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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2010 Per Øyvind Karlsen <peroyvind@mandriva.org>
#
# This program is free software. It may be redistributed and/or modified under
# the terms of the LGPL version 2.1 (or later).
#
# RPM5 python (egg) dependency generator.
#
from getopt import getopt
from os.path import basename, dirname, isdir, sep, splitext
from sys import argv, stdin, version
from pkg_resources import Distribution, FileMetadata, PathMetadata
from distutils.sysconfig import get_python_lib
opts, args = getopt(argv[1:], 'hPRSCOE',
['help', 'provides', 'requires', 'suggests', 'conflicts', 'obsoletes', 'extras'])
Provides = False
Requires = False
Suggests = False
Conflicts = False
Obsoletes = False
Extras = False
for o, a in opts:
if o in ('-h', '--help'):
print '-h, --help\tPrint help'
print '-P, --provides\tPrint Provides'
print '-R, --requires\tPrint Requires'
print '-S, --suggests\tPrint Suggests'
print '-C, --conflicts\tPrint Conflicts'
print '-O, --obsoletes\tPrint Obsoletes (unused)'
print '-E, --extras\tPrint Extras '
exit(1)
elif o in ('-P', '--provides'):
Provides = True
elif o in ('-R', '--requires'):
Requires = True
elif o in ('-S', '--suggests'):
Suggests = True
elif o in ('-C', '--conflicts'):
Conflicts = True
elif o in ('-O', '--obsoletes'):
Obsoletes = True
elif o in ('-E', '--extras'):
Extras = True
if Requires:
py_abi = True
else:
py_abi = False
py_deps = {}
if args:
files = args
else:
files = stdin.readlines()
for f in files:
f = f.strip()
lower = f.lower()
name = 'python(abi)'
# add dependency based on path, versioned if within versioned python directory
if py_abi and (lower.endswith('.py') or lower.endswith('.pyc') or lower.endswith('.pyo')):
if not name in py_deps:
py_deps[name] = []
purelib = get_python_lib(standard_lib=1, plat_specific=0).split(version[:3])[0]
platlib = get_python_lib(standard_lib=1, plat_specific=1).split(version[:3])[0]
for lib in (purelib, platlib):
if lib in f:
spec = ('==',f.split(lib)[1].split(sep)[0])
if not spec in py_deps[name]:
py_deps[name].append(spec)
# Determine provide, requires, conflicts & suggests based on egg metadata
if lower.endswith('.egg') or \
lower.endswith('.egg-info') or \
lower.endswith('.egg-link'):
dist_name = basename(f)
if isdir(f):
path_item = dirname(f)
metadata = PathMetadata(path_item, f)
else:
path_item = f
metadata = FileMetadata(f)
dist = Distribution.from_location(path_item, dist_name, metadata)
py_major = dist.py_version[:1]
if Provides:
# If egg metadata says package name is python, we provide python(abi)
if dist.key == 'python':
name = 'python(abi)'
if not name in py_deps:
py_deps[name] = []
py_deps[name].append(('==', dist.py_version))
name = 'pythonegg(%s)(%s)' % (py_major, dist.key)
if not name in py_deps:
py_deps[name] = []
if dist.version:
spec = ('==', dist.version)
if not spec in py_deps[name]:
py_deps[name].append(spec)
if Requires or (Suggests and dist.extras):
name = 'python(abi)'
# If egg metadata says package name is python, we don't add dependency on python(abi)
if dist.key == 'python':
py_abi = False
if name in py_deps:
py_deps.pop(name)
elif py_abi and dist.py_version:
if not name in py_deps:
py_deps[name] = []
spec = ('==', dist.py_version)
if not spec in py_deps[name]:
py_deps[name].append(spec)
deps = dist.requires()
if Suggests:
depsextras = dist.requires(extras=dist.extras)
if not Requires:
for dep in reversed(depsextras):
if dep in deps:
depsextras.remove(dep)
deps = depsextras
# add requires/suggests based on egg metadata
for dep in deps:
name = 'pythonegg(%s)(%s)' % (py_major, dep.key)
for spec in dep.specs:
if spec[0] != '!=':
if not name in py_deps:
py_deps[name] = []
if not spec in py_deps[name]:
py_deps[name].append(spec)
if not dep.specs:
py_deps[name] = []
# Unused, for automatic sub-package generation based on 'extras' from egg metadata
# TODO: implement in rpm later, or...?
if Extras:
deps = dist.requires()
extras = dist.extras
print extras
for extra in extras:
print '%%package\textras-%s' % extra
print 'Summary:\t%s extra for %s python egg' % (extra, dist.key)
print 'Group:\t\tDevelopment/Python'
depsextras = dist.requires(extras=[extra])
for dep in reversed(depsextras):
if dep in deps:
depsextras.remove(dep)
deps = depsextras
for dep in deps:
for spec in dep.specs:
if spec[0] == '!=':
print 'Conflicts:\t%s %s %s' % (dep.key, '==', spec[1])
else:
print 'Requires:\t%s %s %s' % (dep.key, spec[0], spec[1])
print '%%description\t%s' % extra
print '%s extra for %s python egg' % (extra, dist.key)
print '%%files\t\textras-%s\n' % extra
if Conflicts:
# Should we really add conflicts for extras?
# Creating a meta package per extra with suggests on, which has
# the requires/conflicts in stead might be a better solution...
for dep in dist.requires(extras=dist.extras):
name = dep.key
for spec in dep.specs:
if spec[0] == '!=':
if not name in py_deps:
py_deps[name] = []
spec = ('==', spec[1])
if not spec in py_deps[name]:
py_deps[name].append(spec)
names = py_deps.keys()
names.sort()
for name in names:
if py_deps[name]:
# Print out versioned provides, requires, suggests, conflicts
for spec in py_deps[name]:
print '%s %s %s' % (name, spec[0], spec[1])
else:
# Print out unversioned provides, requires, suggests, conflicts
print name
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