1 let childProcess = require('child_process')
2 let escalade = require('escalade/sync')
3 let pico = require('picocolors')
4 let path = require('path')
7 function BrowserslistUpdateError(message) {
8 this.name = 'BrowserslistUpdateError'
10 this.browserslist = true
11 if (Error.captureStackTrace) {
12 Error.captureStackTrace(this, BrowserslistUpdateError)
16 BrowserslistUpdateError.prototype = Error.prototype
18 /* c8 ignore next 3 */
19 function defaultPrint(str) {
20 process.stdout.write(str)
23 function detectLockfile() {
24 let packageDir = escalade('.', (dir, names) => {
25 return names.indexOf('package.json') !== -1 ? dir : ''
29 throw new BrowserslistUpdateError(
30 'Cannot find package.json. ' +
31 'Is this the right directory to run `npx update-browserslist-db` in?'
35 let lockfileNpm = path.join(packageDir, 'package-lock.json')
36 let lockfileShrinkwrap = path.join(packageDir, 'npm-shrinkwrap.json')
37 let lockfileYarn = path.join(packageDir, 'yarn.lock')
38 let lockfilePnpm = path.join(packageDir, 'pnpm-lock.yaml')
40 if (fs.existsSync(lockfilePnpm)) {
41 return { mode: 'pnpm', file: lockfilePnpm }
42 } else if (fs.existsSync(lockfileNpm)) {
43 return { mode: 'npm', file: lockfileNpm }
44 } else if (fs.existsSync(lockfileYarn)) {
45 let lock = { mode: 'yarn', file: lockfileYarn }
46 lock.content = fs.readFileSync(lock.file).toString()
47 lock.version = /# yarn lockfile v1/.test(lock.content) ? 1 : 2
49 } else if (fs.existsSync(lockfileShrinkwrap)) {
50 return { mode: 'npm', file: lockfileShrinkwrap }
52 throw new BrowserslistUpdateError(
53 'No lockfile found. Run "npm install", "yarn install" or "pnpm install"'
57 function getLatestInfo(lock) {
58 if (lock.mode === 'yarn') {
59 if (lock.version === 1) {
61 childProcess.execSync('yarn info caniuse-lite --json').toString()
65 childProcess.execSync('yarn npm info caniuse-lite --json').toString()
70 childProcess.execSync('npm show caniuse-lite --json').toString()
74 function getBrowsers() {
75 let browserslist = require('browserslist')
76 return browserslist().reduce((result, entry) => {
77 if (!result[entry[0]]) {
80 result[entry[0]].push(entry[1])
85 function diffBrowsers(old, current) {
86 let browsers = Object.keys(old).concat(
87 Object.keys(current).filter(browser => old[browser] === undefined)
91 let oldVersions = old[browser] || []
92 let currentVersions = current[browser] || []
93 let common = oldVersions.filter(v => currentVersions.includes(v))
94 let added = currentVersions.filter(v => !common.includes(v))
95 let removed = oldVersions.filter(v => !common.includes(v))
97 .map(v => pico.red('- ' + browser + ' ' + v))
98 .concat(added.map(v => pico.green('+ ' + browser + ' ' + v)))
100 .reduce((result, array) => result.concat(array), [])
104 function updateNpmLockfile(lock, latest) {
105 let metadata = { latest, versions: [] }
106 let content = deletePackage(JSON.parse(lock.content), metadata)
107 metadata.content = JSON.stringify(content, null, ' ')
111 function deletePackage(node, metadata) {
112 if (node.dependencies) {
113 if (node.dependencies['caniuse-lite']) {
114 let version = node.dependencies['caniuse-lite'].version
115 metadata.versions[version] = true
116 delete node.dependencies['caniuse-lite']
118 for (let i in node.dependencies) {
119 node.dependencies[i] = deletePackage(node.dependencies[i], metadata)
125 let yarnVersionRe = /version "(.*?)"/
