@angular/cli
Version:
CLI tool for Angular
106 lines (105 loc) • 3.63 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.JSONFile = void 0;
exports.readAndParseJson = readAndParseJson;
exports.parseJson = parseJson;
const jsonc_parser_1 = require("jsonc-parser");
const node_fs_1 = require("node:fs");
const eol_1 = require("./eol");
/** @internal */
class JSONFile {
path;
content;
eol;
constructor(path) {
this.path = path;
const buffer = (0, node_fs_1.readFileSync)(this.path);
if (buffer) {
this.content = buffer.toString();
}
else {
throw new Error(`Could not read '${path}'.`);
}
this.eol = (0, eol_1.getEOL)(this.content);
}
_jsonAst;
get JsonAst() {
if (this._jsonAst) {
return this._jsonAst;
}
const errors = [];
this._jsonAst = (0, jsonc_parser_1.parseTree)(this.content, errors, { allowTrailingComma: true });
if (errors.length) {
formatError(this.path, errors);
}
return this._jsonAst;
}
get(jsonPath) {
const jsonAstNode = this.JsonAst;
if (!jsonAstNode) {
return undefined;
}
if (jsonPath.length === 0) {
return (0, jsonc_parser_1.getNodeValue)(jsonAstNode);
}
const node = (0, jsonc_parser_1.findNodeAtLocation)(jsonAstNode, jsonPath);
return node === undefined ? undefined : (0, jsonc_parser_1.getNodeValue)(node);
}
modify(jsonPath, value, insertInOrder) {
if (value === undefined && this.get(jsonPath) === undefined) {
// Cannot remove a value which doesn't exist.
return false;
}
let getInsertionIndex;
if (insertInOrder === undefined) {
const property = jsonPath.slice(-1)[0];
getInsertionIndex = (properties) => [...properties, property].sort().findIndex((p) => p === property);
}
else if (insertInOrder !== false) {
getInsertionIndex = insertInOrder;
}
const edits = (0, jsonc_parser_1.modify)(this.content, jsonPath, value, {
getInsertionIndex,
// TODO: use indentation from original file.
formattingOptions: {
insertSpaces: true,
tabSize: 2,
eol: this.eol,
},
});
if (edits.length === 0) {
return false;
}
this.content = (0, jsonc_parser_1.applyEdits)(this.content, edits);
this._jsonAst = undefined;
return true;
}
save() {
(0, node_fs_1.writeFileSync)(this.path, this.content);
}
}
exports.JSONFile = JSONFile;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function readAndParseJson(path) {
const errors = [];
const content = (0, jsonc_parser_1.parse)((0, node_fs_1.readFileSync)(path, 'utf-8'), errors, { allowTrailingComma: true });
if (errors.length) {
formatError(path, errors);
}
return content;
}
function formatError(path, errors) {
const { error, offset } = errors[0];
throw new Error(`Failed to parse "${path}" as JSON AST Object. ${(0, jsonc_parser_1.printParseErrorCode)(error)} at location: ${offset}.`);
}
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function parseJson(content) {
return (0, jsonc_parser_1.parse)(content, undefined, { allowTrailingComma: true });
}