mirror of https://github.com/thangisme/notes.git
647 lines
19 KiB
JavaScript
647 lines
19 KiB
JavaScript
var path = require('path');
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var e2c = require('electron-to-chromium/versions');
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var fs = require('fs');
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var caniuse = require('caniuse-db/data.json').agents;
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function normalize(versions) {
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return versions.filter(function (version) {
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return typeof version === 'string';
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});
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}
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var FLOAT_RANGE = /^\d+(\.\d+)?(-\d+(\.\d+)?)*$/;
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var IS_SECTION = /^\s*\[(.+)\]\s*$/;
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function uniq(array) {
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var filtered = [];
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for ( var i = 0; i < array.length; i++ ) {
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if ( filtered.indexOf(array[i]) === -1 ) filtered.push(array[i]);
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}
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return filtered;
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}
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function BrowserslistError(message) {
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this.name = 'BrowserslistError';
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this.message = message || '';
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this.browserslist = true;
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if ( Error.captureStackTrace ) {
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Error.captureStackTrace(this, BrowserslistError);
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}
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}
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BrowserslistError.prototype = Error.prototype;
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// Helpers
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function error(name) {
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throw new BrowserslistError(name);
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}
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function fillUsage(result, name, data) {
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for ( var i in data ) {
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result[name + ' ' + i] = data[i];
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}
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}
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function isFile(file) {
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return fs.existsSync(file) && fs.statSync(file).isFile();
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}
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function eachParent(file, callback) {
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if ( !fs.readFileSync || !fs.existsSync || !fs.statSync ) {
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/* istanbul ignore next */
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return undefined;
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}
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if ( file === false ) return undefined;
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if ( typeof file === 'undefined' ) file = '.';
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var loc = path.resolve(file);
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do {
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var result = callback(loc);
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if (typeof result !== 'undefined') return result;
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} while (loc !== (loc = path.dirname(loc)));
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return undefined;
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}
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function getStat(opts) {
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if ( opts.stats ) {
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return opts.stats;
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} else if ( process.env.BROWSERSLIST_STATS ) {
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return process.env.BROWSERSLIST_STATS;
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} else {
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return eachParent(opts.path, function (dir) {
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var file = path.join(dir, 'browserslist-stats.json');
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if ( isFile(file) ) {
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return file;
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}
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});
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}
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}
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function parsePackage(file) {
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var config = JSON.parse(fs.readFileSync(file)).browserslist;
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if ( typeof config === 'object' && config.length ) {
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config = { defaults: config };
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}
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return config;
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}
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function pickEnv(config, opts) {
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if ( typeof config !== 'object' ) return config;
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var env;
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if ( typeof opts.env === 'string' ) {
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env = opts.env;
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} else if ( typeof process.env.BROWSERSLIST_ENV === 'string' ) {
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env = process.env.BROWSERSLIST_ENV;
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} else if ( typeof process.env.NODE_ENV === 'string' ) {
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env = process.env.NODE_ENV;
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} else {
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env = 'development';
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}
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return config[env] || config.defaults;
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}
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function generateFilter(sign, version) {
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version = parseFloat(version);
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if ( sign === '>' ) {
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return function (v) {
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return parseFloat(v) > version;
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};
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} else if ( sign === '>=' ) {
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return function (v) {
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return parseFloat(v) >= version;
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};
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} else if ( sign === '<' ) {
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return function (v) {
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return parseFloat(v) < version;
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};
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} else if ( sign === '<=' ) {
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return function (v) {
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return parseFloat(v) <= version;
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};
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}
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}
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function compareStrings(a, b) {
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if (a < b) return -1;
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if (a > b) return +1;
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return 0;
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}
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/**
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* Return array of browsers by selection queries.
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*
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* @param {string[]} queries Browser queries.
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* @param {object} opts Options.
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* @param {string} [opts.path="."] Path to processed file.
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* It will be used to find config files.
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* @param {string} [opts.env="development"] Processing environment.
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* It will be used to take right
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* queries from config file.
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* @param {string} [opts.config] Path to config file with queries.
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* @param {object} [opts.stats] Custom browser usage statistics
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* for "> 1% in my stats" query.
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* @return {string[]} Array with browser names in Can I Use.
