tra-analysis/website/node_modules/firebase-functions/lib/utils.js
2019-01-06 13:14:45 -06:00

98 lines
2.9 KiB
JavaScript

"use strict";
// The MIT License (MIT)
//
// Copyright (c) 2017 Firebase
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
Object.defineProperty(exports, "__esModule", { value: true });
const _ = require("lodash");
function normalizePath(path) {
if (!path) {
return '';
}
return path.replace(/^\//, '').replace(/\/$/, '');
}
exports.normalizePath = normalizePath;
function pathParts(path) {
if (!path || path === '' || path === '/') {
return [];
}
return normalizePath(path).split('/');
}
exports.pathParts = pathParts;
function joinPath(base, child) {
return pathParts(base)
.concat(pathParts(child))
.join('/');
}
exports.joinPath = joinPath;
function applyChange(src, dest) {
// if not mergeable, don't merge
if (!_.isPlainObject(dest) || !_.isPlainObject(src)) {
return dest;
}
return pruneNulls(_.merge({}, src, dest));
}
exports.applyChange = applyChange;
function pruneNulls(obj) {
for (let key in obj) {
if (obj[key] === null) {
delete obj[key];
}
else if (_.isPlainObject(obj[key])) {
pruneNulls(obj[key]);
}
}
return obj;
}
exports.pruneNulls = pruneNulls;
function valAt(source, path) {
if (source === null) {
return null;
}
else if (typeof source !== 'object') {
return path ? null : source;
}
let parts = pathParts(path);
if (!parts.length) {
return source;
}
let cur = source;
let leaf;
while (parts.length) {
let key = parts.shift();
if (cur[key] === null || leaf) {
return null;
}
else if (typeof cur[key] === 'object') {
if (parts.length) {
cur = cur[key];
}
else {
return cur[key];
}
}
else {
leaf = cur[key];
}
}
return leaf;
}
exports.valAt = valAt;