fix(core): ENOTDIR invalid cwd on "cdk deploy"

packages/@aws-cdk/aws-lambda-nodejs/README.md

@@ -148,7 +148,7 @@ new lambda.NodejsFunction(this, 'my-handler', {
     },
     logLevel: LogLevel.SILENT, // defaults to LogLevel.WARNING
     keepNames: true, // defaults to false
-    tsconfig: 'custom-tsconfig.json' // use custom-tsconfig.json instead of default,
+    tsconfig: 'custom-tsconfig.json' // use custom-tsconfig.json instead of default, 
     metafile: true, // include meta file, defaults to false
     banner : '/* comments */', // by default no comments are passed
     footer : '/* comments */', // by default no comments are passed
@@ -216,7 +216,7 @@ Use `bundling.dockerImage` to use a custom Docker bundling image:
 ```ts
 new lambda.NodejsFunction(this, 'my-handler', {
   bundling: {
-    dockerImage: cdk.DockerImage.fromBuild('/path/to/Dockerfile'),
+    dockerImage: cdk.BundlingDockerImage.fromAsset('/path/to/Dockerfile'),
   },
 });
 ```

packages/@aws-cdk/aws-lambda-nodejs/test/bundling.test.ts

@@ -20,7 +20,7 @@ beforeEach(() => {
   getEsBuildVersionMock.mockReturnValue('0.8.8');
   fromAssetMock.mockReturnValue({
     image: 'built-image',
-    cp: () => 'dest-path',
+    cp: () => {},
     run: () => {},
     toJSON: () => 'built-image',
   });

packages/@aws-cdk/aws-lambda/README.md

@@ -36,9 +36,6 @@ runtime code.
  * `lambda.Code.fromAsset(path)` - specify a directory or a .zip file in the local
    filesystem which will be zipped and uploaded to S3 before deployment. See also
    [bundling asset code](#bundling-asset-code).
- * `lambda.Code.fromDockerBuild(path, options)` - use the result of a Docker
-   build as code. The runtime code is expected to be located at `/asset` in the
-   image and will be zipped and uploaded to S3 as an asset.
 
 The following example shows how to define a Python function and deploy the code
 from the local directory `my-lambda-handler` to it:
@@ -453,7 +450,7 @@ new lambda.Function(this, 'Function', {
     bundling: {
       image: lambda.Runtime.PYTHON_3_6.bundlingDockerImage,
       command: [
-        'bash', '-c',
+        'bash', '-c', 
         'pip install -r requirements.txt -t /asset-output && cp -au . /asset-output'
       ],
     },
@@ -465,16 +462,16 @@ new lambda.Function(this, 'Function', {
 
 Runtimes expose a `bundlingDockerImage` property that points to the [AWS SAM](https://github.com/awslabs/aws-sam-cli) build image.
 