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*
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* @example
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* browserslist('IE >= 10, IE 8') //=> ['ie 11', 'ie 10', 'ie 8']
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*/
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var browserslist = function (queries, opts) {
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if ( typeof opts === 'undefined' ) opts = { };
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if ( typeof queries === 'undefined' || queries === null ) {
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if ( process.env.BROWSERSLIST ) {
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queries = process.env.BROWSERSLIST;
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} else if ( opts.config || process.env.BROWSERSLIST_CONFIG ) {
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var file = opts.config || process.env.BROWSERSLIST_CONFIG;
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queries = pickEnv(browserslist.readConfig(file), opts);
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} else {
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queries = pickEnv(browserslist.findConfig(opts.path), opts);
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}
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}
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if ( typeof queries === 'undefined' || queries === null ) {
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queries = browserslist.defaults;
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}
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if ( typeof queries === 'string' ) {
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queries = queries.split(/,\s*/);
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}
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var context = { };
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var stats = getStat(opts);
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if ( stats ) {
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if ( typeof stats === 'string' ) {
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try {
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stats = JSON.parse(fs.readFileSync(stats));
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} catch (e) {
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error('Can\'t read ' + stats);
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}
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}
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if ( 'dataByBrowser' in stats ) {
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stats = stats.dataByBrowser;
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}
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context.customUsage = { };
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for ( var browser in stats ) {
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fillUsage(context.customUsage, browser, stats[browser]);
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}
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}
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var result = [];
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queries.forEach(function (selection) {
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if ( selection.trim() === '' ) return;
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var exclude = selection.indexOf('not ') === 0;
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if ( exclude ) selection = selection.slice(4);
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for ( var i in browserslist.queries ) {
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var type = browserslist.queries[i];
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var match = selection.match(type.regexp);
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if ( match ) {
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var args = [context].concat(match.slice(1));
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var array = type.select.apply(browserslist, args);
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if ( exclude ) {
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array = array.concat(array.map(function (j) {
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return j.replace(/\s\d+/, ' 0');
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}));
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result = result.filter(function (j) {
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return array.indexOf(j) === -1;
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});
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} else {
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result = result.concat(array);
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}
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return;
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}
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}
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error('Unknown browser query `' + selection + '`');
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});
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result = result.map(function (i) {
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var parts = i.split(' ');
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var name = parts[0];
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var version = parts[1];
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if ( version === '0' ) {
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return name + ' ' + browserslist.byName(name).versions[0];
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} else {
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return i;
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}
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}).sort(function (name1, name2) {
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name1 = name1.split(' ');
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name2 = name2.split(' ');
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if ( name1[0] === name2[0] ) {
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if ( FLOAT_RANGE.test(name1[1]) && FLOAT_RANGE.test(name2[1]) ) {
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return parseFloat(name2[1]) - parseFloat(name1[1]);
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} else {
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return compareStrings(name2[1], name1[1]);
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}
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} else {
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return compareStrings(name1[0], name2[0]);
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}
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});
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return uniq(result);
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};
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var normalizeVersion = function (data, version) {
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if ( data.versions.indexOf(version) !== -1 ) {
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return version;
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} else {
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return browserslist.versionAliases[data.name][version];
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}
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};
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var loadCountryStatistics = function (country) {
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if ( !browserslist.usage[country] ) {
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var usage = { };
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var data = require(
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'caniuse-db/region-usage-json/' + country + '.json');
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for ( var i in data.data ) {
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fillUsage(usage, i, data.data[i]);
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}
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browserslist.usage[country] = usage;
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}
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};
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// Will be filled by Can I Use data below
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browserslist.data = { };
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browserslist.usage = {
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global: { },
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custom: null
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};
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// Default browsers query
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browserslist.defaults = [
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'> 1%',
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'last 2 versions',
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'Firefox ESR'
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];
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// What browsers will be used in `last n version` query
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browserslist.major = [
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'safari', 'opera', 'ios_saf', 'ie_mob', 'ie', 'edge', 'firefox', 'chrome'
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];
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// Browser names aliases
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browserslist.aliases = {
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fx: 'firefox',
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ff: 'firefox',
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ios: 'ios_saf',
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explorer: 'ie',
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blackberry: 'bb',
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explorermobile: 'ie_mob',
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operamini: 'op_mini',
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operamobile: 'op_mob',
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chromeandroid: 'and_chr',
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firefoxandroid: 'and_ff',
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ucandroid: 'and_uc'
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};
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// Aliases to work with joined versions like `ios_saf 7.0-7.1`
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browserslist.versionAliases = { };
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// Get browser data by alias or case insensitive name
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browserslist.byName = function (name) {
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name = name.toLowerCase();
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name = browserslist.aliases[name] || name;
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return browserslist.data[name];
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};
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// Get browser data by alias or case insensitive name and throw error
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// on unknown browser
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browserslist.checkName = function (name) {
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var data = browserslist.byName(name);
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if ( !data ) error('Unknown browser ' + name);
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return data;
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};
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// Read and parse config
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browserslist.readConfig = function (file) {
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if ( !fs.existsSync(file) || !fs.statSync(file).isFile() ) {
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error('Can\'t read ' + file + ' config');
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}
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return browserslist.parseConfig(fs.readFileSync(file));
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};
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// Find config, read file and parse it
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browserslist.findConfig = function (from) {
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return eachParent(from, function (dir) {
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var config = path.join(dir, 'browserslist');
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var pkg = path.join(dir, 'package.json');
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var pkgBrowserslist;
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if ( isFile(pkg) ) {
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try {
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pkgBrowserslist = parsePackage(pkg);
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} catch (e) {
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console.warn(
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'[Browserslist] Could not parse ' + pkg + '. ' +
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'Ignoring it.');
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}
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}
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if ( isFile(config) && pkgBrowserslist ) {
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error(
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dir + ' contains both browserslist ' +
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'and package.json with browsers');
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} else if ( isFile(config) ) {
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return browserslist.readConfig(config);
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} else if ( pkgBrowserslist ) {
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return pkgBrowserslist;
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}
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});
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};
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/**
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* Return browsers market coverage.
