[WIP] output full bson objects MONGOSH-1285

packages/service-provider-core/src/admin.ts

@@ -13,7 +13,7 @@ import type {
   AutoEncryptionOptions,
   Collection,
 } from './all-transport-types';
-import type { ConnectionExtraInfo } from './index';
+import type { ConnectionExtraInfo, ServiceProvider } from './index';
 import type { ReplPlatform } from './platform';
 import type {
   AWSEncryptionKeyOptions,
@@ -90,7 +90,10 @@ export default interface Admin {
    * @param uri
    * @param options
    */
-  getNewConnection(uri: string, options: MongoClientOptions): Promise<any>; // returns the ServiceProvider instance
+  getNewConnection(
+    uri: string,
+    options: MongoClientOptions
+  ): Promise<ServiceProvider>;
 
   /**
    * Return the URI for the current connection, if this ServiceProvider is connected.

packages/service-provider-core/src/cursors.ts

@@ -67,3 +67,10 @@ export interface ServiceProviderChangeStream<TSchema = Document>
   next(): Promise<TSchema>;
   readonly resumeToken: ResumeToken;
 }
+
+export type ServiceProviderAnyCursor<TSchema = Document> =
+  | ServiceProviderAggregationCursor<TSchema>
+  | ServiceProviderFindCursor<TSchema>
+  | ServiceProviderRunCommandCursor<TSchema>
+  | ServiceProviderFindCursor<TSchema>
+  | ServiceProviderChangeStream<TSchema>;

packages/service-provider-core/src/index.ts

@@ -24,6 +24,7 @@ export {
   ServiceProviderFindCursor,
   ServiceProviderRunCommandCursor,
   ServiceProviderChangeStream,
+  ServiceProviderAnyCursor,
 } from './cursors';
 
