152 lines
4.2 KiB
JavaScript
152 lines
4.2 KiB
JavaScript
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'use strict';
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var browserslist = require('browserslist');
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function capitalize(str) {
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return str.slice(0, 1).toUpperCase() + str.slice(1);
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}
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var names = {
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ie: 'IE',
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ie_mob: 'IE Mobile',
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ios_saf: 'iOS',
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op_mini: 'Opera Mini',
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op_mob: 'Opera Mobile',
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and_chr: 'Chrome for Android',
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and_ff: 'Firefox for Android',
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and_uc: 'UC for Android'
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};
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var prefix = function prefix(name, prefixes) {
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var out = ' ' + name + ': ';
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out += prefixes.map(function (i) {
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return i.replace(/^-(.*)-$/g, '$1');
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}).join(', ');
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out += '\n';
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return out;
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};
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module.exports = function (prefixes) {
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if (prefixes.browsers.selected.length === 0) {
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return 'No browsers selected';
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}
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var versions = {};
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for (var _iterator = prefixes.browsers.selected, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var browser = _ref;
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var _browser$split = browser.split(' '),
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name = _browser$split[0],
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version = _browser$split[1];
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name = names[name] || capitalize(name);
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if (versions[name]) {
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versions[name].push(version);
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} else {
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versions[name] = [version];
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}
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}
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var out = 'Browsers:\n';
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for (var _browser in versions) {
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var list = versions[_browser];
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list = list.sort(function (a, b) {
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return parseFloat(b) - parseFloat(a);
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});
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out += ' ' + _browser + ': ' + list.join(', ') + '\n';
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}
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var coverage = browserslist.coverage(prefixes.browsers.selected);
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var round = Math.round(coverage * 100) / 100.0;
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out += '\nThese browsers account for ' + round + '% of all users globally\n';
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var atrules = '';
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for (var name in prefixes.add) {
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var data = prefixes.add[name];
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if (name[0] === '@' && data.prefixes) {
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atrules += prefix(name, data.prefixes);
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}
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}
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if (atrules !== '') {
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out += '\nAt-Rules:\n' + atrules;
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}
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var selectors = '';
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for (var _iterator2 = prefixes.add.selectors, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
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var _ref2;
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if (_isArray2) {
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if (_i2 >= _iterator2.length) break;
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_ref2 = _iterator2[_i2++];
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} else {
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_i2 = _iterator2.next();
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if (_i2.done) break;
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_ref2 = _i2.value;
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}
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var selector = _ref2;
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if (selector.prefixes) {
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selectors += prefix(selector.name, selector.prefixes);
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}
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}
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if (selectors !== '') {
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out += '\nSelectors:\n' + selectors;
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}
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var values = '';
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var props = '';
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for (var _name in prefixes.add) {
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var _data = prefixes.add[_name];
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if (_name[0] !== '@' && _data.prefixes) {
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props += prefix(_name, _data.prefixes);
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}
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if (!_data.values) {
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continue;
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}
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for (var _iterator3 = _data.values, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
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var _ref3;
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if (_isArray3) {
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if (_i3 >= _iterator3.length) break;
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_ref3 = _iterator3[_i3++];
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} else {
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_i3 = _iterator3.next();
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if (_i3.done) break;
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_ref3 = _i3.value;
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}
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var value = _ref3;
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var string = prefix(value.name, value.prefixes);
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if (values.indexOf(string) === -1) {
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values += string;
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}
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}
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}
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if (props !== '') {
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out += '\nProperties:\n' + props;
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}
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if (values !== '') {
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out += '\nValues:\n' + values;
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}
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if (atrules === '' && selectors === '' && props === '' && values === '') {
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out += '\nAwesome! Your browsers don\'t require any vendor prefixes.' + '\nNow you can remove Autoprefixer from build steps.';
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}
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return out;
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};
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