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mineos.js
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mineos.js
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var fs = require('fs-extra');
var path = require('path');
var events = require('events');
var async = require('async');
var child_process = require('child_process');
var which = require('which');
var mineos = exports;
mineos.DIRS = {
'servers': 'servers',
'backup': 'backup',
'archive': 'archive',
'profiles': 'profiles',
'import': 'import'
}
mineos.SP_DEFAULTS = {
'server-port': 25565,
'max-players': 20,
'level-seed': '',
'gamemode': 0,
'difficulty': 1,
'level-type': 'DEFAULT',
'level-name': 'world',
'max-build-height': 256,
'generate-structures': 'true',
'generator-settings': '',
'server-ip': '0.0.0.0',
'enable-query': 'false'
}
var proc_paths = [
'/usr/compat/linux/proc',
'/system/lxproc',
'/proc',
'/compat/linux/proc'
]
var PROC_PATH = null;
for (var proc in proc_paths) {
try {
fs.statSync(path.join(proc_paths[proc], 'uptime'));
PROC_PATH = proc_paths[proc];
break;
} catch (e) {}
}
mineos.server_list = function(base_dir) {
return fs.readdirSync(path.join(base_dir, mineos.DIRS['servers']));
}
mineos.server_list_up = function() {
return Object.keys(mineos.server_pids_up());
}
mineos.server_pids_up = function() {
var cmdline, environ, match;
var pids = fs.readdirSync(PROC_PATH).filter(function(e) { if (/^([0-9]+)$/.test(e)) {return e} });
var SCREEN_REGEX = /screen[^S]+S mc-([^\s]+)/i;
var JAVA_REGEX = /\.mc-([^\s]+)/i;
var servers_found = {};
for (var i=0; i < pids.length; i++) {
try {
cmdline = fs.readFileSync(path.join(PROC_PATH, pids[i].toString(), 'cmdline'))
.toString('ascii')
.replace(/\u0000/g, ' ');
} catch (e) {
continue;
}
screen_match = SCREEN_REGEX.exec(cmdline);
if (screen_match) {
if (screen_match[1] in servers_found)
servers_found[screen_match[1]]['screen'] = parseInt(pids[i]);
else
servers_found[screen_match[1]] = {'screen': parseInt(pids[i])}
} else {
try {
environ = fs.readFileSync(path.join(PROC_PATH, pids[i].toString(), 'environ'))
.toString('ascii')
.replace(/\u0000/g, ' ');
} catch (e) {
continue;
}
java_match = JAVA_REGEX.exec(environ);
if (java_match) {
if (java_match[1] in servers_found)
servers_found[java_match[1]]['java'] = parseInt(pids[i]);
else
servers_found[java_match[1]] = {'java': parseInt(pids[i])}
}
}
}
return servers_found;
}
mineos.valid_server_name = function(server_name) {
var regex_valid_server_name = /^(?!\.)[a-zA-Z0-9_\.]+$/;
return regex_valid_server_name.test(server_name);
}
mineos.extract_server_name = function(base_dir, server_path) {
var re = new RegExp('{0}/([a-zA-Z0-9_\.]+)'.format(path.join(base_dir, mineos.DIRS['servers'])));
try {
return re.exec(server_path)[1];
} catch(e) {
throw new Error('no server name in path');
}
}
mineos.dependencies = async.memoize(function(callback) {
async.parallel({
'screen': async.apply(which, 'screen'),
'tar': async.apply(which, 'tar'),
'rsync': async.apply(which, 'rsync'),
'java': async.apply(which, 'java'),
'rdiff-backup': async.apply(which, 'rdiff-backup')
}, callback);
})
mineos.mc = function(server_name, base_dir) {
var self = this;
self.server_name = server_name;
process.umask(0002);
self.env = {
base_dir: base_dir,
cwd: path.join(base_dir, mineos.DIRS['servers'], server_name),
bwd: path.join(base_dir, mineos.DIRS['backup'], server_name),
