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https://github.com/facebook/sapling.git
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44343769f8
Summary: We want to rename away from "mercurial". Rather than rename the "mercurial" Python package, we opted to just collapse it into the parent "edenscm" package. This is also a step towards further organizing we want to do around the new project name. To ease the transition wrt hotfixes, we now replace "edenscm.mercurial" with "mercurial" to fix imports within base64-python extensions. Reviewed By: sggutier Differential Revision: D38943169 fbshipit-source-id: 03fa18079c51e2f7fac05d65b127095da3ab7c99
206 lines
4.5 KiB
Python
206 lines
4.5 KiB
Python
# coding=UTF-8
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# Portions Copyright (c) Meta Platforms, Inc. and affiliates.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2.
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# Copyright 2006, 2007 Olivia Mackall <olivia@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import base64
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import zlib
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from edenscm import changegroup, exchange, extensions, filelog, revlog, util
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# Test only: These flags are defined here only in the context of testing the
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# behavior of the flag processor. The canonical way to add flags is to get in
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# touch with the community and make them known in revlog.
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REVIDX_NOOP = 1 << 3
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REVIDX_BASE64 = 1 << 2
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REVIDX_GZIP = 1 << 1
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REVIDX_FAIL = 1
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def validatehash(self, text):
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return True
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def bypass(self, text):
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return False
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def noopdonothing(self, text):
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return (text, True)
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def b64encode(self, text):
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return (base64.b64encode(text), False)
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def b64decode(self, text):
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return (base64.b64decode(text), True)
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def gzipcompress(self, text):
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return (zlib.compress(text), False)
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def gzipdecompress(self, text):
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return (zlib.decompress(text), True)
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def supportedoutgoingversions(orig, repo):
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versions = orig(repo)
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versions.discard("01")
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versions.discard("02")
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versions.add("03")
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return versions
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def allsupportedversions(orig, ui):
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versions = orig(ui)
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versions.add("03")
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return versions
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def noopaddrevision(
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orig,
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=None,
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node=None,
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flags=revlog.REVIDX_DEFAULT_FLAGS,
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):
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if b"[NOOP]" in text:
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flags |= REVIDX_NOOP
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return orig(
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=cachedelta,
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node=node,
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flags=flags,
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)
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def b64addrevision(
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orig,
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=None,
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node=None,
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flags=revlog.REVIDX_DEFAULT_FLAGS,
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):
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if b"[BASE64]" in text:
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flags |= REVIDX_BASE64
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return orig(
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=cachedelta,
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node=node,
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flags=flags,
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)
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def gzipaddrevision(
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orig,
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=None,
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node=None,
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flags=revlog.REVIDX_DEFAULT_FLAGS,
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):
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if b"[GZIP]" in text:
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flags |= REVIDX_GZIP
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return orig(
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=cachedelta,
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node=node,
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flags=flags,
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)
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def failaddrevision(
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orig,
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=None,
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node=None,
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flags=revlog.REVIDX_DEFAULT_FLAGS,
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):
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# This addrevision wrapper is meant to add a flag we will not have
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# transforms registered for, ensuring we handle this error case.
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if b"[FAIL]" in text:
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flags |= REVIDX_FAIL
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return orig(
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self,
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text,
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transaction,
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link,
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p1,
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p2,
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cachedelta=cachedelta,
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node=node,
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flags=flags,
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)
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def extsetup(ui):
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# Enable changegroup3 for flags to be sent over the wire
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wrapfunction = extensions.wrapfunction
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wrapfunction(changegroup, "supportedoutgoingversions", supportedoutgoingversions)
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wrapfunction(changegroup, "allsupportedversions", allsupportedversions)
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# Teach revlog about our test flags
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flags = [REVIDX_NOOP, REVIDX_BASE64, REVIDX_GZIP, REVIDX_FAIL]
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revlog.REVIDX_KNOWN_FLAGS |= util.bitsfrom(flags)
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revlog.REVIDX_FLAGS_ORDER.extend(flags)
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# Teach exchange to use changegroup 3
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for k in exchange._bundlespeccgversions.keys():
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exchange._bundlespeccgversions[k] = "03"
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# Add wrappers for addrevision, responsible to set flags depending on the
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# revision data contents.
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wrapfunction(filelog.filelog, "addrevision", noopaddrevision)
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wrapfunction(filelog.filelog, "addrevision", b64addrevision)
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wrapfunction(filelog.filelog, "addrevision", gzipaddrevision)
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wrapfunction(filelog.filelog, "addrevision", failaddrevision)
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# Register flag processors for each extension
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revlog.addflagprocessor(REVIDX_NOOP, (noopdonothing, noopdonothing, validatehash))
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revlog.addflagprocessor(REVIDX_BASE64, (b64decode, b64encode, bypass))
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revlog.addflagprocessor(REVIDX_GZIP, (gzipdecompress, gzipcompress, bypass))
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