def __init__(self, dir):
self.__base_url = 'http://www.prosoar.de/'
self.__cmd_7zip = '7zr'
self.__cmd_wget = 'wget'
self.__dir = os.path.abspath(dir)
self.__manifest = None
if not os.path.exists(self.__dir):
os.makedirs(self.__dir)
subprocess.check_call([self.__cmd_wget, '-q', '-N', '-P', self.__dir, self.__base_url + 'checksums'])
self.__checksums = {}
for line in slurp(os.path.join(self.__dir, 'checksums')).split("\n"):
line = line.strip()
if line != '':
line = line.split(None, 1)
self.__checksums[line[1]] = line[0]
def __get_local_checksum(self, file):
md5_path = file + '.md5'
if os.path.exists(md5_path):
return slurp(md5_path)
if not os.path.isfile(file):
return None
md5 = hashlib.md5()
file = open(file, 'rb')
try:
while True:
data = file.read(0xFFFF)
if not data:
break
md5.update(data)
finally:
file.close()
md5 = md5.hexdigest()
spew(md5_path, md5)
return md5
def manifest(self):
if not self.__manifest:
self.__manifest = json.loads(slurp(self.retrieve('manifest')))
return self.__manifest