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