From aa61fc86db4f5ebf645ecf69c6f5ec36f2973e5a Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 21 Feb 2014 11:14:47 -0500
Subject: [PATCH] Add GO launch parameter to specify daily, rolling log file generation

---
 src/main/java/com/gitblit/utils/RefLogUtils.java |  135 ++++++++++++++++++++++++++++++++------------
 1 files changed, 98 insertions(+), 37 deletions(-)

diff --git a/src/main/java/com/gitblit/utils/RefLogUtils.java b/src/main/java/com/gitblit/utils/RefLogUtils.java
index 73b7146..d19e892 100644
--- a/src/main/java/com/gitblit/utils/RefLogUtils.java
+++ b/src/main/java/com/gitblit/utils/RefLogUtils.java
@@ -20,6 +20,7 @@
 import java.text.MessageFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
@@ -41,6 +42,7 @@
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.ObjectInserter;
 import org.eclipse.jgit.lib.PersonIdent;
+import org.eclipse.jgit.lib.Ref;
 import org.eclipse.jgit.lib.RefRename;
 import org.eclipse.jgit.lib.RefUpdate;
 import org.eclipse.jgit.lib.RefUpdate.Result;
@@ -64,19 +66,19 @@
 /**
  * Utility class for maintaining a reflog within a git repository on an
  * orphan branch.
- * 
+ *
  * @author James Moger
  *
  */
 public class RefLogUtils {
-	
+
 	private static final String GB_REFLOG = "refs/gitblit/reflog";
 
 	private static final Logger LOGGER = LoggerFactory.getLogger(RefLogUtils.class);
 
 	/**
 	 * Log an error message and exception.
-	 * 
+	 *
 	 * @param t
 	 * @param repository
 	 *            if repository is not null it MUST be the {0} parameter in the
@@ -98,9 +100,24 @@
 	}
 
 	/**
+	 * Returns true if the repository has a reflog branch.
+	 *
+	 * @param repository
+	 * @return true if the repository has a reflog branch
+	 */
+	public static boolean hasRefLogBranch(Repository repository) {
+		try {
+			return repository.getRef(GB_REFLOG) != null;
+		} catch(Exception e) {
+			LOGGER.error("failed to determine hasRefLogBranch", e);
+		}
+		return false;
+	}
+
+	/**
 	 * Returns a RefModel for the reflog branch in the repository. If the
 	 * branch can not be found, null is returned.
-	 * 
+	 *
 	 * @param repository
 	 * @return a refmodel for the reflog branch or null
 	 */
@@ -135,7 +152,7 @@
 		}
 		return null;
 	}
-	
+
 	private static UserModel newUserModelFrom(PersonIdent ident) {
 		String name = ident.getName();
 		String username;
@@ -148,16 +165,47 @@
 			displayname = name;
 			username = ident.getEmailAddress();
 		}
-		
+
 		UserModel user = new UserModel(username);
 		user.displayName = displayname;
 		user.emailAddress = ident.getEmailAddress();
 		return user;
 	}
-	
+
+	/**
+	 * Logs a ref deletion.
+	 *
+	 * @param user
+	 * @param repository
+	 * @param ref
+	 * @return true, if the update was successful
+	 */
+	public static boolean deleteRef(UserModel user, Repository repository, Ref ref) {
+		try {
+			if (ref == null) {
+				return false;
+			}
+			RefModel reflogBranch = getRefLogBranch(repository);
+			if (reflogBranch == null) {
+				return false;
+			}
+
+			List<RevCommit> log = JGitUtils.getRevLog(repository, reflogBranch.getName(), ref.getName(), 0, 1);
+			if (log.isEmpty()) {
+				// this ref is not in the reflog branch
+				return false;
+			}
+			ReceiveCommand cmd = new ReceiveCommand(ref.getObjectId(), ObjectId.zeroId(), ref.getName());
+			return updateRefLog(user, repository, Arrays.asList(cmd));
+		} catch (Throwable t) {
+			error(t, repository, "Failed to commit reflog entry to {0}");
+		}
+		return false;
+	}
+
 	/**
 	 * Updates the reflog with the received commands.
-	 * 
+	 *
 	 * @param user
 	 * @param repository
 	 * @param commands
@@ -169,10 +217,10 @@
 		if (reflogBranch == null) {
 			JGitUtils.createOrphanBranch(repository, GB_REFLOG, null);
 		}
-		
+
 		boolean success = false;
 		String message = "push";
-		
+
 		try {
 			ObjectId headId = repository.resolve(GB_REFLOG + "^{commit}");
 			ObjectInserter odi = repository.newObjectInserter();
@@ -184,7 +232,7 @@
 				PersonIdent ident;
 				if (UserModel.ANONYMOUS.equals(user)) {
 					// anonymous push
-					ident = new PersonIdent("anonymous", "anonymous");
+					ident = new PersonIdent(user.username + "/" + user.username, user.username);
 				} else {
 					// construct real pushing account
 					ident =	new PersonIdent(MessageFormat.format("{0}/{1}", user.getDisplayName(), user.username),
@@ -238,17 +286,17 @@
 		}
 		return success;
 	}
-	
+
 	/**
 	 * Creates an in-memory index of the push log entry.
-	 * 
+	 *
 	 * @param repo
 	 * @param headId
 	 * @param commands
 	 * @return an in-memory index
 	 * @throws IOException
 	 */
-	private static DirCache createIndex(Repository repo, ObjectId headId, 
+	private static DirCache createIndex(Repository repo, ObjectId headId,
 			Collection<ReceiveCommand> commands) throws IOException {
 
