internal WalkPushConnection(WalkTransport walkTransport, WalkRemoteObjectDatabase
w)
{
transport = (NGit.Transport.Transport)walkTransport;
local = transport.local;
uri = transport.GetURI();
dest = w;
}
/// <exception cref="NGit.Errors.TransportException"></exception>
private bool DownloadLooseObject(AnyObjectId id, string looseName, WalkRemoteObjectDatabase
remote)
{
try
{
byte[] compressed = remote.Open(looseName).ToArray();
VerifyAndInsertLooseObject(id, compressed);
return(true);
}
catch (FileNotFoundException e)
{
// Not available in a loose format from this alternate?
// Try another strategy to get the object.
//
RecordError(id, e);
return(false);
}
catch (IOException e)
{
throw new TransportException(MessageFormat.Format(JGitText.Get().cannotDownload,
id.Name), e);
}
}
internal RemotePack(WalkFetchConnection _enclosing, WalkRemoteObjectDatabase c, string
pn)
{
this._enclosing = _enclosing;
this.connection = c;
this.packName = pn;
this.idxName = Sharpen.Runtime.Substring(this.packName, 0, this.packName.Length -
5) + ".idx";
string tn = this.idxName;
if (tn.StartsWith("pack-"))
{
tn = Sharpen.Runtime.Substring(tn, 5);
}
if (tn.EndsWith(".idx"))
{
tn = Sharpen.Runtime.Substring(tn, 0, tn.Length - 4);
}
if (this._enclosing.local.ObjectDatabase is ObjectDirectory)
{
this.tmpIdx = new FilePath(((ObjectDirectory)this._enclosing.local.ObjectDatabase
).GetDirectory(), "walk-" + tn + ".walkidx");
}
}
internal RemotePack(WalkFetchConnection _enclosing, WalkRemoteObjectDatabase c, string
pn)
{
this._enclosing = _enclosing;
this.connection = c;
this.packName = pn;
this.idxName = Sharpen.Runtime.Substring(this.packName, 0, this.packName.Length -
5) + ".idx";
string tn = this.idxName;
if (tn.StartsWith("pack-"))
{
tn = Sharpen.Runtime.Substring(tn, 5);
}
if (tn.EndsWith(".idx"))
{
tn = Sharpen.Runtime.Substring(tn, 0, tn.Length - 4);
}
if (this._enclosing.local.ObjectDatabase is ObjectDirectory)
{
this.tmpIdx = new FilePath(((ObjectDirectory)this._enclosing.local.ObjectDatabase
).GetDirectory(), "walk-" + tn + ".walkidx");
}
}
/// <exception cref="NGit.Errors.TransportException"></exception>
private bool DownloadLooseObject(AnyObjectId id, string looseName, WalkRemoteObjectDatabase
remote)
{
try
{
byte[] compressed = remote.Open(looseName).ToArray();
VerifyAndInsertLooseObject(id, compressed);
return true;
}
catch (FileNotFoundException e)
{
// Not available in a loose format from this alternate?
// Try another strategy to get the object.
//
RecordError(id, e);
return false;
}
catch (IOException e)
{
throw new TransportException(MessageFormat.Format(JGitText.Get().cannotDownload,
id.Name), e);
}
}
internal WalkFetchConnection(WalkTransport t, WalkRemoteObjectDatabase w)
{
NGit.Transport.Transport wt = (NGit.Transport.Transport)t;
local = wt.local;
objCheck = wt.IsCheckFetchedObjects() ? new ObjectChecker() : null;
inserter = local.NewObjectInserter();
reader = local.NewObjectReader();
remotes = new AList<WalkRemoteObjectDatabase>();
remotes.AddItem(w);
unfetchedPacks = new List<WalkFetchConnection.RemotePack>();
packsConsidered = new HashSet<string>();
noPacksYet = new List<WalkRemoteObjectDatabase>();
noPacksYet.AddItem(w);
noAlternatesYet = new List<WalkRemoteObjectDatabase>();
noAlternatesYet.AddItem(w);
fetchErrors = new Dictionary<ObjectId, IList<Exception>>();
packLocks = new AList<PackLock>(4);
revWalk = new RevWalk(reader);
revWalk.SetRetainBody(false);
treeWalk = new TreeWalk(reader);
COMPLETE = revWalk.NewFlag("COMPLETE");
IN_WORK_QUEUE = revWalk.NewFlag("IN_WORK_QUEUE");
LOCALLY_SEEN = revWalk.NewFlag("LOCALLY_SEEN");
localCommitQueue = new DateRevQueue();
workQueue = new List<ObjectId>();
}
/// <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;
}
}
internal WalkPushConnection(WalkTransport walkTransport, WalkRemoteObjectDatabase
w)
{
transport = (NGit.Transport.Transport)walkTransport;
local = transport.local;
uri = transport.GetURI();
dest = w;
}
