Mercurial > hg
annotate hgext/narrow/__init__.py @ 36079:a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Adjustments:
* renamed src to hgext/narrow
* marked extension experimental
* added correct copyright header where it was missing
* updated hgrc extension enable line in library.sh
* renamed library.sh to narrow-library.sh
* dropped all files from repo root as they're not interesting
* dropped test-pyflakes.t, test-check-code.t and test-check-py3-compat.t
* renamed remaining tests to all be test-narrow-* when they didn't already
* fixed test-narrow-expanddirstate.t to refer to narrow and not narrowhg
* fixed tests that wanted `update -C .` instead of `merge --abort`
* corrected a two-space indent in narrowspec.py
* added a missing _() in narrowcommands.py
* fixed imports to pass the import checker
* narrow only adds its --include and --exclude to clone if sparse isn't
enabled to avoid breaking test-duplicateoptions.py. This is a kludge,
and we'll need to come up with a better solution in the future.
These were more or less the minimum to import something that would
pass tests and not create a bunch of files we'll never use.
Changes I intend to make as followups:
* rework the test-narrow-*-tree.t tests to use the new testcases
functionality in run-tests.py
* remove lots of monkeypatches of core things
Differential Revision: https://phab.mercurial-scm.org/D1974
author | Augie Fackler <augie@google.com> |
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date | Mon, 29 Jan 2018 16:19:33 -0500 |
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children | 9dc28d8ea61e |
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1 # __init__.py - narrowhg extension |
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2 # |
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3 # Copyright 2017 Google, Inc. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 '''create clones which fetch history data for subset of files (EXPERIMENTAL)''' |
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8 |
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9 from __future__ import absolute_import |
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10 |
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11 from mercurial import __version__ |
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12 if __version__.version < '3.7': |
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13 raise ImportError( |
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14 'narrowhg requires mercurial 3.7 or newer') |
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15 |
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16 try: |
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17 from .__versionnum__ import version |
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18 __version__ = version |
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19 except ImportError: |
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20 pass |
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21 |
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22 from mercurial import ( |
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23 extensions, |
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24 hg, |
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25 localrepo, |
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26 registrar, |
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27 util, |
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28 verify as verifymod, |
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29 ) |
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30 |
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31 from . import ( |
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32 narrowbundle2, |
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33 narrowchangegroup, |
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34 narrowcommands, |
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35 narrowcopies, |
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36 narrowdirstate, |
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37 narrowmerge, |
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38 narrowpatch, |
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39 narrowrepo, |
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40 narrowrevlog, |
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41 narrowtemplates, |
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42 narrowwirepeer, |
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43 ) |
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44 |
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45 configtable = {} |
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46 configitem = registrar.configitem(configtable) |
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47 # Narrowhg *has* support for serving ellipsis nodes (which are used at |
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48 # least by Google's internal server), but that support is pretty |
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49 # fragile and has a lot of problems on real-world repositories that |
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50 # have complex graph topologies. This could probably be corrected, but |
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51 # absent someone needing the full support for ellipsis nodes in |
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52 # repositories with merges, it's unlikely this work will get done. As |
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53 # of this writining in late 2017, all repositories large enough for |
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54 # ellipsis nodes to be a hard requirement also enforce strictly linear |
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55 # history for other scaling reasons. |
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56 configitem('experimental', 'narrowservebrokenellipses', |
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57 default=False, |
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58 alias=[('narrow', 'serveellipses')], |
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59 ) |
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60 |
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61 # Export the commands table for Mercurial to see. |
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62 cmdtable = narrowcommands.table |
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63 |
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64 localrepo.localrepository._basesupported.add(narrowrepo.requirement) |
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65 |
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66 def uisetup(ui): |
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67 """Wraps user-facing mercurial commands with narrow-aware versions.""" |
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68 narrowrevlog.setup() |
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69 narrowbundle2.setup() |
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70 narrowmerge.setup() |
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71 narrowtemplates.setup() |
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72 narrowcommands.setup() |
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73 narrowchangegroup.setup() |
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74 narrowwirepeer.uisetup() |
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75 |
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76 def reposetup(ui, repo): |
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77 """Wraps local repositories with narrow repo support.""" |
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78 if not isinstance(repo, localrepo.localrepository): |
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79 return |
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80 |
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81 if narrowrepo.requirement in repo.requirements: |
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82 narrowrepo.wraprepo(repo, True) |
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83 narrowcopies.setup(repo) |
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84 narrowdirstate.setup(repo) |
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85 narrowpatch.setup(repo) |
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86 narrowwirepeer.reposetup(repo) |
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87 |
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88 def _narrowvalidpath(orig, repo, path): |
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89 matcher = getattr(repo, 'narrowmatch', None) |
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90 if matcher is None: |
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91 return orig(repo, path) |
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92 matcher = matcher() |
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93 if matcher.visitdir(path) or matcher(path): |
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94 return orig(repo, path) |
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95 return False |
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96 |
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97 def _verifierinit(orig, self, repo, matcher=None): |
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98 # The verifier's matcher argument was desgined for narrowhg, so it should |
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99 # be None from core. If another extension passes a matcher (unlikely), |
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100 # we'll have to fail until matchers can be composed more easily. |
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101 assert matcher is None |
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102 matcher = getattr(repo, 'narrowmatch', lambda: None)() |
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103 orig(self, repo, matcher) |
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104 |
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105 def extsetup(ui): |
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106 if util.safehasattr(verifymod, '_validpath'): |
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Augie Fackler <augie@google.com>
parents:
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changeset
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107 extensions.wrapfunction(verifymod, '_validpath', _narrowvalidpath) |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
108 else: |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
diff
changeset
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109 extensions.wrapfunction(verifymod.verifier, '__init__', _verifierinit) |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
diff
changeset
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110 extensions.wrapfunction(hg, 'postshare', narrowrepo.wrappostshare) |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
diff
changeset
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111 extensions.wrapfunction(hg, 'copystore', narrowrepo.unsharenarrowspec) |