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node_modules/browserslist/node.js

@@ -1,3 +1,4 @@
+var region = require('caniuse-lite/dist/unpacker/region').default
 var path = require('path')
 var fs = require('fs')
 
@@ -5,18 +6,21 @@ var BrowserslistError = require('./error')
 
 var IS_SECTION = /^\s*\[(.+)\]\s*$/
 var CONFIG_PATTERN = /^browserslist-config-/
-var SCOPED_CONFIG__PATTERN = /@[^./]+\/browserslist-config(-|$)/
+var SCOPED_CONFIG__PATTERN = /@[^/]+\/browserslist-config(-|$|\/)/
+var TIME_TO_UPDATE_CANIUSE = 6 * 30 * 24 * 60 * 60 * 1000
+var FORMAT = 'Browserslist config should be a string or an array ' +
+             'of strings with browser queries'
 
+var dataTimeChecked = false
 var filenessCache = { }
 var configCache = { }
-
 function checkExtend (name) {
   var use = ' Use `dangerousExtend` option to disable.'
   if (!CONFIG_PATTERN.test(name) && !SCOPED_CONFIG__PATTERN.test(name)) {
     throw new BrowserslistError(
       'Browserslist config needs `browserslist-config-` prefix. ' + use)
   }
-  if (name.indexOf('.') !== -1) {
+  if (name.replace(/^@[^/]+\//, '').indexOf('.') !== -1) {
     throw new BrowserslistError(
       '`.` not allowed in Browserslist config name. ' + use)
   }
@@ -46,6 +50,18 @@ function eachParent (file, callback) {
   return undefined
 }
 
+function check (section) {
+  if (Array.isArray(section)) {
+    for (var i = 0; i < section.length; i++) {
+      if (typeof section[i] !== 'string') {
+        throw new BrowserslistError(FORMAT)
+      }
+    }
+  } else if (typeof section !== 'string') {
+    throw new BrowserslistError(FORMAT)
+  }
+}
+
 function pickEnv (config, opts) {
   if (typeof config !== 'object') return config
 
@@ -57,7 +73,7 @@ function pickEnv (config, opts) {
   } else if (process.env.NODE_ENV) {
     name = process.env.NODE_ENV
   } else {
-    name = 'development'
+    name = 'production'
   }
 
   return config[name] || config.defaults
@@ -70,17 +86,34 @@ function parsePackage (file) {
       '`browserlist` key instead of `browserslist` in ' + file)
   }
   var list = config.browserslist
-  if (typeof list === 'object' && list.length) {
+  if (Array.isArray(list) || typeof list === 'string') {
     list = { defaults: list }
   }
+  for (var i in list) {
+    check(list[i])
+  }
+
   return list
 }
 
+function latestReleaseTime (agents) {
+  var latest = 0
+  for (var name in agents) {
+    var dates = agents[name].releaseDate || { }
+    for (var key in dates) {
+      if (latest < dates[key]) {
+        latest = dates[key]
+      }
+    }
+  }
+  return latest * 1000
+}
+
 module.exports = {
   loadQueries: function loadQueries (context, name) {
     if (!context.dangerousExtend) checkExtend(name)
     // eslint-disable-next-line security/detect-non-literal-require
-    var queries = require(name)
+    var queries = require(require.resolve(name, { paths: ['.'] }))
     if (!Array.isArray(queries)) {
       throw new BrowserslistError(
         '`' + name + '` config exports not an array of queries')
@@ -88,7 +121,7 @@ module.exports = {
     return queries
   },
 
-  getStat: function getStat (opts) {
+  getStat: function getStat (opts, data) {
     var stats
     if (opts.stats) {
       stats = opts.stats
@@ -109,7 +142,25 @@ module.exports = {
       }
     }
 
-    return stats
+    if (stats && 'dataByBrowser' in stats) {
+      stats = stats.dataByBrowser
+    }
+
+    if (typeof stats !== 'object') return undefined
+
+    var normalized = { }
+    for (var i in stats) {
+      var versions = Object.keys(stats[i])
+      if (versions.length === 1 && data[i] && data[i].versions.length === 1) {
+        var normal = Object.keys(data[i].versions)[0]
+        normalized[i] = { }
+        normalized[i][normal] = stats[i][versions[0]]
+      } else {
+        normalized[i] = stats[i]
+      }
+    }
+
+    return normalized
   },
 
   loadConfig: function loadConfig (opts) {
@@ -129,13 +180,28 @@ module.exports = {
     }
   },
 
+  loadCountry: function loadCountry (usage, country) {
+    var code = country.replace(/[^\w-]/g, '')
+    if (!usage[code]) {
+      // eslint-disable-next-line security/detect-non-literal-require
+      var compressed = require('caniuse-lite/data/regions/' + code + '.js')
+      var data = region(compressed)
+      usage[country] = { }
+      for (var i in data) {
+        for (var j in data[i]) {
+          usage[country][i + ' ' + j] = data[i][j]
+        }
+      }
+    }
+  },
+
   parseConfig: function parseConfig (string) {
     var result = { defaults: [] }
-    var section = 'defaults'
+    var sections = ['defaults']
 
     string.toString()
       .replace(/#[^\n]*/g, '')
-      .split(/\n/)
+      .split(/\n|,/)
       .map(function (line) {
         return line.trim()
       })
@@ -144,10 +210,18 @@ module.exports = {
       })
       .forEach(function (line) {
         if (IS_SECTION.test(line)) {
-          section = line.match(IS_SECTION)[1].trim()
-          result[section] = result[section] || []
+          sections = line.match(IS_SECTION)[1].trim().split(' ')
+          sections.forEach(function (section) {
+            if (result[section]) {
+              throw new BrowserslistError(
+                'Duplicate section ' + section + ' in Browserslist config')
+            }
+            result[section] = []
+          })
         } else {
-          result[section].push(line)
+          sections.forEach(function (section) {
+            result[section].push(line)
+          })
         }
       })
 
@@ -209,7 +283,34 @@ module.exports = {
   },
 
   clearCaches: function clearCaches () {
+    dataTimeChecked = false
     filenessCache = { }
     configCache = { }
+  },
+
+  oldDataWarning: function oldDataWarning (agentsObj) {
+    if (dataTimeChecked) return
+    dataTimeChecked = true
+
+    var latest = latestReleaseTime(agentsObj)
+    var halfYearAgo = Date.now() - TIME_TO_UPDATE_CANIUSE
+
+    if (latest !== 0 && latest < halfYearAgo) {
+      var command = 'npm update'
+      eachParent(__filename, function (dir) {
+        var pckg = path.join(dir, 'package.json')
+        var yarnLock = path.join(dir, 'yarn.lock')
+        if (isFile(pckg) && isFile(yarnLock)) {
+          command = 'yarn upgrade'
+        }
+      })
+      console.warn(
+        'Browserslist: caniuse-lite is outdated. ' +
+        'Please run next command `' + command + ' caniuse-lite browserslist`')
+    }
+  },
+
+  currentNode: function currentNode () {
+    return 'node ' + process.versions.node
   }
 }