• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1#!/usr/bin/env node
2
3const cli = require('../lib/cli.js')
4
5// run the resulting command as `npm exec ...args`
6process.argv[1] = require.resolve('./npm-cli.js')
7process.argv.splice(2, 0, 'exec')
8
9// TODO: remove the affordances for removed items in npm v9
10const removedSwitches = new Set([
11  'always-spawn',
12  'ignore-existing',
13  'shell-auto-fallback',
14])
15
16const removedOpts = new Set([
17  'npm',
18  'node-arg',
19  'n',
20])
21
22const removed = new Set([
23  ...removedSwitches,
24  ...removedOpts,
25])
26
27const { definitions, shorthands } = require('@npmcli/config/lib/definitions')
28const npmSwitches = Object.entries(definitions)
29  .filter(([key, { type }]) => type === Boolean ||
30    (Array.isArray(type) && type.includes(Boolean)))
31  .map(([key]) => key)
32
33// things that don't take a value
34const switches = new Set([
35  ...removedSwitches,
36  ...npmSwitches,
37  'no-install',
38  'quiet',
39  'q',
40  'version',
41  'v',
42  'help',
43  'h',
44])
45
46// things that do take a value
47const opts = new Set([
48  ...removedOpts,
49  'package',
50  'p',
51  'cache',
52  'userconfig',
53  'call',
54  'c',
55  'shell',
56  'npm',
57  'node-arg',
58  'n',
59])
60
61// break out of loop when we find a positional argument or --
62// If we find a positional arg, we shove -- in front of it, and
63// let the normal npm cli handle the rest.
64let i
65let sawRemovedFlags = false
66for (i = 3; i < process.argv.length; i++) {
67  const arg = process.argv[i]
68  if (arg === '--') {
69    break
70  } else if (/^-/.test(arg)) {
71    const [key, ...v] = arg.replace(/^-+/, '').split('=')
72
73    switch (key) {
74      case 'p':
75        process.argv[i] = ['--package', ...v].join('=')
76        break
77
78      case 'shell':
79        process.argv[i] = ['--script-shell', ...v].join('=')
80        break
81
82      case 'no-install':
83        process.argv[i] = '--yes=false'
84        break
85
86      default:
87        // resolve shorthands and run again
88        if (shorthands[key] && !removed.has(key)) {
89          const a = [...shorthands[key]]
90          if (v.length) {
91            a.push(v.join('='))
92          }
93          process.argv.splice(i, 1, ...a)
94          i--
95          continue
96        }
97        break
98    }
99
100    if (removed.has(key)) {
101      // eslint-disable-next-line no-console
102      console.error(`npx: the --${key} argument has been removed.`)
103      sawRemovedFlags = true
104      process.argv.splice(i, 1)
105      i--
106    }
107
108    if (v.length === 0 && !switches.has(key) &&
109        (opts.has(key) || !/^-/.test(process.argv[i + 1]))) {
110      // value will be next argument, skip over it.
111      if (removed.has(key)) {
112        // also remove the value for the cut key.
113        process.argv.splice(i + 1, 1)
114      } else {
115        i++
116      }
117    }
118  } else {
119    // found a positional arg, put -- in front of it, and we're done
120    process.argv.splice(i, 0, '--')
121    break
122  }
123}
124
125if (sawRemovedFlags) {
126  // eslint-disable-next-line no-console
127  console.error('See `npm help exec` for more information')
128}
129
130cli(process)
131