def get_volume_mbsize(self, mbsize, size_type, realpath, filesystem_name):
"""
Implements size lookup for the given path and desired
filesystem according to the specified size type
"""
if size_type == 'freespace':
# Please note for nested volumes which contains other volumes
# the freespace calculation is not correct. Example:
# /usr is a volume and /usr/lib is a volume. If freespace is
# set for the /usr volume the data size calculated also
# contains the data of the /usr/lib path which will live in
# an extra volume later. The result will be more freespace
# than expected ! Especially for the root volume this matters
# most because it always nests all other volumes. Thus it is
# better to use a fixed size for the root volume if it is not
# configured to use all rest space
#
# You are invited to fix it :)
volume_size = SystemSize(
self.root_dir + '/' + realpath
)
mbsize = int(mbsize) + \
Defaults.get_min_volume_mbytes()
mbsize += volume_size.customize(
volume_size.accumulate_mbyte_file_sizes(),
filesystem_name
)
return mbsize
def __accumulate_volume_size(self, root_mbytes):
"""
calculate number of mbytes to add to the disk to allow
the creaton of the volumes with their configured size
"""
disk_volume_mbytes = 0
data_volume_mbytes = self.__calculate_volume_mbytes()
root_volume = self.__get_root_volume_configuration()
for volume in self.volumes:
if volume.realpath and not volume.realpath == '/' and volume.size:
[size_type, req_size] = volume.size.split(':')
disk_add_mbytes = 0
if size_type == 'freespace':
disk_add_mbytes += int(req_size) + \
Defaults.get_min_volume_mbytes()
else:
disk_add_mbytes += int(req_size) - \
data_volume_mbytes.volume[volume.realpath]
if disk_add_mbytes > 0:
disk_volume_mbytes += disk_add_mbytes
else:
log.warning(
'volume size of %s MB for %s is too small, skipped',
int(req_size), volume.realpath
)
if root_volume:
if root_volume.size_type == 'freespace':
disk_add_mbytes += root_volume.req_size + \
Defaults.get_min_volume_mbytes()
else:
disk_add_mbytes = root_volume.req_size - \
root_mbytes + data_volume_mbytes.total
if disk_add_mbytes > 0:
disk_volume_mbytes += disk_add_mbytes
else:
log.warning(
'root volume size of %s MB is too small, skipped',
root_volume.req_size
)
return disk_volume_mbytes
def __accumulate_volume_size(self, root_mbytes):
"""
calculate number of mbytes to add to the disk to allow
the creaton of the volumes with their configured size
"""
disk_volume_mbytes = 0
data_volume_mbytes = self.__calculate_volume_mbytes()
root_volume = self.__get_root_volume_configuration()
for volume in self.volumes:
if volume.realpath and not volume.realpath == '/' and volume.size:
[size_type, req_size] = volume.size.split(':')
disk_add_mbytes = 0
if size_type == 'freespace':
disk_add_mbytes += int(req_size) + \
Defaults.get_min_volume_mbytes()
else:
disk_add_mbytes += int(req_size) - \
data_volume_mbytes.volume[volume.realpath]
if disk_add_mbytes > 0:
disk_volume_mbytes += disk_add_mbytes
else:
log.warning(
'volume size of %s MB for %s is too small, skipped',
int(req_size), volume.realpath)
if root_volume:
if root_volume.size_type == 'freespace':
disk_add_mbytes += root_volume.req_size + \
Defaults.get_min_volume_mbytes()
else:
disk_add_mbytes = root_volume.req_size - \
root_mbytes + data_volume_mbytes.total
if disk_add_mbytes > 0:
disk_volume_mbytes += disk_add_mbytes
else:
log.warning('root volume size of %s MB is too small, skipped',
root_volume.req_size)
return disk_volume_mbytes
def get_volume_mbsize(self, mbsize, size_type, realpath, filesystem_name):
"""
Implements size lookup for the given path and desired
filesystem according to the specified size type
"""
if size_type == 'freespace':
# Please note for nested volumes which contains other volumes
# the freespace calculation is not correct. Example:
# /usr is a volume and /usr/lib is a volume. If freespace is
# set for the /usr volume the data size calculated also
# contains the data of the /usr/lib path which will live in
# an extra volume later. The result will be more freespace
# than expected ! Especially for the root volume this matters
# most because it always nests all other volumes. Thus it is
# better to use a fixed size for the root volume if it is not
# configured to use all rest space
#
# You are invited to fix it :)
volume_size = SystemSize(self.root_dir + '/' + realpath)
mbsize = int(mbsize) + \
Defaults.get_min_volume_mbytes()
mbsize += volume_size.customize(
volume_size.accumulate_mbyte_file_sizes(), filesystem_name)
return mbsize
def get_volumes(self):
"""
get volumes section from systemdisk
"""
volume_type_list = []
systemdisk_section = self.get_build_type_system_disk_section()
if systemdisk_section:
volume_type = namedtuple(
'volume_type',
['name', 'size', 'realpath', 'mountpoint', 'fullsize'])
volumes = systemdisk_section.get_volume()
have_root_volume_setup = False
have_full_size_volume = False
if volumes:
for volume in volumes:
name = volume.get_name()
mountpoint = volume.get_mountpoint()
size = volume.get_size()
freespace = volume.get_freespace()
fullsize = False
realpath = None
if mountpoint:
realpath = mountpoint
elif '@root' not in name:
realpath = name
if '@root' in name:
have_root_volume_setup = True
name = 'Root'
realpath = '/'
if not mountpoint:
# if no mountpoint is specified the name attribute is
# both, the path information as well as the name of
# the volume. However turning a path value into a
# variable requires to introduce a directory separator
# different from '/'. In kiwi the '_' is used and that
# forbids to use this letter as part of name if no
# mountpoint is specified:
if '_' in name:
raise KiwiInvalidVolumeName(
'mountpoint attribute required for volume %s' %
name)
name = 'LV' + self.__to_volume_name(name)
else:
# if a mountpoint path is specified the value is turned
# into a path variable and name stays untouched. However
# the mountpoint path currently is not allowed to
# contain the directory separator '_'. In order to fix
# this limitation the way the kiwi initrd code handles
# the volume information needs to change first
if '_' in mountpoint:
raise KiwiInvalidVolumeName(
'mountpoint %s must not contain "_"' %
mountpoint)
mountpoint = 'LV' + self.__to_volume_name(mountpoint)
# the given name is used as shell variable in the kiwi boot
# code. Thus the name must follow the bash variable name
# conventions
if not re.match('^[a-zA-Z_]+[a-zA-Z0-9_]*$', name):
raise KiwiInvalidVolumeName(
'name %s invalid for use as shell variable' % name)
if size:
size = 'size:' + format(self.__to_mega_byte(size))
elif freespace:
size = 'freespace:' + format(
self.__to_mega_byte(freespace))
else:
size = 'freespace:' + format(
Defaults.get_min_volume_mbytes())
if ':all' in size:
size = None
fullsize = True
have_full_size_volume = True
volume_type_list.append(
volume_type(name=name,
size=size,
fullsize=fullsize,
mountpoint=mountpoint,
realpath=realpath))
if not have_root_volume_setup:
# There must always be a root volume setup. It will be the
# full size volume if no other volume has this setup
if have_full_size_volume:
size = 'freespace:' + format(
Defaults.get_min_volume_mbytes())
fullsize = False
else:
size = None
fullsize = True
volume_type_list.append(
volume_type(name='LVRoot',
size=size,
fullsize=fullsize,
mountpoint=None,
realpath='/'))
return volume_type_list