fix(ecr-assets): exclude option (#4354)

* fix(@aws-cdk/aws-ecr-assets): `exclude` option (#4353)

fixed #4353

* .dockerignore itself should be included
* fixed test path with image.sourceHash

* modified excluded path to be tested

Author: kuwabarahiroshi

packages/@aws-cdk/aws-ecr-assets/lib/image-asset.ts

@@ -75,7 +75,7 @@ export class DockerImageAsset extends Construct implements assets.IAsset {
       throw new Error(`No 'Dockerfile' found in ${dir}`);
     }
 
-    let exclude: string[] = ['.dockerignore'];
+    let exclude: string[] = props.exclude || [];
 
     const ignore = path.join(dir, '.dockerignore');
 

packages/@aws-cdk/aws-ecr-assets/test/dockerignore-image/subdirectory/baz.txt

@@ -197,30 +197,55 @@ export = {
     const app = new App();
     const stack = new Stack(app, 'stack');
 
-    new DockerImageAsset(stack, 'MyAsset', {
+    const image = new DockerImageAsset(stack, 'MyAsset', {
       directory: path.join(__dirname, 'demo-image')
     });
 
     const session = app.synth();
 
-    test.ok(fs.existsSync(path.join(session.directory, 'asset.1a17a141505ac69144931fe263d130f4612251caa4bbbdaf68a44ed0f405439c/Dockerfile')));
-    test.ok(fs.existsSync(path.join(session.directory, 'asset.1a17a141505ac69144931fe263d130f4612251caa4bbbdaf68a44ed0f405439c/index.py')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'Dockerfile')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'index.py')));
     test.done();
   },
 
   'docker directory is staged without files specified in .dockerignore'(test: Test) {
     const app = new App();
     const stack = new Stack(app, 'stack');
 
-    new DockerImageAsset(stack, 'MyAsset', {
+    const image = new DockerImageAsset(stack, 'MyAsset', {
       directory: path.join(__dirname, 'dockerignore-image')
     });
 
     const session = app.synth();
 
-    test.ok(fs.existsSync(path.join(session.directory, `asset.1a17a141505ac69144931fe263d130f4612251caa4bbbdaf68a44ed0f405439c/Dockerfile`)));
-    test.ok(fs.existsSync(path.join(session.directory, 'asset.1a17a141505ac69144931fe263d130f4612251caa4bbbdaf68a44ed0f405439c/index.py')));
-    test.ok(!fs.existsSync(path.join(session.directory, 'asset.1a17a141505ac69144931fe263d130f4612251caa4bbbdaf68a44ed0f405439c/foobar.txt')));
+    // .dockerignore itself should be included in output to be processed during docker build
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, '.dockerignore')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, `Dockerfile`)));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'index.py')));
+    test.ok(!fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'foobar.txt')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'subdirectory')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'subdirectory', 'baz.txt')));
+
+    test.done();
+  },
+
+  'docker directory is staged without files specified in exclude option'(test: Test) {
+    const app = new App();
+    const stack = new Stack(app, 'stack');
+
+    const image = new DockerImageAsset(stack, 'MyAsset', {
+      directory: path.join(__dirname, 'dockerignore-image'),
+      exclude: ['subdirectory']
+    });
+
+    const session = app.synth();
+
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, '.dockerignore')));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, `Dockerfile`)));
+    test.ok(fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'index.py')));
+    test.ok(!fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'foobar.txt')));
+    test.ok(!fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'subdirectory')));
+    test.ok(!fs.existsSync(path.join(session.directory, `asset.${image.sourceHash}`, 'subdirectory', 'baz.txt')));
 
     test.done();
   },