multibranch: Add lfs pull trait to bitbucket scm

Change-Id: Ibf89cdfbfb6fc791f92a21d07442475325f46a3c

jenkins_jobs/modules/project_multibranch.py

@@ -367,6 +367,8 @@ def bitbucket_scm(xml_parent, data):
 
     :arg bool discover-tags: Discovers tags on the repository.
         (default false)
+    :arg bool lfs: Git LFS pull after checkout.
+        (default false)
     :arg str server-url: The address of the bitbucket server. (optional)
     :arg str head-filter-regex: A regular expression for filtering
         discovered source branches. Requires the :jenkins-plugins:`SCM API
@@ -484,6 +486,17 @@ def bitbucket_scm(xml_parent, data):
         XML.SubElement(
             traits, "com.cloudbees.jenkins.plugins.bitbucket.TagDiscoveryTrait"
         )
+
+    if data.get("lfs", False):
+        gitlfspull = XML.SubElement(
+            traits, "jenkins.plugins.git.traits.GitLFSPullTrait", {"plugin": "git"}
+        )
+        XML.SubElement(
+            gitlfspull,
+            "extension",
+            {"class": "hudson.plugins.git.extensions.impl.GitLFSPull"},
+        )
+
     if data.get("head-filter-regex", None):
         rshf = XML.SubElement(traits, "jenkins.scm.impl.trait.RegexSCMHeadFilterTrait")
         XML.SubElement(rshf, "regex").text = data.get("head-filter-regex")

tests/multibranch/fixtures/scm_bitbucket_full.xml

@@ -39,6 +39,9 @@
           <serverUrl>https://bitbucket.example.com:8080</serverUrl>
           <traits>
             <com.cloudbees.jenkins.plugins.bitbucket.TagDiscoveryTrait/>
+            <jenkins.plugins.git.traits.GitLFSPullTrait plugin="git">
+              <extension class="hudson.plugins.git.extensions.impl.GitLFSPull"/>
+            </jenkins.plugins.git.traits.GitLFSPullTrait>
             <jenkins.scm.impl.trait.RegexSCMHeadFilterTrait>
               <regex>master|\d+\.\d+</regex>
             </jenkins.scm.impl.trait.RegexSCMHeadFilterTrait>

tests/multibranch/fixtures/scm_bitbucket_full.yaml

@@ -8,6 +8,7 @@ scm:
         repo: 'test'
         server-url: https://bitbucket.example.com:8080
         discover-tags: true
+        lfs: true
         head-filter-regex: 'master|\d+\.\d+'
         discover-pr-origin: headOnly
         discover-branch: all