internal static void renameTo(Repository db, RefUpdate from, RefUpdate to)
{
var logdir = new DirectoryInfo(Path.Combine(db.Directory.FullName, Constants.LOGS).Replace('/', Path.DirectorySeparatorChar));
var reflogFrom = new FileInfo(Path.Combine(logdir.FullName, from.Name).Replace('/', Path.DirectorySeparatorChar));
DirectoryInfo refLogFromDir = reflogFrom.Directory;
if (!reflogFrom.Exists)
{
return;
}
var reflogTo = new FileInfo(Path.Combine(logdir.FullName, to.Name).Replace('/', Path.DirectorySeparatorChar));
var reflogToDir = reflogTo.Directory;
var tmp = new FileInfo(Path.Combine(logdir.FullName, "tmp-renamed-log.." + Thread.CurrentThread.ManagedThreadId));
if (!reflogFrom.RenameTo(tmp.FullName))
{
throw new IOException("Cannot rename " + reflogFrom + " to (" + tmp + ")" + reflogTo);
}
RefUpdate.DeleteEmptyDir(refLogFromDir, RefUpdate.Count(from.Name, '/') - 1);
if (reflogToDir != null && !reflogToDir.Exists)
{
try { reflogToDir.Create(); }
catch (IOException)
{
throw new IOException("Cannot create directory " + reflogToDir);
}
}
if (!tmp.RenameTo(reflogTo.FullName))
{
throw new IOException("Cannot rename (" + tmp + ")" + reflogFrom + " to " + reflogTo);
}
}
public override RefRename newRename(string fromName, string toName)
{
RefUpdate from = newUpdate(fromName, false);
RefUpdate to = newUpdate(toName, false);
return(new RefDirectoryRename((RefDirectoryUpdate)from, (RefDirectoryUpdate)to));
}
private bool renameLog(RefUpdate src, RefUpdate dst)
{
FileInfo srcLog = _refdb.logFor(src.getName());
FileInfo dstLog = _refdb.logFor(dst.getName());
if (!srcLog.Exists)
{
return(true);
}
if (!rename(srcLog.FullName, dstLog.FullName))
{
return(false);
}
// There be dragons
try
{
int levels = RefDirectory.levelsIn(src.getName()) - 2;
RefDirectory.delete(srcLog, levels);
return(true);
}
catch (IOException)
{
rename(dstLog.FullName, srcLog.FullName);
return(false);
}
}
/**
* Store a tag.
* If author, message or type is set make the tag an annotated tag.
*
* @
*/
public void Save() //renamed from Tag
{
if (TagId != null)
{
throw new InvalidOperationException("exists " + TagId);
}
ObjectId id;
if (author != null || message != null || tagType != null)
{
ObjectId tagid = new ObjectWriter(Repository).WriteTag(this);
TagId = tagid;
id = tagid;
}
else
{
id = Id;
}
RefUpdate ru = Repository.UpdateRef(Constants.RefsTags + TagName);
ru.NewObjectId = id;
ru.SetRefLogMessage("tagged " + TagName, false);
if (ru.ForceUpdate() == RefUpdate.RefUpdateResult.LockFailure)
{
throw new ObjectWritingException("Unable to lock tag " + TagName);
}
}
/// <summary>
/// An set of update operations for renaming a ref
/// </summary>
/// <param name="fromRef"> Old ref name </param>
/// <param name="toRef"> New ref name </param>
/// <returns> a RefUpdate operation to rename a ref </returns>
/// <exception cref="IOException"> </exception>
public RefRename NewRename(string fromRef, string toRef)
{
RefreshPackedRefs();
Ref f = ReadRefBasic(fromRef, 0);
var t = new Ref(Ref.Storage.New, toRef, null);
var refUpdateFrom = new RefUpdate(this, f, FileForRef(f.Name));
var refUpdateTo = new RefUpdate(this, t, FileForRef(t.Name));
return(new RefRename(refUpdateTo, refUpdateFrom));
}
/// <summary>
/// Initialize a new rename operation.
