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understrap/node_modules/grunt-contrib-watch/tasks/lib/livereload.js

59 lines
1.5 KiB
JavaScript

/*
* grunt-contrib-watch
* http://gruntjs.com/
*
* Copyright (c) 2014 "Cowboy" Ben Alman, contributors
* Licensed under the MIT license.
*/
'use strict';
var tinylr = require('tiny-lr-fork');
var _ = require('lodash');
// Holds the servers out of scope in case watch is reloaded
var servers = Object.create(null);
module.exports = function(grunt) {
var defaults = { port: 35729 };
function LR(options) {
if (options === true) {
options = defaults;
} else if (typeof options === 'number') {
options = {port: options};
} else {
options = _.defaults(options, defaults);
}
if (servers[options.port]) {
this.server = servers[options.port];
} else {
this.server = tinylr(options);
this.server.server.removeAllListeners('error');
this.server.server.on('error', function(err) {
if (err.code === 'EADDRINUSE') {
grunt.fatal('Port ' + options.port + ' is already in use by another process.');
} else {
grunt.fatal(err);
}
process.exit(1);
});
this.server.listen(options.port, function(err) {
if (err) { return grunt.fatal(err); }
grunt.log.verbose.writeln('Live reload server started on port: ' + options.port);
});
servers[options.port] = this.server;
}
}
LR.prototype.trigger = function(files) {
grunt.log.verbose.writeln('Live reloading ' + grunt.log.wordlist(files) + '...');
this.server.changed({body:{files:files}});
};
return function(options) {
return new LR(options);
};
};