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comparison mercurial/pure/parsers.py @ 46857:cc65cea90edb

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revlog: move the details of revlog "v1" index inside revlog.utils.constants The revlog module is quite large and this kind of format information would handy for other module. So let us start to gather this information about the format in a more appropriate place. We update various reference to this information to use the new "source of truth" in the process. Differential Revision: https://phab.mercurial-scm.org/D10304
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Mon, 05 Apr 2021 12:21:01 +0200
parents d4ba4d51f85f
children 85e3a630cad9
comparison
equal deleted inserted replaced
46856:34e1fa4b548a 46857:cc65cea90edb
15 pycompat, 15 pycompat,
16 util, 16 util,
17 ) 17 )
18 18
19 from ..revlogutils import nodemap as nodemaputil 19 from ..revlogutils import nodemap as nodemaputil
20 from ..revlogutils import constants as revlog_constants
20 21
21 stringio = pycompat.bytesio 22 stringio = pycompat.bytesio
22 23
23 24
24 _pack = struct.pack 25 _pack = struct.pack
41 return int(int(offset) << 16 | type) 42 return int(int(offset) << 16 | type)
42 43
43 44
44 class BaseIndexObject(object): 45 class BaseIndexObject(object):
45 # Format of an index entry according to Python's `struct` language 46 # Format of an index entry according to Python's `struct` language
46 index_format = b">Qiiiiii20s12x" 47 index_format = revlog_constants.INDEX_ENTRY_V1.format
47 # Size of a C unsigned long long int, platform independent 48 # Size of a C unsigned long long int, platform independent
48 big_int_size = struct.calcsize(b'>Q') 49 big_int_size = struct.calcsize(b'>Q')
49 # Size of a C long int, platform independent 50 # Size of a C long int, platform independent
50 int_size = struct.calcsize(b'>i') 51 int_size = struct.calcsize(b'>i')
51 # Size of the entire index format 52 # Size of the entire index format
52 index_size = struct.calcsize(index_format) 53 index_size = revlog_constants.INDEX_ENTRY_V1.size
53 # An empty index entry, used as a default value to be overridden, or nullrev 54 # An empty index entry, used as a default value to be overridden, or nullrev
54 null_item = (0, 0, 0, -1, -1, -1, -1, nullid) 55 null_item = (0, 0, 0, -1, -1, -1, -1, nullid)
55 56
56 @property 57 @property
57 def nodemap(self): 58 def nodemap(self):