From eebfb9c961462ed0b6ad19d070bbb9b321651d95 Mon Sep 17 00:00:00 2001
From: Vsevolod Fedorov <vsevolod.fedorov@gmail.com>
Date: Wed, 12 Apr 2023 11:21:31 +0300
Subject: [PATCH] Do not fail on empty YAML file

Change-Id: Ia12862f902c2f0b638fcbff798553ca404d81e24
---
 jenkins_jobs/loader.py                                 | 2 ++
 tests/yamlparser/job_fixtures/empty_template_file.yaml | 2 ++
 2 files changed, 4 insertions(+)
 create mode 100644 tests/yamlparser/job_fixtures/empty_template_file.yaml

diff --git a/jenkins_jobs/loader.py b/jenkins_jobs/loader.py
index d6708d2a9..113266ba2 100644
--- a/jenkins_jobs/loader.py
+++ b/jenkins_jobs/loader.py
@@ -119,6 +119,8 @@ def load_files(config, roots, path_list):
             data = loader.load_fp(path)
         else:
             data = loader.load_path(path)
+        if data is None:
+            continue
         if not isinstance(data, list):
             raise JenkinsJobsException(
                 f"The topmost collection must be a list, but is: {data}",
diff --git a/tests/yamlparser/job_fixtures/empty_template_file.yaml b/tests/yamlparser/job_fixtures/empty_template_file.yaml
new file mode 100644
index 000000000..4dbc92bb0
--- /dev/null
+++ b/tests/yamlparser/job_fixtures/empty_template_file.yaml
@@ -0,0 +1,2 @@
+# Nothing is here.
+# Just check that jenkins-jobs do not fail on YAML file with no contents.