41 lines
1.3 KiB
TypeScript
41 lines
1.3 KiB
TypeScript
import fs from "fs";
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import { atomicWrite } from "./fs.js";
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export function loadJson(path: string): any {
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return JSON.parse(fs.readFileSync(path).toString());
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}
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type Replacer = (key: string, value: any) => any;
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export type SortFunc = (parent: string, a: string, b: string) => number;
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export function saveJson(filename: string, data: any, sort?: boolean | SortFunc): any {
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let replacer: (Replacer | undefined) = undefined;
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if (sort) {
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replacer = (key, value) => {
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if (Array.isArray(value)) {
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// pass
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} else if (value && typeof(value) === "object") {
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const keys = Object.keys(value);
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let sortFunc: undefined | ((a: string, b: string) => number);
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if (typeof(sort) === "function") {
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sortFunc = function(a: string, b: string) {
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return sort(key, a, b);
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}
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}
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keys.sort(sortFunc);
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return keys.reduce((accum, key) => {
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accum[key] = value[key];
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return accum;
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}, <Record<string, any>>{});
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}
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return value;
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};
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}
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atomicWrite(filename, JSON.stringify(data, replacer, 2) + "\n");
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}
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