118 lines
4.7 KiB
JavaScript
Executable file
118 lines
4.7 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.NodeModulesEngineHost = exports.NodePackageDoesNotSupportSchematics = void 0;
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const core_1 = require("@angular-devkit/core");
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const path_1 = require("path");
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const export_ref_1 = require("./export-ref");
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const file_system_engine_host_base_1 = require("./file-system-engine-host-base");
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const file_system_utility_1 = require("./file-system-utility");
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class NodePackageDoesNotSupportSchematics extends core_1.BaseException {
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constructor(name) {
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super(`Package ${JSON.stringify(name)} was found but does not support schematics.`);
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}
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}
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exports.NodePackageDoesNotSupportSchematics = NodePackageDoesNotSupportSchematics;
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/**
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* A simple EngineHost that uses NodeModules to resolve collections.
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*/
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class NodeModulesEngineHost extends file_system_engine_host_base_1.FileSystemEngineHostBase {
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paths;
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constructor(paths) {
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super();
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this.paths = paths;
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}
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resolve(name, requester, references = new Set()) {
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// Keep track of the package requesting the schematic, in order to avoid infinite recursion
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if (requester) {
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if (references.has(requester)) {
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references.add(requester);
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throw new Error('Circular schematic reference detected: ' + JSON.stringify(Array.from(references)));
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}
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else {
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references.add(requester);
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}
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}
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const relativeBase = requester ? (0, path_1.dirname)(requester) : process.cwd();
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let collectionPath = undefined;
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if (name.startsWith('.')) {
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name = (0, path_1.resolve)(relativeBase, name);
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}
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const resolveOptions = {
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paths: requester ? [(0, path_1.dirname)(requester), ...(this.paths || [])] : this.paths,
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};
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// Try to resolve as a package
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try {
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const packageJsonPath = require.resolve((0, path_1.join)(name, 'package.json'), resolveOptions);
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const { schematics } = require(packageJsonPath);
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if (!schematics || typeof schematics !== 'string') {
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throw new NodePackageDoesNotSupportSchematics(name);
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}
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// If this is a relative path to the collection, then create the collection
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// path in relation to the package path
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if (schematics.startsWith('.')) {
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const packageDirectory = (0, path_1.dirname)(packageJsonPath);
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collectionPath = (0, path_1.resolve)(packageDirectory, schematics);
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}
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// Otherwise treat this as a package, and recurse to find the collection path
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else {
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collectionPath = this.resolve(schematics, packageJsonPath, references);
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}
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}
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catch (e) {
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if (e.code !== 'MODULE_NOT_FOUND') {
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throw e;
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}
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}
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// If not a package, try to resolve as a file
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if (!collectionPath) {
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try {
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collectionPath = require.resolve(name, resolveOptions);
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}
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catch (e) {
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if (e.code !== 'MODULE_NOT_FOUND') {
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throw e;
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}
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}
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}
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// If not a package or a file, error
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if (!collectionPath) {
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throw new file_system_engine_host_base_1.CollectionCannotBeResolvedException(name);
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}
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return collectionPath;
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}
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_resolveCollectionPath(name, requester) {
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const collectionPath = this.resolve(name, requester);
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(0, file_system_utility_1.readJsonFile)(collectionPath);
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return collectionPath;
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}
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_resolveReferenceString(refString, parentPath, collectionDescription) {
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const ref = new export_ref_1.ExportStringRef(refString, parentPath);
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if (!ref.ref) {
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return null;
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}
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return { ref: ref.ref, path: ref.module };
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}
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_transformCollectionDescription(name, desc) {
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if (!desc.schematics || typeof desc.schematics != 'object') {
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throw new file_system_engine_host_base_1.CollectionMissingSchematicsMapException(name);
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}
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return {
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...desc,
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name,
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};
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}
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_transformSchematicDescription(name, _collection, desc) {
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if (!desc.factoryFn || !desc.path || !desc.description) {
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throw new file_system_engine_host_base_1.SchematicMissingFieldsException(name);
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}
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return desc;
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}
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}
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exports.NodeModulesEngineHost = NodeModulesEngineHost;
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