248 lines
7.1 KiB
JavaScript
248 lines
7.1 KiB
JavaScript
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'use strict';
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var path = require('path'),
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monitor = require('./monitor'),
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cli = require('./cli'),
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version = require('./version'),
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util = require('util'),
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utils = require('./utils'),
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rules = require('./rules'),
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bus = utils.bus,
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help = require('./help'),
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config = require('./config'),
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eventHandlers = {};
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// this is fairly dirty, but theoretically sound since it's part of the
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// stable module API
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config.required = utils.isRequired;
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function nodemon(settings) {
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nodemon.reset();
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// allow the cli string as the argument to nodemon, and allow for
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// `node nodemon -V app.js` or just `-V app.js`
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if (typeof settings === 'string') {
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settings = settings.trim();
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if (settings.indexOf('node') !== 0) {
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if (settings.indexOf('nodemon') !== 0) {
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settings = 'nodemon ' + settings;
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}
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settings = 'node ' + settings;
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}
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settings = cli.parse(settings);
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}
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// set the debug flag as early as possible to get all the detailed logging
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if (settings.verbose) {
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utils.debug = true;
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}
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if (settings.help) {
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console.log(help(settings.help));
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if (!config.required) {
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process.exit(0);
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}
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}
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if (settings.version) {
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console.log(version);
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if (!config.required) {
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process.exit(0);
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}
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}
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// nodemon tools like grunt-nodemon. This affects where
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// the script is being run from, and will affect where
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// nodemon looks for the nodemon.json files
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if (settings.cwd) {
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// this is protection to make sure we haven't dont the chdir already...
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// say like in cli/parse.js (which is where we do this once already!)
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if (process.cwd() !== path.resolve(config.system.cwd, settings.cwd)) {
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process.chdir(settings.cwd);
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}
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}
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config.load(settings, function (config) {
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if (!config.options.dump && !config.options.script && config.options.execOptions.exec === 'node') {
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if (!config.required) {
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console.log(help('usage'));
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process.exit();
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}
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return;
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}
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// always echo out the current version
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utils.log.info(version);
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if (config.options.cwd) {
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utils.log.detail('process root: ' + process.cwd());
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}
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config.loaded.forEach(function (filename) {
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utils.log.detail('reading config ' + filename);
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});
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// echo out notices about running state
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if (config.options.restartable) {
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// allow nodemon to restart when the use types 'rs\n'
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process.stdin.resume();
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process.stdin.setEncoding('utf8');
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process.stdin.on('data', function (data) {
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data = (data + '').trim().toLowerCase();
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// if the keys entered match the restartable value, then restart!
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if (data === config.options.restartable) {
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bus.emit('restart');
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}
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});
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} else {
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// if 'restartable' is disabled (via a nodemon.json)
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// then it's possible we're being used with a REPL
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// so let's make sure we don't eat the key presses
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// but also, since we're wrapping, watch out for
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// special keys, like ctrl+c x 2 or '.exit' or ctrl+d
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var ctrlC = false,
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buffer = '';
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process.stdin.on('data', function (data) {
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buffer += data;
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data = data.toString();
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var chr = data.charCodeAt(0);
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if (chr === 3) {
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if (ctrlC) {
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process.exit();
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}
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ctrlC = true;
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} else if (buffer === '.exit' || chr === 4) {
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process.exit();
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} else if (ctrlC || chr === 10) {
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ctrlC = false;
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buffer = '';
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}
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});
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process.stdin.setRawMode(true);
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}
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if (config.options.restartable) {
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utils.log.info('to restart at any time, enter `' + config.options.restartable + '`');
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}
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var none = function (v) {
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return v;
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};
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utils.log.detail('ignoring: ' + config.options.monitor.map(function (rule) {
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return rule.slice(0, 1) === '!' ? rule.slice(1) : false;
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}).filter(none).join(' '));
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utils.log.info('watching: ' + config.options.monitor.map(function (rule) {
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return rule.slice(0, 1) !== '!' ? rule : false;
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}).filter(none).join(' '));
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utils.log.detail('watching extensions: ' + config.options.ext);
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if (config.options.dump) {
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utils.log._log('log', '--------------');
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utils.log._log('log', 'node: ' + process.version);
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utils.log._log('log', 'nodemon: ' + version);
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utils.log._log('log', 'command: ' + process.argv.join(' '));
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utils.log._log('log', 'cwd: ' + process.cwd());
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utils.log._log('log', ['OS:', process.platform, process.arch].join(' '));
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utils.log._log('log', '--------------');
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utils.log._log('log', util.inspect(config, { depth: null }));
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utils.log._log('log', '--------------');
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if (!config.required) {
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process.exit();
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}
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} else {
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config.run = true;
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if (config.options.stdout === false) {
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bus.on('start', function() {
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nodemon.stdout = bus.stdout;
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nodemon.stderr = bus.stderr;
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bus.emit('readable');
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});
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}
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monitor.run(config.options);
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}
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});
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return nodemon;
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}
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nodemon.restart = function () {
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utils.log.status('restarting child process');
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bus.emit('restart');
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return nodemon;
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};
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nodemon.addListener = nodemon.on = function (event, handler) {
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if (!eventHandlers[event]) { eventHandlers[event] = []; }
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eventHandlers[event].push(handler);
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bus.on(event, handler);
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return nodemon;
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};
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nodemon.once = function (event, handler) {
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if (!eventHandlers[event]) { eventHandlers[event] = []; }
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eventHandlers[event].push(handler);
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bus.once(event, function () {
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eventHandlers[event].splice(eventHandlers[event].indexOf(handler), 1);
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handler.apply(this, arguments);
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});
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return nodemon;
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};
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nodemon.emit = function () {
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bus.emit.apply(bus, [].slice.call(arguments));
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return nodemon;
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};
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nodemon.removeAllListners = function (event) {
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// unbind only the `nodemon.on` event handlers
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Object.keys(eventHandlers).filter(function (e) {
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return event ? e === event : true;
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}).forEach(function (event) {
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eventHandlers[event].forEach(function (handler) {
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bus.removeListener(event, handler);
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eventHandlers[event].splice(eventHandlers[event].indexOf(handler), 1);
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});
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});
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return nodemon;
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};
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nodemon.reset = function () {
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// console.trace();
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nodemon.removeAllListners();
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utils.reset();
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rules.reset();
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config.run = false;
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};
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// expose the full config
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nodemon.config = config;
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// on exception *inside* nodemon, shutdown wrapped node app
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if (!config.required) {
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process.on('uncaughtException', function (err) {
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console.error('exception in nodemon killing node');
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console.error(err.stack);
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console.error();
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console.error('----------------------------------------------------------');
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console.error('If appropriate, please file an error with the output from:');
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console.error('$ ' + process.argv.join(' ') + (process.argv.indexOf('--dump') === -1 ? ' --dump' : ''));
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console.error('At http://github.com/remy/nodemon/issues/new');
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console.error('----------------------------------------------------------\n');
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if (!config.required) {
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process.exit(1);
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}
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});
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}
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module.exports = nodemon;
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