AK-21/Graphite-Industrial-Intelligence

1#!/usr/bin/env node2 3var fs = require('fs')4var updateDb = require('update-browserslist-db')5 6var browserslist = require('./')7var pkg = require('./package.json')8 9var args = process.argv.slice(2)10 11var USAGE =12  'Usage:\n' +13  '  npx browserslist\n' +14  '  npx browserslist "QUERIES"\n' +15  '  npx browserslist --json "QUERIES"\n' +16  '  npx browserslist --config="path/to/browserlist/file"\n' +17  '  npx browserslist --coverage "QUERIES"\n' +18  '  npx browserslist --coverage=US "QUERIES"\n' +19  '  npx browserslist --coverage=US,RU,global "QUERIES"\n' +20  '  npx browserslist --env="environment name defined in config"\n' +21  '  npx browserslist --stats="path/to/browserlist/stats/file"\n' +22  '  npx browserslist --mobile-to-desktop\n' +23  '  npx browserslist --ignore-unknown-versions\n'24 25function isArg(arg) {26  return args.some(function (str) {27    return str === arg || str.indexOf(arg + '=') === 028  })29}30 31function error(msg) {32  process.stderr.write('browserslist: ' + msg + '\n')33  process.exit(1)34}35 36if (isArg('--help') || isArg('-h')) {37  process.stdout.write(pkg.description + '.\n\n' + USAGE + '\n')38} else if (isArg('--version') || isArg('-v')) {39  process.stdout.write('browserslist ' + pkg.version + '\n')40} else if (isArg('--update-db')) {41  /* c8 ignore next 8 */42  process.stdout.write(43    'The --update-db command is deprecated.\n' +44      'Please use npx update-browserslist-db@latest instead.\n'45  )46  process.stdout.write('Browserslist DB update will still be made.\n')47  updateDb(function (str) {48    process.stdout.write(str)49  })50} else {51  var mode = 'browsers'52  var opts = {}53  var queries54  var areas55 56  for (var i = 0; i < args.length; i++) {57    if (args[i][0] !== '-') {58      queries = args[i].replace(/^["']|["']$/g, '')59      continue60    }61 62    var arg = args[i].split('=')63    var name = arg[0]64    var value = arg[1]65 66    if (value) value = value.replace(/^["']|["']$/g, '')67 68    if (name === '--config' || name === '-b') {69      opts.config = value70    } else if (name === '--env' || name === '-e') {71      opts.env = value72    } else if (name === '--stats' || name === '-s') {73      opts.stats = value74    } else if (name === '--coverage' || name === '-c') {75      if (mode !== 'json') mode = 'coverage'76      if (value) {77        areas = value.split(',')78      } else {79        areas = ['global']80      }81    } else if (name === '--json') {82      mode = 'json'83    } else if (name === '--mobile-to-desktop') {84      /* c8 ignore next */85      opts.mobileToDesktop = true86    } else if (name === '--ignore-unknown-versions') {87      /* c8 ignore next */88      opts.ignoreUnknownVersions = true89    } else {90      error('Unknown arguments ' + args[i] + '.\n\n' + USAGE)91    }92  }93 94  var browsers95  try {96    browsers = browserslist(queries, opts)97  } catch (e) {98    if (e.name === 'BrowserslistError') {99      error(e.message)100    } /* c8 ignore start */ else {101      throw e102    } /* c8 ignore end */103  }104 105  var coverage106  if (mode === 'browsers') {107    browsers.forEach(function (browser) {108      process.stdout.write(browser + '\n')109    })110  } else if (areas) {111    coverage = areas.map(function (area) {112      var stats113      if (area !== 'global') {114        stats = area115      } else if (opts.stats) {116        stats = JSON.parse(fs.readFileSync(opts.stats))117      }118      var result = browserslist.coverage(browsers, stats)119      var round = Math.round(result * 100) / 100.0120 121      return [area, round]122    })123 124    if (mode === 'coverage') {125      var prefix = 'These browsers account for '126      process.stdout.write(prefix)127      coverage.forEach(function (data, index) {128        var area = data[0]129        var round = data[1]130        var end = 'globally'131        if (area && area !== 'global') {132          end = 'in the ' + area.toUpperCase()133        } else if (opts.stats) {134          end = 'in custom statistics'135        }136 137        if (index !== 0) {138          process.stdout.write(prefix.replace(/./g, ' '))139        }140 141        process.stdout.write(round + '% of all users ' + end + '\n')142      })143    }144  }145 146  if (mode === 'json') {147    var data = { browsers: browsers }148    if (coverage) {149      data.coverage = coverage.reduce(function (object, j) {150        object[j[0]] = j[1]151        return object152      }, {})153    }154    process.stdout.write(JSON.stringify(data, null, '  ') + '\n')155  }156}157