private static RefList <Ref> parsePackedRefs(TextReader br)
{
var all = new RefList <Ref> .Builder <Ref>();
Ref last = null;
bool peeled = false;
bool needSort = false;
string p;
while ((p = br.ReadLine()) != null)
{
if (p[0] == '#')
{
if (p.StartsWith(PACKED_REFS_HEADER))
{
p = p.Substring(PACKED_REFS_HEADER.Length);
peeled = p.Contains(PACKED_REFS_PEELED);
}
continue;
}
if (p[0] == '^')
{
if (last == null)
{
throw new IOException("Peeled line before ref.");
}
ObjectId id = ObjectId.FromString(p.Substring(1));
last = new PeeledTag(Storage.Packed, last.getName(), last
.getObjectId(), id);
all.set(all.size() - 1, last);
continue;
}
int sp = p.IndexOf(' ');
ObjectId id2 = ObjectId.FromString(p.Slice(0, sp));
string name = copy(p, sp + 1, p.Length);
ObjectIdRef cur;
if (peeled)
{
cur = new PeeledNonTag(Storage.Packed, name, id2);
}
else
{
cur = new Unpeeled(Storage.Packed, name, id2);
}
if (last != null && RefComparator.compareTo(last, cur) > 0)
{
needSort = true;
}
all.add(cur);
last = cur;
}
if (needSort)
{
all.sort();
}
return(all.toRefList());
}
private void scanOne(string name)
{
LooseRef cur;
if (curIdx < curLoose.size())
{
do
{
cur = curLoose.get(curIdx);
int cmp = RefComparator.compareTo(cur, name);
if (cmp < 0)
{
// Reference is not loose anymore, its been deleted.
// Skip the name in the new result list.
if (newLoose == null)
{
newLoose = curLoose.copy(curIdx);
}
curIdx++;
cur = null;
continue;
}
if (cmp > 0) // Newly discovered loose reference.
{
cur = null;
}
break;
} while (curIdx < curLoose.size());
}
else
{
cur = null; // Newly discovered loose reference.
}
LooseRef n;
try
{
n = _refDirectory.scanRef(cur, name);
}
catch (IOException)
{
n = null;
}
if (n != null)
{
if (cur != n && newLoose == null)
{
newLoose = curLoose.copy(curIdx);
}
if (newLoose != null)
{
newLoose.add(n);
}
if (n.isSymbolic())
{
symbolic.add(n);
}
}
else if (cur != null)
{
// Tragically, this file is no longer a loose reference.
// Kill our cached entry of it.
if (newLoose == null)
{
newLoose = curLoose.copy(curIdx);
}
}
if (cur != null)
{
curIdx++;
}
}