Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/streamclone.py @ 32764:33b7283a3828

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
streamclone: consider secret changesets (BC) (issue5589) Previously, a repo containing secret changesets would be served via stream clone, transferring those secret changesets. While secret changesets aren't meant to imply strong security (if you really want to keep them secret, others shouldn't have read access to the repo), we should at least make an effort to protect secret changesets when possible. After this commit, we no longer serve stream clones for repos containing secret changesets by default. This is backwards incompatible behavior. In case anyone is relying on the behavior, we provide a config option to opt into the old behavior. Note that this defense is only beneficial for remote repos accessed via the wire protocol: if a client has access to the files backing a repo, they can get to the raw data and see secret revisions.
author Gregory Szorc <gregory.szorc@gmail.com>
date Fri, 09 Jun 2017 10:41:13 -0700
parents 076f1ff43f0f
children b045344fe35e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
26441
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
1 # streamclone.py - producing and consuming streaming repository data
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
2 #
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
3 # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com>
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
4 #
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
5 # This software may be used and distributed according to the terms of the
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
6 # GNU General Public License version 2 or any later version.
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
7
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
8 from __future__ import absolute_import
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
9
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
10 import struct
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
11
26442
ef8d27f53204 streamclone: move stream_in() from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26441
diff changeset
12 from .i18n import _
26441
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
13 from . import (
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
14 branchmap,
26442
ef8d27f53204 streamclone: move stream_in() from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26441
diff changeset
15 error,
32764
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
16 phases,
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
17 store,
26442
ef8d27f53204 streamclone: move stream_in() from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26441
diff changeset
18 util,
26441
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
19 )
56527b886d1d streamclone: move applystreamclone() from localrepo.py
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
20
26467
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
21 def canperformstreamclone(pullop, bailifbundle2supported=False):
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
22 """Whether it is possible to perform a streaming clone as part of pull.
26445
f134fb33c906 streamclone: move streaming clone logic from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26444
diff changeset
23
26467
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
24 ``bailifbundle2supported`` will cause the function to return False if
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
25 bundle2 stream clones are supported. It should only be called by the
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
26 legacy stream clone code path.
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
27
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
28 Returns a tuple of (supported, requirements). ``supported`` is True if
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
29 streaming clone is supported and False otherwise. ``requirements`` is
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
30 a set of repo requirements from the remote, or ``None`` if stream clone
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
31 isn't supported.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
32 """
26466
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
33 repo = pullop.repo
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
34 remote = pullop.remote
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
35
26467
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
36 bundle2supported = False
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
37 if pullop.canusebundle2:
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
38 if 'v1' in pullop.remotebundle2caps.get('stream', []):
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
39 bundle2supported = True
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
40 # else
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
41 # Server doesn't support bundle2 stream clone or doesn't support
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
42 # the versions we support. Fall back and possibly allow legacy.
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
43
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
44 # Ensures legacy code path uses available bundle2.
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
45 if bailifbundle2supported and bundle2supported:
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
46 return False, None
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
47 # Ensures bundle2 doesn't try to do a stream clone if it isn't supported.
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
48 #elif not bailifbundle2supported and not bundle2supported:
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
49 # return False, None
ff2c89239d49 streamclone: teach canperformstreamclone to be bundle2 aware
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26466
diff changeset
50
26447
591088f7028a streamclone: add explicit check for empty local repo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26446
diff changeset
51 # Streaming clone only works on empty repositories.
591088f7028a streamclone: add explicit check for empty local repo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26446
diff changeset
52 if len(repo):
591088f7028a streamclone: add explicit check for empty local repo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26446
diff changeset
53 return False, None
591088f7028a streamclone: add explicit check for empty local repo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26446
diff changeset
54
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
55 # Streaming clone only works if all data is being requested.
