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Natours/starter/node_modules/node-gyp/lib/list.js

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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'