first commit

build/node_modules/browserslist/cli.js

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+#!/usr/bin/env node
+
+var browserslist = require('./')
+var pkg = require('./package.json')
+var args = process.argv.slice(2)
+
+var USAGE = 'Usage:\n' +
+            '  ' + pkg.name + '\n' +
+            '  ' + pkg.name + ' "QUERIES"\n' +
+            '  ' + pkg.name + ' --config="path/to/browserlist/file"\n' +
+            '  ' + pkg.name + ' --coverage "QUERIES"\n' +
+            '  ' + pkg.name + ' --coverage=US "QUERIES"\n' +
+            '  ' + pkg.name + ' --env="environment name defined in config"\n' +
+            '  ' + pkg.name + ' --stats="path/to/browserlist/stats/file"'
+
+function isArg (arg) {
+  return args.some(function (str) {
+    return str === arg || str.indexOf(arg + '=') === 0
+  })
+}
+
+function error (msg) {
+  process.stderr.write(pkg.name + ': ' + msg + '\n')
+  process.exit(1)
+}
+
+if (isArg('--help') || isArg('-h')) {
+  process.stdout.write(pkg.description + '.\n\n' + USAGE + '\n')
+} else if (isArg('--version') || isArg('-v')) {
+  process.stdout.write(pkg.name + ' ' + pkg.version + '\n')
+} else {
+  var mode = 'browsers'
+  var opts = { }
+  var queries
+  var country
+
+  for (var i = 0; i < args.length; i++) {
+    if (args[i][0] !== '-') {
+      queries = args[i].replace(/^['"]|['"]$/g, '')
+      continue
+    }
+
+    var arg = args[i].split('=')
+    var name = arg[0]
+    var value = arg[1]
+
+    if (value) value = value.replace(/^['"]|['"]$/g, '')
+
+    if (name === '--config' || name === '-b') {
+      opts.config = value
+    } else if (name === '--env' || name === '-e') {
+      opts.env = value
+    } else if (name === '--stats' || name === '-s') {
+      opts.stats = value
+    } else if (name === '--coverage' || name === '-c') {
+      mode = 'coverage'
+      if (value) country = value
+    } else {
+      error('Unknown arguments ' + args[i] + '.\n\n' + USAGE)
+    }
+  }
+
+  if (!queries && !opts.config) {
+    if (browserslist.findConfig(process.cwd())) {
+      opts.path = process.cwd()
+    } else {
+      error(
+        'Browserslist config did not found. ' +
+        'Define queries or config path.' +
+        '\n\n' + USAGE
+      )
+    }
+  }
+
+  var browsers
+  try {
+    browsers = browserslist(queries, opts)
+  } catch (e) {
+    if (e.name === 'BrowserslistError') {
+      error(e.message)
+    } else {
+      throw e
+    }
+  }
+
+  if (mode === 'browsers') {
+    browsers.forEach(function (browser) {
+      process.stdout.write(browser + '\n')
+    })
+  } else {
+    var result = browserslist.coverage(browsers, country)
+    var round = Math.round(result * 100) / 100.0
+
+    var end = 'globally'
+    if (country && country !== 'global') {
+      end = 'in the ' + country.toUpperCase()
+    }
+
+    process.stdout.write(
+      'These browsers account for ' + round + '% of all users ' +
+            end + '\n')
+  }
+}