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*
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* @param {string[]} browsers Browsers names in Can I Use.
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* @param {string} [country="global"] Which country statistics should be used.
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*
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* @return {number} Total market coverage for all selected browsers.
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*
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* @example
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* browserslist.coverage(browserslist('> 1% in US'), 'US') //=> 83.1
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*/
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browserslist.coverage = function (browsers, country) {
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if ( country && country !== 'global') {
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country = country.toUpperCase();
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loadCountryStatistics(country);
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} else {
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country = 'global';
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}
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return browsers.reduce(function (all, i) {
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var usage = browserslist.usage[country][i];
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if ( usage === undefined ) {
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usage = browserslist.usage[country][i.replace(/ [\d.]+$/, ' 0')];
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}
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return all + (usage || 0);
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}, 0);
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};
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// Return array of queries from config content
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browserslist.parseConfig = function (string) {
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var result = { defaults: [] };
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var section = 'defaults';
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string.toString()
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.replace(/#[^\n]*/g, '')
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.split(/\n/)
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.map(function (line) {
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return line.trim();
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})
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.filter(function (line) {
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return line !== '';
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})
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.forEach(function (line) {
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if ( IS_SECTION.test(line) ) {
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section = line.match(IS_SECTION)[1].trim();
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result[section] = result[section] || [];
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} else {
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result[section].push(line);
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}
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});
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return result;
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};
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browserslist.queries = {
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lastVersions: {
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regexp: /^last\s+(\d+)\s+versions?$/i,
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select: function (context, versions) {
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var selected = [];
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browserslist.major.forEach(function (name) {
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var data = browserslist.byName(name);
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if ( !data ) return;
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var array = data.released.slice(-versions);
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array = array.map(function (v) {
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return data.name + ' ' + v;
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});
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selected = selected.concat(array);
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});
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return selected;
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}
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},
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lastByBrowser: {
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regexp: /^last\s+(\d+)\s+(\w+)\s+versions?$/i,
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select: function (context, versions, name) {
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var data = browserslist.checkName(name);
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return data.released.slice(-versions).map(function (v) {
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return data.name + ' ' + v;
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});
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}
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},
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globalStatistics: {
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regexp: /^>\s*(\d*\.?\d+)%$/,
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select: function (context, popularity) {
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popularity = parseFloat(popularity);
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var result = [];
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for ( var version in browserslist.usage.global ) {
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if ( browserslist.usage.global[version] > popularity ) {
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result.push(version);
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}
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}
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return result;
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}
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},
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customStatistics: {
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regexp: /^>\s*(\d*\.?\d+)%\s+in\s+my\s+stats$/,
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select: function (context, popularity) {
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popularity = parseFloat(popularity);
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var result = [];
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if ( !context.customUsage ) {
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error('Custom usage statistics was not provided');
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}
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for ( var version in context.customUsage ) {
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if ( context.customUsage[version] > popularity ) {
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result.push(version);
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}
