Add support for the "Gitlab Logo Plugin"

This adds support for the "Gitlab Logo" plugin
to the properties module.

Change-Id: I7bcffbcb31e478da3e4dd43dedb47e13d6364802

jenkins_jobs/modules/properties.py

@@ -206,6 +206,28 @@ def gitlab(registry, xml_parent, data):
     helpers.convert_mapping_to_xml(gitlab, data, mapping, fail_required=True)
 
 
+def gitlab_logo(registry, xml_parent, data):
+    """yaml: gitlab-logo
+    Configures the GitLab-Logo Plugin.
+    Requires the Jenkins :jenkins-wiki:`GitLab Logo Plugin
+    <GitLab+Logo+Plugin>`.
+
+    :arg str repository-name: the GitLab repository name (required)
+
+    Example:
+
+    .. literalinclude:: /../../tests/properties/fixtures/gitlab-logo.yaml
+       :language: yaml
+    """
+    logo = XML.SubElement(xml_parent,
+                          'org.jenkinsci.plugins.gitlablogo.'
+                          'GitlabLogoProperty')
+    mapping = [
+        ('repository-name', 'repositoryName', None)
+    ]
+    helpers.convert_mapping_to_xml(logo, data, mapping, fail_required=True)
+
+
 def disk_usage(registry, xml_parent, data):
     """yaml: disk-usage
     Enables the Disk Usage Plugin.

tests/properties/fixtures/gitlab-logo.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <properties>
+    <org.jenkinsci.plugins.gitlablogo.GitlabLogoProperty>
+      <repositoryName>gitlab-repository-name</repositoryName>
+    </org.jenkinsci.plugins.gitlablogo.GitlabLogoProperty>
+  </properties>
+</project>

tests/properties/fixtures/gitlab-logo.yaml

@@ -0,0 +1,3 @@
+properties:
+  - gitlab-logo:
+      repository-name: gitlab-repository-name