142 lines
4.0 KiB
JavaScript
142 lines
4.0 KiB
JavaScript
'use strict';
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module.exports = function (pkg) {
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function checkUpgrade() {
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var https = require('https');
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function getFile(url, cb) {
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https.get(url, function (resp) {
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var str = '';
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resp.on('data', function (chunk) {
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//var chunk = conn.read();
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str += chunk.toString('utf8');
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});
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resp.on('end', function () {
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cb(null, str);
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});
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resp.on('error', function (err) {
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// ignore
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cb(err);
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});
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}).on('error', function (err) {
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// ignore
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cb(err);
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});
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}
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function isNewer(latest, myPkg) {
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//console.log('sort result:', sortLatest(latest, myPkg));
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return sortLatest(latest, myPkg) < 0;
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}
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function sortLatest(latest, myPkg) {
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var m = /^(v)?(\d+)\.(\d+)\.(\d+)(.*)/.exec(latest);
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var n = /^(v)?(\d+)\.(\d+)\.(\d+)(.*)/.exec(myPkg);
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//console.log('m', m);
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//console.log('n', n);
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if (!m) {
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if (!n) {
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return 0;
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}
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return 1;
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} else if (!n) {
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return -1;
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}
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if (parseInt(m[2], 10) > parseInt(n[2], 10)) {
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return -1;
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} else if (parseInt(m[2], 10) === parseInt(n[2], 10)) {
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if (parseInt(m[3], 10) > parseInt(n[3], 10)) {
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return -1;
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} else if (parseInt(m[3], 10) === parseInt(n[3], 10)) {
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if (parseInt(m[4], 10) > parseInt(n[4], 10)) {
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return -1;
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} else if (parseInt(m[4], 10) === parseInt(n[4], 10)) {
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// lex sorting
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if (m[5] > n[5]) {
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return -1;
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} else if (m[5] === n[5]) {
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return 0;
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} else {
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return 1;
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}
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} else {
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return 1;
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}
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} else {
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return 1;
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}
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} else {
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return 1;
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}
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}
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getFile("https://telebit.cloud/dist/index.tab", function (err, tab) {
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if (err) { /*ignore*/ return; }
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if (tab) { tab = tab && tab.toString() || ''; }
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var versions = [];
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var lines = tab.split(/[\r\n]/g);
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var headers = lines.shift().split(/\t/g);
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var chan = 'prod';
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var next;
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lines.forEach(function (line) {
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var tsv = {};
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var fields = line.split(/\t/g);
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fields.forEach(function (value, i) {
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tsv[headers[i]] = value;
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});
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versions.push(tsv);
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});
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// find matching version
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versions.some(function (v) {
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if (('v' + pkg.version) === v.version) {
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chan = v.channel;
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return true;
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}
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});
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// find first (most recent) version in channel
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versions.some(function (v) {
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if (chan === v.channel) {
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next = v;
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return true;
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}
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});
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if (!next || !isNewer(next.version, pkg.version)) {
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//console.log('DEBUG can\'t upgrade from', pkg.version, 'in channel', chan);
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return;
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}
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console.log('Upgrade Available: ' + next.version + ' in \'' + next.channel + '\'channel');
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getFile("https://telebit.cloud/dist/upgrade.js", function (err, script) {
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if (err) { /*ignore*/ return; }
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var os = require('os');
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var fs = require('fs');
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var path = require('path');
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var scriptname = 'telebit-upgrade-' + Math.round(Math.random() * 99999) + '.js';
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var pathname = path.join(os.tmpdir(), scriptname);
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fs.writeFile(pathname, script, function (err) {
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if (err) { /*ignore*/ return; }
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// console.log('DEBUG wrote', pathname);
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//var str =
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require(pathname)({
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package: pkg
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, root: path.resolve(__dirname, '..')
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, latest: next
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, channel: chan
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}, function () {
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// console.log('upgrade complete');
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});
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//console.log(str);
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});
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});
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});
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}
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var _interval = setInterval(checkUpgrade, 2 * 60 * 60 * 1000);
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process.nextTick(function () {
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checkUpgrade();
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});
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return function cancel() {
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clearInterval(_interval);
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};
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};
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