annotate tests/fakedirstatewritetime.py @ 46230:1fcab88ab85c

downgrade: if a compression is removed, consider that too For compression format variant, the result of `fromrepo()` and `fromconfig()` is not a boolean and we have to actually equate those to find change. Differential Revision: https://phab.mercurial-scm.org/D9693
author Pulkit Goyal <7895pulkit@gmail.com>
date Fri, 08 Jan 2021 23:06:38 +0530
parents 89a2afe31e82
children 8b7e47802deb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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22 rustext.__name__ # force actual import (see hgdemandimport)
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23 except ImportError:
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24 rustext = None
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25
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26 configtable = {}
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27 configitem = registrar.configitem(configtable)
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28
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29 configitem(
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30 b'fakedirstatewritetime',
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31 b'fakenow',
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32 default=None,
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33 )
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34
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35 parsers = policy.importmod('parsers')
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36 rustmod = policy.importrust('parsers')
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37
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39 def pack_dirstate(fakenow, orig, dmap, copymap, pl, now):
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40 # execute what original parsers.pack_dirstate should do actually
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41 # for consistency
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42 actualnow = int(now)
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43 for f, e in dmap.items():
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44 if e[0] == 'n' and e[3] == actualnow:
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45 e = parsers.dirstatetuple(e[0], e[1], e[2], -1)
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46 dmap[f] = e
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47
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48 return orig(dmap, copymap, pl, fakenow)
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49
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50
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51 def fakewrite(ui, func):
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52 # fake "now" of 'pack_dirstate' only if it is invoked while 'func'
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53
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54 fakenow = ui.config(b'fakedirstatewritetime', b'fakenow')
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55 if not fakenow:
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56 # Execute original one, if fakenow isn't configured. This is
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57 # useful to prevent subrepos from executing replaced one,
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58 # because replacing 'parsers.pack_dirstate' is also effective
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59 # in subrepos.
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60 return func()
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61
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62 # parsing 'fakenow' in YYYYmmddHHMM format makes comparison between
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63 # 'fakenow' value and 'touch -t YYYYmmddHHMM' argument easy
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64 fakenow = dateutil.parsedate(fakenow, [b'%Y%m%d%H%M'])[0]
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65
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66 if rustmod is not None:
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67 # The Rust implementation does not use public parse/pack dirstate
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68 # to prevent conversion round-trips
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69 orig_dirstatemap_write = dirstate.dirstatemap.write
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70 wrapper = lambda self, st, now: orig_dirstatemap_write(
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71 self, st, fakenow
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72 )
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73 dirstate.dirstatemap.write = wrapper
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74
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75 orig_dirstate_getfsnow = dirstate._getfsnow
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76 wrapper = lambda *args: pack_dirstate(fakenow, orig_pack_dirstate, *args)
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77
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78 orig_module = parsers
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79 orig_pack_dirstate = parsers.pack_dirstate
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80
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81 orig_module.pack_dirstate = wrapper
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82 dirstate._getfsnow = lambda *args: fakenow
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83 try:
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84 return func()
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85 finally:
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86 orig_module.pack_dirstate = orig_pack_dirstate
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87 dirstate._getfsnow = orig_dirstate_getfsnow
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88 if rustmod is not None:
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89 dirstate.dirstatemap.write = orig_dirstatemap_write
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90
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91
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92 def _poststatusfixup(orig, workingctx, status, fixup):
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93 ui = workingctx.repo().ui
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94 return fakewrite(ui, lambda: orig(workingctx, status, fixup))
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95
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96
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97 def markcommitted(orig, committablectx, node):
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98 ui = committablectx.repo().ui
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99 return fakewrite(ui, lambda: orig(committablectx, node))
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100
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101
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102 def extsetup(ui):
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103 extensions.wrapfunction(
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104 context.workingctx, '_poststatusfixup', _poststatusfixup
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105 )
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106 extensions.wrapfunction(context.workingctx, 'markcommitted', markcommitted)