 		DirCache inCoreIndex = DirCache.newInCore();
@@ -287,7 +335,7 @@
 					continue;
 				}
 				String content = change.toString();
-				
+
 				// create an index entry for this attachment
 				final DirCacheEntry dcEntry = new DirCacheEntry(path);
 				dcEntry.setLength(content.length());
@@ -338,7 +386,7 @@
 		}
 		return inCoreIndex;
 	}
-	
+
 	public static List<RefLogEntry> getRefLog(String repositoryName, Repository repository) {
 		return getRefLog(repositoryName, repository, null, 0, -1);
 	}
@@ -354,11 +402,11 @@
 	public static List<RefLogEntry> getRefLog(String repositoryName, Repository repository, Date minimumDate) {
 		return getRefLog(repositoryName, repository, minimumDate, 0, -1);
 	}
-	
+
 	/**
 	 * Returns the list of reflog entries as they were recorded by Gitblit.
 	 * Each RefLogEntry may represent multiple ref updates.
-	 * 
+	 *
 	 * @param repositoryName
 	 * @param repository
 	 * @param minimumDate
@@ -377,7 +425,7 @@
 		if (maxCount == 0) {
 			return list;
 		}
-		
+
 		Map<ObjectId, List<RefModel>> allRefs = JGitUtils.getAllRefs(repository);
 		List<RevCommit> pushes;
 		if (minimumDate == null) {
@@ -393,10 +441,14 @@
 