awd: path.join(base_dir, mineos.DIRS['archive'], server_name),
pwd: path.join(base_dir, mineos.DIRS['profiles']),
sp: path.join(base_dir, mineos.DIRS['servers'], server_name, 'server.properties'),
sc: path.join(base_dir, mineos.DIRS['servers'], server_name, 'server.config'),
cc: path.join(base_dir, mineos.DIRS['servers'], server_name, 'cron.config')
}
// ini related functions and vars
var memoized_files = {};
var memoize_timestamps = {};
function read_ini(filepath, callback) {
var ini = require('ini');
fs.readFile(filepath, function(err, data) {
if (err) {
fs.writeFile(filepath, '', function(inner_err) {
callback(inner_err, {});
});
} else {
callback(err, ini.parse(data.toString()));
}
})
}
// server properties functions
self.sp = function(callback) {
var fn = 'server.properties';
async.waterfall([
async.apply(fs.stat, self.env.sp),
function(stat_data, cb) {
if ( (fn in memoize_timestamps) &&
(memoize_timestamps[fn] - stat_data.mtime == 0) ) {
memoized_files[fn](self.env.sp, cb);
} else {
memoize_timestamps[fn] = stat_data.mtime;
memoized_files[fn] = async.memoize(read_ini);
memoized_files[fn](self.env.sp, cb);
}
}
], callback);
}
self.modify_sp = function(property, new_value, callback) {
var ini = require('ini');
async.waterfall([
async.apply(self.sp),
function(sp_data, cb) {
sp_data[property] = new_value;
cb(null, sp_data);
},
function(sp_data, cb) {
memoize_timestamps['server.properties'] = 0;
fs.writeFile(self.env.sp, ini.stringify(sp_data), cb);
}
], callback)
}
self.overlay_sp = function(dict, callback) {
var ini = require('ini');
self.sp(function(err, props) {
for (var key in dict)
props[key] = dict[key];
self._sp = props;
memoize_timestamps['server.properties'] = 0;
fs.writeFile(self.env.sp, ini.stringify(self._sp), callback);
})
}
// server config functions
self.sc = function(callback) {
var fn = 'server.config';
async.waterfall([
async.apply(fs.stat, self.env.sc),
function(stat_data, cb) {
if ( (fn in memoize_timestamps) &&
(memoize_timestamps[fn] - stat_data.mtime == 0) ) {
memoized_files[fn](self.env.sc, cb);
} else {
memoize_timestamps[fn] = stat_data.mtime;
memoized_files[fn] = async.memoize(read_ini);
memoized_files[fn](self.env.sc, cb);
}
}
], function(err, retval) {
if (err) {
delete memoize_timestamps[fn];
delete memoized_files[fn];
callback(null, {});
} else {
callback(err, retval);
}
});
}
self.modify_sc = function(section, property, new_value, callback) {
var ini = require('ini');
async.waterfall([
async.apply(self.sc),
function(sc_data, cb) {
try {
sc_data[section][property] = new_value;
} catch (e) {
sc_data[section] = {};
sc_data[section][property] = new_value;
}
cb(null, sc_data);
},
function(sc_data, cb) {
memoize_timestamps['server.config'] = 0;
fs.writeFile(self.env.sc, ini.stringify(sc_data), cb);
}
], callback)
}
// cron config functions
self.crons = function(callback) {
read_ini(self.env.cc, callback);
}
self.add_cron = function(identifier, definition, callback) {
var ini = require('ini');
async.waterfall([
async.apply(self.crons),
function(cron_data, cb) {
cron_data[identifier] = definition;
cron_data[identifier]['enabled'] = false;
cb(null, cron_data);
},
function(cron_data, cb) {
fs.writeFile(self.env.cc, ini.stringify(cron_data), cb);
}
], callback)
}
self.delete_cron = function(identifier, callback) {
var ini = require('ini');
async.waterfall([
