| "use strict"; |
| |
| var browserslist = require('browserslist'); |
| |
| var postcss = require('postcss'); |
| |
| var agents = require('caniuse-lite').agents; |
| |
| var chalk = require('chalk'); |
| |
| var Browsers = require('./browsers'); |
| |
| var Prefixes = require('./prefixes'); |
| |
| var data = require('../data/prefixes'); |
| |
| var info = require('./info'); |
| |
| var WARNING = '\n' + ' Replace Autoprefixer `browsers` option to Browserslist config.\n' + ' Use `browserslist` key in `package.json` or `.browserslistrc` file.\n' + '\n' + ' Using `browsers` option cause some error. Browserslist config \n' + ' can be used for Babel, Autoprefixer, postcss-normalize and other tools.\n' + '\n' + ' If you really need to use option, rename it to `overrideBrowserslist`.\n' + '\n' + ' Learn more at:\n' + ' https://github.com/browserslist/browserslist#readme\n' + ' https://twitter.com/browserslist\n' + '\n'; |
| |
| function isPlainObject(obj) { |
| return Object.prototype.toString.apply(obj) === '[object Object]'; |
| } |
| |
| var cache = {}; |
| |
| function timeCapsule(result, prefixes) { |
| if (prefixes.browsers.selected.length === 0) { |
| return; |
| } |
| |
| if (prefixes.add.selectors.length > 0) { |
| return; |
| } |
| |
| if (Object.keys(prefixes.add).length > 2) { |
| return; |
| } |
| /* istanbul ignore next */ |
| |
| |
| result.warn('Greetings, time traveller. ' + 'We are in the golden age of prefix-less CSS, ' + 'where Autoprefixer is no longer needed for your stylesheet.'); |
| } |
| |
| module.exports = postcss.plugin('autoprefixer', function () { |
| for (var _len = arguments.length, reqs = new Array(_len), _key = 0; _key < _len; _key++) { |
| reqs[_key] = arguments[_key]; |
| } |
| |
| var options; |
| |
| if (reqs.length === 1 && isPlainObject(reqs[0])) { |
| options = reqs[0]; |
| reqs = undefined; |
| } else if (reqs.length === 0 || reqs.length === 1 && !reqs[0]) { |
| reqs = undefined; |
| } else if (reqs.length <= 2 && (reqs[0] instanceof Array || !reqs[0])) { |
| options = reqs[1]; |
| reqs = reqs[0]; |
| } else if (typeof reqs[reqs.length - 1] === 'object') { |
| options = reqs.pop(); |
| } |
| |
| if (!options) { |
| options = {}; |
| } |
| |
| if (options.browser) { |
| throw new Error('Change `browser` option to `overrideBrowserslist` in Autoprefixer'); |
| } else if (options.browserslist) { |
| throw new Error('Change `browserslist` option to `overrideBrowserslist` in Autoprefixer'); |
| } |
| |
| if (options.overrideBrowserslist) { |
| reqs = options.overrideBrowserslist; |
| } else if (options.browsers) { |
| if (typeof console !== 'undefined' && console.warn) { |
| if (chalk && chalk.red) { |
| console.warn(chalk.red(WARNING.replace(/`[^`]+`/g, function (i) { |
| return chalk.yellow(i.slice(1, -1)); |
| }))); |
| } else { |
| console.warn(WARNING); |
| } |
| } |
| |
| reqs = options.browsers; |
| } |
| |
| if (typeof options.grid === 'undefined') { |
| options.grid = false; |
| } |
| |
| var brwlstOpts = { |
| ignoreUnknownVersions: options.ignoreUnknownVersions, |
| stats: options.stats |
| }; |
| |
| function loadPrefixes(opts) { |
| var d = module.exports.data; |
| var browsers = new Browsers(d.browsers, reqs, opts, brwlstOpts); |
| var key = browsers.selected.join(', ') + JSON.stringify(options); |
| |
| if (!cache[key]) { |
| cache[key] = new Prefixes(d.prefixes, browsers, options); |
| } |
| |
| return cache[key]; |
| } |
| |
| function plugin(css, result) { |
| var prefixes = loadPrefixes({ |
| from: css.source && css.source.input.file, |
| env: options.env |
| }); |
| timeCapsule(result, prefixes); |
| |
| if (options.remove !== false) { |
| prefixes.processor.remove(css, result); |
| } |
| |
| if (options.add !== false) { |
| prefixes.processor.add(css, result); |
| } |
| } |
| |
| plugin.options = options; |
| plugin.browsers = reqs; |
| |
| plugin.info = function (opts) { |
| opts = opts || {}; |
| opts.from = opts.from || process.cwd(); |
| return info(loadPrefixes(opts)); |
| }; |
| |
| return plugin; |
| }); |
| /** |
| * Autoprefixer data |
| */ |
| |
| module.exports.data = { |
| browsers: agents, |
| prefixes: data |
| /** |
| * Autoprefixer default browsers |
| */ |
| |
| }; |
| module.exports.defaults = browserslist.defaults; |
| /** |
| * Inspect with default Autoprefixer |
| */ |
| |
| module.exports.info = function () { |
| return module.exports().info(); |
| }; |