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}
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return result;
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}
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},
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countryStatistics: {
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regexp: /^>\s*(\d*\.?\d+)%\s+in\s+(\w\w)$/,
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select: function (context, popularity, country) {
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popularity = parseFloat(popularity);
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country = country.toUpperCase();
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var result = [];
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loadCountryStatistics(country);
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var usage = browserslist.usage[country];
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for ( var version in usage ) {
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if ( usage[version] > popularity ) {
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result.push(version);
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}
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}
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return result;
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}
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},
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electronRange: {
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regexp: /^electron\s+([\d\.]+)\s*-\s*([\d\.]+)$/i,
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select: function (context, from, to) {
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if ( !e2c[from] ) error('Unknown version ' + from + ' of electron');
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if ( !e2c[to] ) error('Unknown version ' + to + ' of electron');
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from = parseFloat(from);
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to = parseFloat(to);
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return Object.keys(e2c).filter(function (i) {
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var parsed = parseFloat(i);
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return parsed >= from && parsed <= to;
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}).map(function (i) {
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return 'chrome ' + e2c[i];
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});
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}
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},
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range: {
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regexp: /^(\w+)\s+([\d\.]+)\s*-\s*([\d\.]+)$/i,
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select: function (context, name, from, to) {
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var data = browserslist.checkName(name);
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from = parseFloat(normalizeVersion(data, from) || from);
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to = parseFloat(normalizeVersion(data, to) || to);
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var filter = function (v) {
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var parsed = parseFloat(v);
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return parsed >= from && parsed <= to;
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};
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return data.released.filter(filter).map(function (v) {
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return data.name + ' ' + v;
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});
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}
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},
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electronVersions: {
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regexp: /^electron\s*(>=?|<=?)\s*([\d\.]+)$/i,
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select: function (context, sign, version) {
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return Object.keys(e2c)
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.filter(generateFilter(sign, version))
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.map(function (i) {
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return 'chrome ' + e2c[i];
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});
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}
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},
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versions: {
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regexp: /^(\w+)\s*(>=?|<=?)\s*([\d\.]+)$/,
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select: function (context, name, sign, version) {
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var data = browserslist.checkName(name);
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var alias = normalizeVersion(data, version);
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if ( alias ) {
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version = alias;
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}
|
|
return data.released
|
|
.filter(generateFilter(sign, version))
|
|
.map(function (v) {
|
|
return data.name + ' ' + v;
|
|
});
|
|
}
|
|
},
|
|
|
|
esr: {
|
|
regexp: /^(firefox|ff|fx)\s+esr$/i,
|
|
select: function () {
|
|
return ['firefox 45'];
|
|
}
|
|
},
|
|
|
|
opMini: {
|
|
regexp: /(operamini|op_mini)\s+all/i,
|
|
select: function () {
|
|
return ['op_mini all'];
|
|
}
|
|
},
|
|
|
|
electron: {
|
|
regexp: /^electron\s+([\d\.]+)$/i,
|
|
select: function (context, version) {
|
|
var chrome = e2c[version];
|
|
if ( !chrome ) error('Unknown version ' + version + ' of electron');
|
|
return ['chrome ' + chrome];
|
|
}
|
|
},
|
|
|
|
direct: {
|
|
regexp: /^(\w+)\s+(tp|[\d\.]+)$/i,
|
|
select: function (context, name, version) {
|
|
if ( /tp/i.test(version) ) version = 'TP';
|
|
var data = browserslist.checkName(name);
|
|
var alias = normalizeVersion(data, version);
|
|
if ( alias ) {
|
|
version = alias;
|
|
} else {
|
|
if ( version.indexOf('.') === -1 ) {
|
|
alias = version + '.0';
|
|
} else if ( /\.0$/.test(version) ) {
|
|
alias = version.replace(/\.0$/, '');
|
|
}
|
|
alias = normalizeVersion(data, alias);
|
|
if ( alias ) {
|
|
version = alias;
|
|
} else {
|
|
error('Unknown version ' + version + ' of ' + name);
|
|
}
|
|
}
|
|
return [data.name + ' ' + version];
|
|
}
|
|
},
|
|
|
|
defaults: {
|
|
regexp: /^defaults$/i,
|
|
select: function () {
|
|
return browserslist(browserslist.defaults);
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
// Get and convert Can I Use data
|
|
|
|
(function () {
|
|
for ( var name in caniuse ) {
|
|
var browser = caniuse[name];
|
|
browserslist.data[name] = {
|
|
name: name,
|
|
versions: normalize(caniuse[name].versions),
|
|
released: normalize(caniuse[name].versions.slice(0, -3))
|
|
};
|
|
fillUsage(browserslist.usage.global, name, browser.usage_global);
|
|
|
|
browserslist.versionAliases[name] = { };
|
|
for ( var i = 0; i < browser.versions.length; i++ ) {
|
|
var full = browser.versions[i];
|
|
if (!full) continue;
|
|
|
|
if ( full.indexOf('-') !== -1 ) {
|
|
var interval = full.split('-');
|
|
for ( var j = 0; j < interval.length; j++ ) {
|
|
browserslist.versionAliases[name][interval[j]] = full;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}());
|
|
|
|
module.exports = browserslist;
|