76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
import os
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import re
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import subprocess
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##
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import psutil
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##
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from aif.disk.block import Partition
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from aif.disk.luks import LUKS
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from aif.disk.lvm import Group as LVMGroup
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from aif.disk.mdadm import Array as MDArray
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# I wish there was a better way of doing this.
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# https://unix.stackexchange.com/a/98680
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FS_FSTYPES = []
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with open('/proc/filesystems', 'r') as fh:
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for line in fh.readlines():
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l = [i.strip() for i in line.split()]
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if not l:
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continue
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if len(l) == 1:
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FS_FSTYPES.append(l[0])
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else:
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FS_FSTYPES.append(l[1])
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_mod_dir = os.path.join('/lib/modules',
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os.uname().release,
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'kernel/fs')
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_strip_mod_suffix = re.compile(r'(?P<fsname>)\.ko(\.(x|g)?z))?$', re.IGNORECASE)
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for i in os.listdir(_mod_dir):
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path = os.path.join(_mod_dir, i)
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fs_name = None
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if os.path.isdir(path):
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fs_name = i
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elif os.path.isfile(path):
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mod_name = _strip_mod_suffix.search(i)
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fs_name = mod_name.group('fsname')
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if fs_name:
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# The kernel *probably* has autoloading enabled, but in case it doesn't...
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# TODO: logging!
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subprocess.run(['modprobe', fs_name])
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FS_FSTYPES.append(fs_name)
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class FS(object):
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def __init__(self, fs_xml, sourceobj):
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self.xml = fs_xml
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if not isinstance(sourceobj, (Partition, LUKS, LVMGroup, MDArray)):
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raise ValueError(('sourceobj must be of type '
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'aif.disk.block.Partition, '
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'aif.disk.luks.LUKS, '
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'aif.disk.lvm.Group, or'
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'aif.disk.mdadm.Array'))
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self.source = sourceobj
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self.devpath = sourceobj.devpath
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self.formatted = False
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self.fstype = self.xml.attrib.get('type')
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def format(self):
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if self.formatted:
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return ()
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# This is a safeguard. We do *not* want to high-format a disk that is mounted.
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for p in psutil.disk_partitions(all = True):
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if self.devpath in p:
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raise RuntimeError(('{0} is mounted;'
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'we are cowardly refusing to apply a filesystem to it').format(self.devpath))
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# TODO! Logging
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cmd = ['mkfs',
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'-t', self.fstype]
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for o in self.xml.findall('opt'):
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cmd.append(o.attrib['name'])
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if o.text:
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cmd.append(o.text)
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cmd.append(self.devpath)
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subprocess.run(cmd)
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self.is_hiformatted = True
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return()
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