async.apply(self.crons),
function(cron_data, cb) {
delete cron_data[identifier];
cb(null, cron_data);
},
function(cron_data, cb) {
fs.writeFile(self.env.cc, ini.stringify(cron_data), cb);
}
], callback)
}
self.set_cron = function(identifier, enabled, callback) {
var ini = require('ini');
async.waterfall([
async.apply(self.crons),
function(cron_data, cb) {
cron_data[identifier]['enabled'] = enabled;
cb(null, cron_data);
},
function(cron_data, cb) {
fs.writeFile(self.env.cc, ini.stringify(cron_data), cb);
}
], callback)
}
self.create = function(owner, callback) {
async.series([
async.apply(self.verify, '!exists'),
async.apply(self.verify, '!up'),
async.apply(fs.ensureDir, self.env.cwd),
async.apply(fs.chown, self.env.cwd, owner['uid'], owner['gid']),
async.apply(fs.ensureDir, self.env.bwd),
async.apply(fs.chown, self.env.bwd, owner['uid'], owner['gid']),
async.apply(fs.ensureDir, self.env.awd),
async.apply(fs.chown, self.env.awd, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.sp),
async.apply(fs.chown, self.env.sp, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.sc),
async.apply(fs.chown, self.env.sc, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.cc),
async.apply(fs.chown, self.env.cc, owner['uid'], owner['gid']),
async.apply(self.overlay_sp, mineos.SP_DEFAULTS),
async.apply(self.modify_sc, 'java', 'java_binary', ''),
async.apply(self.modify_sc, 'java', 'java_xmx', '256'),
async.apply(self.modify_sc, 'onreboot', 'start', false),
], callback)
}
self.create_unconventional_server = function(owner, callback) {
async.series([
async.apply(self.verify, '!exists'),
async.apply(self.verify, '!up'),
async.apply(fs.ensureDir, self.env.cwd),
async.apply(fs.chown, self.env.cwd, owner['uid'], owner['gid']),
async.apply(fs.ensureDir, self.env.bwd),
async.apply(fs.chown, self.env.bwd, owner['uid'], owner['gid']),
async.apply(fs.ensureDir, self.env.awd),
async.apply(fs.chown, self.env.awd, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.sp),
async.apply(fs.chown, self.env.sp, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.sc),
async.apply(fs.chown, self.env.sc, owner['uid'], owner['gid']),
async.apply(fs.ensureFile, self.env.cc),
async.apply(fs.chown, self.env.cc, owner['uid'], owner['gid']),
async.apply(self.modify_sc, 'minecraft', 'unconventional', true),
], callback)
}
self.create_from_archive = function(owner, filepath, callback) {
function move_to_parent_dir(source_dir, inner_callback) {
var remainder = null;
var attempted_move = false;
async.waterfall([
async.apply(fs.readdir, source_dir),
function(files, cb) {
if (files.length == 1) {
remainder = files[0];
cb(null);
} else if (files.length == 4) {
var sp_idx = files.indexOf('server.properties');
var sc_idx = files.indexOf('server.config');
var cc_idx = files.indexOf('cron.config');
if (sp_idx >= 0) { files.splice(sp_idx, 1) }
if (sc_idx >= 0) { files.splice(sc_idx, 1) }
if (cc_idx >= 0) { files.splice(cc_idx, 1) }
remainder = files[0]
cb(!(files.length == 1)) // logically NOT-ing so len==1 continues
} else
cb(true);
},
function(cb) {
var attempted_move = true;
var inside_dir = path.join(source_dir, remainder);
fs.lstat(inside_dir, function(err, stat) {
if (stat.isDirectory)
cb(null);
else
cb(true);
})
},
function(cb) {
var old_dir = path.join(source_dir, remainder);
fs.readdir(old_dir, function(err, files) {
if (!err)
