Support for link-to-last-build option in html publisher plugin

Change-Id: Ie3c0c99f3bdd54226e99477ad37983b11f2cf041

jenkins_jobs/modules/publishers.py

@@ -2446,6 +2446,9 @@ def html_publisher(parser, xml_parent, data):
     :arg str files: Specify the pages to display
     :arg bool keep-all: keep HTML reports for each past build (Default False)
     :arg bool allow-missing: Allow missing HTML reports (Default False)
+    :arg bool link-to-last-build: If this and 'keep-all' both are true, it
+        publishes the link on project level even if build failed.
+        (default false)
 
 
     Example:
@@ -2460,6 +2463,8 @@ def html_publisher(parser, xml_parent, data):
     XML.SubElement(ptarget, 'reportName').text = data['name']
     XML.SubElement(ptarget, 'reportDir').text = data['dir']
     XML.SubElement(ptarget, 'reportFiles').text = data['files']
+    XML.SubElement(ptarget, 'alwaysLinkToLastBuild').text = str(
+        data.get('link-to-last-build', False)).lower()
     keep_all = str(data.get('keep-all', False)).lower()
     XML.SubElement(ptarget, 'keepAll').text = keep_all
     allow_missing = str(data.get('allow-missing', False)).lower()

tests/publishers/fixtures/html-publisher001.xml

@@ -7,6 +7,7 @@
           <reportName>some name</reportName>
           <reportDir>path/</reportDir>
           <reportFiles>index.html</reportFiles>
+          <alwaysLinkToLastBuild>true</alwaysLinkToLastBuild>
           <keepAll>true</keepAll>
           <allowMissing>true</allowMissing>
           <wrapperName>htmlpublisher-wrapper.html</wrapperName>

tests/publishers/fixtures/html-publisher001.yaml

@@ -5,3 +5,4 @@ publishers:
       files: "index.html"
       keep-all: true
       allow-missing: true
+      link-to-last-build: true