26466
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
56 if pullop.heads:
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
57 return False, None
26445
f134fb33c906 streamclone: move streaming clone logic from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26444
diff changeset
58
26466
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
59 streamrequested = pullop.streamclonerequested
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
60
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
61 # If we don't have a preference, let the server decide for us. This
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
62 # likely only comes into play in LANs.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
63 if streamrequested is None:
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
64 # The server can advertise whether to prefer streaming clone.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
65 streamrequested = remote.capable('stream-preferred')
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
66
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
67 if not streamrequested:
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
68 return False, None
26445
f134fb33c906 streamclone: move streaming clone logic from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26444
diff changeset
69
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
70 # In order for stream clone to work, the client has to support all the
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
71 # requirements advertised by the server.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
72 #
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
73 # The server advertises its requirements via the "stream" and "streamreqs"
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
74 # capability. "stream" (a value-less capability) is advertised if and only
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
75 # if the only requirement is "revlogv1." Else, the "streamreqs" capability
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
76 # is advertised and contains a comma-delimited list of requirements.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
77 requirements = set()
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
78 if remote.capable('stream'):
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
79 requirements.add('revlogv1')
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
80 else:
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
81 streamreqs = remote.capable('streamreqs')
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
82 # This is weird and shouldn't happen with modern servers.
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
83 if not streamreqs:
32299
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
84 pullop.repo.ui.warn(_(
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
85 'warning: stream clone requested but server has them '
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
86 'disabled\n'))
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
87 return False, None
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
88
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
89 streamreqs = set(streamreqs.split(','))
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
90 # Server requires something we don't support. Bail.
32299
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
91 missingreqs = streamreqs - repo.supportedformats
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
92 if missingreqs:
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
93 pullop.repo.ui.warn(_(
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
94 'warning: stream clone requested but client is missing '
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
95 'requirements: %s\n') % ', '.join(sorted(missingreqs)))
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
96 pullop.repo.ui.warn(
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
97 _('(see https://www.mercurial-scm.org/wiki/MissingRequirement '
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
98 'for more information)\n'))
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
99 return False, None
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
100 requirements = streamreqs
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
101
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
102 return True, requirements
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
103
26462
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
104 def maybeperformlegacystreamclone(pullop):
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
105 """Possibly perform a legacy stream clone operation.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
106
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
107 Legacy stream clones are performed as part of pull but before all other
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
108 operations.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
109
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
110 A legacy stream clone will not be performed if a bundle2 stream clone is
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
111 supported.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
112 """
26466
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
113 supported, requirements = canperformstreamclone(pullop)
26458
362793295640 streamclone: refactor maybeperformstreamclone to take a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26447
diff changeset
114
26446
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
115 if not supported:
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
116 return
3ea10bb761ce streamclone: refactor code for deciding to stream clone
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
diff changeset
117
26466
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
118 repo = pullop.repo
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
119 remote = pullop.remote
3515db5aae05 streamclone: refactor canperformstreamclone to accept a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
120
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
121 # Save remote branchmap. We will use it later to speed up branchcache
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
122 # creation.
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
123 rbranchmap = None
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
124 if remote.capable('branchmap'):
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
125 rbranchmap = remote.branchmap()
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
126
26470
4b5647d9ee13 streamclone: move "streaming all changes" message location
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26469
diff changeset
127 repo.ui.status(_('streaming all changes\n'))
4b5647d9ee13 streamclone: move "streaming all changes" message location
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26469
diff changeset
128
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
129 fp = remote.stream_out()
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
130 l = fp.readline()
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
131 try:
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
132 resp = int(l)
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
133 except ValueError:
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
134 raise error.ResponseError(
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
135 _('unexpected response from remote server:'), l)
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
136 if resp == 1:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26470
diff changeset
137 raise error.Abort(_('operation forbidden by server'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
138 elif resp == 2:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26470
diff changeset
139 raise error.Abort(_('locking the remote repository failed'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
140 elif resp != 0:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26470
diff changeset
141 raise error.Abort(_('the server sent an unknown error code'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
142
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
143 l = fp.readline()
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
144 try:
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
145 filecount, bytecount = map(int, l.split(' ', 1))
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
146 except (ValueError, TypeError):
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
147 raise error.ResponseError(
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
148 _('unexpected response from remote server:'), l)
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
149
27850
49cfddbf54ba with: use context manager in maybeperformlegacystreamclone
Bryan O'Sullivan <bryano@fb.com>
parents: 27845
diff changeset
150 with repo.lock():
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
151 consumev1(repo, fp, filecount, bytecount)
26461
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
152
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
153 # new requirements = old non-format requirements +
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
154 # new format-related remote requirements
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
155 # requirements from the streamed-in repository
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
156 repo.requirements = requirements | (
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
157 repo.requirements - repo.supportedformats)
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
158 repo._applyopenerreqs()
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
159 repo._writerequirements()
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
160
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
161 if rbranchmap:
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
162 branchmap.replacecache(repo, rbranchmap)
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
163
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
164 repo.invalidate()
26445
f134fb33c906 streamclone: move streaming clone logic from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26444
diff changeset
165
32764
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
166 def allowservergeneration(repo):
26444
623743010133 streamclone: move _allowstream() from wireproto
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26443
diff changeset
167 """Whether streaming clones are allowed from the server."""