/// </summary>
/// <param name="src">operation to read and delete the source.</param>
/// <param name="dst">operation to create (or overwrite) the destination.</param>
protected RefRename(RefUpdate src, RefUpdate dst) {
source = src;
destination = dst;
Repository repo = destination.getRepository();
string cmd = "";
if (source.getName().StartsWith(Constants.R_HEADS)
&& destination.getName().StartsWith(Constants.R_HEADS))
cmd = "Branch: ";
setRefLogMessage(cmd + "renamed "
+ repo.ShortenRefName(source.getName()) + " to "
+ repo.ShortenRefName(destination.getName()));
}
internal static void append(RefUpdate u, string msg)
{
ObjectId oldId = u.OldObjectId;
ObjectId newId = u.NewObjectId;
Repository db = u.Repository;
PersonIdent ident = u.RefLogIdent;
AppendOneRecord(oldId, newId, ident, msg, db, u.Name);
if (!u.Name.Equals(u.OriginalName))
{
AppendOneRecord(oldId, newId, ident, msg, db, u.OriginalName);
}
}
internal static void append(RefUpdate u, string msg)
{
ObjectId oldId = u.OldObjectId;
ObjectId newId = u.NewObjectId;
Repository db = u.Repository;
PersonIdent ident = u.RefLogIdent;
AppendOneRecord(oldId, newId, ident, msg, db, u.Name);
if (!u.Name.Equals(u.OriginalName))
{
AppendOneRecord(oldId, newId, ident, msg, db, u.OriginalName);
}
}
/// <summary>
/// Initialize a new rename operation.
/// </summary>
/// <param name="src">operation to read and delete the source.</param>
/// <param name="dst">operation to create (or overwrite) the destination.</param>
protected RefRename(RefUpdate src, RefUpdate dst)
{
source = src;
destination = dst;
Repository repo = destination.getRepository();
string cmd = "";
if (source.getName().StartsWith(Constants.R_HEADS) &&
destination.getName().StartsWith(Constants.R_HEADS))
{
cmd = "Branch: ";
}
setRefLogMessage(cmd + "renamed "
+ repo.ShortenRefName(source.getName()) + " to "
+ repo.ShortenRefName(destination.getName()));
}
public void log(RefUpdate update, string msg, bool deref)
{
ObjectId oldId = update.getOldObjectId();
ObjectId newId = update.getNewObjectId();
Ref @ref = update.getRef();
PersonIdent ident = update.getRefLogIdent();
if (ident == null)
{
ident = new PersonIdent(parent);
}
else
{
ident = new PersonIdent(ident);
}
var r = new StringBuilder();
r.Append(ObjectId.ToString(oldId));
r.Append(' ');
r.Append(ObjectId.ToString(newId));
r.Append(' ');
r.Append(ident.ToExternalString());
r.Append('\t');
r.Append(msg);
r.Append('\n');
byte[] rec = Constants.encode(r.ToString());
if (deref && @ref.isSymbolic())
{
log(@ref.getName(), rec);
log(@ref.getLeaf().getName(), rec);
}
else
{
log(@ref.getName(), rec);
}
}
private static char shortTypeOf(RefUpdate.RefUpdateResult r)
{
switch (r)
{
case RefUpdate.RefUpdateResult.LockFailure:
case RefUpdate.RefUpdateResult.IOFailure:
case RefUpdate.RefUpdateResult.Rejected:
return '!';
case RefUpdate.RefUpdateResult.New:
return '*';
case RefUpdate.RefUpdateResult.Forced:
return '+';
case RefUpdate.RefUpdateResult.NoChange:
return '=';
default:
return ' ';
}
}
private static char shortTypeOf(RefUpdate.RefUpdateResult r)
{
switch (r)
{
case RefUpdate.RefUpdateResult.LOCK_FAILURE:
case RefUpdate.RefUpdateResult.IO_FAILURE:
case RefUpdate.RefUpdateResult.REJECTED:
return '!';
case RefUpdate.RefUpdateResult.NEW:
return '*';
case RefUpdate.RefUpdateResult.FORCED:
return '+';
case RefUpdate.RefUpdateResult.NO_CHANGE:
return '=';
default:
return ' ';
}
}
private bool linkHEAD(RefUpdate target)
{
try
{
RefUpdate u = _refdb.newUpdate(Constants.HEAD, false);
