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#!/usr/bin/python
#
# Check components of build dependencies and warn about universe/multiverse
# ones, for a package destined for main/restricted
#
# Copyright (C) 2011 Canonical
#
# Authors:
# Martin Pitt
#
# 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; version 3.
#
# 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 Street, Fifth Floor, Boston, MA 02110-1301 USA
import apt
import sys
import os.path
def check_support(apt_cache, pkgname, alt=False):
'''Check if pkgname is in main or restricted.
This prints messages if a package is not in main/restricted, or only
partially (i. e. source in main, but binary in universe).
'''
if alt:
prefix = ' ... alternative ' + pkgname
else:
prefix = ' * ' + pkgname
try:
pkg = apt_cache[pkgname]
except KeyError:
print >> sys.stderr, prefix, 'does not exist (pure virtual?)'
return False
section = pkg.candidate.section
if section.startswith('universe') or section.startswith('multiverse'):
# check if the source package is in main and thus will only need binary
# promotion
source_records = apt.apt_pkg.SourceRecords()
if not source_records.lookup(pkg.candidate.source_name):
print >> sys.stderr, 'ERROR: Cannot lookup source package for', \
pkg.name
print prefix, 'package is in', section.split('/')[0]
return False
src = apt.apt_pkg.TagSection(source_records.record)
if (src['Section'].startswith('universe') or
src['Section'].startswith('multiverse')):
print prefix, 'binary and source package is in', \
section.split('/')[0]
return False
else:
print prefix, 'is in', section.split('/')[0] + ', but its source', \
pkg.candidate.source_name, \
('is already in main; file an ubuntu-archive bug for '
'promoting the current preferred alternative')
return True
if alt:
print prefix, 'is already in main; consider preferring it'
return True
def check_build_dependencies(apt_cache, control):
print 'Checking support status of build dependencies...'
any_unsupported = False
for field in ('Build-Depends', 'Build-Depends-Indep'):
if field not in control.section:
continue
for or_group in apt.apt_pkg.parse_src_depends(control.section[field]):
pkgname = or_group[0][0]
if not check_support(apt_cache, pkgname):
# check non-preferred alternatives
for altpkg in or_group[1:]:
if check_support(apt_cache, altpkg[0], alt=True):
break
else:
any_unsupported = True
return any_unsupported
def check_binary_dependencies(apt_cache, control):
any_unsupported = False
print '\nChecking support status of binary dependencies...'
while True:
try:
control.next()
except StopIteration:
break
for field in ('Depends', 'Pre-Depends', 'Recommends'):
if field not in control.section:
continue
for or_group in apt.apt_pkg.parse_depends(control.section[field]):
pkgname = or_group[0][0]
if pkgname.startswith('$'):
continue
if not check_support(apt_cache, pkgname):
# check non-preferred alternatives
for altpkg in or_group[1:]:
if check_support(apt_cache, altpkg[0], alt=True):
break
else:
any_unsupported = True
return any_unsupported
def main():
apt_cache = apt.Cache()
if not os.path.exists('debian/control'):
print >> sys.stderr, ('debian/control not found. You need to run '
'this tool in a source package directory')
sys.exit(1)
# get build dependencies from debian/control
control = apt.apt_pkg.TagFile(open('debian/control'))
control.next()
unsupported_build_deps = check_build_dependencies(apt_cache, control)
unsupported_binary_deps = check_binary_dependencies(apt_cache, control)
if unsupported_build_deps or unsupported_binary_deps:
print ('\nPlease check https://wiki.ubuntu.com/MainInclusionProcess if '
'this source package needs to get into in main/restricted, or '
'reconsider if the package really needs above dependencies.')
else:
print 'All dependencies are supported in main or restricted.'
if __name__ == '__main__':
main()
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