-Use `cdk.DockerImage.fromRegistry(image)` to use an existing image or
-`cdk.DockerImage.fromBuild(path)` to build a specific image:
+Use `cdk.BundlingDockerImage.fromRegistry(image)` to use an existing image or
+`cdk.BundlingDockerImage.fromAsset(path)` to build a specific image:
 
 ```ts
 import * as cdk from '@aws-cdk/core';
 
 new lambda.Function(this, 'Function', {
   code: lambda.Code.fromAsset('/path/to/handler', {
     bundling: {
-      image: cdk.DockerImage.fromBuild('/path/to/dir/with/DockerFile', {
+      image: cdk.BundlingDockerImage.fromAsset('/path/to/dir/with/DockerFile', {
         buildArgs: {
           ARG1: 'value1',
         },

packages/@aws-cdk/aws-lambda/lib/code.ts

@@ -57,22 +57,6 @@ export abstract class Code {
     return new AssetCode(path, options);
   }
 
-  /**
-   * Loads the function code from an asset created by a Docker build.
-   *
-   * By defaut, the asset is expected to be located at `/asset` in the
-   * image.
-   *
-   * @param path The path to the directory containing the Docker file
-   * @param options Docker build options
-   */
-  public static fromDockerBuild(path: string, options: DockerBuildAssetOptions = {}): AssetCode {
-    const assetPath = cdk.DockerImage
-      .fromBuild(path, options)
-      .cp(options.imagePath ?? '/asset', options.outputPath);
-    return new AssetCode(assetPath);
-  }
-
   /**
    * DEPRECATED
    * @deprecated use `fromAsset`
@@ -504,24 +488,3 @@ export class AssetImageCode extends Code {
     };
   }
 }
-
-/**
- * Options when creating an asset from a Docker build.
- */
-export interface DockerBuildAssetOptions extends cdk.DockerBuildOptions {
-  /**
-   * The path in the Docker image where the asset is located after the build
-   * operation.
-   *
-   * @default /asset
-   */
-  readonly imagePath?: string;
-
-  /**
-   * The path on the local filesystem where the asset will be copied
-   * using `docker cp`.
-   *
-   * @default - a unique temporary directory in the system temp directory
-   */
-  readonly outputPath?: string;
-}

packages/@aws-cdk/aws-lambda/test/code.test.ts

@@ -327,29 +327,6 @@ describe('code', () => {
       });
     });
   });
-
-  describe('lambda.Code.fromDockerBuild', () => {
-    test('can use the result of a Docker build as an asset', () => {
-      // given
-      const stack = new cdk.Stack();
-      stack.node.setContext(cxapi.ASSET_RESOURCE_METADATA_ENABLED_CONTEXT, true);
-
-      // when
-      new lambda.Function(stack, 'Fn', {
-        code: lambda.Code.fromDockerBuild(path.join(__dirname, 'docker-build-lambda')),
-        handler: 'index.handler',
-        runtime: lambda.Runtime.NODEJS_12_X,
-      });
-
-      // then
-      expect(stack).toHaveResource('AWS::Lambda::Function', {
-        Metadata: {
-          [cxapi.ASSET_RESOURCE_METADATA_PATH_KEY]: 'asset.38cd320fa97b348accac88e48d9cede4923f7cab270ce794c95a665be83681a8',
-          [cxapi.ASSET_RESOURCE_METADATA_PROPERTY_KEY]: 'Code',
-        },
-      }, ResourcePart.CompleteDefinition);
-    });
-  });
 });
 
 function defineFunction(code: lambda.Code, runtime: lambda.Runtime = lambda.Runtime.NODEJS_10_X) {

packages/@aws-cdk/aws-s3-assets/README.md

@@ -88,8 +88,8 @@ The following example uses custom asset bundling to convert a markdown file to h
 
 [Example of using asset bundling](./test/integ.assets.bundling.lit.ts).
 
-The bundling docker image (`image`) can either come from a registry (`DockerImage.fromRegistry`)
-or it can be built from a `Dockerfile` located inside your project (`DockerImage.fromBuild`).
+The bundling docker image (`image`) can either come from a registry (`BundlingDockerImage.fromRegistry`)
+or it can be built from a `Dockerfile` located inside your project (`BundlingDockerImage.fromAsset`).
 
 You can set the `CDK_DOCKER` environment variable in order to provide a custom
 docker program to execute. This may sometime be needed when building in
@@ -114,7 +114,7 @@ new assets.Asset(this, 'BundledAsset', {
       },
     },
     // Docker bundling fallback
-    image: DockerImage.fromRegistry('alpine'),
+    image: BundlingDockerImage.fromRegistry('alpine'),
     entrypoint: ['/bin/sh', '-c'],
     command: ['bundle'],
