git: Support timeout option

This requires git plugin version 2.2.3

Change-Id: I24a2bce00e35f74a5c513d02a7bffe05267cd498

jenkins_jobs/modules/scm.py

@@ -96,6 +96,7 @@ remoteName/\*')
       (default 'default')
     :arg str git-config-name: Configure name for Git clone (optional)
     :arg str git-config-email: Configure email for Git clone (optional)
+    :arg str timeout: Timeout for git commands in minutes (optional)
 
     :browser values:
         :auto:
@@ -222,6 +223,13 @@ remoteName/\*')
     if 'local-branch' in data:
         XML.SubElement(scm, 'localBranch').text = data['local-branch']
 
+    if 'timeout' in data:
+        ext = XML.SubElement(scm, 'extensions')
+        co = XML.SubElement(ext,
+                            'hudson.plugins.git.extensions.impl.'
+                            'CheckoutOption')
+        XML.SubElement(co, 'timeout').text = str(data['timeout'])
+
     browser = data.get('browser', 'auto')
     browserdict = {'auto': 'auto',
                    'bitbucketweb': 'BitbucketWeb',

tests/scm/fixtures/git001.xml

@@ -37,6 +37,11 @@
     <scmName/>
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
+    <extensions>
+      <hudson.plugins.git.extensions.impl.CheckoutOption>
+        <timeout>20</timeout>
+      </hudson.plugins.git.extensions.impl.CheckoutOption>
+    </extensions>
     <browser class="hudson.plugins.git.browser.GithubWeb">
       <url>http://github.com/foo/example.git</url>
     </browser>

tests/scm/fixtures/git001.yaml

@@ -6,3 +6,4 @@ scm:
         - stable
       browser: githubweb
       browser-url: http://github.com/foo/example.git
+      timeout: 20