419         self._deltabothparents = True

   419         self._deltabothparents = True

   420         self.index = None

   420         self.index = None

   421         # Mapping of partial identifiers to full nodes.

   421         # Mapping of partial identifiers to full nodes.

   422         self._pcache = {}

   422         self._pcache = {}

   423         # Mapping of revision integer to full node.

   423         # Mapping of revision integer to full node.

   425         self._compengine = b'zlib'

   424         self._compengine = b'zlib'

   426         self._compengineopts = {}

   425         self._compengineopts = {}

   427         self._maxdeltachainspan = -1

   426         self._maxdeltachainspan = -1

   428         self._withsparseread = False

   427         self._withsparseread = False

   429         self._sparserevlog = False

   428         self._sparserevlog = False

  2221             p2r,

  2220             p2r,

  2222             node,

  2221             node,

  2223         )

  2222         )

  2224         self.index.append(e)

  2223         self.index.append(e)

  2225 

  2224 

  2231         entry = self._io.packentry(e, self.node, self.version, curr)

  2225         entry = self._io.packentry(e, self.node, self.version, curr)

  2232         self._writeentry(

  2226         self._writeentry(

  2233             transaction, ifh, dfh, entry, deltainfo.data, link, offset

  2227             transaction, ifh, dfh, entry, deltainfo.data, link, offset

  2234         )

  2228         )

  2235 

  2229 

  2460         self._revisioncache = None

  2454         self._revisioncache = None

  2461         self._chaininfocache = {}

  2455         self._chaininfocache = {}

  2462         self._chunkclear()

  2456         self._chunkclear()

  2463 

  2457 

  2464         del self.index[rev:-1]

  2458         del self.index[rev:-1]

  2466 

  2459 

  2467     def checksize(self):

  2460     def checksize(self):

  2468         """Check size of index and data files

  2461         """Check size of index and data files

  2469 

  2462 

  2470         return a (dd, di) tuple.

  2463         return a (dd, di) tuple.