Mercurial > hg
annotate tests/fakedirstatewritetime.py @ 42415:c767e655ffda
narrow: use narrow_widen wireproto command to widen in case of ellipses
Few releases ago, we introduce narrow_widen wireproto command to be used to widen
narrow repositories. Before this patch, that was used in non-ellipses cases
only. In ellipses cases, we still do exchange.pull() which can pull more data
than required.
After this patch, the client will first check whether server supports doing
ellipses widening using wireproto command or not by checking server's wireproto
capability. If the server is upto date and support latest ellipses capability,
we call the wireproto command. Otherwise we fallback to exchange.pull() like
before.
The compat code make sure that things works even if one of the client or server
is old. The initial version of this patch does not had this compat code. It's
added to help Google release things smoothly internally. I plan to drop the
compat code before the upcoming major release.
Due to change to wireproto command, the code looks a bit dirty, next patches
will clean that up.
Differential Revision: https://phab.mercurial-scm.org/D6436
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Wed, 22 May 2019 02:59:48 +0530 |
parents | 9c6c0f736e1d |
children | 760a7851e9ba |
rev | line source |
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1 # extension to emulate invoking 'dirstate.write()' at the time |
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2 # specified by '[fakedirstatewritetime] fakenow', only when |
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3 # 'dirstate.write()' is invoked via functions below: |
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4 # |
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5 # - 'workingctx._poststatusfixup()' (= 'repo.status()') |
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6 # - 'committablectx.markcommitted()' |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 from mercurial import ( |
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11 context, |
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12 dirstate, |
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13 extensions, |
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14 policy, |
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15 registrar, |
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16 ) |
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17 from mercurial.utils import dateutil |
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18 |
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19 try: |
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20 from mercurial import rustext |
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21 rustext.__name__ # force actual import (see hgdemandimport) |
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22 except ImportError: |
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23 rustext = None |
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24 |
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25 configtable = {} |
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26 configitem = registrar.configitem(configtable) |
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27 |
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28 configitem(b'fakedirstatewritetime', b'fakenow', |
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29 default=None, |
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30 ) |
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31 |
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32 parsers = policy.importmod(r'parsers') |
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33 |
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34 def pack_dirstate(fakenow, orig, dmap, copymap, pl, now): |
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35 # execute what original parsers.pack_dirstate should do actually |
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36 # for consistency |
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37 actualnow = int(now) |
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38 for f, e in dmap.items(): |
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39 if e[0] == 'n' and e[3] == actualnow: |
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40 e = parsers.dirstatetuple(e[0], e[1], e[2], -1) |
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41 dmap[f] = e |
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42 |
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43 return orig(dmap, copymap, pl, fakenow) |
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44 |
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45 def fakewrite(ui, func): |
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46 # fake "now" of 'pack_dirstate' only if it is invoked while 'func' |
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47 |
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48 fakenow = ui.config(b'fakedirstatewritetime', b'fakenow') |
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49 if not fakenow: |
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50 # Execute original one, if fakenow isn't configured. This is |
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51 # useful to prevent subrepos from executing replaced one, |
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52 # because replacing 'parsers.pack_dirstate' is also effective |
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53 # in subrepos. |
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54 return func() |
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55 |
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56 # parsing 'fakenow' in YYYYmmddHHMM format makes comparison between |
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57 # 'fakenow' value and 'touch -t YYYYmmddHHMM' argument easy |
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58 fakenow = dateutil.parsedate(fakenow, [b'%Y%m%d%H%M'])[0] |
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59 |
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60 if rustext is not None: |
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61 orig_module = rustext.dirstate |
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62 orig_pack_dirstate = rustext.dirstate.pack_dirstate |
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63 else: |
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64 orig_module = parsers |
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65 orig_pack_dirstate = parsers.pack_dirstate |
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66 |
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67 orig_dirstate_getfsnow = dirstate._getfsnow |
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68 wrapper = lambda *args: pack_dirstate(fakenow, orig_pack_dirstate, *args) |
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69 |
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70 orig_module.pack_dirstate = wrapper |
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71 dirstate._getfsnow = lambda *args: fakenow |
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72 try: |
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73 return func() |
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74 finally: |
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75 orig_module.pack_dirstate = orig_pack_dirstate |
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76 dirstate._getfsnow = orig_dirstate_getfsnow |
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77 |
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78 def _poststatusfixup(orig, workingctx, status, fixup): |
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79 ui = workingctx.repo().ui |
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80 return fakewrite(ui, lambda : orig(workingctx, status, fixup)) |
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81 |
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82 def markcommitted(orig, committablectx, node): |
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83 ui = committablectx.repo().ui |
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84 return fakewrite(ui, lambda : orig(committablectx, node)) |
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85 |
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86 def extsetup(ui): |
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87 extensions.wrapfunction(context.workingctx, '_poststatusfixup', |
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88 _poststatusfixup) |
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89 extensions.wrapfunction(context.workingctx, 'markcommitted', |
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90 markcommitted) |