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
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// {prefix}/node_modules/{name}. Can't rely on pkg.name, because
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// it might be installed as an alias.
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const { dirname, basename } = require('path')
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// this gets called a lot and can't change, so memoize it
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const memo = new Map()
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module.exports = path => {
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if (memo.has(path)) {
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return memo.get(path)
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}
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const scopeOrNm = dirname(path)
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const nm = basename(scopeOrNm) === 'node_modules' ? scopeOrNm
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: dirname(scopeOrNm)
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memo.set(path, nm)
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return nm
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}
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