32764
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
168 if not repo.ui.configbool('server', 'uncompressed', True, untrusted=True):
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
169 return False
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
170
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
171 # The way stream clone works makes it impossible to hide secret changesets.
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
172 # So don't allow this by default.
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
173 secret = phases.hassecret(repo)
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
174 if secret:
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
175 return repo.ui.configbool('server', 'uncompressedallowsecret', False)
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
176
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
177 return True
26444
623743010133 streamclone: move _allowstream() from wireproto
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26443
diff changeset
178
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
179 # This is it's own function so extensions can override it.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
180 def _walkstreamfiles(repo):
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
181 return repo.store.walk()
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
182
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
183 def generatev1(repo):
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
184 """Emit content for version 1 of a streaming clone.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
185
26469
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
186 This returns a 3-tuple of (file count, byte size, data iterator).
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
187
26469
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
188 The data iterator consists of N entries for each file being transferred.
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
189 Each file entry starts as a line with the file name and integer size
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
190 delimited by a null byte.
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
191
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
192 The raw file data follows. Following the raw file data is the next file
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
193 entry, or EOF.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
194
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
195 When used on the wire protocol, an additional line indicating protocol
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
196 success will be prepended to the stream. This function is not responsible
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
197 for adding it.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
198
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
199 This function will obtain a repository lock to ensure a consistent view of
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
200 the store is captured. It therefore may raise LockError.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
201 """
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
202 entries = []
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
203 total_bytes = 0
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
204 # Get consistent snapshot of repo, lock during scan.
27845
7417e1c10253 with: use context manager in streamclone generatev1
Bryan O'Sullivan <bryano@fb.com>
parents: 27794
diff changeset
205 with repo.lock():
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
206 repo.ui.debug('scanning\n')
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
207 for name, ename, size in _walkstreamfiles(repo):
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
208 if size:
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
209 entries.append((name, size))
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
210 total_bytes += size
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
211
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
212 repo.ui.debug('%d files, %d bytes to transfer\n' %
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
213 (len(entries), total_bytes))
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
214
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
215 svfs = repo.svfs
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
216 oldaudit = svfs.mustaudit
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
217 debugflag = repo.ui.debugflag
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
218 svfs.mustaudit = False
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
219
26469
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
220 def emitrevlogdata():
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
221 try:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
222 for name, size in entries:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
223 if debugflag:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
224 repo.ui.debug('sending %s (%d bytes)\n' % (name, size))
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
225 # partially encode name over the wire for backwards compat
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
226 yield '%s\0%d\n' % (store.encodedir(name), size)
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
227 if size <= 65536:
28518
aa440c3d7c5d streamclone: fix error when store files grow while stream cloning
Mads Kiilerich <madski@unity3d.com>
parents: 27897
diff changeset
228 with svfs(name, 'rb') as fp:
aa440c3d7c5d streamclone: fix error when store files grow while stream cloning
Mads Kiilerich <madski@unity3d.com>
parents: 27897
diff changeset
229 yield fp.read(size)
26469
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
230 else:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
231 for chunk in util.filechunkiter(svfs(name), limit=size):
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
232 yield chunk
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
233 finally:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
234 svfs.mustaudit = oldaudit
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
235
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
236 return len(entries), total_bytes, emitrevlogdata()
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
237
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
238 def generatev1wireproto(repo):
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
239 """Emit content for version 1 of streaming clone suitable for the wire.
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
240
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
241 This is the data output from ``generatev1()`` with a header line
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
242 indicating file count and byte size.
