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@angular-devkit/schematics

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"use strict"; /** * @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.io/license */ Object.defineProperty(exports, "__esModule", { value: true }); exports.SchematicEngine = exports.TaskScheduler = exports.CollectionImpl = exports.UnknownTaskDependencyException = exports.UnregisteredTaskException = exports.SchematicEngineConflictingException = exports.PrivateSchematicException = exports.UnknownSchematicException = exports.CircularCollectionException = exports.UnknownCollectionException = exports.UnknownUrlSourceProtocol = void 0; const core_1 = require("@angular-devkit/core"); const rxjs_1 = require("rxjs"); const operators_1 = require("rxjs/operators"); const interface_1 = require("../tree/interface"); const null_1 = require("../tree/null"); const static_1 = require("../tree/static"); const schematic_1 = require("./schematic"); class UnknownUrlSourceProtocol extends core_1.BaseException { constructor(url) { super(`Unknown Protocol on url "${url}".`); } } exports.UnknownUrlSourceProtocol = UnknownUrlSourceProtocol; class UnknownCollectionException extends core_1.BaseException { constructor(name) { super(`Unknown collection "${name}".`); } } exports.UnknownCollectionException = UnknownCollectionException; class CircularCollectionException extends core_1.BaseException { constructor(name) { super(`Circular collection reference "${name}".`); } } exports.CircularCollectionException = CircularCollectionException; class UnknownSchematicException extends core_1.BaseException { constructor(name, collection) { super(`Schematic "${name}" not found in collection "${collection.name}".`); } } exports.UnknownSchematicException = UnknownSchematicException; class PrivateSchematicException extends core_1.BaseException { constructor(name, collection) { super(`Schematic "${name}" not found in collection "${collection.name}".`); } } exports.PrivateSchematicException = PrivateSchematicException; class SchematicEngineConflictingException extends core_1.BaseException { constructor() { super(`A schematic was called from a different engine as its parent.`); } } exports.SchematicEngineConflictingException = SchematicEngineConflictingException; class UnregisteredTaskException extends core_1.BaseException { constructor(name, schematic) { const addendum = schematic ? ` in schematic "${schematic.name}"` : ''; super(`Unregistered task "${name}"${addendum}.`); } } exports.UnregisteredTaskException = UnregisteredTaskException; class UnknownTaskDependencyException extends core_1.BaseException { constructor(id) { super(`Unknown task dependency [ID: ${id.id}].`); } } exports.UnknownTaskDependencyException = UnknownTaskDependencyException; class CollectionImpl { constructor(_description, _engine, baseDescriptions) { this._description = _description; this._engine = _engine; this.baseDescriptions = baseDescriptions; } get description() { return this._description; } get name() { return this.description.name || '<unknown>'; } createSchematic(name, allowPrivate = false) { return this._engine.createSchematic(name, this, allowPrivate); } listSchematicNames(includeHidden) { return this._engine.listSchematicNames(this, includeHidden); } } exports.CollectionImpl = CollectionImpl; class TaskScheduler { constructor(_context) { this._context = _context; this._queue = new core_1.PriorityQueue((x, y) => x.priority - y.priority); this._taskIds = new Map(); } _calculatePriority(dependencies) { if (dependencies.size === 0) { return 0; } const prio = [...dependencies].reduce((prio, task) => prio + task.priority, 1); return prio; } _mapDependencies(dependencies) { if (!dependencies) { return new Set(); } const tasks = dependencies.map((dep) => { const task = this._taskIds.get(dep); if (!task) { throw new UnknownTaskDependencyException(dep); } return task; }); return new Set(tasks); } schedule(taskConfiguration) { const dependencies = this._mapDependencies(taskConfiguration.dependencies); const priority = this._calculatePriority(dependencies); const task = { id: TaskScheduler._taskIdCounter++, priority, configuration: taskConfiguration, context: this._context, }; this._queue.push(task); const id = { id: task.id }; this._taskIds.set(id, task); return id; } finalize() { const tasks = this._queue.toArray(); this._queue.clear(); this._taskIds.clear(); return tasks; } } exports.TaskScheduler = TaskScheduler; TaskScheduler._taskIdCounter = 1; class SchematicEngine { constructor(_host, _workflow) { this._host = _host; this._workflow = _workflow; this._collectionCache = new Map(); this._schematicCache = new WeakMap(); this._taskSchedulers = new Array(); } get workflow() { return this._workflow || null; } get defaultMergeStrategy() { return this._host.defaultMergeStrategy || interface_1.MergeStrategy.Default; } createCollection(name, requester) { let collection = this._collectionCache.get(name); if (collection) { return collection; } const [description, bases] = this._createCollectionDescription(name, requester === null || requester === void 0 ? void 0 : requester.description); collection = new CollectionImpl(description, this, bases); this._collectionCache.set(name, collection); this._schematicCache.set(collection, new Map()); return collection; } _createCollectionDescription(name, requester, parentNames) { const description = this._host.createCollectionDescription(name, requester); if (!description) { throw new UnknownCollectionException(name); } if (parentNames && parentNames.has(description.name)) { throw new CircularCollectionException(name); } const bases = new Array(); if (description.extends) { parentNames = (parentNames || new Set()).add(description.name); for (const baseName of description.extends) { const [base, baseBases] = this._createCollectionDescription(baseName, description, new Set(parentNames)); bases.unshift(base, ...baseBases); } } return [description, bases]; } createContext(schematic, parent, executionOptions) { // Check for inconsistencies. if (parent && parent.engine && parent.engine !== this) { throw new SchematicEngineConflictingException(); } let interactive = true; if (executionOptions && executionOptions.interactive != undefined) { interactive = executionOptions.interactive; } else if (parent && parent.interactive != undefined) { interactive = parent.interactive; } let context = { debug: (parent && parent.debug) || false, engine: this, logger: (parent && parent.logger && parent.logger.createChild(schematic.description.name)) || new core_1.logging.NullLogger(), schematic, strategy: parent && parent.strategy !== undefined ? parent.strategy : this.defaultMergeStrategy, interactive, addTask, }; const maybeNewContext = this._host.transformContext(context); if (maybeNewContext) { context = maybeNewContext; } const taskScheduler = new TaskScheduler(context); const host = this._host; this._taskSchedulers.push(taskScheduler); function addTask(task, dependencies) { const config = task.toConfiguration(); if (!host.hasTaskExecutor(config.name)) { throw new UnregisteredTaskException(config.name, schematic.description); } config.dependencies = config.dependencies || []; if (dependencies) { config.dependencies.unshift(...dependencies); } return taskScheduler.schedule(config); } return context; } createSchematic(name, collection, allowPrivate = false) { const schematicMap = this._schematicCache.get(collection); let schematic = schematicMap === null || schematicMap === void 0 ? void 0 : schematicMap.get(name); if (schematic) { return schematic; } let collectionDescription = collection.description; let description = this._host.createSchematicDescription(name, collection.description); if (!description) { if (collection.baseDescriptions) { for (const base of collection.baseDescriptions) { description = this._host.createSchematicDescription(name, base); if (description) { collectionDescription = base; break; } } } if (!description) { // Report the error for the top level schematic collection throw new UnknownSchematicException(name, collection.description); } } if (description.private && !allowPrivate) { throw new PrivateSchematicException(name, collection.description); } const factory = this._host.getSchematicRuleFactory(description, collectionDescription); schematic = new schematic_1.SchematicImpl(description, factory, collection, this); schematicMap === null || schematicMap === void 0 ? void 0 : schematicMap.set(name, schematic); return schematic; } listSchematicNames(collection, includeHidden) { const names = this._host.listSchematicNames(collection.description, includeHidden); if (collection.baseDescriptions) { for (const base of collection.baseDescriptions) { names.push(...this._host.listSchematicNames(base, includeHidden)); } } // remove duplicates return [...new Set(names)].sort(); } transformOptions(schematic, options, context) { return