Mercurial > hg
annotate hgext/narrow/narrowrepo.py @ 36160:9fd8c2a3db5a
narrowspec: move module into core
Having support for parsing the narrow specification in core is
necessary for moving many other parts of narrow to core.
We do still want to harmonize the narrow spec with the sparse
spec. And the format needs to be documented. But this shouldn't
hold up the code moving to core.
Differential Revision: https://phab.mercurial-scm.org/D2201
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 12 Feb 2018 16:21:34 -0800 |
parents | 0fe7e39dc683 |
children | 3f0af89e008d |
rev | line source |
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1 # narrowrepo.py - repository which supports narrow revlogs, lazy loading |
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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 |
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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 bundlerepo, |
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12 hg, |
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13 localrepo, |
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14 match as matchmod, |
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15 narrowspec, |
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16 scmutil, |
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17 ) |
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18 |
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19 from . import ( |
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20 narrowrevlog, |
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21 ) |
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22 |
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23 # When narrowing is finalized and no longer subject to format changes, |
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24 # we should move this to just "narrow" or similar. |
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25 REQUIREMENT = 'narrowhg-experimental' |
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26 |
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27 def wrappostshare(orig, sourcerepo, destrepo, **kwargs): |
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28 orig(sourcerepo, destrepo, **kwargs) |
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29 if REQUIREMENT in sourcerepo.requirements: |
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30 with destrepo.wlock(): |
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31 with destrepo.vfs('shared', 'a') as fp: |
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32 fp.write(narrowspec.FILENAME + '\n') |
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33 |
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34 def unsharenarrowspec(orig, ui, repo, repopath): |
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35 if (REQUIREMENT in repo.requirements |
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36 and repo.path == repopath and repo.shared()): |
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37 srcrepo = hg.sharedreposource(repo) |
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38 with srcrepo.vfs(narrowspec.FILENAME) as f: |
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39 spec = f.read() |
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40 with repo.vfs(narrowspec.FILENAME, 'w') as f: |
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41 f.write(spec) |
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42 return orig(ui, repo, repopath) |
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43 |
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44 def wraprepo(repo, opts_narrow): |
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45 """Enables narrow clone functionality on a single local repository.""" |
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46 |
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47 cacheprop = localrepo.storecache |
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48 if isinstance(repo, bundlerepo.bundlerepository): |
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49 # We have to use a different caching property decorator for |
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50 # bundlerepo because storecache blows up in strange ways on a |
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51 # bundlerepo. Fortunately, there's no risk of data changing in |
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52 # a bundlerepo. |
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53 cacheprop = lambda name: localrepo.unfilteredpropertycache |
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54 |
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55 class narrowrepository(repo.__class__): |
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56 |
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57 def _constructmanifest(self): |
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58 manifest = super(narrowrepository, self)._constructmanifest() |
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59 narrowrevlog.makenarrowmanifestrevlog(manifest, repo) |
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60 return manifest |
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61 |
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62 @cacheprop('00manifest.i') |
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63 def manifestlog(self): |
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64 mfl = super(narrowrepository, self).manifestlog |
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65 narrowrevlog.makenarrowmanifestlog(mfl, self) |
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66 return mfl |
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67 |
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68 def file(self, f): |
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69 fl = super(narrowrepository, self).file(f) |
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70 narrowrevlog.makenarrowfilelog(fl, self.narrowmatch()) |
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71 return fl |
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72 |
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73 @localrepo.repofilecache(narrowspec.FILENAME) |
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74 def narrowpats(self): |
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75 """matcher patterns for this repository's narrowspec |
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76 |
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77 A tuple of (includes, excludes). |
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78 """ |
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79 return narrowspec.load(self) |
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80 |
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81 @localrepo.repofilecache(narrowspec.FILENAME) |
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82 def _narrowmatch(self): |
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83 include, exclude = self.narrowpats |
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84 if not opts_narrow and not include and not exclude: |
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85 return matchmod.always(self.root, '') |
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86 return narrowspec.match(self.root, include=include, exclude=exclude) |
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87 |
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88 # TODO(martinvonz): make this property-like instead? |
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89 def narrowmatch(self): |
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90 return self._narrowmatch |
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91 |
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92 def setnarrowpats(self, newincludes, newexcludes): |
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93 narrowspec.save(self, newincludes, newexcludes) |
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94 self.invalidate(clearfilecache=True) |
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95 |
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96 # I'm not sure this is the right place to do this filter. |
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97 # context._manifestmatches() would probably be better, or perhaps |
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98 # move it to a later place, in case some of the callers do want to know |
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99 # which directories changed. This seems to work for now, though. |
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100 def status(self, *args, **kwargs): |
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101 s = super(narrowrepository, self).status(*args, **kwargs) |
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102 narrowmatch = self.narrowmatch() |
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103 modified = list(filter(narrowmatch, s.modified)) |
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104 added = list(filter(narrowmatch, s.added)) |
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105 removed = list(filter(narrowmatch, s.removed)) |
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106 deleted = list(filter(narrowmatch, s.deleted)) |
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107 unknown = list(filter(narrowmatch, s.unknown)) |
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108 ignored = list(filter(narrowmatch, s.ignored)) |
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Augie Fackler <augie@google.com>
parents:
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109 clean = list(filter(narrowmatch, s.clean)) |
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a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
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110 return scmutil.status(modified, added, removed, deleted, unknown, |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
diff
changeset
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111 ignored, clean) |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
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changeset
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112 |
a2a6e724d61a
narrow: import experimental extension from narrowhg revision cb51d673e9c5
Augie Fackler <augie@google.com>
parents:
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113 repo.__class__ = narrowrepository |