public virtual void parseHeader()
{
// Parse "@@ -236,9 +236,9 @@ protected boolean"
//
byte[] buf = _file.Buffer;
var ptr = new MutableInteger
{
value = RawParseUtils.nextLF(buf, _startOffset, (byte)' ')
};
_oldImage.StartLine = -1 * RawParseUtils.parseBase10(buf, ptr.value, ptr);
_oldImage.LineCount = buf[ptr.value] == ',' ? RawParseUtils.parseBase10(buf, ptr.value + 1, ptr) : 1;
NewStartLine = RawParseUtils.parseBase10(buf, ptr.value + 1, ptr);
NewLineCount = buf[ptr.value] == ',' ? RawParseUtils.parseBase10(buf, ptr.value + 1, ptr) : 1;
}
public override void parseHeader()
{
// Parse "@@@ -55,12 -163,13 +163,15 @@@ protected boolean"
//
byte[] buf = File.Buffer;
var ptr = new MutableInteger
{
value = RawParseUtils.nextLF(buf, StartOffset, (byte)' ')
};
_old.ForEach(coi =>
{
coi.StartLine = -1 * RawParseUtils.parseBase10(Buffer, ptr.value, ptr);
coi.LineCount = buf[ptr.value] == ',' ?
RawParseUtils.parseBase10(buf, ptr.value + 1, ptr) : 1;
});
NewStartLine = RawParseUtils.parseBase10(buf, ptr.value + 1, ptr);
NewLineCount = buf[ptr.value] == ',' ? RawParseUtils.parseBase10(buf, ptr.value + 1, ptr) : 1;
}
public int parseHunk(int ptr, int end)
{
byte[] buf = file.Buffer;
if (RawParseUtils.match(buf, ptr, LITERAL) >= 0)
{
type = Type.LITERAL_DEFLATED;
length = RawParseUtils.parseBase10(buf, ptr + LITERAL.Length, null);
}
else if (RawParseUtils.match(buf, ptr, DELTA) >= 0)
{
type = Type.DELTA_DEFLATED;
length = RawParseUtils.parseBase10(buf, ptr + DELTA.Length, null);
}
else
{
// Not a valid binary hunk. Signal to the caller that
// we cannot parse any further and that this line should
// be treated otherwise.
//
return(-1);
}
ptr = RawParseUtils.nextLF(buf, ptr);
// Skip until the first blank line; that is the end of the binary
// encoded information in this hunk. To save time we don't do a
// validation of the binary data at this point.
//
while (ptr < end)
{
bool empty = buf[ptr] == '\n';
ptr = RawParseUtils.nextLF(buf, ptr);
if (empty)
{
break;
}
}
return(ptr);
}
private int personIdent(byte[] raw, int ptr)
{
int emailB = RawParseUtils.nextLF(raw, ptr, (byte)'<');
if (emailB == ptr || raw[emailB - 1] != '<')
{
return(-1);
}
int emailE = RawParseUtils.nextLF(raw, emailB, (byte)'>');
if (emailE == emailB || raw[emailE - 1] != '>')
{
return(-1);
}
if (emailE == raw.Length || raw[emailE] != ' ')
{
return(-1);
}
RawParseUtils.parseBase10(raw, emailE + 1, ptrout); // when
ptr = ptrout.value;
if (emailE + 1 == ptr)
{
return(-1);
}
if (ptr == raw.Length || raw[ptr] != ' ')
{
return(-1);
}
RawParseUtils.parseBase10(raw, ptr + 1, ptrout); // tz offset
if (ptr + 1 == ptrout.value)
{
return(-1);
}
return(ptrout.value);
}
public void parseCanonical(RevWalk walk, byte[] raw)
{
MutableObjectId idBuffer = walk.IdBuffer;
idBuffer.FromString(raw, 5);
_tree = walk.lookupTree(idBuffer);
int ptr = 46;
if (Parents == null)
{
var pList = new RevCommit[1];
int nParents = 0;
while (true)
{
if (raw[ptr] != (byte)'p')
{
break;
}
idBuffer.FromString(raw, ptr + 7);
RevCommit p = walk.lookupCommit(idBuffer);
if (nParents == 0)
{
pList[nParents++] = p;
}
else if (nParents == 1)
{
pList = new[] { pList[0], p };
nParents = 2;
}
else
{
if (pList.Length <= nParents)
{
RevCommit[] old = pList;
pList = new RevCommit[pList.Length + 32];
Array.Copy(old, 0, pList, 0, nParents);
}
pList[nParents++] = p;
}
ptr += 48;
}
if (nParents != pList.Length)
{
RevCommit[] old = pList;
pList = new RevCommit[nParents];
Array.Copy(old, 0, pList, 0, nParents);
}
Parents = pList;
}
// extract time from "committer "
ptr = RawParseUtils.committer(raw, ptr);
if (ptr > 0)
{
ptr = RawParseUtils.nextLF(raw, ptr, (byte)'>');
// In 2038 commitTime will overflow unless it is changed to long.