this._host.transformOptions(schematic.description, options, context); } createSourceFromUrl(url, context) { switch (url.protocol) { case 'null:': return () => new null_1.NullTree(); case 'empty:': return () => (0, static_1.empty)(); default: const hostSource = this._host.createSourceFromUrl(url, context); if (!hostSource) { throw new UnknownUrlSourceProtocol(url.toString()); } return hostSource; } } executePostTasks() { const executors = new Map(); const taskObservable = (0, rxjs_1.from)(this._taskSchedulers).pipe((0, operators_1.concatMap)((scheduler) => scheduler.finalize()), (0, operators_1.concatMap)((task) => { const { name, options } = task.configuration; const executor = executors.get(name); if (executor) { return executor(options, task.context); } return this._host.createTaskExecutor(name).pipe((0, operators_1.concatMap)((executor) => { executors.set(name, executor); return executor(options, task.context); })); })); return taskObservable; } } exports.SchematicEngine = SchematicEngine; //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport { BaseException, PriorityQueue, logging } from '@angular-devkit/core';\nimport { Observable, from as observableFrom } from 'rxjs';\nimport { concatMap } from 'rxjs/operators';\nimport { Url } from 'url';\nimport { MergeStrategy } from '../tree/interface';\nimport { NullTree } from '../tree/null';\nimport { empty } from '../tree/static';\nimport { Workflow } from '../workflow/interface';\nimport {\n  Collection,\n  CollectionDescription,\n  Engine,\n  EngineHost,\n  ExecutionOptions,\n  Schematic,\n  SchematicContext,\n  SchematicDescription,\n  Source,\n  TaskConfiguration,\n  TaskConfigurationGenerator,\n  TaskExecutor,\n  TaskId,\n  TaskInfo,\n  TypedSchematicContext,\n} from './interface';\nimport { SchematicImpl } from './schematic';\n\nexport class UnknownUrlSourceProtocol extends BaseException {\n  constructor(url: string) {\n    super(`Unknown Protocol on url \"${url}\".`);\n  }\n}\n\nexport class UnknownCollectionException extends BaseException {\n  constructor(name: string) {\n    super(`Unknown collection \"${name}\".`);\n  }\n}\n\nexport class CircularCollectionException extends BaseException {\n  constructor(name: string) {\n    super(`Circular collection reference \"${name}\".`);\n  }\n}\n\nexport class UnknownSchematicException extends BaseException {\n  constructor(name: string, collection: CollectionDescription<{}>) {\n    super(`Schematic \"${name}\" not found in collection \"${collection.name}\".`);\n  }\n}\n\nexport class PrivateSchematicException extends BaseException {\n  constructor(name: string, collection: CollectionDescription<{}>) {\n    super(`Schematic \"${name}\" not found in collection \"${collection.name}\".`);\n  }\n}\n\nexport class SchematicEngineConflictingException extends BaseException {\n  constructor() {\n    super(`A schematic was called from a different engine as its parent.`);\n  }\n}\n\nexport class UnregisteredTaskException extends BaseException {\n  constructor(name: string, schematic?: SchematicDescription<{}, {}>) {\n    const addendum = schematic ? ` in schematic \"${schematic.name}\"` : '';\n    super(`Unregistered task \"${name}\"${addendum}.`);\n  }\n}\n\nexport class UnknownTaskDependencyException extends BaseException {\n  constructor(id: TaskId) {\n    super(`Unknown task dependency [ID: ${id.id}].`);\n  }\n}\n\nexport class CollectionImpl<CollectionT extends object, SchematicT extends object>\n  implements Collection<CollectionT, SchematicT>\n{\n  constructor(\n    private _description: CollectionDescription<CollectionT>,\n    private _engine: SchematicEngine<CollectionT, SchematicT>,\n    public readonly baseDescriptions?: Array<CollectionDescription<CollectionT>>,\n  ) {}\n\n  get description() {\n    return this._description;\n  }\n  get name() {\n    return this.description.name || '<unknown>';\n  }\n\n  createSchematic(name: string, allowPrivate = false): Schematic<CollectionT, SchematicT> {\n    return this._engine.createSchematic(name, this, allowPrivate);\n  }\n\n  listSchematicNames(includeHidden?: boolean): string[] {\n    return this._engine.listSchematicNames(this, includeHidden);\n  }\n}\n\nexport class TaskScheduler {\n  private _queue = new PriorityQueue<TaskInfo>((x, y) => x.priority - y.priority);\n  private _taskIds = new Map<TaskId, TaskInfo>();\n  private static _taskIdCounter = 1;\n\n  constructor(private _context: SchematicContext) {}\n\n  private _calculatePriority(dependencies: Set<TaskInfo>): number {\n    if (dependencies.size === 0) {\n      return 0;\n    }\n\n    const prio = [...dependencies].reduce((prio, task) => prio + task.priority, 1);\n\n    return prio;\n  }\n\n  private _mapDependencies(dependencies?: Array<TaskId>): Set<TaskInfo> {\n    if (!dependencies) {\n      return new Set();\n    }\n\n    const tasks = dependencies.map((dep) => {\n      const task = this._taskIds.get(dep);\n      if (!task) {\n        throw new UnknownTaskDependencyException(dep);\n      }\n\n      return task;\n    });\n\n    return new Set(tasks);\n  }\n\n  schedule<T extends object>(taskConfiguration: TaskConfiguration<T>): TaskId {\n    const dependencies = this._mapDependencies(taskConfiguration.dependencies);\n    const priority = this._calculatePriority(dependencies);\n\n    const task = {\n      id: TaskScheduler._taskIdCounter++,\n      priority,\n      configuration: taskConfiguration,\n      context: this._context,\n    };\n\n    this._queue.push(task);\n\n    const id = { id: task.id };\n    this._taskIds.set(id, task);\n\n    return id;\n  }\n\n  finalize(): ReadonlyArray<TaskInfo> {\n    const tasks = this._queue.toArray();\n    this._queue.clear();\n    this._taskIds.clear();\n\n    return tasks;\n  }\n}\n\nexport class SchematicEngine<CollectionT extends object, SchematicT extends object>\n  implements Engine<CollectionT, SchematicT>\n{\n  private _collectionCache = new Map<string, CollectionImpl<CollectionT, SchematicT>>();\n  private _schematicCache = new WeakMap<\n    Collection<CollectionT, SchematicT>,\n    Map<string, SchematicImpl<CollectionT, SchematicT>>\n  >();\n  private _taskSchedulers = new Array<TaskScheduler>();\n\n  constructor(private _host: EngineHost<CollectionT, SchematicT>, protected _workflow?: Workflow) {}\n\n  get workflow() {\n    return this._workflow || null;\n  }\n  get defaultMergeStrategy() {\n    return this._host.defaultMergeStrategy || MergeStrategy.Default;\n  }\n\n  createCollection(\n    name: string,\n    requester?: Collection<CollectionT, SchematicT>,\n  ): Collection<CollectionT, SchematicT> {\n    let collection = this._collectionCache.get(name);\n    if (collection) {\n      return collection;\n    }\n\n    const [description, bases] = this._createCollectionDescription(name, requester?.description);\n\n    collection = new CollectionImpl<CollectionT, SchematicT>(description, this, bases);\n    this._collectionCache.set(name, collection);\n    this._schematicCache.set(collection, new Map());\n\n    return collection;\n  }\n\n  private _createCollectionDescription(\n    name: string,\n    requester?: CollectionDescription<CollectionT>,\n    parentNames?: Set<string>,\n  ): [CollectionDescription<CollectionT>, Array<CollectionDescription<CollectionT>>] {\n    const description = this._host.createCollectionDescription(name, requester);\n    if (!description) {\n      throw new UnknownCollectionException(name);\n    }\n    if (parentNames && parentNames.has(description.name)) {\n      throw new CircularCollectionException(name);\n    }\n\n    const bases = new Array<CollectionDescription<CollectionT>>();\n    if (description.extends) {\n      parentNames = (parentNames || new Set<string>()).add(description.name);\n      for (const baseName of description.extends) {\n        const [base, baseBases] = this._createCollectionDescription(\n          baseName,\n          description,\n          new Set(parentNames),\n        );\n\n        bases.unshift(base, ...baseBases);\n      }\n    }\n\n    return [description, bases];\n  }\n\n  createContext(\n    schematic: Schematic<CollectionT, SchematicT>,\n    parent?: Partial<TypedSchematicContext<CollectionT, SchematicT>>,\n    executionOptions?: Partial<ExecutionOptions>,\n  ): TypedSchematicContext<CollectionT, SchematicT> {\n    // Check for inconsistencies.\n    if (parent && parent.engine && parent.engine !== this) {\n      throw new SchematicEngineConflictingException();\n    }\n\n    let interactive = true;\n    if (executionOptions && executionOptions.interactive != undefined) {\n      interactive = executionOptions.interactive;\n    } else if (parent && parent.interactive != undefined) {\n      interactive = parent.interactive;\n    }\n\n    let context: TypedSchematicContext<CollectionT, SchematicT> = {\n      debug: (parent && parent.debug) || false,\n      engine: this,\n      logger:\n        (parent && parent.logger && parent.logger.createChild(schematic.description.name)) ||\n        new logging.NullLogger(),\n      schematic,\n      strategy:\n        parent && parent.strategy !