127 function updateYarnLockfile(lock, latest) {
128 let blocks = lock.content.split(/(\n{2,})/).map(block => {
129 return block.split('\n')
132 blocks.forEach(lines => {
133 if (lines[0].indexOf('caniuse-lite@') !== -1) {
134 let match = yarnVersionRe.exec(lines[1])
135 versions[match[1]] = true
136 if (match[1] !== latest.version) {
137 lines[1] = lines[1].replace(
139 'version "' + latest.version + '"'
141 lines[2] = lines[2].replace(
143 'resolved "' + latest.dist.tarball + '"'
145 if (lines.length === 4) {
146 lines[3] = latest.dist.integrity
149 'integrity ' + latest.dist.integrity
156 let content = blocks.map(lines => lines.join('\n')).join('')
157 return { content, versions }
160 function updateLockfile(lock, latest) {
161 if (!lock.content) lock.content = fs.readFileSync(lock.file).toString()
163 if (lock.mode === 'yarn') {
164 return updateYarnLockfile(lock, latest)
166 return updateNpmLockfile(lock, latest)
170 function updatePackageManually(print, lock, latest) {
171 let lockfileData = updateLockfile(lock, latest)
172 let caniuseVersions = Object.keys(lockfileData.versions).sort()
173 if (caniuseVersions.length === 1 && caniuseVersions[0] === latest.version) {
175 'Installed version: ' +
176 pico.bold(pico.green(latest.version)) +
178 pico.bold(pico.green('caniuse-lite is up to date')) +
184 if (caniuseVersions.length === 0) {
185 caniuseVersions[0] = 'none'
188 'Installed version' +
189 (caniuseVersions.length === 1 ? ': ' : 's: ') +
190 pico.bold(pico.red(caniuseVersions.join(', '))) +
192 'Removing old caniuse-lite from lock file\n'
194 fs.writeFileSync(lock.file, lockfileData.content)
196 let install = lock.mode === 'yarn' ? 'yarn add -W' : lock.mode + ' install'
198 'Installing new caniuse-lite version\n' +
199 pico.yellow('$ ' + install + ' caniuse-lite') +
203 childProcess.execSync(install + ' caniuse-lite')
204 } catch (e) /* c8 ignore start */ {
212 ' caniuse-lite` call. ' +
217 } /* c8 ignore end */
219 let del = lock.mode === 'yarn' ? 'yarn remove -W' : lock.mode + ' uninstall'
221 'Cleaning package.json dependencies from caniuse-lite\n' +
222 pico.yellow('$ ' + del + ' caniuse-lite') +
225 childProcess.execSync(del + ' caniuse-lite')
228 function updateWith(print, cmd) {
229 print('Updating caniuse-lite version\n' + pico.yellow('$ ' + cmd) + '\n')
231 childProcess.execSync(cmd)
232 } catch (e) /* c8 ignore start */ {
233 print(pico.red(e.stdout.toString()))
246 } /* c8 ignore end */
249 module.exports = function updateDB(print = defaultPrint) {
250 let lock = detectLockfile()
251 let latest = getLatestInfo(lock)
256 oldList = getBrowsers()
261 print('Latest version: ' + pico.bold(pico.green(latest.version)) + '\n')
263 if (lock.mode === 'yarn' && lock.version !== 1) {
264 updateWith(print, 'yarn up -R caniuse-lite')
265 } else if (lock.mode === 'pnpm') {
266 updateWith(print, 'pnpm up caniuse-lite')
268 updatePackageManually(print, lock, latest)
271 print('caniuse-lite has been successfully updated\n')
276 newList = getBrowsers()
277 } catch (e) /* c8 ignore start */ {
279 } /* c8 ignore end */
288 'Problem with browser list retrieval.\n' +
289 'Target browser changes won’t be shown.\n'
293 let changes = diffBrowsers(oldList, newList)
295 print('\nTarget browser changes:\n')
296 print(changes + '\n')
298 print('\n' + pico.green('No target browser changes') + '\n')