index.js

   1 #!/usr/bin/env node
   2
   3 const ver = process.version.match(/v(\d+)\.\d+\.\d+/);
   4
   5 if (parseInt(ver[1], 10) < 12) {
   6     console.error(
   7         `node.js ${process.version} is not supported. ` +
   8         'CyTube requires node v12 or later.'
   9     )
  10     process.exit(1);
  11 }
  12
  13 checkPlayerExists();
  14
  15 const args = parseArgs();
  16
  17 if (args.has('--daemonize')) {
  18     fork();
  19 } else {
  20     try {
  21         require('./lib/main');
  22     } catch (err) {
  23         console.error('FATAL: Failed to require() lib/main.js');
  24         handleStartupError(err);
  25     }
  26 }
  27
  28 function fork() {
  29     try {
  30         console.log('Warning: --daemonize support is experimental.  Use with caution.');
  31
  32         const spawn = require('child_process').spawn;
  33         const path = require('path');
  34         const main = path.resolve(__dirname, 'lib', 'main.js');
  35
  36         const child = spawn(process.argv[0], [main], {
  37             detached: true,
  38             stdio: 'ignore' // TODO: support setting stdout/stderr logfile
  39         });
  40
  41         child.unref();
  42         console.log('Forked with PID ' + child.pid);
  43     } catch (error) {
  44         console.error('FATAL: Failed to fork lib/main.js');
  45         handleStartupError(error);
  46     }
  47 }
  48
  49 function handleStartupError(err) {
  50     if (/module version mismatch/i.test(err.message)) {
  51         console.error('Module version mismatch, try running `npm rebuild` or ' +
  52                       'removing the node_modules folder and re-running ' +
  53                       '`npm install`');
  54     } else {
  55         console.error('Possible causes:\n' +
  56                       '  * You haven\'t run `npm run build-server` to regenerate ' +
  57                       'the runtime\n' +
  58                       '  * You\'ve upgraded node/npm and haven\'t rebuilt dependencies ' +
  59                       '(try `npm rebuild` or `rm -rf node_modules && npm install`)\n' +
  60                       '  * A dependency failed to install correctly (check the output ' +
  61                       'of `npm install` next time)');
  62     }
  63
  64     console.error(err.stack);
  65     process.exit(1);
  66 }
  67
  68 function parseArgs() {
  69     const args = new Map();
  70     for (var i = 2; i < process.argv.length; i++) {
  71         if (/^--/.test(process.argv[i])) {
  72             var val;
  73             if (i+1 < process.argv.length) val = process.argv[i+1];
  74             else val = null;
  75
  76             args.set(process.argv[i], val);
  77         }
  78     }
  79
  80     return args;
  81 }
  82
  83 function checkPlayerExists() {
  84     const fs = require('fs');
  85     const path = require('path');
  86
  87     const playerDotJs = path.join(__dirname, 'www', 'js', 'player.js');
  88
  89     if (!fs.existsSync(playerDotJs)) {
  90         console.error(
  91             'Missing video player: www/js/player.js.  This should have been ' +
  92             'automatically generated by the postinstall step of ' +
  93             '`npm install`, but you can manually regenerate it by running ' +
  94             '`npm run build-player`'
  95         );
  96         process.exit(1);
  97     }
  98 }