JAVASCRIPT   4

postinstall.js

Guest on 11th June 2021 03:30:54 AM

  1. /* eslint-disable max-len -- for better formatting */
  2. var fs = require('fs');
  3. var os = require('os');
  4. var path = require('path');
  5. var env = process.env;
  6.  
  7. var ADBLOCK = is(env.ADBLOCK);
  8. var COLOR = is(env.npm_config_color);
  9. var DISABLE_OPENCOLLECTIVE = is(env.DISABLE_OPENCOLLECTIVE);
  10. var SILENT = ['silent', 'error', 'warn'].indexOf(env.npm_config_loglevel) !== -1;
  11. var OPEN_SOURCE_CONTRIBUTOR = is(env.OPEN_SOURCE_CONTRIBUTOR);
  12. var MINUTE = 60 * 1000;
  13.  
  14. // you could add a PR with an env variable for your CI detection
  15. var CI = [
  16.   'BUILD_NUMBER',
  17.   'CI',
  18.   'CONTINUOUS_INTEGRATION',
  19.   'DRONE',
  20.   'RUN_ID'
  21. ].some(function (it) { return is(env[it]); });
  22.  
  23. var BANNER = '\u001B[96mThank you for using core-js (\u001B[94m https://github.com/zloirock/core-js \u001B[96m) for polyfilling JavaScript standard library!\u001B[0m\n\n' +
  24.              '\u001B[96mThe project needs your help! Please consider supporting of core-js on Open Collective or Patreon: \u001B[0m\n' +
  25.              '\u001B[96m>\u001B[94m https://opencollective.com/core-js \u001B[0m\n' +
  26.              '\u001B[96m>\u001B[94m https://www.patreon.com/zloirock \u001B[0m\n\n' +
  27.              '\u001B[96mAlso, the author of core-js (\u001B[94m https://github.com/zloirock \u001B[96m) is looking for a good job -)\u001B[0m\n';
  28.  
  29. function is(it) {
  30.   return !!it && it !== '0' && it !== 'false';
  31. }
  32.  
  33. function isBannerRequired() {
  34.   if (ADBLOCK || CI || DISABLE_OPENCOLLECTIVE || SILENT || OPEN_SOURCE_CONTRIBUTOR) return false;
  35.   var file = path.join(os.tmpdir(), 'core-js-banners');
  36.   var banners = [];
  37.   try {
  38.     var DELTA = Date.now() - fs.statSync(file).mtime;
  39.     if (DELTA >= 0 && DELTA < MINUTE * 3) {
  40.       banners = JSON.parse(fs.readFileSync(file, 'utf8'));
  41.       if (banners.indexOf(BANNER) !== -1) return false;
  42.     }
  43.   } catch (error) {
  44.     banners = [];
  45.   }
  46.   try {
  47.     banners.push(BANNER);
  48.     fs.writeFileSync(file, JSON.stringify(banners), 'utf8');
  49.   } catch (error) { /* empty */ }
  50.   return true;
  51. }
  52.  
  53. function showBanner() {
  54.   // eslint-disable-next-line no-console,no-control-regex -- output
  55.   console.log(COLOR ? BANNER : BANNER.replace(/\u001B\[\d+m/g, ''));
  56. }
  57.  
  58. if (isBannerRequired()) showBanner();

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