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comparison mercurial/branchmap.py @ 20032:175c6fd8cacc

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subsettable: move from repoview to branchmap, the only place it's used This is a step towards breaking an import cycle between revset and repoview. Import cycles happened to work in Python 2 with implicit relative imports, but breaks on Python 3 when we start using explicit relative imports via 2to3 rewrite rules.
author Augie Fackler <raf@durin42.com>
date Wed, 06 Nov 2013 14:38:34 -0500
parents a32ef044b99a
children b9515fb9e72a
comparison
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20031:6c1adf2067bb 20032:175c6fd8cacc
5 # This software may be used and distributed according to the terms of the 5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2 or any later version. 6 # GNU General Public License version 2 or any later version.
7 7
8 from node import bin, hex, nullid, nullrev 8 from node import bin, hex, nullid, nullrev
9 import encoding 9 import encoding
10 import util, repoview 10 import util
11 11
12 def _filename(repo): 12 def _filename(repo):
13 """name of a branchcache file for a given repo or repoview""" 13 """name of a branchcache file for a given repo or repoview"""
14 filename = "cache/branchheads" 14 filename = "cache/branchheads"
15 if repo.filtername: 15 if repo.filtername:
56 partial = None 56 partial = None
57 return partial 57 return partial
58 58
59 59
60 60
61 ### Nearest subset relation
62 # Nearest subset of filter X is a filter Y so that:
63 # * Y is included in X,
64 # * X - Y is as small as possible.
65 # This create and ordering used for branchmap purpose.
66 # the ordering may be partial
67 subsettable = {None: 'visible',
68 'visible': 'served',
69 'served': 'immutable',
70 'immutable': 'base'}
71
61 def updatecache(repo): 72 def updatecache(repo):
62 cl = repo.changelog 73 cl = repo.changelog
63 filtername = repo.filtername 74 filtername = repo.filtername
64 partial = repo._branchcaches.get(filtername) 75 partial = repo._branchcaches.get(filtername)
65 76
66 revs = [] 77 revs = []
67 if partial is None or not partial.validfor(repo): 78 if partial is None or not partial.validfor(repo):
68 partial = read(repo) 79 partial = read(repo)
69 if partial is None: 80 if partial is None:
70 subsetname = repoview.subsettable.get(filtername) 81 subsetname = subsettable.get(filtername)
71 if subsetname is None: 82 if subsetname is None:
72 partial = branchcache() 83 partial = branchcache()
73 else: 84 else:
74 subset = repo.filtered(subsetname) 85 subset = repo.filtered(subsetname)
75 partial = subset.branchmap().copy() 86 partial = subset.branchmap().copy()