u.disableRefLog();
switch (u.link(target.getName()))
{
case RefUpdate.RefUpdateResult.NEW:
case RefUpdate.RefUpdateResult.FORCED:
case RefUpdate.RefUpdateResult.NO_CHANGE:
return(true);
default:
return(false);
}
}
catch (IOException)
{
return(false);
}
}
protected StoreBase(RefUpdate refUpdate)
{
_refUpdate = refUpdate;
}
public static ObjectId getOldObjectId(this RefUpdate refUpdate)
{
return(refUpdate.OldObjectId);
}
public UpdateStore(RefUpdate refUpdate)
{
_refUpdate = refUpdate;
}
private bool renameLog(RefUpdate src, RefUpdate dst)
{
FileInfo srcLog = _refdb.logFor(src.getName());
FileInfo dstLog = _refdb.logFor(dst.getName());
if (!srcLog.Exists)
return true;
if (!rename(srcLog.FullName, dstLog.FullName))
return false;
// There be dragons
try
{
int levels = RefDirectory.levelsIn(src.getName()) - 2;
RefDirectory.delete(srcLog, levels);
return true;
}
catch (IOException)
{
rename(dstLog.FullName, srcLog.FullName);
return false;
}
}
private void delete(RefUpdate @ref, RefUpdate.RefUpdateResult expected,
bool exists, bool removed)
{
Assert.AreEqual(exists, db.getAllRefs().ContainsKey(@ref.Name));
Assert.AreEqual(expected, @ref.Delete());
Assert.AreEqual(!removed, db.getAllRefs().ContainsKey(@ref.Name));
}
public static void setNewObjectId(this RefUpdate refUpdate, AnyObjectId id)
{
refUpdate.NewObjectId = id.Copy();
}
public static void setForceUpdate(this RefUpdate refUpdate, bool b)
{
refUpdate.IsForceUpdate = b;
}
public DeleteStore(RefUpdate refUpdate)
{
_refUpdate = refUpdate;
}
public static string getName(this RefUpdate refUpdate)
{
return(refUpdate.Name);
}
public static Ref getRef(this RefUpdate refUpdate)
{
return(refUpdate.Ref);
}
public static RefUpdate.RefUpdateResult getResult(this RefUpdate refUpdate)
{
return(refUpdate.Result);
}
public static void setOldObjectId(this RefUpdate refUpdate, AnyObjectId id)
{
refUpdate.OldObjectId = id != null?id.ToObjectId() : null;;
}
public override RefUpdateResult Store(LockFile lockFile, RefUpdateResult status)
{
return(RefUpdate.UpdateRepositoryStore(lockFile, status));
}
public RefRename(RefUpdate toUpdate, RefUpdate fromUpdate)
{
_renameResult = RefResult.NotAttempted;
_newToUpdate = toUpdate;
_oldFromDelete = fromUpdate;
}
public DeleteStore(RefUpdate refUpdate) : base(refUpdate)
{
}
/// <summary>
/// The result of the new ref update
/// </summary>
/// <returns></returns>
/// <exception cref="IOException"></exception>
public RefResult Rename()
{
Ref oldRef = _oldFromDelete.Repository.getRef(Constants.HEAD);
bool renameHeadToo = oldRef != null && oldRef.Name == _oldFromDelete.Name;
Repository db = _oldFromDelete.Repository;
RefLogWriter.renameTo(db, _oldFromDelete, _newToUpdate);
_newToUpdate.SetRefLogMessage(null, false);
string tmpRefName = "RENAMED-REF.." + Thread.CurrentThread.ManagedThreadId;
RefUpdate tmpUpdateRef = db.UpdateRef(tmpRefName);
if (renameHeadToo)
{
try
{
_oldFromDelete.Repository.Link(Constants.HEAD, tmpRefName);
}
catch (IOException)
{
RefLogWriter.renameTo(db, _newToUpdate, _oldFromDelete);
return(_renameResult = RefResult.LockFailure);
}
}
tmpUpdateRef.NewObjectId = _oldFromDelete.OldObjectId;
tmpUpdateRef.IsForceUpdate = true;
RefResult update = tmpUpdateRef.Update();
if (update != RefResult.Forced && update != RefResult.New && update != RefResult.NoChange)
{
RefLogWriter.renameTo(db, _newToUpdate, _oldFromDelete);
if (renameHeadToo)
{
_oldFromDelete.Repository.Link(Constants.HEAD, _oldFromDelete.Name);
