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