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170 lines
4.0 KiB
Python
170 lines
4.0 KiB
Python
"""jc - JSON CLI output utility fstab Parser
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Usage:
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specify --fstab as the first argument if the piped input is coming from a fstab file
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Compatibility:
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'linux'
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Examples:
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$ cat /etc/fstab | jc --fstab -p
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[
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{
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"fs_spec": "/dev/mapper/centos-root",
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"fs_file": "/",
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"fs_vfstype": "xfs",
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"fs_mntops": "defaults",
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"fs_freq": 0,
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"fs_passno": 0
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},
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{
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"fs_spec": "UUID=05d927bb-5875-49e3-ada1-7f46cb31c932",
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"fs_file": "/boot",
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"fs_vfstype": "xfs",
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"fs_mntops": "defaults",
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"fs_freq": 0,
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"fs_passno": 0
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},
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{
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"fs_spec": "/dev/mapper/centos-swap",
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"fs_file": "swap",
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"fs_vfstype": "swap",
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"fs_mntops": "defaults",
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"fs_freq": 0,
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"fs_passno": 0
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}
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]
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$ cat /etc/fstab | jc --fstab -p -r
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[
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{
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"fs_spec": "/dev/mapper/centos-root",
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"fs_file": "/",
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"fs_vfstype": "xfs",
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"fs_mntops": "defaults",
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"fs_freq": "0",
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"fs_passno": "0"
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},
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{
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"fs_spec": "UUID=05d927bb-5875-49e3-ada1-7f46cb31c932",
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"fs_file": "/boot",
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"fs_vfstype": "xfs",
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"fs_mntops": "defaults",
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"fs_freq": "0",
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"fs_passno": "0"
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},
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{
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"fs_spec": "/dev/mapper/centos-swap",
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"fs_file": "swap",
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"fs_vfstype": "swap",
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"fs_mntops": "defaults",
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"fs_freq": "0",
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"fs_passno": "0"
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}
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]
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"""
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import jc.utils
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class info():
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version = '1.0'
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description = '/etc/fstab file parser'
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author = 'Kelly Brazil'
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author_email = 'kellyjonbrazil@gmail.com'
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details = None
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# compatible options: linux, darwin, cygwin, win32, aix, freebsd
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compatible = ['linux']
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def process(proc_data):
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"""
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Final processing to conform to the schema.
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Parameters:
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proc_data: (dictionary) raw structured data to process
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Returns:
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dictionary structured data with the following schema:
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[
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{
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"fs_spec": string,
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"fs_file": string,
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"fs_vfstype": string,
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"fs_mntops": string,
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"fs_freq": integer,
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"fs_passno": integer
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}
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]
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"""
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for entry in proc_data:
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int_list = ['fs_freq', 'fs_passno']
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for key in int_list:
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if key in entry:
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try:
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key_int = int(entry[key])
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entry[key] = key_int
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except (ValueError):
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entry[key] = None
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return proc_data
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def parse(data, raw=False, quiet=False):
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"""
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Main text parsing function
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Parameters:
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data: (string) text data to parse
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raw: (boolean) output preprocessed JSON if True
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quiet: (boolean) suppress warning messages if True
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Returns:
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dictionary raw or processed structured data
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"""
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if not quiet:
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jc.utils.compatibility(__name__, info.compatible)
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raw_output = []
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cleandata = data.splitlines()
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# Clear any blank lines
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cleandata = list(filter(None, cleandata))
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if cleandata:
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for line in cleandata:
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output_line = {}
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# ignore commented lines
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if line.strip().find('#') == 0:
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continue
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line_list = line.split(maxsplit=6)
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fs_spec = line_list[0]
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fs_file = line_list[1]
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fs_vfstype = line_list[2]
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fs_mntops = line_list[3]
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fs_freq = line_list[4]
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fs_passno = line_list[5]
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output_line['fs_spec'] = fs_spec
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output_line['fs_file'] = fs_file
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output_line['fs_vfstype'] = fs_vfstype
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output_line['fs_mntops'] = fs_mntops
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output_line['fs_freq'] = fs_freq
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output_line['fs_passno'] = fs_passno
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raw_output.append(output_line)
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if raw:
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return raw_output
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else:
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return process(raw_output)
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