Basic server working.

build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'com.jessebrault.ssg' version '0.4.0'
+    id 'distribution'
 }
 
 group = 'com.jessebrault'
@@ -10,7 +11,51 @@ repositories {
     mavenLocal()
 }
 
-dependencies {
-    implementation 'org.apache.groovy:groovy:4.0.21'
+configurations {
+    server
 }
 
+sourceSets {
+    server
+}
+
+dependencies {
+    implementation 'org.apache.groovy:groovy:4.0.21'
+
+    serverImplementation 'org.eclipse.jetty:jetty-server:12.0.9'
+    serverImplementation 'info.picocli:picocli:4.7.6'
+    serverRuntimeOnly 'org.apache.logging.log4j:log4j-slf4j2-impl:2.23.1'
+}
+
+tasks.register('serverJar', Jar) {
+    group = 'build'
+    archiveBaseName = 'jb-ssg-site-server'
+    from sourceSets.server.java.classesDirectory
+    from sourceSets.server.resources.files
+}
+
+tasks.register('serverStartScripts', CreateStartScripts) {
+    applicationName = 'JbServer'
+    mainClass = 'com.jessebrault.site.JbServer'
+    classpath = files(configurations.serverRuntimeClasspath.files.collect {
+        java.nio.file.Path.of('lib', it.name).toFile()
+    })
+    classpath += files(tasks.named('serverJar', Jar).get().outputs.files.collect { it.name })
+    outputDir = file('build/tmp/serverStartScripts')
+}
+
+distributions {
+    server {
+        contents {
+            from(serverStartScripts) {
+                into 'bin'
+            }
+            from(serverJar) {
+                into 'lib'
+            }
+            from(configurations.serverRuntimeClasspath.files) {
+                into 'lib'
+            }
+        }
+    }
+}

src/server/java/com/jessebrault/site/JbHandler.java

@@ -0,0 +1,64 @@
+package com.jessebrault.site;
+
+import org.eclipse.jetty.server.Handler;
+import org.eclipse.jetty.server.Request;
+import org.eclipse.jetty.server.Response;
+import org.eclipse.jetty.util.Callback;
+
+import java.nio.ByteBuffer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.regex.Pattern;
+
+public final class JbHandler extends Handler.Abstract {
+
+    private static final Pattern extensionPattern = Pattern.compile("\\.(?<extension>.+)$");
+
+    private static String getExtension(String path) {
+        final var m = extensionPattern.matcher(path);
+        if (m.matches()) {
+            return m.group("extension");
+        } else {
+            return null;
+        }
+    }
+
+    private final Path base;
+
+    public JbHandler(Path base) {
+        this.base = base;
+    }
+
+    @Override
+    public boolean handle(Request request, Response response, Callback callback) throws Exception {
+        final String path = request.getHttpURI().getDecodedPath();
+        String relative;
+        if (path.length() > 1) {
+            final String withoutStartSlash = path.substring(1);
+            if (withoutStartSlash.endsWith("/")) {
+                relative = withoutStartSlash + "index.html";
+            } else {
+                relative = withoutStartSlash;
+            }
+        } else {
+            relative = "index.html";
+        }
+
+        final String extension = getExtension(relative);
+        if (extension == null) {
+            relative = relative + ".html";
+        }
+
+        final Path resolved = base.resolve(relative);
+        if (!Files.exists(resolved)) {
+            return false;
+        } else {
+            try (final var inputStream = Files.newInputStream(resolved)) {
+                final ByteBuffer byteBuffer = ByteBuffer.wrap(inputStream.readAllBytes());
+                response.write(true, byteBuffer, callback);
+            }
+            return true;
+        }
+    }
+
+}

src/server/java/com/jessebrault/site/JbServer.java

@@ -0,0 +1,60 @@
+package com.jessebrault.site;
+
+import org.eclipse.jetty.server.Handler;
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.server.ServerConnector;
+import org.eclipse.jetty.server.handler.DefaultHandler;
+import org.eclipse.jetty.util.thread.QueuedThreadPool;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import picocli.CommandLine;
+
+import java.nio.file.Path;
+
+@CommandLine.Command(
+        name = "jbServer",
+        description = "The main server for jessebrault.com.",
+        mixinStandardHelpOptions = true
+)
+public class JbServer implements Runnable {
+
+    public static void main(String[] args) {
+        new CommandLine(new JbServer()).execute(args);
+    }
+
+    private static final Logger logger = LoggerFactory.getLogger(JbServer.class);
+
+    @CommandLine.Option(names = "--watch")
+    private boolean watch;
+
+    @CommandLine.Option(names = { "-p", "--port" }, defaultValue = "8080")
+    private int port;
+
+    @CommandLine.Option(names = { "-b", "--base" }, defaultValue = "dist/default")
+    private Path base;
+
+    @Override
+    public void run() {
+        final var queuedThreadPool = new QueuedThreadPool();
+        queuedThreadPool.setName("jbServer");
+
+        final var server = new Server(queuedThreadPool);
+
+        final var connector = new ServerConnector(server);
+        connector.setPort(this.port);
+        server.addConnector(connector);
+
+        final Handler.Sequence sequence = new Handler.Sequence();
+        sequence.addHandler(new JbHandler(this.base));
+        sequence.addHandler(new DefaultHandler());
+        server.setHandler(sequence);
+
+        try {
+            server.start();
+            logger.info("Server started on port {}.", this.port);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}

src/server/resources/log4j2.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Configuration xmlns="http://logging.apache.org/log4j/2.0/config">
+    <Appenders>
+        <Console name="root">
+            <PatternLayout>
+                <LevelPatternSelector defaultPattern="[%t] %-5level %logger{1.} %msg%n">
+                    <PatternMatch key="DEBUG" pattern="[%t] %-5level %logger{1.}.%M() %msg%n" />
+                </LevelPatternSelector>
+            </PatternLayout>
+        </Console>
+    </Appenders>
+    <Loggers>
+        <Root level="INFO">
+            <AppenderRef ref="root" />
+        </Root>
+    </Loggers>
+</Configuration>

start

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+gradle -q installServerDist \
+  && bin/ssg build -g \
+  && build/install/jb-ssg-site-server/bin/JbServer "$@"