   },
@@ -124,27 +124,6 @@ new assets.Asset(this, 'BundledAsset', {
 Although optional, it's recommended to provide a local bundling method which can
 greatly improve performance.
 
-If the bundling output contains a single archive file (zip or jar) it will be
-uploaded to S3 as-is and will not be zipped. Otherwise the contents of the
-output directory will be zipped and the zip file will be uploaded to S3. This
-is the default behavior for `bundling.outputType` (`BundlingOutput.AUTO_DISCOVER`).
-
-Use `BundlingOutput.NOT_ARCHIVED` if the bundling output must always be zipped:
-
-```ts
-const asset = new assets.Asset(this, 'BundledAsset', {
-  path: '/path/to/asset',
-  bundling: {
-    image: DockerImage.fromRegistry('alpine'),
-    command: ['command-that-produces-an-archive.sh'],
-    outputType: BundlingOutput.NOT_ARCHIVED, // Bundling output will be zipped even though it produces a single archive file.
-  },
-});
-```
-
-Use `BundlingOutput.ARCHIVED` if the bundling output contains a single archive file and
-you don't want it to be zippped.
-
 ## CloudFormation Resource Metadata
 
 > NOTE: This section is relevant for authors of AWS Resource Constructs.

packages/@aws-cdk/aws-s3-assets/lib/asset.ts

@@ -1,3 +1,4 @@
+import * as fs from 'fs';
 import * as path from 'path';
 import * as assets from '@aws-cdk/assets';
 import * as iam from '@aws-cdk/aws-iam';
@@ -12,6 +13,8 @@ import { toSymlinkFollow } from './compat';
 // eslint-disable-next-line no-duplicate-imports, import/order
 import { Construct as CoreConstruct } from '@aws-cdk/core';
 
+const ARCHIVE_EXTENSIONS = ['.zip', '.jar'];
+
 export interface AssetOptions extends assets.CopyOptions, cdk.AssetOptions {
   /**
    * A list of principals that should be able to read this asset from S3.
@@ -136,12 +139,17 @@ export class Asset extends CoreConstruct implements cdk.IAsset {
 
     this.assetPath = staging.relativeStagedPath(stack);
 
-    this.isFile = staging.packaging === cdk.FileAssetPackaging.FILE;
+    const packaging = determinePackaging(staging.sourcePath);
+
+    this.isFile = packaging === cdk.FileAssetPackaging.FILE;
 
-    this.isZipArchive = staging.isArchive;
+    // sets isZipArchive based on the type of packaging and file extension
+    this.isZipArchive = packaging === cdk.FileAssetPackaging.ZIP_DIRECTORY
+      ? true
+      : ARCHIVE_EXTENSIONS.some(ext => staging.sourcePath.toLowerCase().endsWith(ext));
 
     const location = stack.synthesizer.addFileAsset({
-      packaging: staging.packaging,
+      packaging,
       sourceHash: this.sourceHash,
       fileName: this.assetPath,
     });
@@ -202,3 +210,19 @@ export class Asset extends CoreConstruct implements cdk.IAsset {
     this.bucket.grantRead(grantee);
   }
 }
+
+function determinePackaging(assetPath: string): cdk.FileAssetPackaging {
+  if (!fs.existsSync(assetPath)) {
+    throw new Error(`Cannot find asset at ${assetPath}`);
+  }
+
+  if (fs.statSync(assetPath).isDirectory()) {
+    return cdk.FileAssetPackaging.ZIP_DIRECTORY;
+  }
+
+  if (fs.statSync(assetPath).isFile()) {
+    return cdk.FileAssetPackaging.FILE;
+  }
+
+  throw new Error(`Asset ${assetPath} is expected to be either a directory or a regular file`);
+}

packages/@aws-cdk/core/lib/asset-staging.ts

@@ -5,8 +5,8 @@ import * as cxapi from '@aws-cdk/cx-api';
 import { Construct } from 'constructs';
 import * as fs from 'fs-extra';
 import * as minimatch from 'minimatch';
-import { AssetHashType, AssetOptions, FileAssetPackaging } from './assets';
-import { BundlingOptions, BundlingOutput } from './bundling';
+import { AssetHashType, AssetOptions } from './assets';
+import { BundlingOptions } from './bundling';
 import { FileSystem, FingerprintOptions } from './fs';
 import { Names } from './names';
 import { Cache } from './private/cache';
@@ -17,8 +17,6 @@ import { Stage } from './stage';
 // eslint-disable-next-line
 import { Construct as CoreConstruct } from './construct-compat';
 
-const ARCHIVE_EXTENSIONS = ['.zip', '.jar'];
-
 /**
  * A previously staged asset
  */
@@ -140,9 +138,6 @@ export class AssetStaging extends CoreConstruct {
 
   private readonly cacheKey: string;
 