}
return(_renameResult = update);
}
_oldFromDelete.ExpectedOldObjectId = _oldFromDelete.OldObjectId;
_oldFromDelete.IsForceUpdate = true;
RefResult delete = _oldFromDelete.Delete();
if (delete != RefResult.Forced)
{
if (db.getRef(_oldFromDelete.Name) != null)
{
RefLogWriter.renameTo(db, _newToUpdate, _oldFromDelete);
if (renameHeadToo)
{
_oldFromDelete.Repository.Link(Constants.HEAD, _oldFromDelete.Name);
}
}
return(_renameResult = delete);
}
_newToUpdate.NewObjectId = tmpUpdateRef.NewObjectId;
RefResult updateResult = _newToUpdate.Update();
if (updateResult != RefResult.New)
{
RefLogWriter.renameTo(db, _newToUpdate, _oldFromDelete);
if (renameHeadToo)
{
_oldFromDelete.Repository.Link(Constants.HEAD, _oldFromDelete.Name);
}
_oldFromDelete.ExpectedOldObjectId = null;
_oldFromDelete.NewObjectId = _oldFromDelete.OldObjectId;
_oldFromDelete.IsForceUpdate = true;
_oldFromDelete.SetRefLogMessage(null, false);
RefResult undelete = _oldFromDelete.Update();
if (undelete != RefResult.New && undelete != RefResult.LockFailure)
{
return(_renameResult = RefResult.IOFailure);
}
return(_renameResult = RefResult.LockFailure);
}
if (renameHeadToo)
{
_oldFromDelete.Repository.Link(Constants.HEAD, _newToUpdate.Name);
}
else
{
db.fireRefsMaybeChanged();
}
RefLogWriter.append(this, _newToUpdate.Name, "Branch: renamed "
+ Repository.ShortenRefName(_oldFromDelete.Name) + " to "
+ Repository.ShortenRefName(_newToUpdate.Name));
if (renameHeadToo)
{
RefLogWriter.append(this, Constants.HEAD, "Branch: renamed "
+ Repository.ShortenRefName(_oldFromDelete.Name) + " to "
+ Repository.ShortenRefName(_newToUpdate.Name));
}
return(_renameResult = RefResult.Renamed);
}
private void delete(RefUpdate @ref, RefUpdate.RefUpdateResult expected)
{
delete(@ref, expected, true, true);
}
protected StoreBase(RefUpdate refUpdate)
{
_refUpdate = refUpdate;
}
private bool linkHEAD(RefUpdate target)
{
try
{
RefUpdate u = _refdb.newUpdate(Constants.HEAD, false);
u.disableRefLog();
switch (u.link(target.getName()))
{
case RefUpdate.RefUpdateResult.NEW:
case RefUpdate.RefUpdateResult.FORCED:
case RefUpdate.RefUpdateResult.NO_CHANGE:
return true;
default:
return false;
}
}
catch (IOException e)
{
return false;
}
}
public UpdateStore(RefUpdate refUpdate)
: base(refUpdate)
{
}
public static ObjectId getNewObjectId(this RefUpdate refUpdate)
{
return(refUpdate.NewObjectId);
}
public static bool isForceUpdate(this RefUpdate refUpdate)
{
return(refUpdate.IsForceUpdate);
}
protected override RefUpdate.RefUpdateResult doRename()
{
if (source.getRef().isSymbolic())
{
return(RefUpdate.RefUpdateResult.IO_FAILURE); // not supported
}
var rw = new RevWalk.RevWalk(_refdb.getRepository());
_objId = source.getOldObjectId();
_updateHead = needToUpdateHEAD();
_tmp = _refdb.newTemporaryUpdate();
try
{
// First backup the source so its never unreachable.
_tmp.setNewObjectId(_objId);
_tmp.setForceUpdate(true);
_tmp.disableRefLog();
switch (_tmp.update(rw))
{
case RefUpdate.RefUpdateResult.NEW:
case RefUpdate.RefUpdateResult.FORCED:
case RefUpdate.RefUpdateResult.NO_CHANGE:
break;
default:
return(_tmp.getResult());
}
// Save the source's log under the temporary name, we must do
// this before we delete the source, otherwise we lose the log.
if (!renameLog(source, _tmp))
{
return(RefUpdate.RefUpdateResult.IO_FAILURE);
}
// If HEAD has to be updated, link it now to destination.
// We have to link before we delete, otherwise the delete
// fails because its the current branch.
