added option to restrict view to default branch(es)

Author: Karsten Kraus

src/main/java/argelbargel/jenkins/plugins/gitlab_branch_source/views/GitLabBranchFilter.java

@@ -28,19 +28,24 @@
 import argelbargel.jenkins.plugins.gitlab_branch_source.GitLabSCMBranchHead;
 import argelbargel.jenkins.plugins.gitlab_branch_source.Messages;
 import hudson.Extension;
+import hudson.model.Actionable;
 import hudson.model.Descriptor;
+import hudson.model.Item;
 import hudson.model.TopLevelItem;
 import hudson.model.View;
 import hudson.views.ViewJobFilter;
 import jenkins.scm.api.SCMHead;
+import jenkins.scm.api.metadata.PrimaryInstanceMetadataAction;
 import org.kohsuke.stapler.DataBoundConstructor;
 import org.kohsuke.stapler.DataBoundSetter;
 
 import java.util.List;
 
 
+@SuppressWarnings("unused")
 public class GitLabBranchFilter extends ViewJobFilter {
     private boolean allowMergeRequests = true;
+    private boolean defaultBranchOnly = false;
 
     @DataBoundConstructor
     public GitLabBranchFilter() { /* NOOP */ }
@@ -54,6 +59,16 @@ public boolean getAllowMergeRequests() {
         return allowMergeRequests;
     }
 
+    @DataBoundSetter
+    public void setDefaultBranchOnly(boolean value) {
+        defaultBranchOnly = value;
+    }
+
+    public boolean getDefaultBranchOnly() {
+        return defaultBranchOnly;
+    }
+
+
     @Override
     public List<TopLevelItem> filter(List<TopLevelItem> added, List<TopLevelItem> all, View filteringView) {
         for (TopLevelItem item : all) {
@@ -62,13 +77,21 @@ public List<TopLevelItem> filter(List<TopLevelItem> added, List<TopLevelItem> al
             }
 
             SCMHead head = SCMHead.HeadByItem.findHead(item);
-            if (head instanceof GitLabSCMBranchHead && (allowMergeRequests || !((GitLabSCMBranchHead) head).hasMergeRequest())) {
+            if (head instanceof GitLabSCMBranchHead && filter(item) && filter((GitLabSCMBranchHead) head)) {
                 added.add(item);
             }
         }
         return added;
     }
 
+    private boolean filter(Item item) {
+        return !(item instanceof Actionable) || !defaultBranchOnly || ((Actionable) item).getAction(PrimaryInstanceMetadataAction.class) != null;
+    }
+
+    private boolean filter(GitLabSCMBranchHead head) {
+        return allowMergeRequests || !head.hasMergeRequest();
+    }
+
     @Extension(optional = true)
     public static class DescriptorImpl extends Descriptor<ViewJobFilter> {
         @Override

src/main/java/argelbargel/jenkins/plugins/gitlab_branch_source/views/GitLabMergeRequestFilter.java

@@ -39,6 +39,7 @@
 import java.util.List;
 
 
+@SuppressWarnings("unused")
 public class GitLabMergeRequestFilter extends ViewJobFilter {
     private boolean originOnly = false;
 

src/main/java/argelbargel/jenkins/plugins/gitlab_branch_source/views/GitLabTagFilter.java

@@ -38,6 +38,7 @@
 import java.util.List;
 
 
+@SuppressWarnings("unused")
 public class GitLabTagFilter extends ViewJobFilter {
     @DataBoundConstructor
     public GitLabTagFilter() { /* NOOP */ }

src/main/resources/argelbargel/jenkins/plugins/gitlab_branch_source/views/GitLabBranchFilter/config.jelly

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:f="/lib/form">
+    <f:entry title="${%Show only default branch(es)}" field="defaultBranchOnly">
+        <f:checkbox default="false"/>
+    </f:entry>
     <f:entry title="${%Show Branches with Merge Requests}" field="allowMergeRequests">
         <f:checkbox default="true"/>
     </f:entry>