== undefined ? parent.strategy : this.defaultMergeStrategy,\n      interactive,\n      addTask,\n    };\n\n    const maybeNewContext = this._host.transformContext(context);\n    if (maybeNewContext) {\n      context = maybeNewContext;\n    }\n\n    const taskScheduler = new TaskScheduler(context);\n    const host = this._host;\n    this._taskSchedulers.push(taskScheduler);\n\n    function addTask<T extends object>(\n      task: TaskConfigurationGenerator<T>,\n      dependencies?: Array<TaskId>,\n    ): TaskId {\n      const config = task.toConfiguration();\n\n      if (!host.hasTaskExecutor(config.name)) {\n        throw new UnregisteredTaskException(config.name, schematic.description);\n      }\n\n      config.dependencies = config.dependencies || [];\n      if (dependencies) {\n        config.dependencies.unshift(...dependencies);\n      }\n\n      return taskScheduler.schedule(config);\n    }\n\n    return context;\n  }\n\n  createSchematic(\n    name: string,\n    collection: Collection<CollectionT, SchematicT>,\n    allowPrivate = false,\n  ): Schematic<CollectionT, SchematicT> {\n    const schematicMap = this._schematicCache.get(collection);\n\n    let schematic = schematicMap?.get(name);\n    if (schematic) {\n      return schematic;\n    }\n\n    let collectionDescription = collection.description;\n    let description = this._host.createSchematicDescription(name, collection.description);\n    if (!description) {\n      if (collection.baseDescriptions) {\n        for (const base of collection.baseDescriptions) {\n          description = this._host.createSchematicDescription(name, base);\n          if (description) {\n            collectionDescription = base;\n            break;\n          }\n        }\n      }\n      if (!description) {\n        // Report the error for the top level schematic collection\n        throw new UnknownSchematicException(name, collection.description);\n      }\n    }\n\n    if (description.private && !allowPrivate) {\n      throw new PrivateSchematicException(name, collection.description);\n    }\n\n    const factory = this._host.getSchematicRuleFactory(description, collectionDescription);\n    schematic = new SchematicImpl<CollectionT, SchematicT>(description, factory, collection, this);\n\n    schematicMap?.set(name, schematic);\n\n    return schematic;\n  }\n\n  listSchematicNames(\n    collection: Collection<CollectionT, SchematicT>,\n    includeHidden?: boolean,\n  ): string[] {\n    const names = this._host.listSchematicNames(collection.description, includeHidden);\n\n    if (collection.baseDescriptions) {\n      for (const base of collection.baseDescriptions) {\n        names.push(...this._host.listSchematicNames(base, includeHidden));\n      }\n    }\n\n    // remove duplicates\n    return [...new Set(names)].sort();\n  }\n\n  transformOptions<OptionT extends object, ResultT extends object>(\n    schematic: Schematic<CollectionT, SchematicT>,\n    options: OptionT,\n    context?: TypedSchematicContext<CollectionT, SchematicT>,\n  ): Observable<ResultT> {\n    return this._host.transformOptions<OptionT, ResultT>(schematic.description, options, context);\n  }\n\n  createSourceFromUrl(url: Url, context: TypedSchematicContext<CollectionT, SchematicT>): Source {\n    switch (url.protocol) {\n      case 'null:':\n        return () => new NullTree();\n      case 'empty:':\n        return () => empty();\n      default:\n        const hostSource = this._host.createSourceFromUrl(url, context);\n        if (!hostSource) {\n          throw new UnknownUrlSourceProtocol(url.toString());\n        }\n\n        return hostSource;\n    }\n  }\n\n  executePostTasks(): Observable<void> {\n    const executors = new Map<string, TaskExecutor>();\n\n    const taskObservable = observableFrom(this._taskSchedulers).pipe(\n      concatMap((scheduler) => scheduler.finalize()),\n      concatMap((task) => {\n        const { name, options } = task.configuration;\n\n        const executor = executors.get(name);\n        if (executor) {\n          return executor(options, task.context);\n        }\n\n        return this._host.createTaskExecutor(name).pipe(\n          concatMap((executor) => {\n            executors.set(name, executor);\n\n            return executor(options, task.context);\n          }),\n        );\n      }),\n    );\n\n    return taskObservable;\n  }\n}\n"]}