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-rwxr-xr-xnode_modules/browserslist/cli.js135
1 files changed, 135 insertions, 0 deletions
diff --git a/node_modules/browserslist/cli.js b/node_modules/browserslist/cli.js
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+++ b/node_modules/browserslist/cli.js
@@ -0,0 +1,135 @@
+#!/usr/bin/env node
+
+var fs = require('fs')
+
+var browserslist = require('./')
+var pkg = require('./package.json')
+var args = process.argv.slice(2)
+
+var USAGE = 'Usage:\n' +
+ ' ' + pkg.name + '\n' +
+ ' ' + pkg.name + ' "QUERIES"\n' +
+ ' ' + pkg.name + ' --json "QUERIES"\n' +
+ ' ' + pkg.name + ' --config="path/to/browserlist/file"\n' +
+ ' ' + pkg.name + ' --coverage "QUERIES"\n' +
+ ' ' + pkg.name + ' --coverage=US "QUERIES"\n' +
+ ' ' + pkg.name + ' --coverage=US,RU,global "QUERIES"\n' +
+ ' ' + pkg.name + ' --env="environment name defined in config"\n' +
+ ' ' + pkg.name + ' --stats="path/to/browserlist/stats/file"'
+
+function isArg (arg) {
+ return args.some(function (str) {
+ return str === arg || str.indexOf(arg + '=') === 0
+ })
+}
+
+function error (msg) {
+ process.stderr.write(pkg.name + ': ' + msg + '\n')
+ process.exit(1)
+}
+
+if (isArg('--help') || isArg('-h')) {
+ process.stdout.write(pkg.description + '.\n\n' + USAGE + '\n')
+} else if (isArg('--version') || isArg('-v')) {
+ process.stdout.write(pkg.name + ' ' + pkg.version + '\n')
+} else {
+ var mode = 'browsers'
+ var opts = { }
+ var queries
+ var areas
+
+ for (var i = 0; i < args.length; i++) {
+ if (args[i][0] !== '-') {
+ queries = args[i].replace(/^["']|["']$/g, '')
+ continue
+ }
+
+ var arg = args[i].split('=')
+ var name = arg[0]
+ var value = arg[1]
+
+ if (value) value = value.replace(/^["']|["']$/g, '')
+
+ if (name === '--config' || name === '-b') {
+ opts.config = value
+ } else if (name === '--env' || name === '-e') {
+ opts.env = value
+ } else if (name === '--stats' || name === '-s') {
+ opts.stats = value
+ } else if (name === '--coverage' || name === '-c') {
+ if (mode !== 'json') mode = 'coverage'
+ if (value) {
+ areas = value.split(',')
+ } else {
+ areas = ['global']
+ }
+ } else if (name === '--json') {
+ mode = 'json'
+ } else {
+ error('Unknown arguments ' + args[i] + '.\n\n' + USAGE)
+ }
+ }
+
+ var browsers
+ try {
+ browsers = browserslist(queries, opts)
+ } catch (e) {
+ if (e.name === 'BrowserslistError') {
+ error(e.message)
+ } else {
+ throw e
+ }
+ }
+
+ var coverage
+ if (mode === 'browsers') {
+ browsers.forEach(function (browser) {
+ process.stdout.write(browser + '\n')
+ })
+ } else if (areas) {
+ coverage = areas.map(function (area) {
+ var stats
+ if (area !== 'global') {
+ stats = area
+ } else if (opts.stats) {
+ stats = JSON.parse(fs.readFileSync(opts.stats))
+ }
+ var result = browserslist.coverage(browsers, stats)
+ var round = Math.round(result * 100) / 100.0
+
+ return [area, round]
+ })
+
+ if (mode === 'coverage') {
+ var prefix = 'These browsers account for '
+ process.stdout.write(prefix)
+ coverage.forEach(function (data, index) {
+ var area = data[0]
+ var round = data[1]
+ var end = 'globally'
+ if (area && area !== 'global') {
+ end = 'in the ' + area.toUpperCase()
+ } else if (opts.stats) {
+ end = 'in custom statistics'
+ }
+
+ if (index !== 0) {
+ process.stdout.write(prefix.replace(/./g, ' '))
+ }
+
+ process.stdout.write(round + '% of all users ' + end + '\n')
+ })
+ }
+ }
+
+ if (mode === 'json') {
+ var data = { browsers: browsers }
+ if (coverage) {
+ data.coverage = coverage.reduce(function (object, j) {
+ object[j[0]] = j[1]
+ return object
+ }, { })
+ }
+ process.stdout.write(JSON.stringify(data, null, ' ') + '\n')
+ }
+}