CommitTime = RawParseUtils.parseBase10(raw, ptr, null);
}
if (walk.isRetainBody())
{
_buffer = raw;
}
Flags |= PARSED;
}
public virtual int parseGitHeaders(int ptr, int end)
{
while (ptr < end)
{
int eol = RawParseUtils.nextLF(Buffer, ptr);
if (isHunkHdr(Buffer, ptr, eol) >= 1)
{
// First hunk header; break out and parse them later.
break;
}
if (RawParseUtils.match(Buffer, ptr, OLD_NAME) >= 0)
{
ParseOldName(ptr, eol);
}
else if (RawParseUtils.match(Buffer, ptr, NEW_NAME) >= 0)
{
ParseNewName(ptr, eol);
}
else if (RawParseUtils.match(Buffer, ptr, OldModeString) >= 0)
{
_oldMode = ParseFileMode(ptr + OldModeString.Length, eol);
}
else if (RawParseUtils.match(Buffer, ptr, NewModeString) >= 0)
{
_newMode = ParseFileMode(ptr + NewModeString.Length, eol);
}
else if (RawParseUtils.match(Buffer, ptr, DeletedFileMode) >= 0)
{
_oldMode = ParseFileMode(ptr + DeletedFileMode.Length, eol);
_newMode = FileMode.Missing;
ChangeType = ChangeTypeEnum.DELETE;
}
else if (RawParseUtils.match(Buffer, ptr, NewFileMode) >= 0)
{
ParseNewFileMode(ptr, eol);
}
else if (RawParseUtils.match(Buffer, ptr, CopyFrom) >= 0)
{
oldName = ParseName(oldName, ptr + CopyFrom.Length, eol);
ChangeType = ChangeTypeEnum.COPY;
}
else if (RawParseUtils.match(Buffer, ptr, CopyTo) >= 0)
{
newName = ParseName(newName, ptr + CopyTo.Length, eol);
ChangeType = ChangeTypeEnum.COPY;
}
else if (RawParseUtils.match(Buffer, ptr, RenameOld) >= 0)
{
oldName = ParseName(oldName, ptr + RenameOld.Length, eol);
ChangeType = ChangeTypeEnum.RENAME;
}
else if (RawParseUtils.match(Buffer, ptr, RenameNew) >= 0)
{
newName = ParseName(newName, ptr + RenameNew.Length, eol);
ChangeType = ChangeTypeEnum.RENAME;
}
else if (RawParseUtils.match(Buffer, ptr, RenameFrom) >= 0)
{
oldName = ParseName(oldName, ptr + RenameFrom.Length, eol);
ChangeType = ChangeTypeEnum.RENAME;
}
else if (RawParseUtils.match(Buffer, ptr, RenameTo) >= 0)
{
newName = ParseName(newName, ptr + RenameTo.Length, eol);
ChangeType = ChangeTypeEnum.RENAME;
}
else if (RawParseUtils.match(Buffer, ptr, SimilarityIndex) >= 0)
{
_score = RawParseUtils.parseBase10(Buffer, ptr + SimilarityIndex.Length, null);
}
else if (RawParseUtils.match(Buffer, ptr, DissimilarityIndex) >= 0)
{
_score = RawParseUtils.parseBase10(Buffer, ptr + DissimilarityIndex.Length, null);
}
else if (RawParseUtils.match(Buffer, ptr, Index) >= 0)
{
ParseIndexLine(ptr + Index.Length, eol);
}
else
{
// Probably an empty patch (stat dirty).
break;
}
ptr = eol;
}
return(ptr);
}
private UnpackedObjectLoader(byte[] compressed, AnyObjectId id)
{
// Try to determine if this is a legacy format loose object or
// a new style loose object. The legacy format was completely
// compressed with zlib so the first byte must be 0x78 (15-bit
// window size, deflated) and the first 16 bit word must be
// evenly divisible by 31. Otherwise its a new style loose
// object.
