Mercurial > hg
annotate tests/bruterebase.py @ 39641:aa7e312375cf
wireprotov2: let clients drive delta behavior
Previously, the "manifestdata" and "filedata" commands assumed the
receiver had all parent revisions for requested nodes. Unless the
revision had no parents, they emitted a delta instead of a fulltext.
This strategy isn't appropriate for shallow clones and for clients
that only want to access fulltext revision data for a single node
without fetching their parent revisions.
This commit adds an "haveparents" argument to the "manifestdata"
and "filedata" commands that controls delta generation behavior.
Unless "haveparents" is set, the server assumes that the client
doesn't have parent revisions unless they were previously sent
as part of the current group of revisions.
This change allows the fulltext revision data of any individual
revision to be obtained. This will facilitate shallow clones
and other data retrieval strategies that don't require all previous
revisions of an entity to be fetched.
Differential Revision: https://phab.mercurial-scm.org/D4492
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 30 Aug 2018 14:55:34 -0700 |
parents | 3b98ffd2dde3 |
children | 337d6e0fd9c9 |
rev | line source |
---|---|
33708 | 1 # bruterebase.py - brute force rebase testing |
2 # | |
3 # Copyright 2017 Facebook, Inc. | |
4 # | |
5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 | |
8 from __future__ import absolute_import | |
9 | |
10 from mercurial import ( | |
11 error, | |
12 registrar, | |
13 revsetlang, | |
14 ) | |
15 | |
16 from hgext import rebase | |
17 | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
18 try: |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
19 xrange |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
20 except NameError: |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
21 xrange = range |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
22 |
33708 | 23 cmdtable = {} |
24 command = registrar.command(cmdtable) | |
25 | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
26 @command(b'debugbruterebase') |
33708 | 27 def debugbruterebase(ui, repo, source, dest): |
28 """for every non-empty subset of source, run rebase -r subset -d dest | |
29 | |
30 Print one line summary for each subset. Assume obsstore is enabled. | |
31 """ | |
32 srevs = list(repo.revs(source)) | |
33 | |
34 with repo.wlock(), repo.lock(): | |
35 repolen = len(repo) | |
36 cl = repo.changelog | |
37 | |
38 def getdesc(rev): | |
39 result = cl.changelogrevision(rev).description | |
40 if rev >= repolen: | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
41 result += b"'" |
33708 | 42 return result |
43 | |
44 for i in xrange(1, 2 ** len(srevs)): | |
45 subset = [rev for j, rev in enumerate(srevs) if i & (1 << j) != 0] | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
46 spec = revsetlang.formatspec(b'%ld', subset) |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
47 tr = repo.transaction(b'rebase') |
33708 | 48 tr.report = lambda x: 0 # hide "transaction abort" |
49 | |
50 ui.pushbuffer() | |
51 try: | |
52 rebase.rebase(ui, repo, dest=dest, rev=[spec]) | |
53 except error.Abort as ex: | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
54 summary = b'ABORT: %s' % ex |
33708 | 55 except Exception as ex: |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
56 summary = b'CRASH: %s' % ex |
33708 | 57 else: |
58 # short summary about new nodes | |
59 cl = repo.changelog | |
60 descs = [] | |
61 for rev in xrange(repolen, len(repo)): | |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
62 desc = b'%s:' % getdesc(rev) |
33708 | 63 for prev in cl.parentrevs(rev): |
64 if prev > -1: | |
65 desc += getdesc(prev) | |
66 descs.append(desc) | |
67 descs.sort() | |
36479
3b98ffd2dde3
py3: add a missing b'' in tests/bruterebase.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
34204
diff
changeset
|
68 summary = b' '.join(descs) |
33708 | 69 ui.popbuffer() |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
70 repo.vfs.tryunlink(b'rebasestate') |
33708 | 71 |
34204
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
72 subsetdesc = b''.join(getdesc(rev) for rev in subset) |
bab82c43c065
bruterebase: port to python 3
Augie Fackler <raf@durin42.com>
parents:
33708
diff
changeset
|
73 ui.write((b'%s: %s\n') % (subsetdesc.rjust(len(srevs)), summary)) |
33708 | 74 tr.abort() |