'use strict'
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const fs = require('graceful-fs')
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const log = require('npmlog')
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function list (gyp, args, callback) {
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var devDir = gyp.devDir
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log.verbose('list', 'using node-gyp dir:', devDir)
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fs.readdir(devDir, onreaddir)
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function onreaddir (err, versions) {
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if (err && err.code !== 'ENOENT') {
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return callback(err)
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}
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if (Array.isArray(versions)) {
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versions = versions.filter(function (v) { return v !== 'current' })
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} else {
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versions = []
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}
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callback(null, versions)
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}
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}
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module.exports = list
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module.exports.usage = 'Prints a listing of the currently installed node development files'
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