96 lines
2.4 KiB
JavaScript
96 lines
2.4 KiB
JavaScript
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/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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const browserslist = require('browserslist');
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const chalk = require('chalk');
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const os = require('os');
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const prompts = require('prompts');
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const pkgUp = require('pkg-up');
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const fs = require('fs');
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const defaultBrowsers = {
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production: ['>0.2%', 'not dead', 'not op_mini all'],
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development: [
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'last 1 chrome version',
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'last 1 firefox version',
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'last 1 safari version',
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],
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};
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function shouldSetBrowsers(isInteractive) {
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if (!isInteractive) {
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return Promise.resolve(true);
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}
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const question = {
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type: 'confirm',
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name: 'shouldSetBrowsers',
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message:
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chalk.yellow("We're unable to detect target browsers.") +
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`\n\nWould you like to add the defaults to your ${chalk.bold(
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'package.json'
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)}?`,
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initial: true,
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};
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return prompts(question).then(answer => answer.shouldSetBrowsers);
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}
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function checkBrowsers(dir, isInteractive, retry = true) {
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const current = browserslist.loadConfig({ path: dir });
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if (current != null) {
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return Promise.resolve(current);
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}
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if (!retry) {
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return Promise.reject(
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new Error(
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chalk.red(
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'As of react-scripts >=2 you must specify targeted browsers.'
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) +
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os.EOL +
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`Please add a ${chalk.underline(
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'browserslist'
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)} key to your ${chalk.bold('package.json')}.`
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)
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);
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}
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return shouldSetBrowsers(isInteractive).then(shouldSetBrowsers => {
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if (!shouldSetBrowsers) {
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return checkBrowsers(dir, isInteractive, false);
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}
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return (
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pkgUp({ cwd: dir })
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.then(filePath => {
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if (filePath == null) {
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return Promise.reject();
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}
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const pkg = JSON.parse(fs.readFileSync(filePath));
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pkg['browserslist'] = defaultBrowsers;
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fs.writeFileSync(filePath, JSON.stringify(pkg, null, 2) + os.EOL);
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browserslist.clearCaches();
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console.log();
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console.log(
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`${chalk.green('Set target browsers:')} ${chalk.cyan(
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defaultBrowsers.join(', ')
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)}`
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);
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console.log();
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})
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// Swallow any error
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.catch(() => {})
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.then(() => checkBrowsers(dir, isInteractive, false))
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);
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});
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}
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module.exports = { defaultBrowsers, checkBrowsers };
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