This is an archive of the discontinued Mercurial Phabricator instance.

Status	Author	Revision
Closed	marmoute	D6898 sidedata: check that the sidedata safely roundtrip
Closed	marmoute	D6897 sidedata: add a debugsidedata command
Closed	marmoute	D6896 sidedata: test we can successfully write sidedata
Closed	marmoute	D6895 sidedata: make sure we don't use the flag if there are not sidedata
Closed	marmoute	D6894 revlog: add the appropriate flag is sidedata are passed to `addrevision`
Closed	marmoute	D6893 sidedata: register the flag processors if the repository allows for it
Closed	marmoute	D6892 sidedata: add a function for _processflagsraw usage
Closed	marmoute	D6891 sidedata: add a function to write sidedata into a raw text
Closed	marmoute	D6890 sidedata: add a function to read sidedata from revlog raw text
Closed	marmoute	D6889 sidedata: add a new module with basic documentation
Closed	marmoute	D6888 sidedata: add a new revision flag constant for side data
Closed	marmoute	D6887 upgrade: detect the side-data format variants
Closed	marmoute	D6886 sidedata: introduce a new requirement to protect the feature

Diff 16768


	from __future__ import absolute_import			from __future__ import absolute_import

	import hashlib			import hashlib
	import struct			import struct

	from .. import error			from .. import error

				## sidedata type constant
				# reserve a block for testing purposes.
				SD_TEST1 = 1
				SD_TEST2 = 2
				SD_TEST3 = 3
				SD_TEST4 = 4
				SD_TEST5 = 5
				SD_TEST6 = 6
				SD_TEST7 = 7

				# internal format constant
	SIDEDATA_HEADER = struct.Struct('>H')			SIDEDATA_HEADER = struct.Struct('>H')
	SIDEDATA_ENTRY = struct.Struct('>HL20s')			SIDEDATA_ENTRY = struct.Struct('>HL20s')

	def sidedatawriteprocessor(rl, text, sidedata):			def sidedatawriteprocessor(rl, text, sidedata):
	sidedata = list(sidedata.items())			sidedata = list(sidedata.items())
	sidedata.sort()			sidedata.sort()
	rawtext = [SIDEDATA_HEADER.pack(len(sidedata))]			rawtext = [SIDEDATA_HEADER.pack(len(sidedata))]
	for key, value in sidedata:			for key, value in sidedata:

	==========================================================			==========================================================
	Test file dedicated to checking side-data related behavior			Test file dedicated to checking side-data related behavior
	==========================================================			==========================================================

				Check data can be written/read from sidedata
				============================================

				$ cat << EOF >> $HGRCPATH
				> [extensions]
				> testsidedata=$TESTDIR/testlib/ext-sidedata.py
				> EOF

				$ hg init test-sidedata --config format.use-side-data=yes
				$ cd test-sidedata
				$ echo aaa > a
				$ hg add a
				$ hg commit -m a --traceback
				$ echo aaa > b
				$ hg add b
				$ hg commit -m b
				$ echo xxx >> a
				$ hg commit -m aa

	Check upgrade behavior			Check upgrade behavior
	======================			======================

	Right now, sidedata has not upgrade support			Right now, sidedata has not upgrade support

	Check that we cannot upgrade to sidedata			Check that we cannot upgrade to sidedata
	----------------------------------------			----------------------------------------

				# ext-sidedata.py - small extension to test the sidedata logic
				#
				# Copyright 2019 Pierre-Yves David <pierre-yves.david@octobus.net)
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				from __future__ import absolute_import

				import hashlib
				import struct

				from mercurial import (
				extensions,
				revlog,
				)

				from mercurial.revlogutils import (
				sidedata,
				)

				def wrapaddrevision(orig, self, text, transaction, link, p1, p2, *args,
				**kwargs):
				if kwargs.get('sidedata') is None:
				kwargs['sidedata'] = {}
				sd = kwargs['sidedata']
				## let's store some arbitrary data just for testing
				# text length
				sd[sidedata.SD_TEST1] = struct.pack('>I', len(text))
				# and sha2 hashes
				sha256 = hashlib.sha256(text).digest()
				sd[sidedata.SD_TEST2] = struct.pack('>32s', sha256)
				return orig(self, text, transaction, link, p1, p2, args, *kwargs)

				def extsetup(ui):
				extensions.wrapfunction(revlog.revlog, 'addrevision', wrapaddrevision)