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# -*- coding: UTF-8 -*-
# Copyright © 2010-2012 Piotr Ożarowski <piotr@debian.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import logging
from debpython.pydist import parse_pydep, guess_dependency
from debpython.version import DEFAULT, SUPPORTED, debsorted, vrepr, vrange_str
# minimum version required for pycompile/pyclean
MINPYCDEP = 'python:any (>= 2.6.6-7~)'
log = logging.getLogger(__name__)
class Dependencies(object):
"""Store relations (dependencies, etc.) between packages."""
def __init__(self, package):
self.package = package
self.depends = []
self.recommends = []
self.suggests = []
self.enhances = []
self.breaks = []
self.rtscripts = []
def export_to(self, dh):
"""Fill in debhelper's substvars."""
for i in sorted(self.depends):
dh.addsubstvar(self.package, 'python:Depends', i)
for i in sorted(self.recommends):
dh.addsubstvar(self.package, 'python:Recommends', i)
for i in sorted(self.suggests):
dh.addsubstvar(self.package, 'python:Suggests', i)
for i in sorted(self.enhances):
dh.addsubstvar(self.package, 'python:Enhances', i)
for i in sorted(self.breaks):
dh.addsubstvar(self.package, 'python:Breaks', i)
for i in self.rtscripts:
dh.add_rtupdate(self.package, i)
def __str__(self):
return "D=%s; R=%s; S=%s; E=%s, B=%s; RT=%s" % (self.depends, \
self.recommends, self.suggests, self.enhances, \
self.breaks, self.rtscripts)
def depend(self, value):
if value and value not in self.depends:
self.depends.append(value)
def recommend(self, value):
if value and value not in self.recommends:
self.recommends.append(value)
def suggest(self, value):
if value and value not in self.suggests:
self.suggests.append(value)
def enhance(self, value):
if value and value not in self.enhances:
self.enhances.append(value)
def break_(self, value):
if value and value not in self.breaks:
self.breaks.append(value)
def rtscript(self, value):
if value not in self.rtscripts:
self.rtscripts.append(value)
def parse(self, stats, options):
log.debug('generating dependencies for package %s', self.package)
pub_vers = sorted(stats['public_vers'].union(stats['ext']))
if pub_vers:
dbgpkg = self.package.endswith('-dbg')
tpl = 'python-dbg' if dbgpkg else 'python'
minv = pub_vers[0]
maxv = pub_vers[-1]
# generating "python2.X | python2.Y | python2.Z" dependencies
# disabled (see #625740):
#if dbgpkg:
# tpl2 = 'python%d.%d-dbg'
#else:
# tpl2 = 'python%d.%d'
#self.depend(' | '.join(tpl2 % i for i in debsorted(pub_vers)))
# additional Depends to block python package transitions
if minv <= DEFAULT:
self.depend("%s (>= %d.%d)" % \
(tpl, minv[0], minv[1]))
if maxv >= DEFAULT:
self.depend("%s (<< %d.%d)" % \
(tpl, maxv[0], maxv[1] + 1))
# make sure pycompile binary is available
if stats['compile']:
self.depend(MINPYCDEP)
for interpreter, version in stats['shebangs']:
self.depend("%s:any" % interpreter)
for private_dir, details in stats['private_dirs'].iteritems():
versions = list(v for i, v in details.get('shebangs', []) if v)
for v in versions:
if v in SUPPORTED:
self.depend("python%d.%d:any" % v)
else:
log.info('dependency on python%s (from shebang) ignored'
' - it\'s not supported anymore', vrepr(v))
# /usr/bin/python shebang → add python to Depends
if any(True for i, v in details.get('shebangs', []) if v is None):
self.depend('python:any')
if details.get('compile', False):
self.depend(MINPYCDEP)
args = ''
vr = options.vrange
if len(versions) == 1: # only one version from shebang
args += "-V %s" % vrepr(versions[0])
elif vr:
# if there are no hardcoded versions in shebang or there
# are scripts for different Python versions: compile with
# default Python version (or the one requested via X-P-V)
args += "-V %s" % vrange_str(vr)
if vr == (None, None):
pass
elif vr[0] == vr[1]:
self.depend("python%s:any" % vrepr(vr[0]))
else:
if vr[0]: # minimum version specified
self.depend("python:any (>= %s)" % vrepr(vr[0]))
if vr[1]: # maximum version specified
self.depend("python:any (<< %d.%d)" % \
(vr[1][0], vr[1][1] + 1))
for pattern in options.regexpr or []:
args += " -X '%s'" % pattern.replace("'", r"'\''")
self.rtscript((private_dir, args))
if options.guess_deps:
for fn in stats['requires.txt']:
# TODO: should options.recommends and options.suggests be
# removed from requires.txt?
for i in parse_pydep(fn):
self.depend(i)
# add dependencies from --depends
for item in options.depends or []:
self.depend(guess_dependency(item))
# add dependencies from --recommends
for item in options.recommends or []:
self.recommend(guess_dependency(item))
# add dependencies from --suggests
for item in options.suggests or []:
self.suggest(guess_dependency(item))
log.debug(self)
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