Mercurial > hg
annotate hgext/narrow/narrowmerge.py @ 36729:389b950f5190
py3: use startswith() instead of slicing to detect leading whitespace
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 04 Mar 2018 15:24:45 -0500 |
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1 # narrowmerge.py - extensions to mercurial merge module 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 copies, |
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13 error, |
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14 extensions, |
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15 merge, |
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16 ) |
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17 |
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18 def setup(): |
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19 def _manifestmerge(orig, repo, wctx, p2, pa, branchmerge, *args, **kwargs): |
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20 """Filter updates to only lay out files that match the narrow spec.""" |
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21 actions, diverge, renamedelete = orig( |
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22 repo, wctx, p2, pa, branchmerge, *args, **kwargs) |
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23 |
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24 narrowmatch = repo.narrowmatch() |
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25 if narrowmatch.always(): |
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26 return actions, diverge, renamedelete |
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27 |
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28 nooptypes = set(['k']) # TODO: handle with nonconflicttypes |
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29 nonconflicttypes = set('a am c cm f g r e'.split()) |
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30 # We mutate the items in the dict during iteration, so iterate |
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31 # over a copy. |
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32 for f, action in list(actions.items()): |
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33 if narrowmatch(f): |
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34 pass |
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35 elif not branchmerge: |
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36 del actions[f] # just updating, ignore changes outside clone |
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37 elif action[0] in nooptypes: |
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38 del actions[f] # merge does not affect file |
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39 elif action[0] in nonconflicttypes: |
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40 raise error.Abort(_('merge affects file \'%s\' outside narrow, ' |
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41 'which is not yet supported') % f, |
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42 hint=_('merging in the other direction ' |
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43 'may work')) |
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44 else: |
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45 raise error.Abort(_('conflict in file \'%s\' is outside ' |
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46 'narrow clone') % f) |
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47 |
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48 return actions, diverge, renamedelete |
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49 |
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50 extensions.wrapfunction(merge, 'manifestmerge', _manifestmerge) |
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51 |
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52 def _checkcollision(orig, repo, wmf, actions): |
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53 narrowmatch = repo.narrowmatch() |
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54 if not narrowmatch.always(): |
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55 wmf = wmf.matches(narrowmatch) |
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56 if actions: |
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57 narrowactions = {} |
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58 for m, actionsfortype in actions.iteritems(): |
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59 narrowactions[m] = [] |
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60 for (f, args, msg) in actionsfortype: |
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61 if narrowmatch(f): |
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62 narrowactions[m].append((f, args, msg)) |
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63 actions = narrowactions |
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64 return orig(repo, wmf, actions) |
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65 |
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66 extensions.wrapfunction(merge, '_checkcollision', _checkcollision) |
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67 |
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68 def _computenonoverlap(orig, repo, *args, **kwargs): |
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69 u1, u2 = orig(repo, *args, **kwargs) |
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70 narrowmatch = repo.narrowmatch() |
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71 if narrowmatch.always(): |
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72 return u1, u2 |
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73 |
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74 u1 = [f for f in u1 if narrowmatch(f)] |
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75 u2 = [f for f in u2 if narrowmatch(f)] |
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76 return u1, u2 |
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77 extensions.wrapfunction(copies, '_computenonoverlap', _computenonoverlap) |