async.each(files, function(file, inner_cb) {
var old_filepath = path.join(old_dir, file);
var new_filepath = path.join(source_dir, file);
fs.move(old_filepath, new_filepath, { clobber: true }, inner_cb)
}, cb);
else
cb(err);
})
}
], function(err) {
if (attempted_move)
inner_callback(err);
else
inner_callback(null); //not really an error if it cancelled because no parent dir
});
}
if (filepath.match(/\//)) //if it has a '/', its hopefully an absolute path
var dest_filepath = filepath;
else // if it doesn't treat it as being from /import/
var dest_filepath = path.join(self.env.base_dir, mineos.DIRS['import'], filepath);
var split = dest_filepath.split('.');
var extension = split.pop();
if (extension == 'gz')
if (split.pop() == 'tar')
extension = 'tar.gz';
switch (extension) {
case 'zip':
var DecompressZip = require('decompress-zip');
function unzipper_it(cb) {
var unzipper = new DecompressZip(dest_filepath);
unzipper.on('error', function (err) {
cb(err);
});
unzipper.on('extract', function (log) {
move_to_parent_dir(self.env.cwd, cb);
});
unzipper.extract({
path: self.env.cwd
});
}
async.series([
async.apply(self.create, owner),
async.apply(unzipper_it),
async.apply(self.chown, owner['uid'], owner['gid'])
], callback)
break;
case 'tar.gz':
case 'tgz':
case 'tar':
var binary = which.sync('tar');
var args = ['-xf', dest_filepath];
var params = { cwd: self.env.cwd,
uid: owner.uid,
gid: owner.gid };
async.series([
async.apply(self.create, owner),
function(cb) {
memoize_timestamps = {};
var proc = child_process.spawn(binary, args, params);
proc.once('exit', function(code) {
cb(code);
})
}
], callback)
break;
}
}
self.accept_eula = function(callback) {
var EULA_PATH = path.join(self.env.cwd, 'eula.txt');
async.waterfall([
async.apply(fs.outputFile, EULA_PATH, 'eula=true'),
async.apply(fs.stat, self.env.cwd),
function(stat, cb) {
fs.chown(EULA_PATH, stat.uid, stat.gid, cb);
}
], callback)
}
self.delete = function(callback) {
async.series([
async.apply(self.verify, 'exists'),
async.apply(self.verify, '!up'),
async.apply(fs.remove, self.env.cwd),
async.apply(fs.remove, self.env.bwd),
async.apply(fs.remove, self.env.awd)
], callback)
}
self.get_start_args = function(callback) {
function type_jar_unconventional (inner_callback) {
var java_binary = which.sync('java');
async.series({
'binary': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).java_binary || java_binary;
cb((value.length ? null : 'No java binary assigned for server.'), value);
});
},
'xmx': function (cb) {
self.sc(function (err, dict) {
var value = parseInt((dict.java || {}).java_xmx) || 0;
cb((value >= 0 ? null : 'XMX heapsize must be positive integer >= 0'), value);
});
},
'xms': function (cb) {
self.sc(function (err, dict) {
var xmx = parseInt((dict.java || {}).java_xmx) || 0;
var xms = parseInt((dict.java || {}).java_xms) || 0;
cb((xmx >= xms && xms >= 0 ? null : 'XMS heapsize must be positive integer where XMX >= XMS >= 0'), xms);
});
},
'jarfile': function (cb) {
self.sc(function (err, dict) {
var jarfile = (dict.java || {}).jarfile;
if (!jarfile)
cb('Server not assigned a runnable jar');
else
cb(null, jarfile);
});
},
'jar_args': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).jar_args || '';
cb(null, value);
});
},
'java_tweaks': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).java_tweaks || null;
cb(null, value);
});
