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var childProcess = require('child_process')
var escalade = require('escalade/sync')
var pico = require('picocolors')
var path = require('path')
var fs = require('fs')
var BrowserslistError = require('./error')
function detectLockfile() {
var packageDir = escalade('.', function (dir, names) {
return names.indexOf('package.json') !== -1 ? dir : ''
})
if (!packageDir) {
throw new BrowserslistError(
'Cannot find package.json. ' +
'Is this the right directory to run `npx browserslist --update-db` in?'
)
}
var lockfileNpm = path.join(packageDir, 'package-lock.json')
var lockfileShrinkwrap = path.join(packageDir, 'npm-shrinkwrap.json')
var lockfileYarn = path.join(packageDir, 'yarn.lock')
var lockfilePnpm = path.join(packageDir, 'pnpm-lock.yaml')
if (fs.existsSync(lockfilePnpm)) {
return { mode: 'pnpm', file: lockfilePnpm }
} else if (fs.existsSync(lockfileNpm)) {
return { mode: 'npm', file: lockfileNpm }
} else if (fs.existsSync(lockfileYarn)) {
var lock = { mode: 'yarn', file: lockfileYarn }
lock.content = fs.readFileSync(lock.file).toString()
lock.version = /# yarn lockfile v1/.test(lock.content) ? 1 : 2
return lock
} else if (fs.existsSync(lockfileShrinkwrap)) {
return { mode: 'npm', file: lockfileShrinkwrap }
}
throw new BrowserslistError(
'No lockfile found. Run "npm install", "yarn install" or "pnpm install"'
)
}
function getLatestInfo(lock) {
if (lock.mode === 'yarn') {
if (lock.version === 1) {
return JSON.parse(
childProcess.execSync('yarn info caniuse-lite --json').toString()
).data
} else {
return JSON.parse(
childProcess.execSync('yarn npm info caniuse-lite --json').toString()
)
}
}
return JSON.parse(
childProcess.execSync('npm show caniuse-lite --json').toString()
)
}
function getBrowsersList() {
return childProcess
.execSync('npx browserslist')
.toString()
.trim()
.split('\n')
.map(function (line) {
return line.trim().split(' ')
})
.reduce(function (result, entry) {
if (!result[entry[0]]) {
result[entry[0]] = []
}
result[entry[0]].push(entry[1])
return result
}, {})
}
function diffBrowsersLists(old, current) {
var browsers = Object.keys(old).concat(
Object.keys(current).filter(function (browser) {
return old[browser] === undefined
})
)
return browsers
.map(function (browser) {
var oldVersions = old[browser] || []
var currentVersions = current[browser] || []
var intersection = oldVersions.filter(function (version) {
return currentVersions.indexOf(version) !== -1
})
var addedVersions = currentVersions.filter(function (version) {
return intersection.indexOf(version) === -1
})
var removedVersions = oldVersions.filter(function (version) {
return intersection.indexOf(version) === -1
})
return removedVersions
.map(function (version) {
return pico.red('- ' + browser + ' ' + version)
})
.concat(
addedVersions.map(function (version) {
return pico.green('+ ' + browser + ' ' + version)
})
)
})
.reduce(function (result, array) {
return result.concat(array)
}, [])
.join('\n')
}
function updateNpmLockfile(lock, latest) {
var metadata = { latest: latest, versions: [] }
var content = deletePackage(JSON.parse(lock.content), metadata)
metadata.content = JSON.stringify(content, null, ' ')
return metadata
}
function deletePackage(node, metadata) {
if (node.dependencies) {
if (node.dependencies['caniuse-lite']) {
var version = node.dependencies['caniuse-lite'].version
metadata.versions[version] = true
delete node.dependencies['caniuse-lite']
}
for (var i in node.dependencies) {
node.dependencies[i] = deletePackage(node.dependencies[i], metadata)
}
}
return node
}
var yarnVersionRe = /version "(.*?)"/
function updateYarnLockfile(lock, latest) {
var blocks = lock.content.split(/(\n{2,})/).map(function (block) {
return block.split('\n')
})
var versions = {}
blocks.forEach(function (lines) {
