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import os
import subprocess
from xml.dom import minidom
scripts_dir = os.path.dirname(__file__)
base_dir = os.path.dirname(scripts_dir)
def get_distribution():
if 'SJH_DISTRIBUTION' in os.environ:
return os.environ['SJH_DISTRIBUTION'].split('-')
# Fedora
if os.path.exists('/etc/fedora-release'):
name = 'fedora'
f = open('/etc/fedora-release')
full_name = f.read()
f.close()
if 'Rawhide' in full_name:
version = 'rawhide'
else:
version = full_name.split(' ')[2]
return name, version
# Debian and Ubuntu
try:
out, err = subprocess.Popen(['lsb_release', '-is'],
stdout=subprocess.PIPE).communicate()
name = out.strip().lower()
out, err = subprocess.Popen(['lsb_release', '-rs'],
stdout=subprocess.PIPE).communicate()
version = out.strip()
if name == 'debian' and version == 'testing':
version = 'unstable'
return name, version
except OSError:
pass
return None, None
def check_package(package):
name, version = get_distribution()
if name in ['fedora', 'mandrivalinux']:
ret = subprocess.call(['rpm', '--quiet', '-q', package])
return ret == 0
elif name in ['ubuntu', 'debian']:
cmd = ["dpkg-query", "-f='${status}'", "-W", package]
out, err = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()
return out.find('install ok installed') != -1
return None
def parse_dependencies():
name, version = get_distribution()
if name is None or version is None:
return None
filename = os.path.join(base_dir, 'config', 'sysdeps',
'%s-%s.xml' % (name, version))
if not os.path.exists(filename):
return None
return minidom.parse(filename)
def get_packages():
document = parse_dependencies()
if document is None:
return []
packages = []
root = document.childNodes[0]
for node in root.childNodes:
if node.nodeType == node.ELEMENT_NODE:
if node.nodeName == 'package':
name = node.getAttribute('name')
if node.hasAttribute('source'):
source = node.getAttribute('source')
else:
source = None
packages.append((name, source))
return packages
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