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Reduce bundle size
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@ai
ai committed Aug 8, 2017
1 parent 50f9209 commit 640b62f
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Showing 2 changed files with 35 additions and 51 deletions.
83 changes: 33 additions & 50 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,8 @@ var path = require('path')
var e2c = require('electron-to-chromium/versions')
var fs = require('fs')

var agents = require('caniuse-lite').agents
var region = require('caniuse-lite').region
var agents = require('caniuse-lite/dist/unpacker/agents').agents
var region = require('caniuse-lite/dist/unpacker/region').default

function normalize (versions) {
return versions.filter(function (version) {
Expand Down Expand Up @@ -221,8 +221,8 @@ function browserslist (queries, opts) {
selection = selection.slice(4)
}

for (var i in browserslist.queries) {
var type = browserslist.queries[i]
for (var i = 0; i < QUERIES.length; i++) {
var type = QUERIES[i]
var match = selection.match(type.regexp)
if (match) {
var args = [context].concat(match.slice(1))
Expand All @@ -248,7 +248,7 @@ function browserslist (queries, opts) {
var name = parts[0]
var version = parts[1]
if (version === '0') {
return name + ' ' + browserslist.byName(name).versions[0]
return name + ' ' + byName(name).versions[0]
} else {
return i
}
Expand Down Expand Up @@ -329,16 +329,16 @@ browserslist.aliases = {
browserslist.versionAliases = { }

// Get browser data by alias or case insensitive name
browserslist.byName = function (name) {
function byName (name) {
name = name.toLowerCase()
name = browserslist.aliases[name] || name
return browserslist.data[name]
}

// Get browser data by alias or case insensitive name and throw error
// on unknown browser
browserslist.checkName = function (name) {
var data = browserslist.byName(name)
function checkName (name) {
var data = byName(name)
if (!data) throw new BrowserslistError('Unknown browser ' + name)
return data
}
Expand Down Expand Up @@ -462,14 +462,13 @@ browserslist.clearCaches = function () {
configCache = {}
}

browserslist.queries = {

lastVersions: {
var QUERIES = [
{
regexp: /^last\s+(\d+)\s+versions?$/i,
select: function (context, versions) {
var selected = []
Object.keys(agents).forEach(function (name) {
var data = browserslist.byName(name)
var data = byName(name)
if (!data) return
var array = data.released.slice(-versions)

Expand All @@ -481,23 +480,21 @@ browserslist.queries = {
return selected
}
},

lastByBrowser: {
{
regexp: /^last\s+(\d+)\s+(\w+)\s+versions?$/i,
select: function (context, versions, name) {
var data = browserslist.checkName(name)
var data = checkName(name)
return data.released.slice(-versions).map(function (v) {
return data.name + ' ' + v
})
}
},

unreleased: {
{
regexp: /^unreleased\s+versions$/i,
select: function () {
var selected = []
Object.keys(agents).forEach(function (name) {
var data = browserslist.byName(name)
var data = byName(name)
if (!data) return
var array = data.versions.filter(function (v) {
return data.released.indexOf(v) === -1
Expand All @@ -511,20 +508,18 @@ browserslist.queries = {
return selected
}
},

unreleasedByBrowser: {
{
regexp: /^unreleased\s+(\w+)\s+versions?$/i,
select: function (context, name) {
var data = browserslist.checkName(name)
var data = checkName(name)
return data.versions.filter(function (v) {
return data.released.indexOf(v) === -1
}).map(function (v) {
return data.name + ' ' + v
})
}
},

globalStatistics: {
{
regexp: /^(>=?)\s*(\d*\.?\d+)%$/,
select: function (context, sign, popularity) {
popularity = parseFloat(popularity)
Expand All @@ -543,8 +538,7 @@ browserslist.queries = {
return result
}
},

customStatistics: {
{
regexp: /^(>=?)\s*(\d*\.?\d+)%\s+in\s+my\s+stats$/,
select: function (context, sign, popularity) {
popularity = parseFloat(popularity)
Expand All @@ -567,8 +561,7 @@ browserslist.queries = {
return result
}
},

countryStatistics: {
{
regexp: /^(>=?)\s*(\d*\.?\d+)%\s+in\s+((alt-)?\w\w)$/,
select: function (context, sign, popularity, place) {
popularity = parseFloat(popularity)
Expand Down Expand Up @@ -596,8 +589,7 @@ browserslist.queries = {
return result
}
},

electronRange: {
{
regexp: /^electron\s+([\d.]+)\s*-\s*([\d.]+)$/i,
select: function (context, from, to) {
if (!e2c[from]) {
Expand All @@ -618,11 +610,10 @@ browserslist.queries = {
})
}
},

range: {
{
regexp: /^(\w+)\s+([\d.]+)\s*-\s*([\d.]+)$/i,
select: function (context, name, from, to) {
var data = browserslist.checkName(name)
var data = checkName(name)
from = parseFloat(normalizeVersion(data, from) || from)
to = parseFloat(normalizeVersion(data, to) || to)

Expand All @@ -636,8 +627,7 @@ browserslist.queries = {
})
}
},

electronVersions: {
{
regexp: /^electron\s*(>=?|<=?)\s*([\d.]+)$/i,
select: function (context, sign, version) {
return Object.keys(e2c)
Expand All @@ -647,11 +637,10 @@ browserslist.queries = {
})
}
},

versions: {
{
regexp: /^(\w+)\s*(>=?|<=?)\s*([\d.]+)$/,
select: function (context, name, sign, version) {
var data = browserslist.checkName(name)
var data = checkName(name)
var alias = normalizeVersion(data, version)
if (alias) {
version = alias
Expand All @@ -663,22 +652,19 @@ browserslist.queries = {
})
}
},

esr: {
{
regexp: /^(firefox|ff|fx)\s+esr$/i,
select: function () {
return ['firefox 52']
}
},

opMini: {
{
regexp: /(operamini|op_mini)\s+all/i,
select: function () {
return ['op_mini all']
}
},

electron: {
{
regexp: /^electron\s+([\d.]+)$/i,
select: function (context, version) {
var chrome = e2c[version]
Expand All @@ -689,12 +675,11 @@ browserslist.queries = {
return ['chrome ' + chrome]
}
},

direct: {
{
regexp: /^(\w+)\s+(tp|[\d.]+)$/i,
select: function (context, name, version) {
if (/^tp$/i.test(version)) version = 'TP'
var data = browserslist.checkName(name)
var data = checkName(name)
var alias = normalizeVersion(data, version)
if (alias) {
version = alias
Expand All @@ -715,15 +700,13 @@ browserslist.queries = {
return [data.name + ' ' + version]
}
},

defaults: {
{
regexp: /^defaults$/i,
select: function () {
return browserslist(browserslist.defaults)
}
}

};
];

// Get and convert Can I Use data

Expand Down
3 changes: 2 additions & 1 deletion package.json
View file
Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@
"size-limit": [
{
"path": "index.js",
"limit": "190 KB"
"limit": "152 KB"
}
],
"scripts": {
Expand All @@ -70,6 +70,7 @@
"*.js": "eslint"
},
"browser": {
"path": false,
"fs": false
},
"pre-commit": [
Expand Down

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