Add support for Clang Scan-Build plugin version 1.7

The Clang Scan-Build plugin release 1.7 adds an option to specify the
directory where the generated reports are expected.

Without this change, builds that have a Scan-Build-Publisher configured
fail with a NPE because the 'reportFolderName' element is missing in
the config.

Reference: https://issues.jenkins-ci.org/browse/JENKINS-18941

Change-Id: Ide3627a58198c81744f9c360f45929a23dce5d23

jenkins_jobs/modules/publishers.py

@@ -4636,6 +4636,8 @@ def scan_build(parser, xml_parent, data):
     :arg int threshold: Threshold for marking builds as unstable (default 0)
     :arg string exclude-paths: Comma separated paths to exclude from reports
         (default '')
+    :arg string report-folder: Folder where generated reports are located
+        (default 'clangScanBuildReports')
 
     Example:
 
@@ -4656,6 +4658,8 @@ def scan_build(parser, xml_parent, data):
     XML.SubElement(p, 'bugThreshold').text = threshold
     XML.SubElement(p, 'clangexcludedpaths').text = str(
         data.get('exclude-paths', ''))
+    XML.SubElement(p, 'reportFolderName').text = str(
+        data.get('report-folder', 'clangScanBuildReports'))
 
 
 def dry(parser, xml_parent, data):

tests/publishers/fixtures/scan-build001.xml

@@ -5,6 +5,7 @@
       <markBuildUnstableWhenThresholdIsExceeded>true</markBuildUnstableWhenThresholdIsExceeded>
       <bugThreshold>0</bugThreshold>
       <clangexcludedpaths>external-lib</clangexcludedpaths>
+      <reportFolderName>scan-build-report</reportFolderName>
     </jenkins.plugins.clangscanbuild.publisher.ClangScanBuildPublisher>
   </publishers>
 </project>

tests/publishers/fixtures/scan-build001.yaml

@@ -3,3 +3,4 @@ publishers:
       mark-unstable: true
       threshold: 0
       exclude-paths: external-lib
+      report-folder: scan-build-report

tests/publishers/fixtures/scan-build002.xml

@@ -5,6 +5,7 @@
       <markBuildUnstableWhenThresholdIsExceeded>false</markBuildUnstableWhenThresholdIsExceeded>
       <bugThreshold>0</bugThreshold>
       <clangexcludedpaths/>
+      <reportFolderName>clangScanBuildReports</reportFolderName>
     </jenkins.plugins.clangscanbuild.publisher.ClangScanBuildPublisher>
   </publishers>
 </project>