fix: fix no argument build_args_envs of api normalizer (#49)

fix no argument build_args_envs of api normalizer

normalizer/core.py

@@ -587,7 +587,7 @@ def normalize(
             docker_file=dockerfile_path,
             build_args={'JINA_VERSION': f'{jina_version}'},
         )
-        if len(build_args_envs.keys()):
+        if build_args_envs and len(build_args_envs.keys()):
             dockerfile.insert_build_args_envs(build_args_envs)
         # if dockerfile.is_multistage():
         #     # Don't support multi-stage Dockerfie Optimization
@@ -608,7 +608,7 @@ def normalize(
         # if len(base_images) > 0:
         #     logger.debug(f'=> use base image: {base_images}')
         #     dockerfile.baseimage = base_images.pop()
-        if len(build_args_envs.keys()):
+        if build_args_envs and len(build_args_envs.keys()):
             dockerfile.insert_build_args_envs(build_args_envs)
 
         dockerfile.add_work_dir()

tests/cases/executor_2/Dockerfile.expect

@@ -0,0 +1,10 @@
+# This file is automatically generated by Jina executor normalizer plugin.
+# It is not intended for manual editing.
+
+FROM jinaai/jina:2-py37-perf
+
+# setup the workspace
+COPY . /workspace
+WORKDIR /workspace
+
+ENTRYPOINT ["jina", "executor", "--uses", "config.yml"]

tests/test_core.py

@@ -114,6 +114,10 @@ def test_get_executor_args(package_path, expected_path):
                 'TOKEN': 'ghp_Nwh9o70GDSzs'
             }
         ),
+        (
+            Path(__file__).parent / 'cases' / 'executor_2',
+            None
+        ),
     ],
 )
 def test_compare_dockerfile_env_vars(package_path, build_args_envs):