//
Inflater inflater = InflaterCache.Instance.get();
try
{
int fb = compressed[0] & 0xff;
if (fb == 0x78 && (((fb << 8) | compressed[1] & 0xff) % 31) == 0)
{
inflater.SetInput(compressed);
var hdr = new byte[64];
int avail = 0;
while (!inflater.IsFinished && avail < hdr.Length)
{
try
{
avail += inflater.Inflate(hdr, avail, hdr.Length - avail);
}
catch (IOException dfe)
{
var coe = new CorruptObjectException(id, "bad stream", dfe);
//inflater.end();
throw coe;
}
}
if (avail < 5)
{
throw new CorruptObjectException(id, "no header");
}
var p = new MutableInteger();
_objectType = Constants.decodeTypeString(id, hdr, (byte)' ', p);
_objectSize = RawParseUtils.parseBase10(hdr, p.value, p);
if (_objectSize < 0)
{
throw new CorruptObjectException(id, "negative size");
}
if (hdr[p.value++] != 0)
{
throw new CorruptObjectException(id, "garbage after size");
}
_bytes = new byte[_objectSize];
if (p.value < avail)
{
Array.Copy(hdr, p.value, _bytes, 0, avail - p.value);
}
Decompress(id, inflater, avail - p.value);
}
else
{
int p = 0;
int c = compressed[p++] & 0xff;
int typeCode = (c >> 4) & 7;
int size = c & 15;
int shift = 4;
while ((c & 0x80) != 0)
{
c = compressed[p++] & 0xff;
size += (c & 0x7f) << shift;
shift += 7;
}
switch (typeCode)
{
case Constants.OBJ_COMMIT:
case Constants.OBJ_TREE:
case Constants.OBJ_BLOB:
case Constants.OBJ_TAG:
_objectType = typeCode;
break;
default:
throw new CorruptObjectException(id, "invalid type");
}
_objectSize = size;
_bytes = new byte[_objectSize];
inflater.SetInput(compressed, p, compressed.Length - p);
Decompress(id, inflater, 0);
}
}
finally
{
InflaterCache.Instance.release(inflater);
}
}
public DirCacheTree(byte[] @in, MutableInteger off, DirCacheTree myParent)
{
_parent = myParent;
int ptr = RawParseUtils.next(@in, off.value, (byte)'\0');
int nameLen = ptr - off.value - 1;
if (nameLen > 0)
{
_encodedName = new byte[nameLen];
Array.Copy(@in, off.value, _encodedName, 0, nameLen);
}
else
{
_encodedName = NoName;
}
_entrySpan = RawParseUtils.parseBase10(@in, ptr, off);
int subcnt = RawParseUtils.parseBase10(@in, off.value, off);
off.value = RawParseUtils.next(@in, off.value, (byte)'\n');
if (_entrySpan >= 0)
{
// Valid trees have a positive entry count and an id of a
// tree object that should exist in the object database.
//
_id = ObjectId.FromRaw(@in, off.value);
off.value += Constants.OBJECT_ID_LENGTH;
}
if (subcnt > 0)
{
bool alreadySorted = true;
_children = new DirCacheTree[subcnt];
for (int i = 0; i < subcnt; i++)
{
_children[i] = new DirCacheTree(@in, off, this);
// C Git's ordering differs from our own; it prefers to
// sort by Length first. This sometimes produces a sort
// we do not desire. On the other hand it may have been
// created by us, and be sorted the way we want.
//
if (alreadySorted && i > 0 &&
TreeComparison(_children[i - 1], _children[i]) > 0)
{
alreadySorted = false;
}
}
if (!alreadySorted)
{
Array.Sort(_children, TreeComparison);
}
}
else
{
// Leaf level trees have no children, only (file) entries.
//
_children = NoChildren;
}
_childCount = subcnt;
}
