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Differential D1950

bundle2: fix the formatting of the stream part requirements
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Authored by lothiraldan on Jan 31 2018, 11:24 AM.

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rHG768326377e4d: bundle2: fix the formatting of the stream part requirements
Summary

Use the same pre-encoded normalization as bundlespecs for the stream v2 part
requirements. As it touch the wire protocol, it needs to change before the
release.

This was spotted by Gregory Szorc.

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rHG Mercurial
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Event Timeline

lothiraldan created this revision.Jan 31 2018, 11:24 AM
Closed by commit rHG768326377e4d: bundle2: fix the formatting of the stream part requirements (authored by lothiraldan). · Explain WhyJan 31 2018, 12:28 PM
This revision was automatically updated to reflect the committed changes.
indygreg added a subscriber: indygreg.Jan 31 2018, 12:29 PM

I queued these first two for stable because of backwards compatibility concerns for the wire protocol. As much as it pains me to say it, the rest of the series doesn't seem appropriate for stable (even though I wish we had the functionality in 4.5).

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Changeset List

Diff 5022

mercurial/bundle2.py

# they came from the --pushvar flag. # they came from the --pushvar flag.
key = "USERVAR_" + key key = "USERVAR_" + key
hookargs[key] = value hookargs[key] = value
op.addhookargs(hookargs) op.addhookargs(hookargs)
@parthandler('stream2', ('requirements', 'filecount', 'bytecount')) @parthandler('stream2', ('requirements', 'filecount', 'bytecount'))
def handlestreamv2bundle(op, part): def handlestreamv2bundle(op, part):
requirements = part.params['requirements'].split() requirements = urlreq.unquote(part.params['requirements']).split(',')
filecount = int(part.params['filecount']) filecount = int(part.params['filecount'])
bytecount = int(part.params['bytecount']) bytecount = int(part.params['bytecount'])
repo = op.repo repo = op.repo
if len(repo): if len(repo):
msg = _('cannot apply stream clone to non empty repository') msg = _('cannot apply stream clone to non empty repository')
raise error.Abort(msg) raise error.Abort(msg)
repo.ui.debug('applying stream bundle\n') repo.ui.debug('applying stream bundle\n')
streamclone.applybundlev2(repo, part, filecount, bytecount, streamclone.applybundlev2(repo, part, filecount, bytecount,
requirements) requirements)

mercurial/exchange.py

'advertising it; the client may be buggy')) 'advertising it; the client may be buggy'))
# Stream clones don't compress well. And compression undermines a # Stream clones don't compress well. And compression undermines a
# goal of stream clones, which is to be fast. Communicate the desire # goal of stream clones, which is to be fast. Communicate the desire
# to avoid compression to consumers of the bundle. # to avoid compression to consumers of the bundle.
bundler.prefercompressed = False bundler.prefercompressed = False
filecount, bytecount, it = streamclone.generatev2(repo) filecount, bytecount, it = streamclone.generatev2(repo)
requirements = ' '.join(sorted(repo.requirements)) requirements = _formatrequirementsspec(repo.requirements)
part = bundler.newpart('stream2', data=it) part = bundler.newpart('stream2', data=it)
part.addparam('bytecount', '%d' % bytecount, mandatory=True) part.addparam('bytecount', '%d' % bytecount, mandatory=True)
part.addparam('filecount', '%d' % filecount, mandatory=True) part.addparam('filecount', '%d' % filecount, mandatory=True)
part.addparam('requirements', requirements, mandatory=True) part.addparam('requirements', requirements, mandatory=True)
@getbundle2partsgenerator('changegroup') @getbundle2partsgenerator('changegroup')
def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None, def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None,
b2caps=None, heads=None, common=None, **kwargs): b2caps=None, heads=None, common=None, **kwargs):

