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|
# coding=UTF-8
from __future__ import absolute_import
import base64
import zlib
from mercurial import (
changegroup,
exchange,
extensions,
revlog,
util,
)
from mercurial.revlogutils import flagutil
# Test only: These flags are defined here only in the context of testing the
# behavior of the flag processor. The canonical way to add flags is to get in
# touch with the community and make them known in revlog.
REVIDX_NOOP = 1 << 3
REVIDX_BASE64 = 1 << 2
REVIDX_GZIP = 1 << 1
REVIDX_FAIL = 1
def validatehash(self, text):
return True
def bypass(self, text):
return False
def noopdonothing(self, text, sidedata):
return (text, True)
def noopdonothingread(self, text):
return (text, True, {})
def b64encode(self, text, sidedata):
return (base64.b64encode(text), False)
def b64decode(self, text):
return (base64.b64decode(text), True, {})
def gzipcompress(self, text, sidedata):
return (zlib.compress(text), False)
def gzipdecompress(self, text):
return (zlib.decompress(text), True, {})
def supportedoutgoingversions(orig, repo):
versions = orig(repo)
versions.discard(b'01')
versions.discard(b'02')
versions.add(b'03')
return versions
def allsupportedversions(orig, ui):
versions = orig(ui)
versions.add(b'03')
return versions
def makewrappedfile(obj):
class wrappedfile(obj.__class__):
def addrevision(
self,
text,
transaction,
link,
p1,
p2,
cachedelta=None,
node=None,
flags=flagutil.REVIDX_DEFAULT_FLAGS,
):
if b'[NOOP]' in text:
flags |= REVIDX_NOOP
if b'[BASE64]' in text:
flags |= REVIDX_BASE64
if b'[GZIP]' in text:
flags |= REVIDX_GZIP
# This addrevision wrapper is meant to add a flag we will not have
# transforms registered for, ensuring we handle this error case.
if b'[FAIL]' in text:
flags |= REVIDX_FAIL
return super(wrappedfile, self).addrevision(
text,
transaction,
link,
p1,
p2,
cachedelta=cachedelta,
node=node,
flags=flags,
)
obj.__class__ = wrappedfile
def reposetup(ui, repo):
class wrappingflagprocessorrepo(repo.__class__):
def file(self, f):
orig = super(wrappingflagprocessorrepo, self).file(f)
makewrappedfile(orig)
return orig
repo.__class__ = wrappingflagprocessorrepo
def extsetup(ui):
# Enable changegroup3 for flags to be sent over the wire
wrapfunction = extensions.wrapfunction
wrapfunction(
changegroup, 'supportedoutgoingversions', supportedoutgoingversions
)
wrapfunction(changegroup, 'allsupportedversions', allsupportedversions)
# Teach revlog about our test flags
flags = [REVIDX_NOOP, REVIDX_BASE64, REVIDX_GZIP, REVIDX_FAIL]
flagutil.REVIDX_KNOWN_FLAGS |= util.bitsfrom(flags)
revlog.REVIDX_FLAGS_ORDER.extend(flags)
# Teach exchange to use changegroup 3
for k in exchange._bundlespeccontentopts.keys():
exchange._bundlespeccontentopts[k][b"cg.version"] = b"03"
# Register flag processors for each extension
flagutil.addflagprocessor(
REVIDX_NOOP, (noopdonothingread, noopdonothing, validatehash,)
)
flagutil.addflagprocessor(
REVIDX_BASE64, (b64decode, b64encode, bypass,),
)
flagutil.addflagprocessor(
REVIDX_GZIP, (gzipdecompress, gzipcompress, bypass)
)
|