RefUpdate dst = destination;
if (_updateHead)
{
if (!linkHEAD(destination))
{
renameLog(_tmp, source);
return(RefUpdate.RefUpdateResult.LOCK_FAILURE);
}
// Replace the update operation so HEAD will log the rename.
dst = _refdb.newUpdate(Constants.HEAD, false);
dst.setRefLogIdent(destination.getRefLogIdent());
dst.setRefLogMessage(destination.getRefLogMessage(), false);
}
// Delete the source name so its path is free for replacement.
source.setExpectedOldObjectId(_objId);
source.setForceUpdate(true);
source.disableRefLog();
if (source.delete(rw) != RefUpdate.RefUpdateResult.FORCED)
{
renameLog(_tmp, source);
if (_updateHead)
{
linkHEAD(source);
}
return(source.getResult());
}
// Move the log to the destination.
if (!renameLog(_tmp, destination))
{
renameLog(_tmp, source);
source.setExpectedOldObjectId(ObjectId.ZeroId);
source.setNewObjectId(_objId);
source.update(rw);
if (_updateHead)
{
linkHEAD(source);
}
return(RefUpdate.RefUpdateResult.IO_FAILURE);
}
// Create the destination, logging the rename during the creation.
dst.setExpectedOldObjectId(ObjectId.ZeroId);
dst.setNewObjectId(_objId);
if (dst.update(rw) != RefUpdate.RefUpdateResult.NEW)
{
// If we didn't create the destination we have to undo
// our work. Put the log back and restore source.
if (renameLog(destination, _tmp))
{
renameLog(_tmp, source);
}
source.setExpectedOldObjectId(ObjectId.ZeroId);
source.setNewObjectId(_objId);
source.update(rw);
if (_updateHead)
{
linkHEAD(source);
}
return(dst.getResult());
}
return(RefUpdate.RefUpdateResult.RENAMED);
}
finally
{
// Always try to free the temporary name.
try
{
_refdb.delete(_tmp);
}
catch (IOException)
{
_refdb.fileFor(_tmp.getName()).Delete();
}
}
}
internal static void renameTo(Repository db, RefUpdate from, RefUpdate to)
{
var logdir = new DirectoryInfo(Path.Combine(db.Directory.FullName, Constants.LOGS).Replace('/', Path.DirectorySeparatorChar));
var reflogFrom = new FileInfo(Path.Combine(logdir.FullName, from.Name).Replace('/', Path.DirectorySeparatorChar));
DirectoryInfo refLogFromDir = reflogFrom.Directory;
if (!reflogFrom.Exists) return;
var reflogTo = new FileInfo(Path.Combine(logdir.FullName, to.Name).Replace('/', Path.DirectorySeparatorChar));
var reflogToDir = reflogTo.Directory;
var tmp = new FileInfo(Path.Combine(logdir.FullName, "tmp-renamed-log.." + Thread.CurrentThread.ManagedThreadId));
if (!reflogFrom.RenameTo(tmp.FullName))
{
throw new IOException("Cannot rename " + reflogFrom + " to (" + tmp + ")" + reflogTo);
}
RefUpdate.DeleteEmptyDir(refLogFromDir, RefUpdate.Count(from.Name, '/') - 1);
if (reflogToDir != null && !reflogToDir.Exists)
{
try { reflogToDir.Create(); }
catch(IOException)
{
throw new IOException("Cannot create directory " + reflogToDir);
}
}
if (!tmp.RenameTo(reflogTo.FullName))
{
throw new IOException("Cannot rename (" + tmp + ")" + reflogFrom + " to " + reflogTo);
}
}
/// <summary>
/// An set of update operations for renaming a ref
/// </summary>
/// <param name="fromRef"> Old ref name </param>
/// <param name="toRef"> New ref name </param>
/// <returns> a RefUpdate operation to rename a ref </returns>
/// <exception cref="IOException"> </exception>
public RefRename NewRename(string fromRef, string toRef)
{
RefreshPackedRefs();
Ref f = ReadRefBasic(fromRef, 0);
var t = new Ref(Ref.Storage.New, toRef, null);
var refUpdateFrom = new RefUpdate(this, f, FileForRef(f.Name));
var refUpdateTo = new RefUpdate(this, t, FileForRef(t.Name));
return new RefRename(refUpdateTo, refUpdateFrom);
}
public static ObjectId getExpectedOldObjectId(this RefUpdate refUpdate)
{
return(refUpdate.ExpectedOldObjectId);
}
