Remove frog from the repository.

frog/server/frog_server.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-#library('frog_server');
-
-#import('dart:io');
-#import('../../lib/json/json.dart');
-#import('../lang.dart');
-#import('../file_system_vm.dart');
-#import('../../lib/utf/utf.dart');
-
-/// The server socket used to listen for incoming connections.
-ServerSocket serverSocket;
-
-initializeCompiler(String homedir) {
-  final filesystem = new VMFileSystem();
-  parseOptions(homedir, [null, null], filesystem);
-  initializeWorld(filesystem);
-}
-
-/// Compiles the Dart script at the specified location and saves the file.
-/// Request should look like:
-///     {
-///       "command": "compile",
-///       "id": "anyStringOrNumber",
-///       "input": "/Path/To/main_script.dart",
-///       "output": "/Path/To/main_script.dart.js",
-///     }
-compileCommand(Map request, OutputStream output) {
-  var id = request['id'];
-  world.reset();
-  options.dartScript = request['input'];
-  options.outfile = request['output'];
-  if (options.outfile == null) {
-    options.checkOnly = true;
-  }
-  print('starting compile with id $id, ' +
-      '${options.dartScript} -> ${options.outfile}');
-
-  world.messageHandler = (String prefix, String message, SourceSpan span) {
-    var jsonSpan;
-    if (span == null) {
-      // Any messages that are not associated with a file become associated with
-      // the library file.
-      jsonSpan = { 'file': request['input'], 'start': 0, 'end': 0,
-          'line': 0, 'column': 0 };
-    } else {
-      jsonSpan = { 'file': span.file.filename, 'start': span.start, 'end': span.end,
-          'line': span.line, 'column': span.column };
-    }
-    
-    writeJson(output, {
-      'kind': 'message',
-      'id': id,
-      'prefix': prefix,
-      'message': message,
-      'span': jsonSpan
-    });
-  };
-
-  bool success = false;
-
-  try {
-    success = world.compileAndSave();
-  } catch (var exc) {
-    writeJson(output, {
-      'kind': 'message',
-      'id': id,
-      'message': "compiler exception: ${exc}"
-    });
-  }
-
-  writeJson(output, {
-    'kind': 'done',
-    'command': 'compile',
-    'id': id,
-    'result': success
-  });
-}
-
-/// Writes the supplied JSON-serializable [obj] to the output stream.
-writeJson(OutputStream output, obj) {
-  var jsonBytes = encodeUtf8(JSON.stringify(obj));
-  output.write(int32ToBigEndian(jsonBytes.length), copyBuffer:false);
-  output.write(jsonBytes, copyBuffer:false);
-}
-
-List<int> int32ToBigEndian(int len) =>
-  [(len >> 24) & 0x7F, (len >> 16) & 0xFF, (len >> 8) & 0xFF, len & 0xFF];
-
-int bigEndianToInt32(List<int> bytes) =>
-  (bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3];
-
-/// Reads some JSON, and pops bytes that were read.
-/// Returns `null` if we don't have enough bytes yet.
-tryReadJson(List<int> bytes) {
-  if (bytes.length < 4) return;
-  int len = bigEndianToInt32(bytes);
-  if (bytes.length < 4 + len) {
-    print('info: wait for more data (got ${bytes.length}, need ${len + 4})');
-    return null; // wait for more data
-  }
-  var jsonBytes = bytes.getRange(4, len);
-  bytes.removeRange(0, len + 4);
-  return JSON.parse(decodeUtf8(jsonBytes));
-}
-
-/// Tries to handle a request. This routine will remove any bytes it consumes.
-/// If the data is incomplete it's expected to leave them in the list and
-/// return.
-handleRequest(List<int> bytes, Socket socket) {
-  var request = tryReadJson(bytes);
-  if (request == null) {
-    return; // wait for more data
-  }
-  switch (request['command']) {
-    // TODO(jmesserly): split "compile" and "newWorld" commands, add
-    // a way to set options.
-    case 'compile':
-      compileCommand(request, socket.outputStream);
-      break;
-    case 'close':
-      socket.close();
-      break;
-    default:
-      print('info: unknown command "${request["command"]}"');
-  }
-}
-
-/// Accepts an incoming socket connection
-onConnect(Socket socket) {
-  var bytes = new List<int>();
-  socket.onData = () {
-    var pos = bytes.length;
-    var len = socket.available();
-    bytes.insertRange(pos, len);
-    socket.readList(bytes, pos, len);
-    handleRequest(bytes, socket);
-  };
-  socket.onError = () => socket.close();
-  socket.onClosed = () => socket.close();
-
-  // Close the serverSocket - we only ever service one client.
-  serverSocket.close();
-}
-
-/// This token is used by the editor to know when frogc has successfully come up.
-final STARTUP_TOKEN = 'frog: accepting connections';
-
-/// Initialize the server and start listening for requests. Needs hostname/ip
-/// and port that it should listen on, and the Frog library directory.
-ServerSocket startServer(String homedir, String host, int port) {
-  // Initialize the compiler. Only need to happen once.
-  initializeCompiler(homedir);
-  serverSocket = new ServerSocket(host, port, 50);
-  serverSocket.onConnection = onConnect;
-  print('$STARTUP_TOKEN on $host:${serverSocket.port}');
-  return serverSocket;
-}
-
-/// Main entry point for FrogServer.
-main() {
-  // TODO(jmesserly): until we have a way of getting the executable's path,
-  // we'll run from current working directory.
-  var homedir = new File('.').fullPathSync();
-
-  var argv = new Options().arguments;
-  var host = argv.length > 0 ? argv[0] : '127.0.0.1';
-  var port = argv.length > 1 ? Math.parseInt(argv[1]) : 1236;
-  startServer(homedir, host, port);
-}