Combine lines again.

Author: purple4reina

ci/input_files/build.yaml.tpl

@@ -178,9 +178,9 @@ publish-layer-{{ $environment_name }} ({{ $runtime.name }}-{{ $runtime.arch }}):
     - EXTERNAL_ID_NAME={{ $environment.external_id }} ROLE_TO_ASSUME={{ $environment.role_to_assume }} AWS_ACCOUNT={{ $environment.account }} source ./ci/get_secrets.sh
   script:
     - STAGE={{ $environment_name }} PYTHON_VERSION={{ $runtime.python_version }} ARCH={{ $runtime.arch }} ./ci/publish_layers.sh | tee publish.log
-    - layer_arn="$(grep 'Published arn' publish.log | grep -oE 'arn:aws:lambda:.*:\d+')"
-    - echo "Found published arn: $layer_arn"
-    - echo "PYTHON_{{ $runtime.name | strings.Trim "python" }}_VERSION=$layer_arn" > {{ $dotenv }}
+    - echo "PYTHON_{{ $runtime.name | strings.Trim "python" }}_VERSION=$(grep 'Published arn' publish.log | grep -oE 'arn:aws:lambda:.*:\d+')" > {{ $dotenv }}
+
+{{/* Extract the arn from the publish log to be used as envvar in e2e tests */}}
 
 {{- end }}