c0ef0d5a66
PR-URL: https://github.com/nodejs/node/pull/41621 Reviewed-By: Ruy Adorno <ruyadorno@github.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
20 lines
534 B
JavaScript
20 lines
534 B
JavaScript
// we know it's global and/or not top, so the path has to be
|
|
// {prefix}/node_modules/{name}. Can't rely on pkg.name, because
|
|
// it might be installed as an alias.
|
|
|
|
const { dirname, basename } = require('path')
|
|
// this gets called a lot and can't change, so memoize it
|
|
const memo = new Map()
|
|
module.exports = path => {
|
|
if (memo.has(path)) {
|
|
return memo.get(path)
|
|
}
|
|
|
|
const scopeOrNm = dirname(path)
|
|
const nm = basename(scopeOrNm) === 'node_modules' ? scopeOrNm
|
|
: dirname(scopeOrNm)
|
|
|
|
memo.set(path, nm)
|
|
return nm
|
|
}
|