annotate hgext/narrow/narrowdirstate.py @ 36786:ed46d48453e8

py3: drop b'' from generate-working-copy-states.py output I could make everything bytes, but decoding filename seemed easier and we don't have to worry about non-ascii filenames here.
author Yuya Nishihara <yuya@tcha.org>
date Sun, 04 Mar 2018 18:47:07 -0500
parents deb851914fd7
children 1cba497491be
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1 # narrowdirstate.py - extensions to mercurial dirstate to support narrow clones
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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.i18n import _
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11 from mercurial import (
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12 dirstate,
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13 error,
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14 extensions,
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15 match as matchmod,
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16 narrowspec,
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17 util as hgutil,
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18 )
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19
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20 def setup(repo):
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21 """Add narrow spec dirstate ignore, block changes outside narrow spec."""
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22
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23 def walk(orig, self, match, subrepos, unknown, ignored, full=True,
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24 narrowonly=True):
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25 if narrowonly:
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26 # hack to not exclude explicitly-specified paths so that they can
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27 # be warned later on e.g. dirstate.add()
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28 em = matchmod.exact(match._root, match._cwd, match.files())
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29 nm = matchmod.unionmatcher([repo.narrowmatch(), em])
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30 match = matchmod.intersectmatchers(match, nm)
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31 return orig(self, match, subrepos, unknown, ignored, full)
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32
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33 extensions.wrapfunction(dirstate.dirstate, 'walk', walk)
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34
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35 # Prevent adding files that are outside the sparse checkout
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36 editfuncs = ['normal', 'add', 'normallookup', 'copy', 'remove', 'merge']
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37 for func in editfuncs:
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38 def _wrapper(orig, self, *args):
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39 dirstate = repo.dirstate
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40 narrowmatch = repo.narrowmatch()
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41 for f in args:
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42 if f is not None and not narrowmatch(f) and f not in dirstate:
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43 raise error.Abort(_("cannot track '%s' - it is outside " +
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44 "the narrow clone") % f)
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45 return orig(self, *args)
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46 extensions.wrapfunction(dirstate.dirstate, func, _wrapper)
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47
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48 def filterrebuild(orig, self, parent, allfiles, changedfiles=None):
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49 if changedfiles is None:
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50 # Rebuilding entire dirstate, let's filter allfiles to match the
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51 # narrowspec.
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52 allfiles = [f for f in allfiles if repo.narrowmatch()(f)]
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53 orig(self, parent, allfiles, changedfiles)
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54
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55 extensions.wrapfunction(dirstate.dirstate, 'rebuild', filterrebuild)
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56
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57 def _narrowbackupname(backupname):
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58 assert 'dirstate' in backupname
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59 return backupname.replace('dirstate', narrowspec.FILENAME)
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60
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61 def restorebackup(orig, self, tr, backupname):
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62 self._opener.rename(_narrowbackupname(backupname), narrowspec.FILENAME,
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63 checkambig=True)
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64 orig(self, tr, backupname)
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65
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66 extensions.wrapfunction(dirstate.dirstate, 'restorebackup', restorebackup)
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67
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68 def savebackup(orig, self, tr, backupname):
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69 orig(self, tr, backupname)
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70
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71 narrowbackupname = _narrowbackupname(backupname)
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72 self._opener.tryunlink(narrowbackupname)
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73 hgutil.copyfile(self._opener.join(narrowspec.FILENAME),
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74 self._opener.join(narrowbackupname), hardlink=True)
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75
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76 extensions.wrapfunction(dirstate.dirstate, 'savebackup', savebackup)
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77
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78 def clearbackup(orig, self, tr, backupname):
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79 orig(self, tr, backupname)
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80 self._opener.unlink(_narrowbackupname(backupname))
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81
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82 extensions.wrapfunction(dirstate.dirstate, 'clearbackup', clearbackup)