tests/test-clone-uncompressed.t

getbundle requests with stream=1 are uncompressed getbundle requests with stream=1 are uncompressed
$ get-with-headers.py $LOCALIP:$HGPORT '?cmd=getbundle' content-type --bodyfile body --hgproto '0.1 0.2 comp=zlib,none' --requestheader "x-hgarg-1=bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=0000000000000000000000000000000000000000&heads=c17445101a72edac06facd130d14808dfbd5c7c2&stream=1" $ get-with-headers.py $LOCALIP:$HGPORT '?cmd=getbundle' content-type --bodyfile body --hgproto '0.1 0.2 comp=zlib,none' --requestheader "x-hgarg-1=bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=0000000000000000000000000000000000000000&heads=c17445101a72edac06facd130d14808dfbd5c7c2&stream=1"
200 Script output follows 200 Script output follows
content-type: application/mercurial-0.2 content-type: application/mercurial-0.2
$ f --size --hex --bytes 256 body $ f --size --hex --bytes 256 body
body: size=112222 body: size=112230
0000: 04 6e 6f 6e 65 48 47 32 30 00 00 00 00 00 00 00 |.noneHG20.......| 0000: 04 6e 6f 6e 65 48 47 32 30 00 00 00 00 00 00 00 |.noneHG20.......|
0010: 68 07 53 54 52 45 41 4d 32 00 00 00 00 03 00 09 |h.STREAM2.......| 0010: 70 07 53 54 52 45 41 4d 32 00 00 00 00 03 00 09 |p.STREAM2.......|
0020: 05 09 04 0c 2d 62 79 74 65 63 6f 75 6e 74 39 38 |....-bytecount98| 0020: 05 09 04 0c 35 62 79 74 65 63 6f 75 6e 74 39 38 |....5bytecount98|
0030: 37 35 38 66 69 6c 65 63 6f 75 6e 74 31 30 33 30 |758filecount1030| 0030: 37 35 38 66 69 6c 65 63 6f 75 6e 74 31 30 33 30 |758filecount1030|
0040: 72 65 71 75 69 72 65 6d 65 6e 74 73 64 6f 74 65 |requirementsdote| 0040: 72 65 71 75 69 72 65 6d 65 6e 74 73 64 6f 74 65 |requirementsdote|
0050: 6e 63 6f 64 65 20 66 6e 63 61 63 68 65 20 67 65 |ncode fncache ge| 0050: 6e 63 6f 64 65 25 32 43 66 6e 63 61 63 68 65 25 |ncode%2Cfncache%|
0060: 6e 65 72 61 6c 64 65 6c 74 61 20 72 65 76 6c 6f |neraldelta revlo| 0060: 32 43 67 65 6e 65 72 61 6c 64 65 6c 74 61 25 32 |2Cgeneraldelta%2|
0070: 67 76 31 20 73 74 6f 72 65 00 00 80 00 73 08 42 |gv1 store....s.B| 0070: 43 72 65 76 6c 6f 67 76 31 25 32 43 73 74 6f 72 |Crevlogv1%2Cstor|
0080: 64 61 74 61 2f 30 2e 69 00 03 00 01 00 00 00 00 |data/0.i........| 0080: 65 00 00 80 00 73 08 42 64 61 74 61 2f 30 2e 69 |e....s.Bdata/0.i|
0090: 00 00 00 02 00 00 00 01 00 00 00 00 00 00 00 01 |................| 0090: 00 03 00 01 00 00 00 00 00 00 00 02 00 00 00 01 |................|
00a0: ff ff ff ff ff ff ff ff 80 29 63 a0 49 d3 23 87 |.........)c.I.#.| 00a0: 00 00 00 00 00 00 00 01 ff ff ff ff ff ff ff ff |................|
00b0: bf ce fe 56 67 92 67 2c 69 d1 ec 39 00 00 00 00 |...Vg.g,i..9....| 00b0: 80 29 63 a0 49 d3 23 87 bf ce fe 56 67 92 67 2c |.)c.I.#....Vg.g,|
00c0: 00 00 00 00 00 00 00 00 75 30 73 08 42 64 61 74 |........u0s.Bdat| 00c0: 69 d1 ec 39 00 00 00 00 00 00 00 00 00 00 00 00 |i..9............|
00d0: 61 2f 31 2e 69 00 03 00 01 00 00 00 00 00 00 00 |a/1.i...........| 00d0: 75 30 73 08 42 64 61 74 61 2f 31 2e 69 00 03 00 |u0s.Bdata/1.i...|
00e0: 02 00 00 00 01 00 00 00 00 00 00 00 01 ff ff ff |................| 00e0: 01 00 00 00 00 00 00 00 02 00 00 00 01 00 00 00 |................|
00f0: ff ff ff ff ff f9 76 da 1d 0d f2 25 6c de 08 db |......v....%l...| 00f0: 00 00 00 00 01 ff ff ff ff ff ff ff ff f9 76 da |..............v.|
--uncompressed is an alias to --stream --uncompressed is an alias to --stream
#if stream-legacy #if stream-legacy
$ hg clone --uncompressed -U http://localhost:$HGPORT clone1-uncompressed $ hg clone --uncompressed -U http://localhost:$HGPORT clone1-uncompressed
streaming all changes streaming all changes
1027 files to transfer, 96.3 KB of data 1027 files to transfer, 96.3 KB of data
transferred 96.3 KB in * seconds (*/sec) (glob) transferred 96.3 KB in * seconds (*/sec) (glob)