Add support for github commit status pending

Introduced in the github plugin at version 1.10:
'Build step to set Github commit status as "pending"'

Change-Id: I6c586ae44563608f095fff1eb65395d0338d7cb4

jenkins_jobs/modules/builders.py

@@ -1745,3 +1745,17 @@ def dsl(parser, xml_parent, data):
 
     XML.SubElement(dsl, 'additionalClasspath').text = data.get(
         'additional-classpath')
+
+
+def github_notifier(parser, xml_parent, data):
+    """yaml: github-notifier
+    Set pending build status on Github commit.
+    Requires the Jenkins `Github Plugin.
+    <https://wiki.jenkins-ci.org/display/JENKINS/GitHub+Plugin>`_
+
+    Example:
+
+    .. literalinclude:: /../../tests/builders/fixtures/github-notifier.yaml
+    """
+    XML.SubElement(xml_parent,
+                   'com.cloudbees.jenkins.GitHubSetCommitStatusBuilder')

setup.cfg

@@ -54,6 +54,7 @@ jenkins_jobs.builders =
     critical-block-start=jenkins_jobs.modules.builders:critical_block_start
     critical-block-end=jenkins_jobs.modules.builders:critical_block_end
     dsl=jenkins_jobs.modules.builders:dsl
+    github-notifier=jenkins_jobs.modules.builders:github_notifier
     gradle=jenkins_jobs.modules.builders:gradle
     grails=jenkins_jobs.modules.builders:grails
     groovy=jenkins_jobs.modules.builders:groovy

tests/builders/fixtures/github-notifier.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <builders>
+    <com.cloudbees.jenkins.GitHubSetCommitStatusBuilder/>
+  </builders>
+</project>

tests/builders/fixtures/github-notifier.yaml

@@ -0,0 +1,2 @@
+builders:
+  - github-notifier