@speedy/json-extends/dist/json.js

Extend a JSON file with one or many existing files.

var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const _ = require("lodash");
const fs = require("fs");
const path_1 = require("path");
var json;
(function (json) {
    /**
     * Retrieve a JSON file asynchronous. Supports `extends` with one or many existing JSON files.
     *
     * @template T
     * @param {string} filePath path to a JSON file.
     * @param {{ [id: string]: string }} [namedExtends] A key value pair of named extends paths.
     *
     * @example
     * import { json } from "@speedy/json-extends";
     *
     * const named = {
     * 	"@speedy/commit-msg-hook:latest": "./node_modules/config/config.json"
     * };
     *
     * json.read("local-config.json", named)
     * 	.then(content => {
     * 		// json content
     * 	});
     *
     * @returns {Promise<T>}
     */
    function read(filePath, namedExtends) {
        return __awaiter(this, void 0, void 0, function* () {
            return readSync(filePath, namedExtends);
        });
    }
    json.read = read;
    /**
     * Retrieve a JSON file synchronously. Supports `extends` with one or many existing JSON files.
     *
     * @template T
     * @param {string} filePath path to a JSON file.
     * @param {{ [id: string]: string }} [namedExtends] A key value pair of named extends paths.
     *
     * @example
     * import { json } from "@speedy/json-extends";
     *
     * const named = {
     * 	"@speedy/commit-msg-hook:latest": "./node_modules/config/config.json"
     * };
     *
     * const content = json.readSync("local-config.json", named);
     *
     * @returns {T}
     */
    function readSync(filePath, namedExtends) {
        const content = JSON.parse(fs.readFileSync(filePath, "utf-8"));
        if (_.isEmpty(content.extends)) {
            return content;
        }
        const contentUnmerged = [];
        for (let path of _.castArray(content.extends)) {
            if (namedExtends) {
                const extendsValue = namedExtends[path];
                if (extendsValue) {
                    path = extendsValue;
                }
            }
            contentUnmerged.push(readSync(path_1.resolve(path_1.dirname(filePath), path), namedExtends));
        }
        return _.merge({}, ...contentUnmerged, content);
    }
    json.readSync = readSync;
})(json = exports.json || (exports.json = {}));