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Filename :
validate-engines.js
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// This is separate to indicate that it should contain code we expect to work in // all versions of node >= 6. This is a best effort to catch syntax errors to // give users a good error message if they are using a node version that doesn't // allow syntax we are using such as private properties, etc. This file is // linted with ecmaVersion=6 so we don't use invalid syntax, which is set in the // .eslintrc.local.json file const { engines: { node: engines }, version } = require('../../package.json') const npm = `v${version}` module.exports = (process, getCli) => { const node = process.version /* eslint-disable-next-line max-len */ const unsupportedMessage = `npm ${npm} does not support Node.js ${node}. This version of npm supports the following node versions: \`${engines}\`. You can find the latest version at https://nodejs.org/.` /* eslint-disable-next-line max-len */ const brokenMessage = `ERROR: npm ${npm} is known not to run on Node.js ${node}. This version of npm supports the following node versions: \`${engines}\`. You can find the latest version at https://nodejs.org/.` // coverage ignored because this is only hit in very unsupported node versions // and it's a best effort attempt to show something nice in those cases /* istanbul ignore next */ const syntaxErrorHandler = (err) => { if (err instanceof SyntaxError) { // eslint-disable-next-line no-console console.error(`${brokenMessage}\n\nERROR:`) // eslint-disable-next-line no-console console.error(err) return process.exit(1) } throw err } process.on('uncaughtException', syntaxErrorHandler) process.on('unhandledRejection', syntaxErrorHandler) // require this only after setting up the error handlers const cli = getCli() return cli(process, { node, npm, engines, unsupportedMessage, off: () => { process.off('uncaughtException', syntaxErrorHandler) process.off('unhandledRejection', syntaxErrorHandler) }, }) }