def create_fstab(self, fstab: Fstab) -> None:
"""
Create etc/fstab from given Fstab object
Custom fstab modifications are possible and handled
in the following order:
1. Look for an optional fstab.append file which allows
to append custom fstab entries to the final fstab. Once
embedded the fstab.append file will be deleted
2. Look for an optional fstab.patch file which allows
to patch the current contents of the fstab file with
a given patch file. Once patched the fstab.patch file will
be deleted
3. Look for an optional fstab.script file which is called
chrooted for the purpose of updating the fstab file as
appropriate. Note: There is no validation in place that
checks if the script actually handles fstab or any other
file in the image rootfs. Once called the fstab.script
file will be deleted
:param object fstab: instance of Fstab
"""
fstab_file = self.root_dir + '/etc/fstab'
fstab_append_file = self.root_dir + '/etc/fstab.append'
fstab_patch_file = self.root_dir + '/etc/fstab.patch'
fstab_script_file = self.root_dir + '/etc/fstab.script'
fstab.export(fstab_file)
if os.path.exists(fstab_append_file):
with open(fstab_file, 'a') as fstab_io:
with open(fstab_append_file, 'r') as append:
fstab_io.write(append.read())
Path.wipe(fstab_append_file)
if os.path.exists(fstab_patch_file):
Command.run(
['patch', fstab_file, fstab_patch_file]
)
Path.wipe(fstab_patch_file)
if os.path.exists(fstab_script_file):
Command.run(
['chroot', self.root_dir, '/etc/fstab.script']
)
Path.wipe(fstab_script_file)
class TestFstab(object):
@fixture(autouse=True)
def inject_fixtures(self, caplog):
self._caplog = caplog
def setup(self):
self.fstab = Fstab()
with self._caplog.at_level(logging.WARNING):
self.fstab.read('../data/fstab')
assert format(
'Mountpoint for "LABEL=bar /home xfs defaults 0 0" '
'in use by "LABEL=foo /home ext4 defaults 0 0", skipped'
) in self._caplog.text
def test_get_devices(self):
assert self.fstab.get_devices() == [
fstab_entry_type(
fstype='ext4',
mountpoint='/',
device_path='/dev/disk/'
'by-uuid/bd604632-663b-4d4c-b5b0-8d8686267ea2',
device_spec='UUID=bd604632-663b-4d4c-b5b0-8d8686267ea2',
options='acl,user_xattr',
dump='0',
fs_passno='1'),
fstab_entry_type(
fstype='swap',
mountpoint='swap',
device_path='/dev/disk/'
'by-uuid/daa5a8c3-5c72-4343-a1d4-bb74ec4e586e',
device_spec='UUID=daa5a8c3-5c72-4343-a1d4-bb74ec4e586e',
options='defaults',
dump='0',
fs_passno='0'),
fstab_entry_type(fstype='vfat',
mountpoint='/boot/efi',
device_path='/dev/disk/by-uuid/FCF7-B051',
device_spec='UUID=FCF7-B051',
options='defaults',
dump='0',
fs_passno='0'),
fstab_entry_type(fstype='xfs',
mountpoint='/boot',
device_path='/dev/disk/by-label/BOOT',
device_spec='LABEL=BOOT',
options='defaults',
dump='0',
fs_passno='0'),
fstab_entry_type(fstype='ext4',
mountpoint='/home',
device_path='/dev/disk/by-label/foo',
device_spec='LABEL=foo',
options='defaults',
dump='0',
fs_passno='0'),
fstab_entry_type(fstype='ext4',
mountpoint='/bar',
device_path='/dev/disk/by-partuuid/3c8bd108-01',
device_spec='PARTUUID=3c8bd108-01',
options='defaults',
dump='0',
fs_passno='0'),
fstab_entry_type(fstype='ext4',
mountpoint='/foo',
device_path='/dev/mynode',
device_spec='/dev/mynode',
options='defaults',
dump='0',
fs_passno='0')
]
def test_export_and_canonical_order(self):
with patch('builtins.open', create=True) as mock_open:
mock_open.return_value = MagicMock(spec=io.IOBase)
self.fstab.export('filename')
file_handle = mock_open.return_value.__enter__.return_value
mock_open.assert_called_once_with('filename', 'w')
assert file_handle.write.call_args_list == [
call('UUID=daa5a8c3-5c72-4343-a1d4-bb74ec4e586e swap '
'swap defaults 0 0\n'),
call('UUID=bd604632-663b-4d4c-b5b0-8d8686267ea2 / '
'ext4 acl,user_xattr 0 1\n'),
call('PARTUUID=3c8bd108-01 /bar ext4 defaults 0 0\n'),
call('LABEL=BOOT /boot xfs defaults 0 0\n'),
call('/dev/mynode /foo ext4 defaults 0 0\n'),
call('LABEL=foo /home ext4 defaults 0 0\n'),
call('UUID=FCF7-B051 /boot/efi vfat defaults 0 0\n')
]