| /* eslint-disable max-len */ |
| var fs = require('fs'); |
| var os = require('os'); |
| var path = require('path'); |
| var env = process.env; |
| |
| var ADBLOCK = is(env.ADBLOCK); |
| var CI = is(env.CI); |
| var COLOR = is(env.npm_config_color); |
| var DISABLE_OPENCOLLECTIVE = is(env.DISABLE_OPENCOLLECTIVE); |
| var SILENT = ['silent', 'error', 'warn'].indexOf(env.npm_config_loglevel) !== -1; |
| var MINUTE = 60 * 1000; |
| |
| 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' + |
| '\u001B[96mThe project needs your help! Please consider supporting of core-js on Open Collective or Patreon: \u001B[0m\n' + |
| '\u001B[96m>\u001B[94m https://opencollective.com/core-js \u001B[0m\n' + |
| '\u001B[96m>\u001B[94m https://www.patreon.com/zloirock \u001B[0m\n\n' + |
| '\u001B[96mAlso, the author of core-js (\u001B[94m https://github.com/zloirock \u001B[96m) is looking for a good job -)\u001B[0m\n'; |
| |
| function is(it) { |
| return !!it && it !== '0' && it !== 'false'; |
| } |
| |
| function isBannerRequired() { |
| if (ADBLOCK || CI || DISABLE_OPENCOLLECTIVE || SILENT) return false; |
| var file = path.join(os.tmpdir(), 'core-js-banners'); |
| var banners = []; |
| try { |
| var DELTA = Date.now() - fs.statSync(file).mtime; |
| if (DELTA >= 0 && DELTA < MINUTE * 3) { |
| banners = JSON.parse(fs.readFileSync(file, 'utf8')); |
| if (banners.indexOf(BANNER) !== -1) return false; |
| } |
| } catch (error) { |
| banners = []; |
| } |
| try { |
| banners.push(BANNER); |
| fs.writeFileSync(file, JSON.stringify(banners), 'utf8'); |
| } catch (error) { /* empty */ } |
| return true; |
| } |
| |
| function showBanner() { |
| // eslint-disable-next-line no-console,no-control-regex |
| console.log(COLOR ? BANNER : BANNER.replace(/\u001B\[\d+m/g, '')); |
| } |
| |
| if (isBannerRequired()) showBanner(); |