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jc/jc/parsers/rpm_qi.py

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Python

"""jc - JSON CLI output utility `rpm -qi` command output parser
Works with `rpm -qi [package]` or `rpm -qia`.
The `build_epoch` calculated timestamp field is naive (i.e. based on the local time of the system the parser is run on)
The `build_epoch_utc` calculated timestamp field is timezone-aware and is only available if the timezone field is UTC.
Usage (cli):
$ rpm -qia | jc --rpm-qi
or
$ jc rpm -qia
Usage (module):
import jc.parsers.rpm_qi
result = jc.parsers.rpm_qi.parse(rpm_qi_command_output)
Schema:
[
{
"name": string,
"epoch": integer,
"version": string,
"release": string,
"architecture": string,
"install_date": string,
"group": string,
"size": integer,
"license": string,
"signature": string,
"source_rpm": string,
"build_date": string,
"build_epoch": integer, # naive timestamp
"build_epoch_utc": integer, # Aware timestamp if timezone is UTC
"build_host": string,
"relocations": string,
"packager": string,
"vendor": string,
"url": string,
"summary": string,
"description": string
}
]
Examples:
$ rpm -qia | jc --rpm-qi -p
[
{
"name": "make",
"epoch": 1,
"version": "3.82",
"release": "24.el7",
"architecture": "x86_64",
"install_date": "Wed 16 Oct 2019 09:21:42 AM PDT",
"group": "Development/Tools",
"size": 1160660,
"license": "GPLv2+",
"signature": "RSA/SHA256, Thu 22 Aug 2019 02:34:59 PM PDT, Key ID 24c6a8a7f4a80eb5",
"source_rpm": "make-3.82-24.el7.src.rpm",
"build_date": "Thu 08 Aug 2019 05:47:25 PM PDT",
"build_host": "x86-01.bsys.centos.org",
"relocations": "(not relocatable)",
"packager": "CentOS BuildSystem <http://bugs.centos.org>",
"vendor": "CentOS",
"url": "http://www.gnu.org/software/make/",
"summary": "A GNU tool which simplifies the build process for users",
"description": "A GNU tool for controlling the generation of executables and other non-source...",
"build_epoch": 1565311645,
"build_epoch_utc": null
},
{
"name": "kbd-legacy",
"version": "1.15.5",
"release": "15.el7",
"architecture": "noarch",
"install_date": "Thu 15 Aug 2019 10:53:08 AM PDT",
"group": "System Environment/Base",
"size": 503608,
"license": "GPLv2+",
"signature": "RSA/SHA256, Mon 12 Nov 2018 07:17:49 AM PST, Key ID 24c6a8a7f4a80eb5",
"source_rpm": "kbd-1.15.5-15.el7.src.rpm",
"build_date": "Tue 30 Oct 2018 03:40:00 PM PDT",
"build_host": "x86-01.bsys.centos.org",
"relocations": "(not relocatable)",
"packager": "CentOS BuildSystem <http://bugs.centos.org>",
"vendor": "CentOS",
"url": "http://ftp.altlinux.org/pub/people/legion/kbd",
"summary": "Legacy data for kbd package",
"description": "The kbd-legacy package contains original keymaps for kbd package. Please note...",
"build_epoch": 1540939200,
"build_epoch_utc": null
},
...
]
$ rpm -qia | jc --rpm-qi -p -r
[
{
"name": "make",
"epoch": "1",
"version": "3.82",
"release": "24.el7",
"architecture": "x86_64",
"install_date": "Wed 16 Oct 2019 09:21:42 AM PDT",
"group": "Development/Tools",
"size": "1160660",
"license": "GPLv2+",
"signature": "RSA/SHA256, Thu 22 Aug 2019 02:34:59 PM PDT, Key ID 24c6a8a7f4a80eb5",
"source_rpm": "make-3.82-24.el7.src.rpm",
"build_date": "Thu 08 Aug 2019 05:47:25 PM PDT",
"build_host": "x86-01.bsys.centos.org",
"relocations": "(not relocatable)",
"packager": "CentOS BuildSystem <http://bugs.centos.org>",
"vendor": "CentOS",
"url": "http://www.gnu.org/software/make/",
"summary": "A GNU tool which simplifies the build process for users",
"description": "A GNU tool for controlling the generation of executables and other..."
},
{
"name": "kbd-legacy",
"version": "1.15.5",
"release": "15.el7",
"architecture": "noarch",
"install_date": "Thu 15 Aug 2019 10:53:08 AM PDT",
"group": "System Environment/Base",
"size": "503608",
"license": "GPLv2+",
"signature": "RSA/SHA256, Mon 12 Nov 2018 07:17:49 AM PST, Key ID 24c6a8a7f4a80eb5",
"source_rpm": "kbd-1.15.5-15.el7.src.rpm",
"build_date": "Tue 30 Oct 2018 03:40:00 PM PDT",
"build_host": "x86-01.bsys.centos.org",
"relocations": "(not relocatable)",
"packager": "CentOS BuildSystem <http://bugs.centos.org>",
"vendor": "CentOS",
"url": "http://ftp.altlinux.org/pub/people/legion/kbd",
"summary": "Legacy data for kbd package",
"description": "The kbd-legacy package contains original keymaps for kbd package..."
},
...
]
"""
import jc.utils
class info():
"""Provides parser metadata (version, author, etc.)"""
version = '1.1'
description = '`rpm -qi` command parser'
author = 'Kelly Brazil'
author_email = 'kellyjonbrazil@gmail.com'
# details = 'enter any other details here'
# compatible options: linux, darwin, cygwin, win32, aix, freebsd
compatible = ['linux']
magic_commands = ['rpm -qi', 'rpm -qia', 'rpm -qai']
__version__ = info.version
def _process(proc_data):
"""
Final processing to conform to the schema.
Parameters:
proc_data: (List of Dictionaries) raw structured data to process
Returns:
List of Dictionaries. Structured data to conform to the schema.
"""
for entry in proc_data:
int_list = ['epoch', 'size']
for key in int_list:
if key in entry:
try:
entry[key] = int(entry[key])
except (ValueError):
entry[key] = None
if 'build_date' in entry:
timestamp = jc.utils.timestamp(entry['build_date'])
entry['build_epoch'] = timestamp.naive
entry['build_epoch_utc'] = timestamp.utc
return proc_data
def parse(data, raw=False, quiet=False):
"""
Main text parsing function
Parameters:
data: (string) text data to parse
raw: (boolean) output preprocessed JSON if True
quiet: (boolean) suppress warning messages if True
Returns:
List of Dictionaries. Raw or processed structured data.
"""
if not quiet:
jc.utils.compatibility(__name__, info.compatible)
raw_output = []
entry_obj = {}
last_entry = None
this_entry = None
desc_entry = False
description = []
if jc.utils.has_data(data):
for line in filter(None, data.splitlines()):
split_line = line.split(': ', maxsplit=1)
if split_line[0].startswith('Name') and len(split_line) == 2:
this_entry = split_line[1].strip()
if this_entry != last_entry:
if entry_obj:
if description:
entry_obj['description'] = ' '.join(description)
raw_output.append(entry_obj)
entry_obj = {}
last_entry = this_entry
desc_entry = False
if len(split_line) == 2:
entry_obj[split_line[0].strip().lower().replace(' ', '_')] = split_line[1].strip()
if line.startswith('Description :'):
desc_entry = True
description = []
continue
if desc_entry:
description.append(line)
if entry_obj:
if description:
entry_obj['description'] = ' '.join(description)
raw_output.append(entry_obj)
if raw:
return raw_output
else:
return _process(raw_output)