delogx-upgrader-test.js

#!/usr/bin/env nodejs

// DelogX (github.com/deluxghost/DelogX) Auto Upgrader
// By tcdw (github.com/tcdw)
// Released under The 3-Clause BSD License

var fs = require("fs");
var path = require('path');
var branch = 'master';
var dlxpath = path.resolve('/opt/delogx');
var suffix = Math.floor(new Date().getTime() / 1000);
var spawn = require('child_process').spawn;
var spawnSync = require('child_process').spawnSync;
var lp = '[Upgrader] ';    // aka log prefix

mktemp = spawn('mktemp', ['-d']);
mktemp.stdout.on('data', (data) => {
  console.log(lp + 'Downloading DelogX (' + branch + ') ...');
  var tmpdir = (data + '').split("\n")[0];
  dl = spawn('git', ['clone', 'git://github.com/deluxghost/DelogX', '-b', branch, tmpdir]);
  
  dl.stdout.on('data', (data) => {
    console.log(`${data}`);
  });
  
  dl.stderr.on('data', (data) => {
    console.log(`${data}`);
  });
  
  dl.on('close', (code) => {
    if (code != 0) {
      console.error(lp + 'Git exec error: ' + code);
      process.exit(1);
    } else {
      console.log(lp + 'Backing up old version of DelogX ...');
      try {
        // spawnSync('cp', ['-d', '-p', dlxpath, dlxpath + '-' + suffix]);
        spawnSync('mv', [dlxpath, dlxpath + '-' + suffix]);
      } catch (e) {
        console.error(e);
        console.log(lp + 'Backup failed');
        console.log(lp + 'For data security reason, the upgrade process is terminated.');
        process.exit(1);
      }
      console.log(lp + 'Upgrading ...');
      try {
        spawnSync('rm', ['-rf', tmpdir + '/posts']);
        spawnSync('rm', ['-rf', tmpdir + '/pages']);
        spawnSync('mv', [tmpdir + '/DelogX/templates', tmpdir + '/DelogX/templates-new']);
        spawnSync('mv', [tmpdir + '/DelogX/static', tmpdir + '/DelogX/static-new']);
        spawnSync('mv', [tmpdir + '/DelogX/config.py', tmpdir + '/DelogX/config.py-new']);
        spawnSync('cp', ['-r', '-p', dlxpath + '-' + suffix + '/posts', tmpdir + '/posts']);
        spawnSync('cp', ['-r', '-p', dlxpath + '-' + suffix + '/pages', tmpdir + '/pages']);
        spawnSync('cp', ['-r', '-p', dlxpath + '-' + suffix + '/DelogX/templates', tmpdir + '/DelogX/templates']);
        spawnSync('cp', ['-r', '-p', dlxpath + '-' + suffix + '/DelogX/static', tmpdir + '/DelogX/static']);
        spawnSync('cp', ['-p', dlxpath + '-' + suffix + '/DelogX/config.py', tmpdir + '/DelogX/config.py']);
        spawnSync('cp', ['-r', '-p', tmpdir, dlxpath]);
        spawnSync('bash', ['cd ' + dlxpath + ' && chmod -R +x *.py']);
      } catch (e) {
        console.error(e);
        console.log(lp + 'Upgrade failed');
        console.log(lp + 'Don\'t panic, the old version backup is avaliable in ' + dlxpath + '-' + suffix);
        console.log(lp + 'The upgrade process is terminated.');
        process.exit(1);
      }
      console.log(lp + 'Finished!');
      console.log(lp + 'Old version backup: ' + dlxpath + '-' + suffix);
    }
  });
});