protected void showFetchResult(Transport.Transport tn, FetchResult r)
{
bool shownURI = false;
foreach (TrackingRefUpdate u in r.TrackingRefUpdates)
{
if (!verbose && u.Result == RefUpdate.RefUpdateResult.NoChange)
continue;
char type = shortTypeOf(u.Result);
string longType = longTypeOf(u);
string src = AbbreviateRef(u.RemoteName, false);
string dst = AbbreviateRef(u.LocalName, true);
if (!shownURI)
{
streamOut.Write("From ");
streamOut.WriteLine(tn.Uri);
shownURI = true;
}
streamOut.WriteLine(" " + type + " " + longType + " " + src + " -> " + dst);
}
}
internal virtual void execute(ProgressMonitor monitor, FetchResult result)
{
_askFor.Clear();
_localUpdates.Clear();
_fetchHeadUpdates.Clear();
_packLocks.Clear();
try
{
executeImp(monitor, result);
}
finally
{
foreach (PackLock @lock in _packLocks)
{
if (@lock != null)
@lock.Unlock();
}
}
}
private void updateFETCH_HEAD(FetchResult result)
{
LockFile @lock = new LockFile(new FileInfo(Path.Combine(_transport.Local.Directory.FullName, "FETCH_HEAD")));
try
{
if (@lock.Lock())
{
StreamWriter w = new StreamWriter(@lock.GetOutputStream());
try
{
foreach (FetchHeadRecord h in _fetchHeadUpdates)
{
h.Write(w);
result.Add(h);
}
}
finally
{
w.Close();
}
@lock.Commit();
}
}
finally
{
@lock.Unlock();
}
}
private void executeImp(ProgressMonitor monitor, FetchResult result)
{
_connection = _transport.openFetch();
try
{
result.SetAdvertisedRefs(_transport.Uri, _connection.RefsMap);
HashSet<Ref> matched = new HashSet<Ref>();
foreach (RefSpec spec in _toFetch)
{
if (spec.Source == null)
throw new TransportException("Source ref not specified for refspec: " + spec);
if (spec.Wildcard)
{
expandWildcard(spec, matched);
}
else
{
expandSingle(spec, matched);
}
}
ICollection<Ref> additionalTags = new Collection<Ref>();
TagOpt tagopt = _transport.TagOpt;
if (tagopt == TagOpt.AUTO_FOLLOW)
{
additionalTags = expandAutoFollowTags();
}
else if (tagopt == TagOpt.FETCH_TAGS)
{
expandFetchTags();
}
bool includedTags;
if (_askFor.Count != 0 && !askForIsComplete())
{
fetchObjects(monitor);
includedTags = _connection.DidFetchIncludeTags;
// Connection was used for object transfer. If we
// do another fetch we must open a new connection.
//
closeConnection();
}
else
{
includedTags = false;
}
if (tagopt == TagOpt.AUTO_FOLLOW && additionalTags.Count != 0)
{
// There are more tags that we want to follow, but
// not all were asked for on the initial request.
foreach(ObjectId key in _askFor.Keys)
{
_have.Add(key);
}
_askFor.Clear();
foreach (Ref r in additionalTags)
{
ObjectId id = r.PeeledObjectId;
if (id == null || _transport.Local.HasObject(id))
{
wantTag(r);
}
}
if (_askFor.Count != 0 && (!includedTags || !askForIsComplete()))
{
reopenConnection();
if (_askFor.Count != 0)
{
fetchObjects(monitor);
}
}
}
}
finally
{
closeConnection();
}
RevWalk.RevWalk walk = new RevWalk.RevWalk(_transport.Local);
if (_transport.RemoveDeletedRefs)
{
deleteStaleTrackingRefs(result, walk);
}
foreach (TrackingRefUpdate u in _localUpdates)
{
try
{
u.Update(walk);
result.Add(u);
}
catch (IOException err)
{
throw new TransportException("Failure updating tracking ref " + u.LocalName + ": " + err.Message, err);
}
}
if (_fetchHeadUpdates.Count != 0)
{
try
{
updateFETCH_HEAD(result);
}
catch (IOException err)
{
throw new TransportException("Failure updating FETCH_HEAD: " + err.Message, err);
}
}
}
private void deleteTrackingRef(FetchResult result, Repository db, RevWalk.RevWalk walk, RefSpec spec, Ref localRef)
{
string name = localRef.Name;
try
{
TrackingRefUpdate u = new TrackingRefUpdate(db, name, spec.Source, true, ObjectId.ZeroId, "deleted");
result.Add(u);
if (_transport.DryRun)
{
return;
}
u.Delete(walk);
switch (u.Result)
{
case RefUpdate.RefUpdateResult.New:
case RefUpdate.RefUpdateResult.NoChange:
case RefUpdate.RefUpdateResult.FastForward:
case RefUpdate.RefUpdateResult.Forced:
break;
default:
throw new TransportException(_transport.Uri, "Cannot delete stale tracking ref " + name + ": " + u.Result.ToString());
}
}
catch (System.IO.IOException e)
{
throw new TransportException(_transport.Uri, "Cannot delete stale tracking ref " + name, e);
}
}
private void deleteStaleTrackingRefs(FetchResult result, RevWalk.RevWalk walk)
{
Repository db = _transport.Local;
foreach (Ref @ref in db.getAllRefs().Values)
{
string refname = @ref.Name;
foreach (RefSpec spec in _toFetch)
{
if (spec.MatchDestination(refname))
{
RefSpec s = spec.ExpandFromDestination(refname);
if (result.GetAdvertisedRef(s.Source) == null)
{
deleteTrackingRef(result, db, walk, s, @ref);
}
}
}
}
}
private static Ref guessHEAD(FetchResult result)
{
Ref idHEAD = result.GetAdvertisedRef(Constants.HEAD);
List<Ref> availableRefs = new List<Ref>();
Ref head = null;
foreach (Ref r in result.AdvertisedRefs.Values)
{
string n = r.Name;
if (!n.StartsWith(Constants.R_HEADS))
continue;
availableRefs.Add(r);
if (idHEAD == null || head != null)
continue;
if (r.ObjectId.Equals(idHEAD.ObjectId))
head = r;
}
availableRefs.Sort(RefComparator.INSTANCE);
if (idHEAD != null && head == null)
head = idHEAD;
return head;
}
