Mercurial > hg
annotate hgext/narrow/narrowrepo.py @ 36821:0c7350656f93
xdiff: add comments for fields in xdfile_t
This makes the related code easier to understand.
Differential Revision: https://phab.mercurial-scm.org/D2685
author | Jun Wu <quark@fb.com> |
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date | Sun, 04 Mar 2018 11:30:16 -0800 |
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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 changegroup, |
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13 hg, |
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14 localrepo, |
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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 def wrappostshare(orig, sourcerepo, destrepo, **kwargs): |
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24 orig(sourcerepo, destrepo, **kwargs) |
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25 if changegroup.NARROW_REQUIREMENT in sourcerepo.requirements: |
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26 with destrepo.wlock(): |
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27 with destrepo.vfs('shared', 'a') as fp: |
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28 fp.write(narrowspec.FILENAME + '\n') |
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29 |
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30 def unsharenarrowspec(orig, ui, repo, repopath): |
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31 if (changegroup.NARROW_REQUIREMENT in repo.requirements |
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32 and repo.path == repopath and repo.shared()): |
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33 srcrepo = hg.sharedreposource(repo) |
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34 with srcrepo.vfs(narrowspec.FILENAME) as f: |
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35 spec = f.read() |
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36 with repo.vfs(narrowspec.FILENAME, 'w') as f: |
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37 f.write(spec) |
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38 return orig(ui, repo, repopath) |
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39 |
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40 def wraprepo(repo): |
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41 """Enables narrow clone functionality on a single local repository.""" |
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42 |
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43 cacheprop = localrepo.storecache |
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44 if isinstance(repo, bundlerepo.bundlerepository): |
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45 # We have to use a different caching property decorator for |
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46 # bundlerepo because storecache blows up in strange ways on a |
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47 # bundlerepo. Fortunately, there's no risk of data changing in |
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48 # a bundlerepo. |
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49 cacheprop = lambda name: localrepo.unfilteredpropertycache |
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50 |
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51 class narrowrepository(repo.__class__): |
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52 |
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53 def _constructmanifest(self): |
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54 manifest = super(narrowrepository, self)._constructmanifest() |
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55 narrowrevlog.makenarrowmanifestrevlog(manifest, repo) |
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56 return manifest |
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57 |
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58 @cacheprop('00manifest.i') |
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59 def manifestlog(self): |
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60 mfl = super(narrowrepository, self).manifestlog |
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61 narrowrevlog.makenarrowmanifestlog(mfl, self) |
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62 return mfl |
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63 |
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64 def file(self, f): |
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65 fl = super(narrowrepository, self).file(f) |
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66 narrowrevlog.makenarrowfilelog(fl, self.narrowmatch()) |
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67 return fl |
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68 |
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69 # I'm not sure this is the right place to do this filter. |
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70 # context._manifestmatches() would probably be better, or perhaps |
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71 # move it to a later place, in case some of the callers do want to know |
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72 # which directories changed. This seems to work for now, though. |
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73 def status(self, *args, **kwargs): |
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74 s = super(narrowrepository, self).status(*args, **kwargs) |
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75 narrowmatch = self.narrowmatch() |
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76 modified = list(filter(narrowmatch, s.modified)) |
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77 added = list(filter(narrowmatch, s.added)) |
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78 removed = list(filter(narrowmatch, s.removed)) |
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79 deleted = list(filter(narrowmatch, s.deleted)) |
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80 unknown = list(filter(narrowmatch, s.unknown)) |
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81 ignored = list(filter(narrowmatch, s.ignored)) |
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82 clean = list(filter(narrowmatch, s.clean)) |
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83 return scmutil.status(modified, added, removed, deleted, unknown, |
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84 ignored, clean) |
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85 |
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86 repo.__class__ = narrowrepository |