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website/node_modules/npm/lib/install/node.js

@@ -0,0 +1,77 @@
+'use strict'
+
+var defaultTemplate = {
+  package: {
+    version: '',
+    dependencies: {},
+    devDependencies: {},
+    optionalDependencies: {}
+  },
+  loaded: false,
+  children: [],
+  requiredBy: [],
+  requires: [],
+  missingDeps: {},
+  missingDevDeps: {},
+  phantomChildren: {},
+  path: null,
+  realpath: null,
+  location: null,
+  userRequired: false,
+  save: false,
+  saveSpec: null,
+  isTop: false,
+  fromBundle: false
+}
+
+function isLink (node) {
+  return node && node.isLink
+}
+function isInLink (node) {
+  return node && (node.isInLink || node.isLink)
+}
+
+var create = exports.create = function (node, template, isNotTop) {
+  if (!template) template = defaultTemplate
+  Object.keys(template).forEach(function (key) {
+    if (template[key] != null && typeof template[key] === 'object' && !(template[key] instanceof Array)) {
+      if (!node[key]) node[key] = {}
+      return create(node[key], template[key], true)
+    }
+    if (node[key] != null) return
+    node[key] = template[key]
+  })
+  if (!isNotTop) {
+    // isLink is true for the symlink and everything inside it.
+    // by contrast, isInLink is true for only the things inside a link
+    if (node.isLink == null) node.isLink = isLink(node.parent)
+    if (node.isInLink == null) node.isInLink = isInLink(node.parent)
+    if (node.fromBundle == null) {
+      node.fromBundle = false
+    }
+  }
+  return node
+}
+
+exports.reset = function (node) {
+  reset(node, new Set())
+}
+
+function reset (node, seen) {
+  if (seen.has(node)) return
+  seen.add(node)
+  var child = create(node)
+
+  // FIXME: cleaning up after read-package-json's mess =(
+  if (child.package._id === '@') delete child.package._id
+
+  child.isTop = false
+  child.requiredBy = []
+  child.requires = []
+  child.missingDeps = {}
+  child.missingDevDeps = {}
+  child.phantomChildren = {}
+  child.location = null
+
+  child.children.forEach(function (child) { reset(child, seen) })
+}