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initial findmnt parser

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Kelly Brazil
2022-10-31 17:22:56 -07:00
parent 5e22f9e2bd
commit 50da124ea7
3 changed files with 169 additions and 0 deletions
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1
jc/lib.py
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@ -38,6 +38,7 @@ parsers: List[str] = [
'email-address', 'email-address',
'env', 'env',
'file', 'file',
'findmnt',
'finger', 'finger',
'free', 'free',
'fstab', 'fstab',

135
jc/parsers/findmnt.py Normal file
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@ -0,0 +1,135 @@
"""jc - JSON Convert `findmnt` command output parser
<<Short findmnt description and caveats>>
Usage (cli):
$ findmnt | jc --findmnt
or
$ jc findmnt
Usage (module):
import jc
result = jc.parse('findmnt', findmnt_command_output)
Schema:
[
{
"findmnt": string,
"bar": boolean,
"baz": integer
}
]
Examples:
$ findmnt | jc --findmnt -p
[]
$ findmnt | jc --findmnt -p -r
[]
"""
import re
from typing import List, Dict
from jc.jc_types import JSONDictType
from jc.parsers.universal import simple_table_parse
import jc.utils
class info():
"""Provides parser metadata (version, author, etc.)"""
version = '1.0'
description = '`findmnt` command parser'
author = 'Kelly Brazil'
author_email = 'kellyjonbrazil@gmail.com'
compatible = ['linux']
magic_commands = ['findmnt']
__version__ = info.version
def _process(proc_data: List[JSONDictType]) -> List[JSONDictType]:
"""
Final processing to conform to the schema.
Parameters:
proc_data: (List of Dictionaries) raw structured data to process
Returns:
List of Dictionaries. Structured to conform to the schema.
"""
# split normal options and k/v options
for item in proc_data:
reg_options = []
kv_options = {}
if 'options' in item:
opt_list = item['options'].split(',') # type: ignore
for option in opt_list:
if '=' in option:
k, v = option.split('=', maxsplit=1)
kv_options[k] = v
else:
reg_options.append(option)
if reg_options:
item['options'] = reg_options
if kv_options:
item['kv_options'] = kv_options
return proc_data
def _replace(matchobj):
if matchobj:
matchlen = len(matchobj.group(1))
return ' ' * matchlen + '/'
def parse(
data: str,
raw: bool = False,
quiet: bool = False
) -> List[JSONDictType]:
"""
Main text parsing function
Parameters:
data: (string) text data to parse
raw: (boolean) unprocessed output if True
quiet: (boolean) suppress warning messages if True
Returns:
List of Dictionaries. Raw or processed structured data.
"""
jc.utils.compatibility(__name__, info.compatible, quiet)
jc.utils.input_type_check(data)
raw_output: List[Dict] = []
table: List[str] = []
if jc.utils.has_data(data):
for line in filter(None, data.splitlines()):
# remove initial drawing characters
line = re.sub(r'^([│ ├─└─|`-]+)/', _replace, line, count=1)
table.append(line)
table[0] = table[0].lower()
raw_output = simple_table_parse(table)
return raw_output if raw else _process(raw_output)

33
tests/fixtures/centos-7.7/findmnt.out vendored Normal file
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@ -0,0 +1,33 @@
TARGET SOURCE FSTYPE OPTIONS
/ /dev/mapper/centos-root xfs rw,relatime,seclabel,attr2,inode64,noquota
├─/sys sysfs sysfs rw,nosuid,nodev,noexec,relatime,seclabel
│ ├─/sys/kernel/security securityfs securityfs rw,nosuid,nodev,noexec,relatime
│ ├─/sys/fs/cgroup tmpfs tmpfs ro,nosuid,nodev,noexec,seclabel,mode=755
│ │ ├─/sys/fs/cgroup/systemd cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd
│ │ ├─/sys/fs/cgroup/net_cls,net_prio cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,net_prio,net_cls
│ │ ├─/sys/fs/cgroup/blkio cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,blkio
│ │ ├─/sys/fs/cgroup/devices cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,devices
│ │ ├─/sys/fs/cgroup/hugetlb cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,hugetlb
│ │ ├─/sys/fs/cgroup/cpuset cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,cpuset
│ │ ├─/sys/fs/cgroup/cpu,cpuacct cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,cpuacct,cpu
│ │ ├─/sys/fs/cgroup/memory cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,memory
│ │ ├─/sys/fs/cgroup/perf_event cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,perf_event
│ │ ├─/sys/fs/cgroup/freezer cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,freezer
│ │ └─/sys/fs/cgroup/pids cgroup cgroup rw,nosuid,nodev,noexec,relatime,seclabel,pids
│ ├─/sys/fs/pstore pstore pstore rw,nosuid,nodev,noexec,relatime
│ ├─/sys/kernel/config configfs configfs rw,relatime
│ ├─/sys/fs/selinux selinuxfs selinuxfs rw,relatime
│ └─/sys/kernel/debug debugfs debugfs rw,relatime
├─/proc proc proc rw,nosuid,nodev,noexec,relatime
│ └─/proc/sys/fs/binfmt_misc systemd-1 autofs rw,relatime,fd=36,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13995
├─/dev devtmpfs devtmpfs rw,nosuid,seclabel,size=1918816k,nr_inodes=479704,mode=755
│ ├─/dev/shm tmpfs tmpfs rw,nosuid,nodev,seclabel
│ ├─/dev/pts devpts devpts rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000
│ ├─/dev/mqueue mqueue mqueue rw,relatime,seclabel
│ └─/dev/hugepages hugetlbfs hugetlbfs rw,relatime,seclabel
├─/run tmpfs tmpfs rw,nosuid,nodev,seclabel,mode=755
│ ├─/run/user/0 tmpfs tmpfs rw,nosuid,nodev,relatime,seclabel,size=386136k,mode=700
│ └─/run/user/1000 tmpfs tmpfs rw,nosuid,nodev,relatime,seclabel,size=386136k,mode=700,uid=1000,gid=1000
├─/boot /dev/sda1 xfs rw,relatime,seclabel,attr2,inode64,noquota
├─/var/lib/docker/containers /dev/mapper/centos-root[/var/lib/docker/containers] xfs rw,relatime,seclabel,attr2,inode64,noquota
└─/var/lib/docker/overlay2 /dev/mapper/centos-root[/var/lib/docker/overlay2] xfs rw,relatime,seclabel,attr2,inode64,noquota