}
}, function(err, results) {
if (err) {
inner_callback(err, {});
} else {
var args = ['-dmS', 'mc-{0}'.format(self.server_name)];
args.push.apply(args, [results.binary, '-server']);
if (results.xmx > 0)
args.push('-Xmx{0}M'.format(results.xmx));
if (results.xms > 0)
args.push('-Xms{0}M'.format(results.xms));
if (results.java_tweaks) {
var splits = results.java_tweaks.split(/ /);
for (var i in splits)
args.push(splits[i]);
}
args.push.apply(args, ['-jar', results.jarfile]);
if (results.jar_args) {
var splits = results.jar_args.split(/ /);
for (var i in splits)
args.push(splits[i]);
}
inner_callback(null, args);
}
})
}
function type_jar(inner_callback) {
var java_binary = which.sync('java');
async.series({
'binary': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).java_binary || java_binary;
cb((value.length ? null : 'No java binary assigned for server.'), value);
});
},
'xmx': function (cb) {
self.sc(function (err, dict) {
var value = parseInt((dict.java || {}).java_xmx) || 0;
cb((value > 0 ? null : 'XMX heapsize must be positive integer > 0'), value);
});
},
'xms': function (cb) {
self.sc(function (err, dict) {
var xmx = parseInt((dict.java || {}).java_xmx) || 0;
var xms = parseInt((dict.java || {}).java_xms) || xmx;
cb((xmx >= xms && xms > 0 ? null : 'XMS heapsize must be positive integer where XMX >= XMS > 0'), xms);
});
},
'jarfile': function (cb) {
self.sc(function (err, dict) {
var jarfile = (dict.java || {}).jarfile;
if (!jarfile)
cb('Server not assigned a runnable jar');
else
cb(null, jarfile);
});
},
'jar_args': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).jar_args || 'nogui';
cb(null, value);
});
},
'java_tweaks': function (cb) {
self.sc(function (err, dict) {
var value = (dict.java || {}).java_tweaks || null;
cb(null, value);
});
}
}, function(err, results) {
if (err) {
inner_callback(err, {});
} else {
var args = ['-dmS', 'mc-{0}'.format(self.server_name)];
args.push.apply(args, [results.binary, '-server', '-Xmx{0}M'.format(results.xmx), '-Xms{0}M'.format(results.xms)]);
if (results.java_tweaks) {
var splits = results.java_tweaks.split(/ /);
for (var i in splits)
args.push(splits[i]);
}
args.push.apply(args, ['-jar', results.jarfile]);
if (results.jar_args) {
var splits = results.jar_args.split(/ /);
for (var i in splits)
args.push(splits[i]);
}
if (results.jarfile.toLowerCase().indexOf('forge') == 0)
if (results.jarfile.slice(-13).toLowerCase() == 'installer.jar')
args.push('--installServer');
inner_callback(null, args);
}
})
}
function type_phar(inner_callback) {
async.series({
'binary': function (cb) {
var php7 = path.join(self.env.cwd, '/bin/php7/bin/php');
try {
fs.accessSync(php7, fs.F_OK)
cb(null, './bin/php7/bin/php');
} catch (e) {
cb(null, './bin/php5/bin/php');
}
},
'pharfile': function (cb) {
self.sc(function (err, dict) {
var pharfile = (dict.java || {}).jarfile;
if (!pharfile)
cb('Server not assigned a runnable phar');
else
cb(null, pharfile);
});
}
}, function(err, results) {
if (err) {
inner_callback(err, {});
} else {
var args = ['-dmS', 'mc-{0}'.format(self.server_name), results.binary, results.pharfile];
inner_callback(null, args);
}
})
}
function type_cuberite(inner_callback) {
var args = ['-dmS', 'mc-{0}'.format(self.server_name), './Cuberite'];
inner_callback(null, args);
}
async.waterfall([
async.apply(self.sc),
function(sc_data, cb) {
