def revchunk(self, revlog, rev, prev, linknode):
node = revlog.node(rev)
p1, p2 = revlog.parentrevs(rev)
base = self.deltaparent(revlog, rev, p1, p2, prev)
prefix = ''
if revlog.iscensored(base) or revlog.iscensored(rev):
try:
delta = revlog.revision(node)
except error.CensoredNodeError as e:
delta = e.tombstone
if base == nullrev:
prefix = mdiff.trivialdiffheader(len(delta))
else:
baselen = revlog.rawsize(base)
prefix = mdiff.replacediffheader(baselen, len(delta))
elif base == nullrev:
delta = revlog.revision(node)
prefix = mdiff.trivialdiffheader(len(delta))
else:
delta = revlog.revdiff(base, rev)
p1n, p2n = revlog.parents(node)
basenode = revlog.node(base)
meta = self.builddeltaheader(node, p1n, p2n, basenode, linknode)
meta += prefix
l = len(meta) + len(delta)
yield chunkheader(l)
yield meta
yield delta
def revchunk(self, revlog, rev, prev, linknode):
node = revlog.node(rev)
p1, p2 = revlog.parentrevs(rev)
base = self.deltaparent(revlog, rev, p1, p2, prev)
prefix = ''
if revlog.iscensored(base) or revlog.iscensored(rev):
try:
delta = revlog.revision(node)
except error.CensoredNodeError as e:
delta = e.tombstone
if base == nullrev:
prefix = mdiff.trivialdiffheader(len(delta))
else:
baselen = revlog.rawsize(base)
prefix = mdiff.replacediffheader(baselen, len(delta))
elif base == nullrev:
delta = revlog.revision(node)
prefix = mdiff.trivialdiffheader(len(delta))
else:
delta = revlog.revdiff(base, rev)
p1n, p2n = revlog.parents(node)
basenode = revlog.node(base)
meta = self.builddeltaheader(node, p1n, p2n, basenode, linknode)
meta += prefix
l = len(meta) + len(delta)
yield chunkheader(l)
yield meta
yield delta
def revchunk(self, revlog, rev, prev, linknode):
node = revlog.node(rev)
p1, p2 = revlog.parentrevs(rev)
base = self.deltaparent(revlog, rev, p1, p2, prev)
prefix = ''
if revlog.iscensored(base) or revlog.iscensored(rev):
try:
delta = revlog.revision(node)
except error.CensoredNodeError, e:
delta = e.tombstone
if base == nullrev:
prefix = mdiff.trivialdiffheader(len(delta))
else:
baselen = revlog.rawsize(base)
prefix = mdiff.replacediffheader(baselen, len(delta))
def revchunk(self, revlog, rev, prev, linknode):
node = revlog.node(rev)
p1, p2 = revlog.parentrevs(rev)
base = self.deltaparent(revlog, rev, p1, p2, prev)
prefix = ''
if revlog.iscensored(base) or revlog.iscensored(rev):
try:
delta = revlog.revision(node)
except error.CensoredNodeError, e:
delta = e.tombstone
if base == nullrev:
prefix = mdiff.trivialdiffheader(len(delta))
else:
baselen = revlog.rawsize(base)
prefix = mdiff.replacediffheader(baselen, len(delta))
def _peek_iscensored(self, baserev, delta, flush):
"""Quickly check if a delta produces a censored revision."""
# Fragile heuristic: unless new file meta keys are added alphabetically
# preceding "censored", all censored revisions are prefixed by
# "\1\ncensored:". A delta producing such a censored revision must be a
# full-replacement delta, so we inspect the first and only patch in the
# delta for this prefix.
hlen = struct.calcsize(">lll")
if len(delta) <= hlen:
return False
oldlen = self.rawsize(baserev)
newlen = len(delta) - hlen
if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen):
return False
add = "\1\ncensored:"
addlen = len(add)
return newlen >= addlen and delta[hlen:hlen + addlen] == add
