);
+			}
+		};
+	}
+	
+	private String mapMime(String path) {
+		if (path.endsWith(".css")) return "text/css; charset=UTF-8";
+		if (path.endsWith(".js")) return "text/javascript; charset=UTF-8";
+		if (path.endsWith(".png")) return "image/png";
+		if (path.endsWith(".gif")) return "image/gif";
+		if (path.endsWith(".jpg")) return "image/jpeg";
+		if (path.endsWith(".mp4")) return "video/mp4";
+		if (path.endsWith(".m4v")) return "video/mp4";
+		if (path.endsWith(".ogv")) return "video/ogg";
+		if (path.endsWith(".webm")) return "video/webm";
+		if (path.endsWith(".ico")) return "image/x-icon";
+		if (path.endsWith(".pdf")) return "application/pdf";
+		if (path.endsWith(".json")) return "application/json";
+		if (path.endsWith(".xml")) return "text/xml";
+		if (path.endsWith(".woff")) return "font/woff";
+		if (path.endsWith(".woff2")) return "font/woff2";
+		if (path.endsWith(".html")) return "text/html; charset=UTF-8";
+		return "text/plain; charset=UTF-8";
+	}
+}