adding in ability to define CodeCommit artifact format

docs/providers-guide.md

@@ -87,6 +87,10 @@ Provider type: `codecommit`.
   >
   > By default, it will trigger on changes using the event triggered by
   > CodeCommit when an update to the repository took place.
+- *output_artifact_format* - *(String)* default CODE_ZIP 
+  > The output artifact format. Values can be either CODEBUILD_CLONE_REF or CODE_ZIP. If unspecified, the default is CODE_ZIP.
+  > If you are using CODEBUILD_CLONE_REF, you need to ensure that the IAM role passed in via the *role* property has the CodeCommit:GitPull permission. 
+  > NB: The CODEBUILD_CLONE_REF value can only be used by CodeBuild downstream actions. 
 
 ### GitHub
 

src/lambda_codebase/initial_commit/bootstrap_repository/adf-build/shared/cdk/cdk_constructs/adf_codepipeline.py

@@ -247,14 +247,18 @@ def _generate_configuration(self): #pylint: disable=R0912, R0911, R0915
                                         'deployment_group_name')
             }
         if self.provider == "CodeCommit":
-            return {
+            props =  {
                 "BranchName": self.map_params['default_providers']['source'].get('properties', {}).get('branch', 'master'),
                 "RepositoryName": self.map_params['default_providers']['source'].get('properties', {}).get('repository', {}) or self.map_params['name'],
                 "PollForSourceChanges": (
                     self.map_params['default_providers']['source'].get('properties', {}).get('trigger_on_changes', True)
                     and self.map_params['default_providers']['source'].get('properties', {}).get('poll_for_changes', False)
                 )
             }
+            output_artifact_format = self.map_params['default_providers']['source'].get('properties', {}).get('output_artifact_format', None)
+            if output_artifact_format:
+                props["OutputArtifactFormat"] = output_artifact_format
+            return props
         raise Exception("{0} is not a valid provider".format(self.provider))
 
     def _generate_codepipeline_access_role(self): #pylint: disable=R0911

src/lambda_codebase/initial_commit/bootstrap_repository/adf-build/shared/cdk/cdk_stacks/tests/test_pipeline_creation.py

@@ -140,3 +140,54 @@ def test_pipeline_creation_outputs_as_expected_when_source_is_codecommit_and_bui
     assert build_stage_action['ActionTypeId']['Provider'] == "CodeBuild"
 
     assert len(build_stage['Actions']) == 1
+
+def test_pipeline_creation_outputs_as_expected_when_source_is_codecommit_with_codebuild_clone_ref_and_build_is_codebuild():
+    region_name = "eu-central-1"
+    acount_id = "123456789012"
+
+    stack_input = {
+        "input": {"params": {}, "default_providers": {}, "regions": {}},
+        "ssm_params": {"fake-region": {}},
+    }
+
+    stack_input["input"]["name"] = "test-stack"
+
+    stack_input["input"]["default_providers"]["source"] = {
+        "provider": "codecommit",
+        "properties": {"account_id": "123456789012", "output_artifact_format": "CODEBUILD_CLONE_REF"},
+    }
+    stack_input["input"]["default_providers"]["build"] = {
+        "provider": "codebuild",
+        "properties": {"account_id": "123456789012"},
+    }
+
+    stack_input["ssm_params"][region_name] = {
+        "modules": "fake-bucket-name",
+        "kms": f"arn:aws:kms:{region_name}:{acount_id}:key/my-unique-kms-key-id",
+    }
+    app = core.App()
+    PipelineStack(app, stack_input)
+
+    cloud_assembly = app.synth()
+    resources = {k[0:-8]: v for k, v in cloud_assembly.stacks[0].template['Resources'].items()}
+    code_pipeline = resources['codepipeline']
+    assert code_pipeline['Type'] == "AWS::CodePipeline::Pipeline"
+    assert len(code_pipeline["Properties"]["Stages"]) == 2
+
+    source_stage = code_pipeline['Properties']["Stages"][0]
+    assert len(source_stage['Actions']) == 1
+
+    source_stage_action = source_stage['Actions'][0]
+    assert source_stage_action['ActionTypeId']['Category'] == "Source"
+    assert source_stage_action['ActionTypeId']['Owner'] == "AWS"
+    assert source_stage_action['ActionTypeId']['Provider'] == "CodeCommit"
+    assert source_stage_action['Configuration']['OutputArtifactFormat'] == "CODEBUILD_CLONE_REF"
+
+    build_stage = code_pipeline['Properties']["Stages"][1]
+    build_stage_action = build_stage['Actions'][0]
+    assert build_stage_action['ActionTypeId']['Category'] == "Build"
+    assert build_stage_action['ActionTypeId']['Owner'] == "AWS"
+    assert build_stage_action['ActionTypeId']['Provider'] == "CodeBuild"
+
+    assert len(build_stage['Actions']) == 1
+

src/lambda_codebase/initial_commit/bootstrap_repository/adf-build/shared/schema_validation.py

@@ -51,6 +51,7 @@
     Optional("owner"): str,
     Optional("role"): str,
     Optional("trigger_on_changes"): bool,
+    Optional("output_artifact_format", default=None): Or(str, None)
 }
 CODECOMMIT_SOURCE = {
     "provider": 'codecommit',