def datadir_init(self, uname=None, datadir=None):
''' Initialize datadir '''
if datadir:
self.datadir = datadir
else:
self.datadir = utils_hier.LOCALSTATEDIR
logging.debug('filesys_posix: datadir: %s', self.datadir)
logging.debug('filesys_posix: user name: %s', uname)
if uname:
self.passwd = utils_posix.getpwnam(uname)
else:
self.passwd = system_posix.getpwnam() # The common case
logging.debug('filesys_posix: uid: %d', self.passwd.pw_uid)
logging.debug('filesys_posix: gid: %d', self.passwd.pw_gid)
#
# Here we are assuming that /var (BSD) or /var/lib (Linux)
# exists and has the correct permissions.
# We are also assuming that we are running with enough privs
# to be able to create a directory there on behalf of the
# specified uid and gid.
#
logging.debug('filesys_posix: datadir init: %s', self.datadir)
utils_posix.mkdir_idempotent(self.datadir, self.passwd.pw_uid,
self.passwd.pw_gid)
def really_init_datadir(self, uname=None, datadir=None):
''' Initialize datadir '''
#
# Note: this code is the implementation of datadir_init(),
# which may be called by the backends that need it.
#
# The reason for this code structure is that some backends
# (e.g., the volatile backend) don't need to initialize
# the datadir, while others (e.g., the mlab backend) need
# to initialize the datadir.
#
if datadir:
self.datadir = datadir
else:
self.datadir = utils_hier.LOCALSTATEDIR
logging.debug('backend: datadir: %s', self.datadir)
logging.debug('backend: user name: %s', uname)
if uname:
self.passwd = self.vfs.getpwnam(uname)
else:
#
# The common case (in which you don't override the
# default user name with a custom name).
#
# XXX The following lines are the only piece of code
# in this file that is heavily system dependent.
#
# Ideally it would be better to move the functionality
# that they implement into system-specific files.
#
# BTW the lines below are so heavily system-dependent
# because I adapted them from a POSIX-only file.
#
if os.name == "posix":
from neubot import system_posix
self.passwd = system_posix.getpwnam()
elif os.name == "nt":
from neubot import utils_nt
self.passwd = utils_nt.PWEntry()
else:
raise RuntimeError("backend: unsupported system")
logging.debug('backend: uid: %d', self.passwd.pw_uid)
logging.debug('backend: gid: %d', self.passwd.pw_gid)
#
# Here we are assuming that the /var/lib (or /var) dir
# exists and has the correct permissions.
#
# We are also assuming that we are running with enough privs
# to be able to create a directory there on behalf of the
# specified uid and gid.
#
logging.debug('backend: datadir init: %s', self.datadir)
self.vfs.mkdir_idempotent(self.datadir, self.passwd.pw_uid,
self.passwd.pw_gid)
