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# vim: set fileencoding=utf-8 :
#
# (C) 2006,2007 Guido Guenther <agx@sigxcpu.org>
"""provides some debian source package related helpers"""
import email
import commands
import os
# When trying to parse a version-number from a dsc or changes file, these are
# the valid characters.
debian_version_chars = 'a-zA-Z\d.~+-'
def parse_changelog(changelog):
"""parse changelog file changelog"""
status, output = commands.getstatusoutput('dpkg-parsechangelog -l%s' % (changelog, ))
if status:
return None
cp = email.message_from_string(output)
if '-' in cp['Version']:
upstream_version, cp['Debian-Version'] = cp['Version'].rsplit('-', 1)
if ':' in upstream_version:
cp['Epoch'], cp['Upstream-Version'] = upstream_version.split(':', 1)
else:
cp['Upstream-Version'] = upstream_version
else:
cp['Debian-Version'] = cp['Version']
return cp
def orig_file(cp):
"The name of the orig.tar.gz belonging to changelog cp"
return "%s_%s.orig.tar.gz" % (cp['Source'], cp['Upstream-Version'])
def is_native(cp):
"Is this a debian native package"
return [ True, False ]['-' in cp['Version']]
def has_orig(cp, dir):
"Check if orig.tar.gz exists in dir"
try:
os.stat( os.path.join(dir, orig_file(cp)) )
except OSError:
return False
return True
# vim:et:ts=4:sw=4:
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