Mercurial > hg
annotate tests/testlib/ext-sidedata-5.py @ 48851:d739cd69bb6a
revlog: return 0 for the fast_rank of nullrev
By convention, the rank of the null revision is 0. This particular revision is
never "physically" stored in the changelog, so it is a special case.
For consistency, the value `None` is still being returned for revlogs which do
not store the fast_rank property for any revision.
Differential Revision: https://phab.mercurial-scm.org/D12208
author | pacien <pacien.trangirard@pacien.net> |
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date | Mon, 21 Feb 2022 15:53:03 +0100 |
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1 # coding: utf8 |
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2 # ext-sidedata-5.py - small extension to test (differently still) the sidedata |
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3 # logic |
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4 # |
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5 # Simulates a server for a simple sidedata exchange. |
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6 # |
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7 # Copyright 2021 Raphaël Gomès <rgomes@octobus.net> |
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8 # |
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9 # This software may be used and distributed according to the terms of the |
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10 # GNU General Public License version 2 or any later version. |
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11 |
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12 from __future__ import absolute_import |
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13 |
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14 import hashlib |
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15 import struct |
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16 |
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17 from mercurial import ( |
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18 extensions, |
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19 revlog, |
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20 ) |
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21 |
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22 |
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23 from mercurial.revlogutils import sidedata as sidedatamod |
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24 from mercurial.revlogutils import constants |
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25 |
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26 NO_FLAGS = (0, 0) |
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27 |
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28 |
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29 def compute_sidedata_1(repo, revlog, rev, sidedata, text=None): |
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30 sidedata = sidedata.copy() |
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31 if text is None: |
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32 text = revlog.revision(rev) |
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33 sidedata[sidedatamod.SD_TEST1] = struct.pack('>I', len(text)) |
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34 return sidedata, NO_FLAGS |
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35 |
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36 |
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37 def compute_sidedata_2(repo, revlog, rev, sidedata, text=None): |
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38 sidedata = sidedata.copy() |
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39 if text is None: |
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40 text = revlog.revision(rev) |
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41 sha256 = hashlib.sha256(text).digest() |
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42 sidedata[sidedatamod.SD_TEST2] = struct.pack('>32s', sha256) |
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43 return sidedata, NO_FLAGS |
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44 |
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45 |
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46 def reposetup(ui, repo): |
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47 # Sidedata keys happen to be the same as the categories, easier for testing. |
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48 for kind in constants.ALL_KINDS: |
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49 repo.register_sidedata_computer( |
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50 kind, |
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51 sidedatamod.SD_TEST1, |
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52 (sidedatamod.SD_TEST1,), |
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53 compute_sidedata_1, |
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54 0, |
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55 ) |
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56 repo.register_sidedata_computer( |
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57 kind, |
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58 sidedatamod.SD_TEST2, |
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59 (sidedatamod.SD_TEST2,), |
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60 compute_sidedata_2, |
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61 0, |
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62 ) |
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63 |
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64 # We don't register sidedata computers because we don't care within these |
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65 # tests |
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66 repo.register_wanted_sidedata(sidedatamod.SD_TEST1) |
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67 repo.register_wanted_sidedata(sidedatamod.SD_TEST2) |
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68 |
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69 |
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70 def wrapaddrevision( |
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71 orig, self, text, transaction, link, p1, p2, *args, **kwargs |
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72 ): |
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73 if kwargs.get('sidedata') is None: |
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74 kwargs['sidedata'] = {} |
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75 sd = kwargs['sidedata'] |
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76 ## let's store some arbitrary data just for testing |
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77 # text length |
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78 sd[sidedatamod.SD_TEST1] = struct.pack('>I', len(text)) |
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79 # and sha2 hashes |
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80 sha256 = hashlib.sha256(text).digest() |
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81 sd[sidedatamod.SD_TEST2] = struct.pack('>32s', sha256) |
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82 return orig(self, text, transaction, link, p1, p2, *args, **kwargs) |
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83 |
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84 |
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85 def extsetup(ui): |
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86 extensions.wrapfunction(revlog.revlog, 'addrevision', wrapaddrevision) |