Initial commit

node_modules/browserslist/cli.js

@@ -0,0 +1,95 @@
+#!/usr/bin/env node
+
+var browserslist = require('./');
+var pkg          = require('./package.json');
+var args         = process.argv.slice(2);
+
+function isArg(arg) {
+    return args.some(function (str) {
+        return str === arg || str.indexOf(arg + '=') === 0;
+    });
+}
+
+function getArgValue(arg) {
+    var found = args.filter(function (str) {
+        return str.indexOf(arg + '=') === 0;
+    })[0];
+    var value = found && found.split('=')[1];
+    return value && value.replace(/^['"]|['"]$/g, '');
+}
+
+function error(msg) {
+    process.stderr.write(pkg.name + ': ' + msg + '\n');
+    process.exit(1);
+}
+
+function query(queries, opts) {
+    try {
+        return browserslist(queries, opts);
+    } catch (e) {
+        if ( e.name === 'BrowserslistError' ) {
+            return error(e.message);
+        } else {
+            throw e;
+        }
+    }
+}
+
+if ( args.length === 0 || isArg('--help') || isArg('-h') ) {
+    process.stdout.write([
+        pkg.description,
+        '',
+        'Usage:',
+        '  ' + pkg.name + ' "QUERIES"',
+        '  ' + pkg.name + ' --coverage "QUERIES"',
+        '  ' + pkg.name + ' --coverage=US "QUERIES"',
+        '  ' + pkg.name + ' --config=browserslist "path/to/browserlist/file"',
+        '  ' + pkg.name + ' --env="environment name defined in config"',
+        '  ' + pkg.name + ' --stats="path/to/browserlist/stats/file"'
+    ].join('\n') + '\n');
+
+} else if ( isArg('--version') || isArg('-v') ) {
+    process.stdout.write(pkg.name + ' ' + pkg.version + '\n');
+
+} else if ( isArg('--coverage') || isArg('-c') ) {
+    var browsers = args.find(function (i) {
+        return i[0] !== '-';
+    });
+    if ( !browsers ) error('Define a browsers query to get coverage');
+
+    var country = getArgValue('--coverage') || getArgValue('-c');
+    var result  = browserslist.coverage(query(browsers), country);
+    var round   = Math.round(result * 100) / 100.0;
+
+    var end = 'globally';
+    if (country && country !== 'global') {
+        end = 'in the ' + country.toUpperCase();
+    }
+
+    process.stdout.write(
+        'These browsers account for ' + round + '% of all users ' + end + '\n');
+
+} else if ( args.length === 1 && args[0][0] !== '-' ) {
+    query(args[0]).forEach(function (browser) {
+        process.stdout.write(browser + '\n');
+    });
+
+} else if (isArg('--config') || isArg('-b')) {
+    var opts = {
+        config: getArgValue('--config') || getArgValue('-b')
+    };
+
+    if (isArg('--env') || isArg('-e')) {
+        opts.env = getArgValue('--env') || getArgValue('-e');
+    }
+
+    if (isArg('--stats') || isArg('-s')) {
+        opts.stats = getArgValue('--stats') || getArgValue('-s');
+    }
+
+    query(null, opts).forEach(function (browser) {
+        process.stdout.write(browser + '\n');
+    });
+} else {
+    error('Unknown arguments. Use --help to pick right one.');
+}