AlkantarClanX12
Current Path : /proc/thread-self/root/opt/alt/alt-nodejs6/root/lib/node_modules/npm/lib/install/ |
Current File : //proc/thread-self/root/opt/alt/alt-nodejs6/root/lib/node_modules/npm/lib/install/is-extraneous.js |
'use strict' module.exports = isExtraneous function isExtraneous (tree) { var result = !isNotExtraneous(tree) return result } function isNotRequired (tree) { return tree.requiredBy && tree.requiredBy.length === 0 } function parentHasNoPjson (tree) { return tree.parent && tree.parent.isTop && tree.parent.error } function topHasNoPjson (tree) { var top = tree while (!top.isTop) top = top.parent return top.error } function isNotExtraneous (tree, isCycle) { if (!isCycle) isCycle = {} if (tree.isTop || tree.userRequired) { return true } else if (isNotRequired(tree) && parentHasNoPjson(tree)) { return true } else if (isCycle[tree.path]) { return topHasNoPjson(tree) } else { isCycle[tree.path] = true return tree.requiredBy && tree.requiredBy.some(function (node) { return isNotExtraneous(node, Object.create(isCycle)) }) } }