-  private _packaging = FileAssetPackaging.ZIP_DIRECTORY;
-  private _isArchive = true;
-
   constructor(scope: Construct, id: string, props: AssetStagingProps) {
     super(scope, id);
 
@@ -208,20 +203,6 @@ export class AssetStaging extends CoreConstruct {
     return this.assetHash;
   }
 
-  /**
-   * How this asset should be packaged.
-   */
-  public get packaging(): FileAssetPackaging {
-    return this._packaging;
-  }
-
-  /**
-   * Whether this asset is an archive (zip or jar).
-   */
-  public get isArchive(): boolean {
-    return this._isArchive;
-  }
-
   /**
    * Return the path to the staged asset, relative to the Cloud Assembly (manifest) directory of the given stack
    *
@@ -300,16 +281,11 @@ export class AssetStaging extends CoreConstruct {
     const bundleDir = this.determineBundleDir(this.assetOutdir, assetHash);
     this.bundle(bundling, bundleDir);
 
-    // Check bundling output content and determine if we will need to archive
-    const bundlingOutputType = bundling.outputType ?? BundlingOutput.AUTO_DISCOVER;
-    const bundledAsset = determineBundledAsset(bundleDir, bundlingOutputType);
-    this._packaging = bundledAsset.packaging;
-
     // Calculate assetHash afterwards if we still must
-    assetHash = assetHash ?? this.calculateHash(this.hashType, bundling, bundledAsset.path);
-    const stagedPath = path.resolve(this.assetOutdir, renderAssetFilename(assetHash, bundledAsset.extension));
+    assetHash = assetHash ?? this.calculateHash(this.hashType, bundling, bundleDir);
+    const stagedPath = path.resolve(this.assetOutdir, renderAssetFilename(assetHash));
 
-    this.stageAsset(bundledAsset.path, stagedPath, 'move');
+    this.stageAsset(bundleDir, stagedPath, 'move');
     return { assetHash, stagedPath };
   }
 
@@ -347,8 +323,6 @@ export class AssetStaging extends CoreConstruct {
     const stat = fs.statSync(sourcePath);
     if (stat.isFile()) {
       fs.copyFileSync(sourcePath, targetPath);
-      this._packaging = FileAssetPackaging.FILE;
-      this._isArchive = ARCHIVE_EXTENSIONS.includes(path.extname(sourcePath).toLowerCase());
     } else if (stat.isDirectory()) {
       fs.mkdirSync(targetPath);
       FileSystem.copyDirectory(sourcePath, targetPath, this.fingerprintOptions);
@@ -528,57 +502,3 @@ function sortObject(object: { [key: string]: any }): { [key: string]: any } {
   }
   return ret;
 }
-
-/**
- * Returns the single archive file of a directory or undefined
- */
-function singleArchiveFile(directory: string): string | undefined {
-  if (!fs.existsSync(directory)) {
-    throw new Error(`Directory ${directory} does not exist.`);
-  }
-
-  if (!fs.statSync(directory).isDirectory()) {
-    throw new Error(`${directory} is not a directory.`);
-  }
-
-  const content = fs.readdirSync(directory);
-  if (content.length === 1) {
-    const file = path.join(directory, content[0]);
-    const extension = path.extname(content[0]).toLowerCase();
-    if (fs.statSync(file).isFile() && ARCHIVE_EXTENSIONS.includes(extension)) {
-      return file;
-    }
-  }
-
-  return undefined;
-}
-
-interface BundledAsset {
-  path: string,
-  packaging: FileAssetPackaging,
-  extension?: string
-}
-
-/**
- * Returns the bundled asset to use based on the content of the bundle directory
- * and the type of output.
- */
-function determineBundledAsset(bundleDir: string, outputType: BundlingOutput): BundledAsset {
-  const archiveFile = singleArchiveFile(bundleDir);
-
-  // auto-discover means that if there is an archive file, we take it as the
-  // bundle, otherwise, we will archive here.
-  if (outputType === BundlingOutput.AUTO_DISCOVER) {
-    outputType = archiveFile ? BundlingOutput.ARCHIVED : BundlingOutput.NOT_ARCHIVED;
-  }
-
-  switch (outputType) {
-    case BundlingOutput.NOT_ARCHIVED:
-      return { path: bundleDir, packaging: FileAssetPackaging.ZIP_DIRECTORY };
-    case BundlingOutput.ARCHIVED:
-      if (!archiveFile) {
-        throw new Error('Bundling output directory is expected to include only a single .zip or .jar file when `output` is set to `ARCHIVED`');
-      }
-      return { path: archiveFile, packaging: FileAssetPackaging.FILE, extension: path.extname(archiveFile) };
-  }
-}