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
243 """
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
244 filecount, bytecount, it = generatev1(repo)
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
245 yield '%d %d\n' % (filecount, bytecount)
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
246 for chunk in it:
fb743268510e streamclone: move payload header generation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26468
diff changeset
247 yield chunk
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
248
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
249 def generatebundlev1(repo, compression='UN'):
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
250 """Emit content for version 1 of a stream clone bundle.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
251
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
252 The first 4 bytes of the output ("HGS1") denote this as stream clone
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
253 bundle version 1.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
254
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
255 The next 2 bytes indicate the compression type. Only "UN" is currently
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
256 supported.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
257
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
258 The next 16 bytes are two 64-bit big endian unsigned integers indicating
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
259 file count and byte count, respectively.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
260
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
261 The next 2 bytes is a 16-bit big endian unsigned short declaring the length
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
262 of the requirements string, including a trailing \0. The following N bytes
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
263 are the requirements string, which is ASCII containing a comma-delimited
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
264 list of repo requirements that are needed to support the data.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
265
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
266 The remaining content is the output of ``generatev1()`` (which may be
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
267 compressed in the future).
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
268
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
269 Returns a tuple of (requirements, data generator).
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
270 """
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
271 if compression != 'UN':
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
272 raise ValueError('we do not support the compression argument yet')
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
273
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
274 requirements = repo.requirements & repo.supportedformats
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
275 requires = ','.join(sorted(requirements))
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
276
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
277 def gen():
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
278 yield 'HGS1'
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
279 yield compression
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
280
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
281 filecount, bytecount, it = generatev1(repo)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
282 repo.ui.status(_('writing %d bytes for %d files\n') %
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
283 (bytecount, filecount))
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
284
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
285 yield struct.pack('>QQ', filecount, bytecount)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
286 yield struct.pack('>H', len(requires) + 1)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
287 yield requires + '\0'
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
288
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
289 # This is where we'll add compression in the future.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
290 assert compression == 'UN'
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
291
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
292 seen = 0
28473
61d1a3cc6e1c streamclone: specify unit for ui.progress when handling data
Anton Shestakov <av6@dwimlabs.net>
parents: 27897
diff changeset
293 repo.ui.progress(_('bundle'), 0, total=bytecount, unit=_('bytes'))
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
294
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
295 for chunk in it:
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
296 seen += len(chunk)
28473
61d1a3cc6e1c streamclone: specify unit for ui.progress when handling data
Anton Shestakov <av6@dwimlabs.net>
parents: 27897
diff changeset
297 repo.ui.progress(_('bundle'), seen, total=bytecount,
61d1a3cc6e1c streamclone: specify unit for ui.progress when handling data
Anton Shestakov <av6@dwimlabs.net>
parents: 27897
diff changeset
298 unit=_('bytes'))
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
299 yield chunk
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
300
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
301 repo.ui.progress(_('bundle'), None)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
302
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
303 return requirements, gen()
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
304
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
305 def consumev1(repo, fp, filecount, bytecount):
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
306 """Apply the contents from version 1 of a streaming clone file handle.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
307
30342
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
308 This takes the output from "stream_out" and applies it to the specified
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
309 repository.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
310
30342
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
311 Like "stream_out," the status line added by the wire protocol is not
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
312 handled by this function.
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
313 """
27859
f55a5ace8e69 with: use context manager in streamclone consumev1
Bryan O'Sullivan <bryano@fb.com>
parents: 27850
diff changeset
314 with repo.lock():
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
315 repo.ui.status(_('%d files to transfer, %s of data\n') %
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
316 (filecount, util.bytecount(bytecount)))
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
317 handled_bytes = 0
28473
61d1a3cc6e1c streamclone: specify unit for ui.progress when handling data
Anton Shestakov <av6@dwimlabs.net>
parents: 27897
diff changeset
318 repo.ui.progress(_('clone'), 0, total=bytecount, unit=_('bytes'))
30995
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 30342
diff changeset
319 start = util.timer()
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
320
29923
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
321 # TODO: get rid of (potential) inconsistency
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
322 #
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
323 # If transaction is started and any @filecache property is
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
324 # changed at this point, it causes inconsistency between
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
325 # in-memory cached property and streamclone-ed file on the
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
326 # disk. Nested transaction prevents transaction scope "clone"
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
327 # below from writing in-memory changes out at the end of it,
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
328 # even though in-memory changes are discarded at the end of it
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
329 # regardless of transaction nesting.
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
330 #
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
331 # But transaction nesting can't be simply prohibited, because
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
332 # nesting occurs also in ordinary case (e.g. enabling
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
333 # clonebundles).