var jarfile = (sc_data.java || {}).jarfile;
var unconventional = (sc_data.minecraft || {}).unconventional;
if (!jarfile)
cb('Cannot start server without a designated jar/phar.', null);
else if (jarfile.slice(-4).toLowerCase() == '.jar') {
if (unconventional)
type_jar_unconventional(cb);
else
type_jar(cb);
} else if (jarfile.slice(-5).toLowerCase() == '.phar')
type_phar(cb);
else if (jarfile == 'Cuberite')
type_cuberite(cb);
}
], callback)
}
self.copy_profile = function(callback) {
function rsync_profile(source, dest, username, groupname, callback_er) {
var rsync = require('rsync');
var obj = rsync.build({
source: source,
destination: dest,
flags: 'au',
shell:'ssh'
});
obj.set('--chown', '{0}:{1}'.format(username, groupname));
obj.set('--chmod' ,'ug=rwX');
obj.execute(function(error, code, cmd) {
callback_er(code);
});
}
var owner_info = null;
async.waterfall([
async.apply(self.verify, 'exists'),
async.apply(self.verify, '!up'),
async.apply(self.property, 'owner'),
function(owner, cb) {
owner_info = owner;
cb();
},
async.apply(self.sc),
function(sc, cb) {
if ((sc.minecraft || {}).profile) {
var source = path.join(self.env.pwd, sc.minecraft.profile) + '/';
var dest = self.env.cwd + '/';
rsync_profile(source, dest, owner_info['username'], owner_info['groupname'], cb);
} else {
cb(null);
}
}
], callback);
}
self.profile_delta = function(profile, callback) {
var rsync = require('rsync');
var stdout = [];
var stderr = [];
async.waterfall([
function(cb) {
var obj = rsync.build({
source: path.join(self.env.pwd, profile) + '/',
destination: self.env.cwd + '/',
flags: 'vrun',
shell:'ssh',
output: [function(output) {
stdout.push(output);
},
function(output) {
stderr.push(output);
}]
});
obj.execute(function(error, code, cmd) {
if (error)
cb(code, stderr)
else
cb(code, stdout);
});
},
function(incr_file_list, cb) {
incr_file_list.shift();
incr_file_list.pop();
var all_files = [];
for (var i in incr_file_list) {
if (incr_file_list[i].toString().match(/sent \d+ bytes/))
continue; //known pattern on freebsd: 'sent 79 bytes received 19 bytes 196.00 bytes/sec'
all_files = all_files.concat(incr_file_list[i].toString().split('\n'))
}
cb(null, all_files.filter(function(n){ return n.length }));
}
], callback)
}
self.start = function(callback) {
var args = null;
var params = { cwd: self.env.cwd };
async.waterfall([
async.apply(self.verify, 'exists'),
async.apply(self.verify, '!up'),
async.apply(self.property, 'owner'),
function(owner, cb) {
params['uid'] = owner['uid'];
params['gid'] = owner['gid'];
cb();
},
async.apply(self.get_start_args),
function(start_args, cb) {
args = start_args;
cb();
},
async.apply(self.sc),
function(sc_data, cb) {
if ((sc_data.minecraft || {}).profile) {
self.profile_delta(sc_data.minecraft.profile, function(err, changed_files) {
if (err) {
if (err == 23) //source dir of profile non-existent
cb(); //ignore issue; profile non-essential to start (server_jar is req'd only)
else
cb(err);
} else if (changed_files)
self.copy_profile(cb);
else
cb();
})
} else {
cb();
}
},
async.apply(which, 'screen'),
function(binary, cb) {
var proc = child_process.spawn(binary, args, params);
proc.once('close', cb);
}
], function(err, result) {
setTimeout(function() {
callback(err, result);
}, 100)
});
}
self.stop = function(callback) {
var test_interval_ms = 200;
var iterations = 0;
var MAX_ITERATIONS_TO_QUIT = 150;
