codekingpro/portable-devtools

1// This is separate to indicate that it should contain code we expect to work in all versions of node >= 6.
2// 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.
3// This file is linted with ecmaVersion=6 so we don't use invalid syntax, which is set in the .eslintrc.local.json file
4
5const { engines: { node: engines }, version } = require('../../package.json')
6const npm = `v${version}`
7
8module.exports = (process, getCli) => {
9  const node = process.version
10
11  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/.`
12
13  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/.`
14
15  // 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
16  /* istanbul ignore next */
17  const syntaxErrorHandler = (err) => {
18    if (err instanceof SyntaxError) {
19      // eslint-disable-next-line no-console
20      console.error(`${brokenMessage}\n\nERROR:`)
21      // eslint-disable-next-line no-console
22      console.error(err)
23      return process.exit(1)
24    }
25    throw err
26  }
27
28  process.on('uncaughtException', syntaxErrorHandler)
29  process.on('unhandledRejection', syntaxErrorHandler)
30
31  // require this only after setting up the error handlers
32  const cli = getCli()
33  return cli(process, {
34    node,
35    npm,
36    engines,
37    unsupportedMessage,
38    off: () => {
39      process.off('uncaughtException', syntaxErrorHandler)
40      process.off('unhandledRejection', syntaxErrorHandler)
41    },
42  })
43}
44