Display refs/meta/config branch on ProjectBranchesScreen

The refs/meta/config branch was not shown in the ProjectBranchesScreen
since all refs that were not starting with refs/heads/ were filtered
out. The refs/meta/config branch contains important configuration data
for the project and should therefore be displayed along with the other
branches. With this change the refs/meta/config branch is not ignored
anymore and displayed properly in the ProjectBranchesScreen.
Since refs/meta/config is not just any branch, but has a special
meaning to Gerrit it is always displayed at the top below HEAD.

Change-Id: I2b9d89004a15813ef301ce6ea803b5c4e10b7302
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

1 files changed, 20 insertions, 11 deletions

diff --git a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/project/ListBranches.java b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/project/ListBranches.java
index 2762acbc..7be0f668 100644
--- a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/project/ListBranches.java
+++ b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/rpc/project/ListBranches.java
@@ -69,6 +69,7 @@ class ListBranches extends Handler<ListBranchesResult> {
 
     final List<Branch> branches = new ArrayList<Branch>();
     Branch headBranch = null;
+    Branch configBranch = null;
     final Set<String> targets = new HashSet<String>();
 
     final Repository db;
@@ -128,18 +129,13 @@ class ListBranches extends Handler<ListBranchesResult> {
           continue;
         }
 
-        RefControl refControl = pctl.controlForRef(ref.getName());
-
-        if (ref.getName().startsWith(Constants.R_HEADS)
-            && refControl.isVisible()) {
-          final Branch b = createBranch(ref.getName());
-          if (ref.getObjectId() != null) {
-            b.setRevision(new RevId(ref.getObjectId().name()));
+        final RefControl refControl = pctl.controlForRef(ref.getName());
+        if (refControl.isVisible()) {
+          if (ref.getName().startsWith(Constants.R_HEADS)) {
+            branches.add(createBranch(ref, refControl, targets));
+          } else if (GitRepositoryManager.REF_CONFIG.equals(ref.getName())) {
+            configBranch = createBranch(ref, refControl, targets);
           }
-
-          b.setCanDelete(!targets.contains(ref.getName()) && refControl.canDelete());
-
-          branches.add(b);
         }
       }
     } finally {
@@ -151,12 +147,25 @@ class ListBranches extends Handler<ListBranchesResult> {
         return a.getName().compareTo(b.getName());
       }
     });
+    if (configBranch != null) {
+      branches.add(0, configBranch);
+    }
     if (headBranch != null) {
       branches.add(0, headBranch);
     }
     return new ListBranchesResult(branches, pctl.canAddRefs(), false);
   }
 
+  private Branch createBranch(final Ref ref, final RefControl refControl,
+      final Set<String> targets) {
+    final Branch b = createBranch(ref.getName());
+    if (ref.getObjectId() != null) {
+      b.setRevision(new RevId(ref.getObjectId().name()));
+    }
+    b.setCanDelete(!targets.contains(ref.getName()) && refControl.canDelete());
+    return b;
+  }
+
   private Branch createBranch(final String name) {
     return new Branch(new Branch.NameKey(projectName, name));
   }