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