 export {

packages/shell-api/src/deep-inspect-service-provider-wrapper.ts

@@ -0,0 +1,257 @@
+import type {
+  ServiceProvider,
+  ServiceProviderAbstractCursor,
+} from '@mongosh/service-provider-core';
+import { ServiceProviderCore } from '@mongosh/service-provider-core';
+import type { InspectOptions } from 'util';
+import { inspect } from 'util';
+import type { Document } from '@mongosh/service-provider-core';
+
+export class DeepInspectServiceProviderWrapper
+  extends ServiceProviderCore
+  implements ServiceProvider
+{
+  _sp: ServiceProvider;
+
+  constructor(sp: ServiceProvider) {
+    super(sp.bsonLibrary);
+    this._sp = sp;
+
+    for (const prop of Object.keys(this)) {
+      if (typeof (this as any)[prop] === 'function' && !(prop in sp)) {
+        (this as any)[prop] = undefined;
+      }
+    }
+  }
+
+  aggregate = cursorMethod('aggregate');
+  aggregateDb = cursorMethod('aggregateDb');
+  count = forwardedMethod('count');
+  estimatedDocumentCount = forwardedMethod('estimatedDocumentCount');
+  countDocuments = forwardedMethod('countDocuments');
+  distinct = bsonMethod('distinct');
+  find = cursorMethod('find');
+  findOneAndDelete = bsonMethod('findOneAndDelete');
+  findOneAndReplace = bsonMethod('findOneAndReplace');
+  findOneAndUpdate = bsonMethod('findOneAndUpdate');
+  getTopologyDescription = forwardedMethod('getTopologyDescription');
+  getIndexes = bsonMethod('getIndexes');
+  listCollections = bsonMethod('listCollections');
+  readPreferenceFromOptions = forwardedMethod('readPreferenceFromOptions');
+  // TODO: this should be a cursor method, but the types are incompatible
+  watch = forwardedMethod('watch');
+  getSearchIndexes = bsonMethod('getSearchIndexes');
+  runCommand = bsonMethod('runCommand');
+  runCommandWithCheck = bsonMethod('runCommandWithCheck');
+  runCursorCommand = cursorMethod('runCursorCommand');
+  dropDatabase = bsonMethod('dropDatabase');
+  dropCollection = forwardedMethod('dropCollection');
+  bulkWrite = bsonMethod('bulkWrite');
+  clientBulkWrite = bsonMethod('clientBulkWrite');
+  deleteMany = bsonMethod('deleteMany');
+  updateMany = bsonMethod('updateMany');
+  updateOne = bsonMethod('updateOne');
+  deleteOne = bsonMethod('deleteOne');
+  createIndexes = bsonMethod('createIndexes');
+  insertMany = bsonMethod('insertMany');
+  insertOne = bsonMethod('insertOne');
+  replaceOne = bsonMethod('replaceOne');
+  initializeBulkOp = forwardedMethod('initializeBulkOp'); // you cannot extend the return value here
+  createSearchIndexes = forwardedMethod('createSearchIndexes');
+  close = forwardedMethod('close');
+  suspend = forwardedMethod('suspend');
+  renameCollection = forwardedMethod('renameCollection');
+  dropSearchIndex = forwardedMethod('dropSearchIndex');
+  updateSearchIndex = forwardedMethod('updateSearchIndex');
+  listDatabases = bsonMethod('listDatabases');
+  authenticate = forwardedMethod('authenticate');
+  createCollection = forwardedMethod('createCollection');
+  getReadPreference = forwardedMethod('getReadPreference');
+  getReadConcern = forwardedMethod('getReadConcern');
+  getWriteConcern = forwardedMethod('getWriteConcern');
+
+  get platform() {
+    return this._sp.platform;
+  }
+  get initialDb() {
+    return this._sp.initialDb;
+  }
+
+  getURI = forwardedMethod('getURI');
+  getConnectionInfo = forwardedMethod('getConnectionInfo');
+  resetConnectionOptions = forwardedMethod('resetConnectionOptions');
+  startSession = forwardedMethod('startSession');
+  getRawClient = forwardedMethod('getRawClient');
+  createClientEncryption = forwardedMethod('createClientEncryption');
+  getFleOptions = forwardedMethod('getFleOptions');
+  createEncryptedCollection = forwardedMethod('createEncryptedCollection');
+
+  async getNewConnection(
+    ...args: Parameters<ServiceProvider['getNewConnection']>
+  ): Promise<ServiceProvider> {
+    const sp = await this._sp.getNewConnection(...args);
+    return new DeepInspectServiceProviderWrapper(sp as ServiceProvider);
+  }
+}
+
+type PickMethodsByReturnType<T, R> = {
+  [k in keyof T as NonNullable<T[k]> extends (...args: any[]) => R
+    ? k
+    : never]: T[k];
+};
+
+function cursorMethod<
+  K extends keyof PickMethodsByReturnType<
+    ServiceProvider,
+    ServiceProviderAbstractCursor
+  >
+>(
+  key: K
+): (
+  ...args: Parameters<Required<ServiceProvider>[K]>
+) => ReturnType<Required<ServiceProvider>[K]> {
+  return function (
+    this: DeepInspectServiceProviderWrapper,
+    ...args: Parameters<ServiceProvider[K]>
+  ): ReturnType<ServiceProvider[K]> {
+    // The problem here is that ReturnType<ServiceProvider[K]> results in
+    // ServiceProviderAnyCursor which includes ServiceProviderChangeStream which
+    // doesn't have readBufferedDocuments or toArray. We can try cast things to
+    // ServiceProviderAbstractCursor, but then that's not assignable to
+    // ServiceProviderAnyCursor. And that's why there's so much casting below.
+    const cursor = (this._sp[key] as any)(...args) as any;
+
+    cursor.next = cursorNext(
+      cursor.next.bind(cursor) as () => Promise<Document | null>
+    );
+    cursor.tryNext = cursorTryNext(
+      cursor.tryNext.bind(cursor) as () => Promise<Document | null>
+    );
+
+    if (cursor.readBufferedDocuments) {
+      cursor.readBufferedDocuments = cursorReadBufferedDocuments(
+        cursor.readBufferedDocuments.bind(cursor) as (
+          number?: number
+        ) => Document[]
+      );
+    }
+    if (cursor.toArray) {
+      cursor.toArray = cursorToArray(
+        cursor.toArray.bind(cursor) as () => Promise<Document[]>
+      );
+    }
+
+    return cursor;
+  };
+}
+
+const customInspectSymbol = Symbol.for('nodejs.util.inspect.custom');
+
+function cursorNext(
+  original: () => Promise<Document | null>
+): () => Promise<Document | null> {
+  return async function (): Promise<Document | null> {
+    const result = await original();
+    if (result) {
+      replaceWithCustomInspect(result);
+    }
+    return result;
+  };
+}
+
+const cursorTryNext = cursorNext;
+
+function cursorReadBufferedDocuments(
+  original: (number?: number) => Document[]
+): (number?: number) => Document[] {
+  return function (number?: number): Document[] {
+    const results = original(number);
+
+    replaceWithCustomInspect(results);
+
+    return results;
+  };
+}
+
+function cursorToArray(
+  original: () => Promise<Document[]>
+): () => Promise<Document[]> {
+  return async function (): Promise<Document[]> {
+    const results = await original();
+
+    replaceWithCustomInspect(results);
+
+    return results;
+  };
+}
+
+function bsonMethod<
+  K extends keyof PickMethodsByReturnType<ServiceProvider, Promise<any>>
+>(
+  key: K
+): (
+  ...args: Parameters<Required<ServiceProvider>[K]>
+) => ReturnType<Required<ServiceProvider>[K]> {
+  return async function (
+    this: DeepInspectServiceProviderWrapper,
+    ...args: Parameters<Required<ServiceProvider>[K]>
+  ): // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+  // @ts-ignore The returntype already contains a promise
+  ReturnType<Required<ServiceProvider>[K]> {
+    const result = await (this._sp[key] as any)(...args);
+    replaceWithCustomInspect(result);
+    return result;
+  };
+}
+
+function forwardedMethod<
+  K extends keyof PickMethodsByReturnType<ServiceProvider, any>
+>(
+  key: K
+): (
+  ...args: Parameters<Required<ServiceProvider>[K]>
+) => ReturnType<Required<ServiceProvider>[K]> {
+  return function (
+    this: DeepInspectServiceProviderWrapper,
+    ...args: Parameters<Required<ServiceProvider>[K]>
+  ): ReturnType<Required<ServiceProvider>[K]> {
+    // not wrapping the result at all because forwardedMethod() is for simple
+    // values only
+    return (this._sp[key] as any)(...args);
+  };
+}
+
+function customDocumentInspect(
+  this: Document,
+  depth: number,
+  inspectOptions: InspectOptions
+) {
+  const newInspectOptions = {
+    ...inspectOptions,
+    depth: Infinity,
+    maxArrayLength: Infinity,
+    maxStringLength: Infinity,
+  };
+
+  // reuse the standard inpect logic for an object without causing infinite
+  // recursion
+  const inspectBackup = (this as any)[customInspectSymbol];
+  delete (this as any)[customInspectSymbol];
+  const result = inspect(this, newInspectOptions);
+  (this as any)[customInspectSymbol] = inspectBackup;
+  return result;
+}
+
+function replaceWithCustomInspect(obj: any) {
+  if (Array.isArray(obj)) {
+    (obj as any)[customInspectSymbol] = customDocumentInspect;
+    for (const item of obj) {
+      replaceWithCustomInspect(item);
+    }
+  } else if (obj && typeof obj === 'object' && obj !== null) {
+    obj[customInspectSymbol] = customDocumentInspect;
+    for (const value of Object.values(obj)) {
+      replaceWithCustomInspect(value);
+    }
+  }
+}

