Demo for query storing
Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/npm-conf/lib/util.js b/node_modules/npm-conf/lib/util.js
new file mode 100644
index 0000000..5cde7bc
--- /dev/null
+++ b/node_modules/npm-conf/lib/util.js
@@ -0,0 +1,147 @@
+'use strict';
+const fs = require('fs');
+const path = require('path');
+const types = require('./types');
+
+// https://github.com/npm/npm/blob/latest/lib/config/core.js#L409-L423
+const envReplace = str => {
+ if (typeof str !== 'string' || !str) {
+ return str;
+ }
+
+ // Replace any ${ENV} values with the appropriate environment
+ const regex = /(\\*)\$\{([^}]+)\}/g;
+
+ return str.replace(regex, (orig, esc, name) => {
+ esc = esc.length > 0 && esc.length % 2;
+
+ if (esc) {
+ return orig;
+ }
+
+ if (process.env[name] === undefined) {
+ throw new Error(`Failed to replace env in config: ${orig}`);
+ }
+
+ return process.env[name];
+ });
+};
+
+// https://github.com/npm/npm/blob/latest/lib/config/core.js#L362-L407
+const parseField = (field, key) => {
+ if (typeof field !== 'string') {
+ return field;
+ }
+
+ const typeList = [].concat(types[key]);
+ const isPath = typeList.indexOf(path) !== -1;
+ const isBool = typeList.indexOf(Boolean) !== -1;
+ const isString = typeList.indexOf(String) !== -1;
+ const isNumber = typeList.indexOf(Number) !== -1;
+
+ field = `${field}`.trim();
+
+ if (/^".*"$/.test(field)) {
+ try {
+ field = JSON.parse(field);
+ } catch (err) {
+ throw new Error(`Failed parsing JSON config key ${key}: ${field}`);
+ }
+ }
+
+ if (isBool && !isString && field === '') {
+ return true;
+ }
+
+ switch (field) { // eslint-disable-line default-case
+ case 'true': {
+ return true;
+ }
+
+ case 'false': {
+ return false;
+ }
+
+ case 'null': {
+ return null;
+ }
+
+ case 'undefined': {
+ return undefined;
+ }
+ }
+
+ field = envReplace(field);
+
+ if (isPath) {
+ const regex = process.platform === 'win32' ? /^~(\/|\\)/ : /^~\//;
+
+ if (regex.test(field) && process.env.HOME) {
+ field = path.resolve(process.env.HOME, field.substr(2));
+ }
+
+ field = path.resolve(field);
+ }
+
+ if (isNumber && !field.isNan()) {
+ field = Number(field);
+ }
+
+ return field;
+};
+
+// https://github.com/npm/npm/blob/latest/lib/config/find-prefix.js
+const findPrefix = name => {
+ name = path.resolve(name);
+
+ let walkedUp = false;
+
+ while (path.basename(name) === 'node_modules') {
+ name = path.dirname(name);
+ walkedUp = true;
+ }
+
+ if (walkedUp) {
+ return name;
+ }
+
+ const find = (name, original) => {
+ const regex = /^[a-zA-Z]:(\\|\/)?$/;
+
+ if (name === '/' || (process.platform === 'win32' && regex.test(name))) {
+ return original;
+ }
+
+ try {
+ const files = fs.readdirSync(name);
+
+ if (files.indexOf('node_modules') !== -1 || files.indexOf('package.json') !== -1) {
+ return name;
+ }
+
+ const dirname = path.dirname(name);
+
+ if (dirname === name) {
+ return original;
+ }
+
+ return find(dirname, original);
+ } catch (err) {
+ if (name === original) {
+ if (err.code === 'ENOENT') {
+ return original;
+ }
+
+ throw err;
+ }
+
+ return original;
+ }
+ };
+
+ return find(name, name);
+};
+
+exports.envReplace = envReplace;
+exports.findPrefix = findPrefix;
+exports.parseField = parseField;