"""
DumpE2FS - Command ``dumpe2fs -h``
==================================
This parser handles ``dumpe2fs`` output.
The object provides access to this data using a dictionary. Particular keys
are stored as lists:
* Filesystem features
* Filesystem flags
* Default mount options
Other keys are stored as strings. The name of the device is stored in the
``dev_name`` property.
Typical contents of the ``/sbin/dumpe2fs -h /dev/device`` command::
dumpe2fs 1.41.12 (17-May-2010)
Filesystem volume name: <none>
Last mounted on: /usr
Filesystem UUID: 1b332c5d-2410-4934-9118-466f8a14841f
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Examples:
>>> e2fs = shared[DumpE2fs]
>>> e2fs.dev_name
'/dev/device'
>>> e2fs['Filesystem volume name']
'<none>'
>>> e2fs['Last mounted on']
'/usr'
>>> e2fs['Filesystem UUID']
'1b332c5d-2410-4934-9118-466f8a14841f'
>>> e2fs['Filesystem magic number']
'0xEF53'
>>> e2fs['Filesystem revision #']
'1 (dynamic)'
>>> e2fs['Filesystem features']
['has_journal', 'ext_attr', 'resize_inode', 'dir_index', 'filetype',
'needs_recovery', 'extent', 'flex_bg', 'sparse_super', 'large_file',
'huge_file', 'uninit_bg', 'dir_nlink', 'extra_isize'],
>>> e2fs['Filesystem flags']
['signed_directory_hash']
>>> e2fs['Default mount options']
['user_xattr', 'acl']
"""
from .. import parser, LegacyItemAccess, CommandParser
from insights.specs import Specs
COMPOUND_FIELDS = ['Filesystem features', 'Filesystem flags', 'Default mount options']
[docs]
@parser(Specs.dumpe2fs_h)
class DumpE2fs(CommandParser, LegacyItemAccess):
"""
Parse each line in the output of the ``dumpe2fs`` command.
"""
[docs]
def parse_content(self, content):
dumpe2fs_values_dict = {}
for line in content:
if ":" in line:
key, value = line.split(":", 1)
if key in COMPOUND_FIELDS:
dumpe2fs_values_dict[key] = list(value.strip().split())
else:
dumpe2fs_values_dict[key] = value.strip()
self.dev_name = self.file_name.split('dumpe2fs_-h_')[-1].replace('.', '/')
self.data = dumpe2fs_values_dict