 			UserModel user = newUserModelFrom(push.getAuthorIdent());
 			Date date = push.getAuthorIdent().getWhen();
-			
+
 			RefLogEntry log = new RefLogEntry(repositoryName, date, user);
-			list.add(log);
 			List<PathChangeModel> changedRefs = JGitUtils.getFilesInCommit(repository, push);
+			if (changedRefs.isEmpty()) {
+				// skip empty commits
+				continue;
+			}
+			list.add(log);
 			for (PathChangeModel change : changedRefs) {
 				switch (change.changeType) {
 				case DELETE:
@@ -410,6 +462,10 @@
 					String oldId = fields[1];
 					String newId = fields[2];
 					log.updateRef(change.path, ReceiveCommand.Type.valueOf(fields[0]), oldId, newId);
+					if (ObjectId.zeroId().getName().equals(newId)) {
+						// ref deletion
+						continue;
+					}
 					List<RevCommit> pushedCommits = JGitUtils.getRevLog(repository, oldId, newId);
 					for (RevCommit pushedCommit : pushedCommits) {
 						RepositoryCommit repoCommit = log.addCommit(change.path, pushedCommit);
@@ -427,7 +483,7 @@
 	/**
 	 * Returns the list of pushes separated by ref (e.g. each ref has it's own
 	 * PushLogEntry object).
-	 *  
+	 *
 	 * @param repositoryName
 	 * @param repository
 	 * @param maxCount
@@ -436,11 +492,11 @@
 	public static List<RefLogEntry> getLogByRef(String repositoryName, Repository repository, int maxCount) {
 		return getLogByRef(repositoryName, repository, 0, maxCount);
 	}
-	
+
 	/**
 	 * Returns the list of pushes separated by ref (e.g. each ref has it's own
 	 * PushLogEntry object).
-	 *  
+	 *
 	 * @param repositoryName
 	 * @param repository
 	 * @param offset
@@ -457,7 +513,7 @@
 				if (!refMap.containsKey(ref)) {
 					refMap.put(ref, new ArrayList<RefLogEntry>());
 				}
-				
+
 				// construct new ref-specific ref change entry
 				RefLogEntry refChange;
 				if (entry instanceof DailyLogEntry) {
@@ -472,23 +528,23 @@
 				refMap.get(ref).add(refChange);
 			}
 		}
-		
+
 		// merge individual ref changes into master list
 		List<RefLogEntry> mergedRefLog = new ArrayList<RefLogEntry>();
 		for (List<RefLogEntry> refPush : refMap.values()) {
 			mergedRefLog.addAll(refPush);
 		}
-		
+
 		// sort ref log
 		Collections.sort(mergedRefLog);
-		
+
 		return mergedRefLog;
 	}
-	
+
 	/**
 	 * Returns the list of ref changes separated by ref (e.g. each ref has it's own
 	 * RefLogEntry object).
-	 *  
+	 *
 	 * @param repositoryName
 	 * @param repository
 	 * @param minimumDate
@@ -511,16 +567,16 @@
 				refMap.get(ref).add(refPush);
 			}
 		}
-		
+
 		// merge individual ref pushes into master list
 		List<RefLogEntry> refPushLog = new ArrayList<RefLogEntry>();
 		for (List<RefLogEntry> refPush : refMap.values()) {
 			refPushLog.addAll(refPush);
 		}
-		
+
 		// sort ref push log
 		Collections.sort(refPushLog);
-		
+
 		return refPushLog;
 	}
 
@@ -548,8 +604,13 @@
         Map<String, DailyLogEntry> dailydigests = new HashMap<String, DailyLogEntry>();
         String linearParent = null;
         for (RefModel local : JGitUtils.getLocalBranches(repository, true, -1)) {
+        	if (!local.getDate().after(minimumDate)) {
+				// branch not recently updated
+        		continue;
+        	}
             String branch = local.getName();
             List<RepositoryCommit> commits = CommitCache.instance().getCommits(repositoryName, repository,  branch, minimumDate);
+            linearParent = null;
             for (RepositoryCommit commit : commits) {
             	if (linearParent != null) {
             		if (!commit.getName().equals(linearParent)) {
@@ -570,18 +631,18 @@
                 	linearParent = commit.getParents()[0].getId().getName();
                 	digest.updateRef(branch, ReceiveCommand.Type.UPDATE, linearParent, commit.getName());
                 }
-                
+
                 RepositoryCommit repoCommit = digest.addCommit(commit);
                 if (repoCommit != null) {
                 	List<RefModel> matchedRefs = allRefs.get(commit.getId());
                     repoCommit.setRefs(matchedRefs);
-                    
+
                     if (!ArrayUtils.isEmpty(matchedRefs)) {
                         for (RefModel ref : matchedRefs) {
                             if (ref.getName().startsWith(Constants.R_TAGS)) {
                                 // treat tags as special events in the log
                                 if (!tags.containsKey(dateStr)) {
-                        			UserModel tagUser = newUserModelFrom(commit.getAuthorIdent());
+                        			UserModel tagUser = newUserModelFrom(ref.getAuthorIdent());
                         			Date tagDate = commit.getAuthorIdent().getWhen();
                         			tags.put(dateStr, new DailyLogEntry(repositoryName, tagDate, tagUser));
                                 }
@@ -592,7 +653,7 @@
                             } else if (ref.getName().startsWith(Constants.R_PULL)) {
                                 // treat pull requests as special events in the log
                                 if (!pulls.containsKey(dateStr)) {
-                        			UserModel commitUser = newUserModelFrom(commit.getAuthorIdent());
+                        			UserModel commitUser = newUserModelFrom(ref.getAuthorIdent());
                         			Date commitDate = commit.getAuthorIdent().getWhen();
                         			pulls.put(dateStr, new DailyLogEntry(repositoryName, commitDate, commitUser));
                                 }

--
Gitblit v1.9.1