From 9129381d7a55c0dfae625b2b07fe1e04409df6a3 Mon Sep 17 00:00:00 2001
From: Philip L. McMahon <philip.l.mcmahon@gmail.com>
Date: Fri, 27 Jan 2012 00:20:21 -0500
Subject: [PATCH] Allow administrative modification of the default branch/tag referenced by HEAD.
---
src/com/gitblit/utils/JGitUtils.java | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 44 insertions(+), 0 deletions(-)
diff --git a/src/com/gitblit/utils/JGitUtils.java b/src/com/gitblit/utils/JGitUtils.java
index a540c2a..0750b07 100644
--- a/src/com/gitblit/utils/JGitUtils.java
+++ b/src/com/gitblit/utils/JGitUtils.java
@@ -1156,6 +1156,50 @@
}
/**
+ * Returns the default HEAD for a repository. Normally returns the ref HEAD points to, but if HEAD points to nothing
+ * it returns null.
+ *
+ * @param repository
+ * @return the refmodel for HEAD or null
+ */
+ public static RefModel getDefaultHead(Repository repository) {
+ RefModel ref = null;
+ try {
+ Ref head = repository.getRef(Constants.HEAD);
+ if (head != null) {
+ Ref target = head.getTarget();
+ RevWalk rw = new RevWalk(repository);
+ ObjectId targetId = target.getObjectId();
+ if (targetId != null) {
+ RevObject object = rw.parseAny(targetId);
+ ref = new RefModel(target.getName(), target, object);
+ }
+ rw.dispose();
+ }
+ } catch (Throwable t) {
+ LOGGER.error("Failed to get default head!", t);
+ }
+ return ref;
+ }
+
+ /**
+ * Sets the default HEAD symbolic ref for a repository.
+ *
+ * @param repository
+ * @param ref
+ */
+ public static void setDefaultHead(Repository repository, Ref ref) {
+ try {
+ RefUpdate head = repository.updateRef(Constants.HEAD);
+ RefUpdate.Result result = head.link(ref.getName());
+ LOGGER.debug(MessageFormat.format("Set repository {0} default head to {1} ({2})",
+ repository.getDirectory().getAbsolutePath(), ref.getName(), result));
+ } catch (IOException e) {
+ LOGGER.error("Failed to set default head!", e);
+ }
+ }
+
+ /**
* Returns all refs grouped by their associated object id.
*
* @param repository
--
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