if (lines[0].indexOf('caniuse-lite@') !== -1) {
var match = yarnVersionRe.exec(lines[1])
versions[match[1]] = true
if (match[1] !== latest.version) {
lines[1] = lines[1].replace(
/version "[^"]+"/,
'version "' + latest.version + '"'
)
lines[2] = lines[2].replace(
/resolved "[^"]+"/,
'resolved "' + latest.dist.tarball + '"'
)
if (lines.length === 4) {
lines[3] = latest.dist.integrity
? lines[3].replace(
/integrity .+/,
'integrity ' + latest.dist.integrity
)
: ''
}
}
}
})
var content = blocks
.map(function (lines) {
return lines.join('\n')
})
.join('')
return { content: content, versions: versions }
}
function updateLockfile(lock, latest) {
if (!lock.content) lock.content = fs.readFileSync(lock.file).toString()
if (lock.mode === 'yarn') {
return updateYarnLockfile(lock, latest)
} else {
return updateNpmLockfile(lock, latest)
}
}
function updatePackageManually(print, lock, latest) {
var lockfileData = updateLockfile(lock, latest)
var caniuseVersions = Object.keys(lockfileData.versions).sort()
if (caniuseVersions.length === 1 && caniuseVersions[0] === latest.version) {
print(
'Installed version: ' +
pico.bold(pico.green(latest.version)) +
'\n' +
pico.bold(pico.green('caniuse-lite is up to date')) +
'\n'
)
return
}
if (caniuseVersions.length === 0) {
caniuseVersions[0] = 'none'
}
print(
'Installed version' +
(caniuseVersions.length === 1 ? ': ' : 's: ') +
pico.bold(pico.red(caniuseVersions.join(', '))) +
'\n' +
'Removing old caniuse-lite from lock file\n'
)
fs.writeFileSync(lock.file, lockfileData.content)
var install = lock.mode === 'yarn' ? 'yarn add -W' : lock.mode + ' install'
print(
'Installing new caniuse-lite version\n' +
pico.yellow('$ ' + install + ' caniuse-lite') +
'\n'
)
try {
childProcess.execSync(install + ' caniuse-lite')
} catch (e) /* c8 ignore start */ {
print(
pico.red(
'\n' +
e.stack +
'\n\n' +
'Problem with `' +
install +
' caniuse-lite` call. ' +
'Run it manually.\n'
)
)
process.exit(1)
} /* c8 ignore end */
var del = lock.mode === 'yarn' ? 'yarn remove -W' : lock.mode + ' uninstall'
print(
'Cleaning package.json dependencies from caniuse-lite\n' +
pico.yellow('$ ' + del + ' caniuse-lite') +
'\n'
)
childProcess.execSync(del + ' caniuse-lite')
}
function updateWith(print, cmd) {
print('Updating caniuse-lite version\n' + pico.yellow('$ ' + cmd) + '\n')
try {
childProcess.execSync(cmd)
} catch (e) /* c8 ignore start */ {
print(pico.red(e.stdout.toString()))
print(
pico.red(
'\n' +
e.stack +
'\n\n' +
'Problem with `' +
cmd +
'` call. ' +
'Run it manually.\n'
)
)
process.exit(1)
} /* c8 ignore end */
}
module.exports = function updateDB(print) {
var lock = detectLockfile()
var latest = getLatestInfo(lock)
var browsersListRetrievalError
var oldBrowsersList
try {
oldBrowsersList = getBrowsersList()
} catch (e) {
browsersListRetrievalError = e
}
print('Latest version: ' + pico.bold(pico.green(latest.version)) + '\n')
if (lock.mode === 'yarn' && lock.version !== 1) {
updateWith(print, 'yarn up -R caniuse-lite')
} else if (lock.mode === 'pnpm') {
updateWith(print, 'pnpm up caniuse-lite')
} else {
updatePackageManually(print, lock, latest)
}
print('caniuse-lite has been successfully updated\n')
var currentBrowsersList
if (!browsersListRetrievalError) {
try {
currentBrowsersList = getBrowsersList()
} catch (e) /* c8 ignore start */ {
browsersListRetrievalError = e
} /* c8 ignore end */
}
if (browsersListRetrievalError) {
print(
pico.red(
'\n' +
browsersListRetrievalError.stack +
'\n\n' +
'Problem with browser list retrieval.\n' +
'Target browser changes won’t be shown.\n'
)
)
} else {
var targetBrowserChanges = diffBrowsersLists(
oldBrowsersList,
currentBrowsersList
)
if (targetBrowserChanges) {
print('\nTarget browser changes:\n')
print(targetBrowserChanges + '\n')
} else {
print('\n' + pico.green('No target browser changes') + '\n')
}
}
}