98 lines
3.3 KiB
JavaScript
Executable file
98 lines
3.3 KiB
JavaScript
Executable file
"use strict";
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.parseJson = exports.readAndParseJson = exports.JSONFile = void 0;
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const fs_1 = require("fs");
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const jsonc_parser_1 = require("jsonc-parser");
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/** @internal */
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class JSONFile {
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constructor(path) {
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this.path = path;
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const buffer = fs_1.readFileSync(this.path);
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if (buffer) {
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this.content = buffer.toString();
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}
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else {
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throw new Error(`Could not read '${path}'.`);
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}
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}
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get JsonAst() {
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if (this._jsonAst) {
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return this._jsonAst;
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}
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const errors = [];
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this._jsonAst = jsonc_parser_1.parseTree(this.content, errors, { allowTrailingComma: true });
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if (errors.length) {
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formatError(this.path, errors);
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}
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return this._jsonAst;
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}
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get(jsonPath) {
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const jsonAstNode = this.JsonAst;
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if (!jsonAstNode) {
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return undefined;
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}
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if (jsonPath.length === 0) {
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return jsonc_parser_1.getNodeValue(jsonAstNode);
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}
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const node = jsonc_parser_1.findNodeAtLocation(jsonAstNode, jsonPath);
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return node === undefined ? undefined : jsonc_parser_1.getNodeValue(node);
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}
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modify(jsonPath, value, insertInOrder) {
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if (value === undefined && this.get(jsonPath) === undefined) {
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// Cannot remove a value which doesn't exist.
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return false;
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}
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let getInsertionIndex;
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if (insertInOrder === undefined) {
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const property = jsonPath.slice(-1)[0];
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getInsertionIndex = (properties) => [...properties, property].sort().findIndex((p) => p === property);
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}
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else if (insertInOrder !== false) {
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getInsertionIndex = insertInOrder;
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}
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const edits = jsonc_parser_1.modify(this.content, jsonPath, value, {
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getInsertionIndex,
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formattingOptions: {
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insertSpaces: true,
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tabSize: 2,
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},
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});
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if (edits.length === 0) {
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return false;
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}
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this.content = jsonc_parser_1.applyEdits(this.content, edits);
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this._jsonAst = undefined;
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return true;
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}
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save() {
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fs_1.writeFileSync(this.path, this.content);
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}
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}
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exports.JSONFile = JSONFile;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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function readAndParseJson(path) {
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const errors = [];
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const content = jsonc_parser_1.parse(fs_1.readFileSync(path, 'utf-8'), errors, { allowTrailingComma: true });
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if (errors.length) {
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formatError(path, errors);
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}
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return content;
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}
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exports.readAndParseJson = readAndParseJson;
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function formatError(path, errors) {
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const { error, offset } = errors[0];
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throw new Error(`Failed to parse "${path}" as JSON AST Object. ${jsonc_parser_1.printParseErrorCode(error)} at location: ${offset}.`);
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}
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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function parseJson(content) {
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return jsonc_parser_1.parse(content, undefined, { allowTrailingComma: true });
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}
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exports.parseJson = parseJson;
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