async.series([
async.apply(self.verify, 'exists'),
async.apply(self.verify, 'up'),
async.apply(self.stuff, 'stop'),
function(cb) {
async.whilst(
function() {
if (iterations > MAX_ITERATIONS_TO_QUIT)
return false;
else
return (self.server_name in mineos.server_pids_up())
},
function(cc) {
iterations += 1;
setTimeout(cc, test_interval_ms)
},
function(ignored_err) {
if (self.server_name in mineos.server_pids_up())
cb(true); //error, stop did not succeed
else
cb(null); //no error, stop succeeded as expected
}
);
}
], callback);
}
self.restart = function(callback) {
async.series([
async.apply(self.stop),
async.apply(self.start)
], callback)
}
self.stop_and_backup = function(callback) {
async.series([
async.apply(self.stop),
async.apply(self.backup)
], callback)
}
self.kill = function(callback) {
var pids = mineos.server_pids_up();
var test_interval_ms = 200;
var MAX_ITERATIONS_TO_QUIT = 150;
if (!(self.server_name in pids)) {
callback(true);
} else {
process.kill(pids[self.server_name].java, 'SIGKILL');
var iterations = 0;
async.doWhilst(
function(cb) {
iterations += 1;
setTimeout(cb, test_interval_ms);
},
function() {
if (iterations > MAX_ITERATIONS_TO_QUIT)
return false;
else
return (self.server_name in mineos.server_pids_up());
},
function(ignored_err) {
if (self.server_name in mineos.server_pids_up())
callback(true); //error, stop succeeded: false
else
callback(null); //no error, stop succeeded: true
}
)
}
}
self.stuff = function(msg, callback) {
var params = { cwd: self.env.cwd };
var binary = which.sync('screen');
async.waterfall([
async.apply(self.verify, 'exists'),
async.apply(self.verify, 'up'),
function(cb) {
self.property('owner', function(err, result) {
params['uid'] = result['uid'];
params['gid'] = result['gid'];
cb(err);
})
},
function(cb) {
cb(null, child_process.spawn(binary,
['-S', 'mc-{0}'.format(self.server_name),
'-p', '0', '-X', 'eval', 'stuff "{0}\012"'.format(msg)],
params));
}
], callback);
}
self.saveall = function(seconds_delay, callback) {
var params = { cwd: self.env.cwd };
var binary = which.sync('screen');
var FALLBACK_DELAY_SECONDS = 5;
async.series([
async.apply(self.verify, 'exists'),
async.apply(self.verify, 'up'),
function(cb) {
self.property('owner', function(err, result) {
params['uid'] = result['uid'];
params['gid'] = result['gid'];
cb(err);
})
},
function(cb) {
cb(null, child_process.spawn(binary,
['-S', 'mc-{0}'.format(self.server_name),
'-p', '0', '-X', 'eval', 'stuff "save-all\012"'],
params));
},
function(cb) {
var actual_delay = (parseInt(seconds_delay) || FALLBACK_DELAY_SECONDS) * 1000;
setTimeout(cb, actual_delay);
}
], callback);
}
self.saveall_latest_log = function(callback) {
var TIMEOUT_LENGTH = 10000;
var tail = require('tail').Tail;
try {
var new_tail = new tail(path.join(self.env.cwd, 'logs/latest.log'));
} catch (e) {
callback(true);
return;
}
var timeout = setTimeout(function(){
new_tail.unwatch();
callback(true);
}, TIMEOUT_LENGTH);
new_tail.on('line', function(data) {
var match = data.match(/INFO]: Saved the world/);
if (match) { //previously on, return true
clearTimeout(timeout);
new_tail.unwatch();
callback(null);
}
})
async.waterfall([
async.apply(self.verify, 'exists'),
async.apply(self.verify, 'up'),
async.apply(self.stuff, 'save-all')
], function(err) {
if (err) {
clearTimeout(timeout);
new_tail.unwatch();
callback(true);
}
});