/**
* Create the <code>pack-*.keep</code> file, with the given message.
*
* @param msg
* message to store in the file.
* @return true if the keep file was successfully written; false otherwise.
* @throws IOException
* the keep file could not be written.
*/
public bool Lock(string msg)
{
if (msg == null) return false;
if (!msg.EndsWith("\n")) msg += "\n";
LockFile lf = new LockFile(keepFile);
if (!lf.Lock()) return false;
lf.Write(Constants.encode(msg));
return lf.Commit();
}
private static void LockAndWriteFile(FileInfo file, byte[] content)
{
string name = file.Name;
var lck = new LockFile(file);
if (!lck.Lock())
{
throw new ObjectWritingException("Unable to lock " + name);
}
try
{
lck.Write(content);
}
catch (IOException ioe)
{
throw new ObjectWritingException("Unable to write " + name, ioe);
}
if (!lck.Commit())
{
throw new ObjectWritingException("Unable to write " + name);
}
}
private RefUpdateResult updateImpl(RevWalk.RevWalk walk, StoreBase store)
{
LockFile @lock;
RevObject newObj;
RevObject oldObj;
@lock = new LockFile(looseFile);
if ([email protected]())
return RefUpdateResult.LockFailure;
try
{
OldObjectId = db.IdOf(Name);
if (expValue != null)
{
ObjectId o;
o = OldObjectId != null ? OldObjectId : ObjectId.ZeroId;
if (!expValue.Equals(o))
return RefUpdateResult.LockFailure;
}
if (OldObjectId == null)
return store.Store(@lock, RefUpdateResult.New);
newObj = safeParse(walk, newValue);
oldObj = safeParse(walk, OldObjectId);
if (newObj == oldObj)
return store.Store(@lock, RefUpdateResult.NoChange);
if (newObj is RevCommit && oldObj is RevCommit)
{
if (walk.isMergedInto((RevCommit)oldObj, (RevCommit)newObj))
return store.Store(@lock, RefUpdateResult.FastForward);
}
if (IsForceUpdate)
return store.Store(@lock, RefUpdateResult.Forced);
return RefUpdateResult.Rejected;
}
finally
{
@lock.Unlock();
}
}
public void save()
{
byte[] o = Constants.encode(toText());
LockFile lf = new LockFile(getFile());
if (!lf.Lock())
throw new IOException("Cannot lock " + getFile());
try
{
lf.Write(o);
if (!lf.Commit())
throw new IOException("Cannot commit write to " + getFile());
}
finally
{
lf.Unlock();
}
}
private RefUpdateResult UpdateImpl(RevWalk.RevWalk walk, StoreBase store)
{
int lastSlash = Name.LastIndexOf('/');
if (lastSlash > 0)
{
if (Repository.getAllRefs().ContainsKey(Name.Slice(0, lastSlash)))
{
return RefUpdateResult.LockFailure;
}
}
string rName = Name + "/";
foreach (Ref r in Repository.getAllRefs().Values)
{
if (r.Name.StartsWith(rName))
{
return RefUpdateResult.LockFailure;
}
}
var @lock = new LockFile(_looseFile);
if ([email protected]())
{
return RefUpdateResult.LockFailure;
}
try
{
OldObjectId = _db.IdOf(Name);
if (_expValue != null)
{
ObjectId o = OldObjectId ?? ObjectId.ZeroId;
if (!_expValue.Equals(o))
{
return RefUpdateResult.LockFailure;
}
}
if (OldObjectId == null)
{
return store.Store(@lock, RefUpdateResult.New);
}
RevObject newObj = SafeParse(walk, _newValue);
RevObject oldObj = SafeParse(walk, OldObjectId);
if (newObj == oldObj)
{
return store.Store(@lock, RefUpdateResult.NoChange);
}
if (newObj is RevCommit && oldObj is RevCommit)
{
if (walk.isMergedInto((RevCommit)oldObj, (RevCommit)newObj))
{
return store.Store(@lock, RefUpdateResult.FastForward);
}
}
if (IsForceUpdate)
{
return store.Store(@lock, RefUpdateResult.Forced);
}
return RefUpdateResult.Rejected;
}
finally
{
@lock.Unlock();
}
}
private RefUpdateResult UpdateImpl(RevWalk.RevWalk walk, StoreBase store)
{
if (IsNameConflicting())
{
return RefUpdateResult.LockFailure;
}
var @lock = new LockFile(_looseFile);
if ([email protected]())
{
return RefUpdateResult.LockFailure;
}
try
{
OldObjectId = _db.IdOf(Name);
if (_expValue != null)
{
ObjectId o = OldObjectId ?? ObjectId.ZeroId;
if (!AnyObjectId.equals(_expValue, o))
{
return RefUpdateResult.LockFailure;
}
}
if (OldObjectId == null)
{
return store.Store(@lock, RefUpdateResult.New);
}
RevObject newObj = SafeParse(walk, _newValue);
RevObject oldObj = SafeParse(walk, OldObjectId);
if (newObj == oldObj)
{
return store.Store(@lock, RefUpdateResult.NoChange);
}
if (newObj is RevCommit && oldObj is RevCommit)
{
if (walk.isMergedInto((RevCommit)oldObj, (RevCommit)newObj))
{
return store.Store(@lock, RefUpdateResult.FastForward);
}
}
if (IsForceUpdate)
{
return store.Store(@lock, RefUpdateResult.Forced);
}
return RefUpdateResult.Rejected;
}
finally
{
@lock.Unlock();
}
}