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annotate mercurial/revlogutils/__init__.py @ 48946:642e31cb55f0

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py3: use class X: instead of class X(object): The inheritance from object is implied in Python 3. So this should be equivalent. This change was generated via an automated search and replace. So there may have been some accidental changes. Differential Revision: https://phab.mercurial-scm.org/D12352
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 21 Feb 2022 13:08:28 -0700
parents 6000f5b25c9b
children 05db41701ece
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1 # mercurial.revlogutils -- basic utilities for revlog
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2 #
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3 # Copyright 2019 Pierre-Yves David <pierre-yves.david@octobus.net>
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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
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9 from ..thirdparty import attr
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10 from ..interfaces import repository
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11
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12 # See mercurial.revlogutils.constants for doc
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13 COMP_MODE_INLINE = 2
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14 RANK_UNKNOWN = -1
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15
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16
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17 def offset_type(offset, type):
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18 if (type & ~repository.REVISION_FLAGS_KNOWN) != 0:
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19 raise ValueError(b'unknown revlog index flags: %d' % type)
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20 return int(int(offset) << 16 | type)
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21
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22
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23 def entry(
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24 data_offset,
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25 data_compressed_length,
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26 data_delta_base,
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27 link_rev,
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28 parent_rev_1,
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29 parent_rev_2,
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30 node_id,
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31 flags=0,
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32 data_uncompressed_length=-1,
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33 data_compression_mode=COMP_MODE_INLINE,
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34 sidedata_offset=0,
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35 sidedata_compressed_length=0,
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36 sidedata_compression_mode=COMP_MODE_INLINE,
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37 rank=RANK_UNKNOWN,
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38 ):
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39 """Build one entry from symbolic name
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40
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41 This is useful to abstract the actual detail of how we build the entry
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42 tuple for caller who don't care about it.
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43
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44 This should always be called using keyword arguments. Some arguments have
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45 default value, this match the value used by index version that does not store such data.
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46 """
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47 return (
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48 offset_type(data_offset, flags),
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49 data_compressed_length,
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50 data_uncompressed_length,
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51 data_delta_base,
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52 link_rev,
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53 parent_rev_1,
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54 parent_rev_2,
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55 node_id,
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56 sidedata_offset,
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57 sidedata_compressed_length,
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58 data_compression_mode,
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59 sidedata_compression_mode,
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60 rank,
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61 )
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62
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63
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64 @attr.s(slots=True, frozen=True)
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65 class revisioninfo:
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66 """Information about a revision that allows building its fulltext
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67 node: expected hash of the revision
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68 p1, p2: parent revs of the revision
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69 btext: built text cache consisting of a one-element list
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70 cachedelta: (baserev, uncompressed_delta) or None
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71 flags: flags associated to the revision storage
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72
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73 One of btext[0] or cachedelta must be set.
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74 """
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75
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76 node = attr.ib()
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77 p1 = attr.ib()
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78 p2 = attr.ib()
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79 btext = attr.ib()
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80 textlen = attr.ib()
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81 cachedelta = attr.ib()
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82 flags = attr.ib()