var fs = require('fs'); var os = require('os'); var path = require('path'); var env = process.env; var ADBLOCK = is(env.ADBLOCK); 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 OPEN_SOURCE_CONTRIBUTOR = is(env.OPEN_SOURCE_CONTRIBUTOR); var MINUTE = 60 * 1000; // you could add a PR with an env variable for your CI detection var CI = [ 'BUILD_NUMBER', 'CI', 'CONTINUOUS_INTEGRATION', 'DRONE', 'RUN_ID' ].some(function (it) { return is(env[it]); }); 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:\u001B[0m\n' + '\u001B[96m>\u001B[94m https://opencollective.com/core-js \u001B[0m\n' + '\u001B[96m>\u001B[94m https://patreon.com/zloirock \u001B[0m\n' + '\u001B[96m>\u001B[94m bitcoin: bc1qlea7544qtsmj2rayg0lthvza9fau63ux0fstcz \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 || OPEN_SOURCE_CONTRIBUTOR) 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)); 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, regexp/no-control-character -- output console.log(COLOR ? BANNER : BANNER.replace(/\u001B\[\d+m/g, '')); } if (isBannerRequired()) showBanner();