npm/lib/cli.js

80 lines
2.6 KiB
JavaScript

// Separated out for easier unit testing
module.exports = async process => {
// set it here so that regardless of what happens later, we don't
// leak any private CLI configs to other programs
process.title = 'npm'
// We used to differentiate between known broken and unsupported
// versions of node and attempt to only log unsupported but still run.
// After we dropped node 10 support, we can use new features
// (like static, private, etc) which will only give vague syntax errors,
// so now both broken and unsupported use console, but only broken
// will process.exit. It is important to now perform *both* of these
// checks as early as possible so the user gets the error message.
const { checkForBrokenNode, checkForUnsupportedNode } = require('./utils/unsupported.js')
checkForBrokenNode()
checkForUnsupportedNode()
const exitHandler = require('./utils/exit-handler.js')
process.on('uncaughtException', exitHandler)
process.on('unhandledRejection', exitHandler)
const Npm = require('./npm.js')
const npm = new Npm()
exitHandler.setNpm(npm)
// if npm is called as "npmg" or "npm_g", then
// run in global mode.
if (process.argv[1][process.argv[1].length - 1] === 'g') {
process.argv.splice(1, 1, 'npm', '-g')
}
const log = require('./utils/log-shim.js')
const replaceInfo = require('./utils/replace-info.js')
log.verbose('cli', replaceInfo(process.argv))
log.info('using', 'npm@%s', npm.version)
log.info('using', 'node@%s', process.version)
const updateNotifier = require('./utils/update-notifier.js')
let cmd
// now actually fire up npm and run the command.
// this is how to use npm programmatically:
try {
await npm.load()
if (npm.config.get('version', 'cli')) {
npm.output(npm.version)
return exitHandler()
}
// npm --versions=cli
if (npm.config.get('versions', 'cli')) {
npm.argv = ['version']
npm.config.set('usage', false, 'cli')
}
updateNotifier(npm)
cmd = npm.argv.shift()
if (!cmd) {
npm.output(await npm.usage)
process.exitCode = 1
return exitHandler()
}
await npm.exec(cmd, npm.argv)
return exitHandler()
} catch (err) {
if (err.code === 'EUNKNOWNCOMMAND') {
const didYouMean = require('./utils/did-you-mean.js')
const suggestions = await didYouMean(npm, npm.localPrefix, cmd)
npm.output(`Unknown command: "${cmd}"${suggestions}\n`)
npm.output('To see a list of supported npm commands, run:\n npm help')
process.exitCode = 1
return exitHandler()
}
return exitHandler(err)
}
}