metro/react-packager/index.js

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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
require('../babelRegisterOnly')([/react-packager\/src/]);
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useGracefulFs();
var debug = require('debug');
var omit = require('underscore').omit;
var Activity = require('./src/Activity');
exports.createServer = createServer;
exports.middleware = function(options) {
var server = createServer(options);
return server.processRequest.bind(server);
};
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exports.Activity = Activity;
// Renamed "package" to "bundle". But maintain backwards
// compat.
exports.buildPackage =
exports.buildBundle = function(options, bundleOptions) {
var server = createNonPersistentServer(options);
return server.buildBundle(bundleOptions)
.then(function(p) {
server.end();
return p;
});
};
exports.buildPrepackBundle = function(options, bundleOptions) {
var server = createNonPersistentServer(options);
return server.buildPrepackBundle(bundleOptions)
.then(function(p) {
server.end();
return p;
});
};
exports.buildPackageFromUrl =
exports.buildBundleFromUrl = function(options, reqUrl) {
var server = createNonPersistentServer(options);
return server.buildBundleFromUrl(reqUrl)
.then(function(p) {
server.end();
return p;
});
};
exports.getDependencies = function(options, bundleOptions) {
var server = createNonPersistentServer(options);
return server.getDependencies(bundleOptions)
.then(function(r) {
server.end();
return r.dependencies;
});
};
exports.createClientFor = function(options) {
if (options.verbose) {
enableDebug();
}
startSocketInterface();
return (
require('./src/SocketInterface')
.getOrCreateSocketFor(omit(options, ['verbose']))
);
};
function useGracefulFs() {
var fs = require('fs');
var gracefulFs = require('graceful-fs');
gracefulFs.gracefulify(fs);
}
function enableDebug() {
// react-packager logs debug messages using the 'debug' npm package, and uses
// the following prefix throughout.
// To enable debugging, we need to set our pattern or append it to any
// existing pre-configured pattern to avoid disabling logging for
// other packages
var debugPattern = 'ReactNativePackager:*';
var existingPattern = debug.load();
if (existingPattern) {
debugPattern += ',' + existingPattern;
}
debug.enable(debugPattern);
}
function createServer(options) {
// the debug module is configured globally, we need to enable debugging
// *before* requiring any packages that use `debug` for logging
if (options.verbose) {
enableDebug();
}
startSocketInterface();
var Server = require('./src/Server');
return new Server(omit(options, ['verbose']));
}
function createNonPersistentServer(options) {
Activity.disable();
// Don't start the filewatcher or the cache.
if (options.nonPersistent == null) {
options.nonPersistent = true;
}
return createServer(options);
}
// we need to listen on a socket as soon as a server is created, but only once.
// This file also serves as entry point when spawning a socket server; in that
// case we need to start the server immediately.
var didStartSocketInterface = false;
function startSocketInterface() {
if (didStartSocketInterface) {
return;
}
didStartSocketInterface = true;
require('./src/SocketInterface').listenOnServerMessages();
}
if (require.main === module) { // used as entry point
startSocketInterface();
}