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
334
27870
ed9950ba091e with: use context manager for transaction in consumev1
Bryan O'Sullivan <bryano@fb.com>
parents: 27859
diff changeset
335 with repo.transaction('clone'):
27897
2fdbf22a1b63 streamclone: use backgroundfilecloser (issue4889)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27896
diff changeset
336 with repo.svfs.backgroundclosing(repo.ui, expectedcount=filecount):
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
337 for i in xrange(filecount):
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
338 # XXX doesn't support '\n' or '\r' in filenames
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
339 l = fp.readline()
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
340 try:
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
341 name, size = l.split('\0', 1)
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
342 size = int(size)
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
343 except (ValueError, TypeError):
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
344 raise error.ResponseError(
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
345 _('unexpected response from remote server:'), l)
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
346 if repo.ui.debugflag:
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
347 repo.ui.debug('adding %s (%s)\n' %
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
348 (name, util.bytecount(size)))
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
349 # for backwards compat, name was partially encoded
27897
2fdbf22a1b63 streamclone: use backgroundfilecloser (issue4889)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27896
diff changeset
350 path = store.decodedir(name)
2fdbf22a1b63 streamclone: use backgroundfilecloser (issue4889)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27896
diff changeset
351 with repo.svfs(path, 'w', backgroundclose=True) as ofp:
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
352 for chunk in util.filechunkiter(fp, limit=size):
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
353 handled_bytes += len(chunk)
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
354 repo.ui.progress(_('clone'), handled_bytes,
28473
61d1a3cc6e1c streamclone: specify unit for ui.progress when handling data
Anton Shestakov <av6@dwimlabs.net>
parents: 27897
diff changeset
355 total=bytecount, unit=_('bytes'))
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
356 ofp.write(chunk)
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
357
29923
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
358 # force @filecache properties to be reloaded from
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
359 # streamclone-ed file at next access
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
360 repo.invalidate(clearfilecache=True)
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
361
30995
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 30342
diff changeset
362 elapsed = util.timer() - start
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
363 if elapsed <= 0:
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
364 elapsed = 0.001
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
365 repo.ui.progress(_('clone'), None)
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
366 repo.ui.status(_('transferred %s in %.1f seconds (%s/sec)\n') %
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
367 (util.bytecount(bytecount), elapsed,
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
368 util.bytecount(bytecount / elapsed)))
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
369
27882
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
370 def readbundle1header(fp):
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
371 compression = fp.read(2)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
372 if compression != 'UN':
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
373 raise error.Abort(_('only uncompressed stream clone bundles are '
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
374 'supported; got %s') % compression)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
375
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
376 filecount, bytecount = struct.unpack('>QQ', fp.read(16))
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
377 requireslen = struct.unpack('>H', fp.read(2))[0]
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
378 requires = fp.read(requireslen)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
379
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
380 if not requires.endswith('\0'):
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
381 raise error.Abort(_('malformed stream clone bundle: '
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
382 'requirements not properly encoded'))
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
383
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
384 requirements = set(requires.rstrip('\0').split(','))
27882
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
385
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
386 return filecount, bytecount, requirements
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
387
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
388 def applybundlev1(repo, fp):
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
389 """Apply the content from a stream clone bundle version 1.
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
390
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
391 We assume the 4 byte header has been read and validated and the file handle
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
392 is at the 2 byte compression identifier.
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
393 """
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
394 if len(repo):
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
395 raise error.Abort(_('cannot apply stream clone bundle on non-empty '
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
396 'repo'))
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
397
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
398 filecount, bytecount, requirements = readbundle1header(fp)
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
399 missingreqs = requirements - repo.supportedformats
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
400 if missingreqs:
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
401 raise error.Abort(_('unable to apply stream clone: '
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
402 'unsupported format: %s') %
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
403 ', '.join(sorted(missingreqs)))
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
404
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
405 consumev1(repo, fp, filecount, bytecount)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
406
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
407 class streamcloneapplier(object):
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
408 """Class to manage applying streaming clone bundles.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
409
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
410 We need to wrap ``applybundlev1()`` in a dedicated type to enable bundle
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
411 readers to perform bundle type-specific functionality.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
412 """
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
413 def __init__(self, fh):
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
414 self._fh = fh
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
415
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
416 def apply(self, repo):
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
417 return applybundlev1(repo, self._fh)