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def release_dict():
"""Return the output of lsb_release -a as a dictionary"""
from subprocess import PIPE
try:
output, err = bb.process.run(['lsb_release', '-a'], stderr=PIPE)
except bb.process.CmdError as exc:
return None
data = {}
for line in output.splitlines():
try:
key, value = line.split(":\t", 1)
except ValueError:
continue
else:
data[key] = value
return data
def release_dict_file():
""" Try to gather LSB release information manually when lsb_release tool is unavailable """
data = None
try:
if os.path.exists('/etc/lsb-release'):
data = {}
with open('/etc/lsb-release') as f:
for line in f:
key, value = line.split("=", 1)
data[key] = value.strip()
elif os.path.exists('/etc/redhat-release'):
data = {}
with open('/etc/redhat-release') as f:
distro = f.readline().strip()
import re
match = re.match(r'(.*) release (.*) \((.*)\)', distro)
if match:
data['DISTRIB_ID'] = match.group(1)
data['DISTRIB_RELEASE'] = match.group(2)
elif os.path.exists('/etc/SuSE-release'):
data = {}
data['DISTRIB_ID'] = 'SUSE LINUX'
with open('/etc/SuSE-release') as f:
for line in f:
if line.startswith('VERSION = '):
data['DISTRIB_RELEASE'] = line[10:].rstrip()
break
except IOError:
return None
return data
def distro_identifier(adjust_hook=None):
"""Return a distro identifier string based upon lsb_release -ri,
with optional adjustment via a hook"""
lsb_data = release_dict()
if lsb_data:
distro_id, release = lsb_data['Distributor ID'], lsb_data['Release']
else:
lsb_data_file = release_dict_file()
if lsb_data_file:
distro_id, release = lsb_data_file['DISTRIB_ID'], lsb_data_file['DISTRIB_RELEASE']
else:
distro_id, release = None, None
if adjust_hook:
distro_id, release = adjust_hook(distro_id, release)
if not distro_id:
return "Unknown"
return '{0}-{1}'.format(distro_id, release).replace(' ','-').replace('/','-')
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