/usr/lib/python2.7/dist-packages/pokerengine/version.py is in python-poker-engine 1.3.6-1.2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | # -*- python -*-
#
# Copyright (C) 2006 - 2010 Loic Dachary <loic@dachary.org>
# Copyright (C) 2005, 2006 Mekensleep
#
# Mekensleep
# 26 rue des rosiers
# 75004 Paris
# licensing@mekensleep.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Authors:
# Loic Dachary <loic@dachary.org>
#
#
from types import StringType
import re
from pokerengine import version_number
class Version:
verbose = 0
version_re = re.compile(r'^(\d+)\.(\d+)\.(\d+)$',
re.VERBOSE)
upgrade_re = re.compile(r'.*?(\d+\.\d+\.\d+)-(\d+\.\d+\.\d+)',
re.VERBOSE)
def __init__ (self, vstring=None):
if vstring:
self.parse(vstring)
def __repr__ (self):
return "%s ('%s')" % (self.__class__.__name__, str(self))
def __str__ (self):
return "%d.%d.%d" % self.version
def __hash__(self):
return hash(str(self))
def __cmp__ (self, other):
if isinstance(other, StringType):
other = Version(other)
return cmp(self.version, other.version)
def __add__(self, num):
ver = Version()
ver.version = (self.version[0], self.version[1], self.version[2] + num)
return ver
def __iadd__(self, num):
self.version = (self.version[0], self.version[1], self.version[2] + num)
return self
def sub(ver, num):
version = list(ver.version)
if version[2] - num < 0:
if version[1] - num < 0:
if version[0] - num < 0:
raise UserWarning, "cannot subtract %d from version %s" % ( num, str(ver) )
else:
version[0] -= num
else:
version[1] -= num
else:
version[2] -= num
ver.version = tuple(version)
return ver
sub = staticmethod(sub)
def __isub__(self, num):
return Version.sub(self, num)
def __sub__(self, num):
return Version.sub(Version(str(self)), num)
def major(self):
return self.version[0]
def medium(self):
return self.version[1]
def minor(self):
return self.version[2]
def parse(self, vstring):
match = Version.version_re.match(vstring)
if not match:
raise ValueError, "invalid version number '%s'" % vstring
(major, medium, minor) = match.groups()
self.version = tuple(map(int, [major, medium, minor]))
def upgradeChain(self, desired_version, strings):
current_version = self
upgrade_matrix = {}
for string in strings:
match = Version.upgrade_re.match(string)
if match:
( version_from, version_to ) = map(Version, match.groups())
if ( ( version_from >= current_version and version_from < desired_version )
and ( version_to > current_version and version_to <= desired_version ) ):
upgrade_matrix.setdefault(version_from, {})
if upgrade_matrix[version_from].has_key(version_to):
if Version.verbose >= 0: print "Version: duplicate upgrade string (%s => %s) keep %s, ignore %s" % ( version_from, version_to, upgrade_matrix[version_from][version_to], string)
else:
upgrade_matrix[version_from][version_to] = string
#
# Each time a version requires an upgrade (presumably for database or configuration
# file changes), a string of the kind upgrade-1.0.1-1.0.2 indicates
# the availability of an upgrade from version 1.0.1 to version 1.0.2.
#
# When switching from version 1.0.0 to version 1.0.6,
# upgradeChain return upgrade-1.0.1-1.0.2 meaning that this
# upgrade must be applied. If there also is an
# upgrade-1.0.3-1.0.5, upgradeChain will return ( upgrade-1.0.1-1.0.2, upgrade-1.0.3-1.0.5 )
# meaning that both upgrades must be applied in that order.
#
# If there was a string upgrade-0.9.0-1.0.0 or
# upgrade-3.0.0-3.1.0 in the list of available upgrades, they
# would be ignored.
#
# If there are more than one upgrade from a given version (for instance
# upgrade-1.0.0-1.0.1 and upgrade-1.0.0-1.0.4), the one that allows to
# upgrade to the highest version is preferred.
#
chain = []
while current_version != desired_version:
candidate_versions = filter(lambda version: version >= current_version, upgrade_matrix.keys())
if candidate_versions:
candidate_version = min(candidate_versions)
upgrades = upgrade_matrix[candidate_version]
current_version = max(upgrades.keys())
chain.append(upgrades[current_version])
else:
#
# There is not necessarily an upgrade file reaching the desired version,
# for instance if there was no change.
#
break
return chain
version = Version(version_number)
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