124 lines
3.1 KiB
JavaScript
124 lines
3.1 KiB
JavaScript
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let 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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const NAMES = {
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ie: 'IE',
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ie_mob: 'IE Mobile',
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ios_saf: 'iOS Safari',
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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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and_qq: 'QQ Browser',
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kaios: 'KaiOS Browser',
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baidu: 'Baidu Browser',
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samsung: 'Samsung Internet'
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}
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function prefix (name, prefixes, note) {
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let out = ` ${name}`
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if (note) out += ' *'
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out += ': '
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out += prefixes.map(i => i.replace(/^-(.*)-$/g, '$1')).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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let versions = {}
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for (let browser of prefixes.browsers.selected) {
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let parts = browser.split(' ')
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let name = parts[0]
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let version = parts[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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let out = 'Browsers:\n'
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for (let browser in versions) {
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let list = versions[browser]
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list = list.sort((a, b) => parseFloat(b) - parseFloat(a))
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out += ` ${browser}: ${list.join(', ')}\n`
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}
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let coverage = browserslist.coverage(prefixes.browsers.selected)
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let round = Math.round(coverage * 100) / 100.0
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out += `\nThese browsers account for ${round}% of all users globally\n`
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let atrules = []
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for (let name in prefixes.add) {
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let data = prefixes.add[name]
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if (name[0] === '@' && data.prefixes) {
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atrules.push(prefix(name, data.prefixes))
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}
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}
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if (atrules.length > 0) {
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out += `\nAt-Rules:\n${atrules.sort().join('')}`
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}
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let selectors = []
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for (let selector of prefixes.add.selectors) {
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if (selector.prefixes) {
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selectors.push(prefix(selector.name, selector.prefixes))
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}
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}
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if (selectors.length > 0) {
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out += `\nSelectors:\n${selectors.sort().join('')}`
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}
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let values = []
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let props = []
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let hadGrid = false
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for (let name in prefixes.add) {
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let data = prefixes.add[name]
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if (name[0] !== '@' && data.prefixes) {
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let grid = name.indexOf('grid-') === 0
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if (grid) hadGrid = true
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props.push(prefix(name, data.prefixes, grid))
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}
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if (!Array.isArray(data.values)) {
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continue
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}
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for (let value of data.values) {
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let grid = value.name.includes('grid')
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if (grid) hadGrid = true
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let string = prefix(value.name, value.prefixes, grid)
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if (!values.includes(string)) {
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values.push(string)
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}
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}
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}
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if (props.length > 0) {
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out += `\nProperties:\n${props.sort().join('')}`
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}
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if (values.length > 0) {
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out += `\nValues:\n${values.sort().join('')}`
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}
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if (hadGrid) {
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out += '\n* - Prefixes will be added only on grid: true option.\n'
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}
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if (!atrules.length && !selectors.length && !props.length && !values.length) {
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out +=
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"\nAwesome! Your browsers don't require any vendor prefixes." +
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'\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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