From fe7c01a8bd76dff240e74bb770212911e227ba59 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 03 Feb 2012 17:24:51 -0500
Subject: [PATCH] Return to Users page after add/edit team

---
 src/com/gitblit/utils/JGitUtils.java |   94 ++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 93 insertions(+), 1 deletions(-)

diff --git a/src/com/gitblit/utils/JGitUtils.java b/src/com/gitblit/utils/JGitUtils.java
index a540c2a..c80fb8a 100644
--- a/src/com/gitblit/utils/JGitUtils.java
+++ b/src/com/gitblit/utils/JGitUtils.java
@@ -340,7 +340,7 @@
 					String repository = StringUtils.getRelativePath(basePath,
 							file.getAbsolutePath());
 					list.add(repository);
-				} else if (searchSubfolders) {
+				} else if (searchSubfolders && file.canRead()) {
 					// look for repositories in subfolders
 					list.addAll(getRepositoryList(basePath, file, exportAll, searchSubfolders));
 				}
@@ -1156,6 +1156,98 @@
 	}
 
 	/**
+	 * Returns the target of the symbolic HEAD reference for a repository.
+	 * Normally returns a branch reference name, but when HEAD is detached,
+	 * the commit is matched against the known tags. The most recent matching
+	 * tag ref name will be returned if it references the HEAD commit. If
+	 * no match is found, the SHA1 is returned.
+	 *
+	 * @param repository
+	 * @return the ref name or the SHA1 for a detached HEAD
+	 */
+	public static String getHEADRef(Repository repository) {
+		String target = null;
+		try {
+			target = repository.getFullBranch();
+			if (!target.startsWith(Constants.R_HEADS)) {
+				// refers to an actual commit, probably a tag
+				// find latest tag that matches the commit, if any
+				List<RefModel> tagModels = getTags(repository, true, -1);
+				if (tagModels.size() > 0) {
+					RefModel tag = null;
+					Date lastDate = new Date(0);
+					for (RefModel tagModel : tagModels) {
+						if (tagModel.getReferencedObjectId().getName().equals(target) &&
+								tagModel.getDate().after(lastDate)) {
+							tag = tagModel;
+							lastDate = tag.getDate();
+						}
+					}
+					target = tag.getName();
+				}
+			}
+		} catch (Throwable t) {
+			error(t, repository, "{0} failed to get symbolic HEAD target");
+		}
+		return target;
+	}
+	
+	/**
+	 * Sets the symbolic ref HEAD to the specified target ref. The
+	 * HEAD will be detached if the target ref is not a branch.
+	 *
+	 * @param repository
+	 * @param targetRef
+	 * @return true if successful
+	 */
+	public static boolean setHEADtoRef(Repository repository, String targetRef) {
+		try {
+			 // detach HEAD if target ref is not a branch
+			boolean detach = !targetRef.startsWith(Constants.R_HEADS);
+			RefUpdate.Result result;
+			RefUpdate head = repository.updateRef(Constants.HEAD, detach);
+			if (detach) { // Tag
+				RevCommit commit = getCommit(repository, targetRef);
+				head.setNewObjectId(commit.getId());
+				result = head.forceUpdate();
+			} else {
+				result = head.link(targetRef);
+			}
+			switch (result) {
+			case NEW:
+			case FORCED:
+			case NO_CHANGE:
+			case FAST_FORWARD:
+				return true;				
+			default:
+				LOGGER.error(MessageFormat.format("{0} HEAD update to {1} returned result {2}",
+						repository.getDirectory().getAbsolutePath(), targetRef, result));
+			}
+		} catch (Throwable t) {
+			error(t, repository, "{0} failed to set HEAD to {1}", targetRef);
+		}
+		return false;
+	}
+	
+	/**
+	 * Get the full branch and tag ref names for any potential HEAD targets.
+	 *
+	 * @param repository
+	 * @return a list of ref names
+	 */
+	public static List<String> getAvailableHeadTargets(Repository repository) {
+		List<String> targets = new ArrayList<String>();
+		for (RefModel branchModel : JGitUtils.getLocalBranches(repository, true, -1)) {
+			targets.add(branchModel.getName());
+		}
+
+		for (RefModel tagModel : JGitUtils.getTags(repository, true, -1)) {
+			targets.add(tagModel.getName());
+		}
+		return targets;
+	}
+
+	/**
 	 * Returns all refs grouped by their associated object id.
 	 * 
 	 * @param repository

--
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