packages/shell-api/src/shell-instance-state.ts

@@ -51,6 +51,7 @@ import type { AutocompletionContext } from '@mongodb-js/mongodb-ts-autocomplete'
 import type { JSONSchema } from 'mongodb-schema';
 import { analyzeDocuments } from 'mongodb-schema';
 import type { BaseCursor } from './abstract-cursor';
+import { DeepInspectServiceProviderWrapper } from './deep-inspect-service-provider-wrapper';
 
 /**
  * The subset of CLI options that is relevant for the shell API's behavior itself.
@@ -203,7 +204,9 @@ export class ShellInstanceState {
     cliOptions: ShellCliOptions = {},
     bsonLibrary: BSONLibrary = initialServiceProvider.bsonLibrary
   ) {
-    this.initialServiceProvider = initialServiceProvider;
+    this.initialServiceProvider = new DeepInspectServiceProviderWrapper(
+      initialServiceProvider
+    );
     this.bsonLibrary = bsonLibrary;
     this.messageBus = messageBus;
     this.shellApi = new ShellApi(this);
@@ -220,11 +223,11 @@ export class ShellInstanceState {
         undefined,
         undefined,
         undefined,
-        initialServiceProvider
+        this.initialServiceProvider
       );
       this.mongos.push(mongo);
       this.currentDb = mongo.getDB(
-        initialServiceProvider.initialDb || DEFAULT_DB
+        this.initialServiceProvider.initialDb || DEFAULT_DB
       );
     } else {
       this.currentDb = new NoDatabase() as DatabaseWithSchema;