/// <exception cref="NGit.Errors.TransportException"></exception>
private void Sendpack(IList <RemoteRefUpdate> updates, ProgressMonitor monitor)
{
string pathPack = null;
string pathIdx = null;
PackWriter writer = new PackWriter(transport.GetPackConfig(), local.NewObjectReader
());
try
{
ICollection <ObjectId> need = new HashSet <ObjectId>();
ICollection <ObjectId> have = new HashSet <ObjectId>();
foreach (RemoteRefUpdate r in updates)
{
need.AddItem(r.GetNewObjectId());
}
foreach (Ref r_1 in GetRefs())
{
have.AddItem(r_1.GetObjectId());
if (r_1.GetPeeledObjectId() != null)
{
have.AddItem(r_1.GetPeeledObjectId());
}
}
writer.PreparePack(monitor, need, have);
// We don't have to continue further if the pack will
// be an empty pack, as the remote has all objects it
// needs to complete this change.
//
if (writer.GetObjectCount() == 0)
{
return;
}
packNames = new LinkedHashMap <string, string>();
foreach (string n in dest.GetPackNames())
{
packNames.Put(n, n);
}
string @base = "pack-" + writer.ComputeName().Name;
string packName = @base + ".pack";
pathPack = "pack/" + packName;
pathIdx = "pack/" + @base + ".idx";
if (Sharpen.Collections.Remove(packNames, packName) != null)
{
// The remote already contains this pack. We should
// remove the index before overwriting to prevent bad
// offsets from appearing to clients.
//
dest.WriteInfoPacks(packNames.Keys);
dest.DeleteFile(pathIdx);
}
// Write the pack file, then the index, as readers look the
// other direction (index, then pack file).
//
string wt = "Put " + Sharpen.Runtime.Substring(@base, 0, 12);
OutputStream os = dest.WriteFile(pathPack, monitor, wt + "..pack");
try
{
os = new SafeBufferedOutputStream(os);
writer.WritePack(monitor, monitor, os);
}
finally
{
os.Close();
}
os = dest.WriteFile(pathIdx, monitor, wt + "..idx");
try
{
os = new SafeBufferedOutputStream(os);
writer.WriteIndex(os);
}
finally
{
os.Close();
}
// Record the pack at the start of the pack info list. This
// way clients are likely to consult the newest pack first,
// and discover the most recent objects there.
//
AList <string> infoPacks = new AList <string>();
infoPacks.AddItem(packName);
Sharpen.Collections.AddAll(infoPacks, packNames.Keys);
dest.WriteInfoPacks(infoPacks);
}
catch (IOException err)
{
SafeDelete(pathIdx);
SafeDelete(pathPack);
throw new TransportException(uri, JGitText.Get().cannotStoreObjects, err);
}
finally
{
writer.Release();
}
}
/// <exception cref="NGit.Errors.TransportException"></exception>
private void DownloadObject(ProgressMonitor pm, AnyObjectId id)
{
if (AlreadyHave(id))
{
return;
}
for (; ;)
{
// Try a pack file we know about, but don't have yet. Odds are
// that if it has this object, it has others related to it so
// getting the pack is a good bet.
//
if (DownloadPackedObject(pm, id))
{
return;
}
// Search for a loose object over all alternates, starting
// from the one we last successfully located an object through.
//
string idStr = id.Name;
string subdir = Sharpen.Runtime.Substring(idStr, 0, 2);
string file = Sharpen.Runtime.Substring(idStr, 2);
string looseName = subdir + "/" + file;
for (int i = lastRemoteIdx; i < remotes.Count; i++)
{
if (DownloadLooseObject(id, looseName, remotes[i]))
{
lastRemoteIdx = i;
return;
}
}
for (int i_1 = 0; i_1 < lastRemoteIdx; i_1++)
{
if (DownloadLooseObject(id, looseName, remotes[i_1]))
{
lastRemoteIdx = i_1;
return;
}
}
// Try to obtain more pack information and search those.
//
while (!noPacksYet.IsEmpty())
{
WalkRemoteObjectDatabase wrr = noPacksYet.RemoveFirst();
ICollection <string> packNameList;
try
{
pm.BeginTask("Listing packs", ProgressMonitor.UNKNOWN);
packNameList = wrr.GetPackNames();
}
catch (IOException e)
{
// Try another repository.
//
RecordError(id, e);
continue;
}
finally
{
pm.EndTask();
}
if (packNameList == null || packNameList.IsEmpty())
{
continue;
}
foreach (string packName in packNameList)
{
if (packsConsidered.AddItem(packName))
{
unfetchedPacks.AddItem(new WalkFetchConnection.RemotePack(this, wrr, packName));
}
}
if (DownloadPackedObject(pm, id))
{
return;
}
}
// Try to expand the first alternate we haven't expanded yet.
//
ICollection <WalkRemoteObjectDatabase> al = ExpandOneAlternate(id, pm);
if (al != null && !al.IsEmpty())
{
foreach (WalkRemoteObjectDatabase alt in al)
{
remotes.AddItem(alt);
noPacksYet.AddItem(alt);
noAlternatesYet.AddItem(alt);
}
continue;
}
// We could not obtain the object. There may be reasons why.
//
IList <Exception> failures = fetchErrors.Get((ObjectId)id);
TransportException te;
te = new TransportException(MessageFormat.Format(JGitText.Get().cannotGet, id.Name
));
if (failures != null && !failures.IsEmpty())
{
if (failures.Count == 1)
{
Sharpen.Extensions.InitCause(te, failures[0]);
}
else
{
Sharpen.Extensions.InitCause(te, new CompoundException(failures));
}
}
throw te;
}
}