Improve versioning

README.md

@@ -44,7 +44,7 @@ or simply run `./bin/kconfig-hardened-check` from the cloned repository.
 ## Usage
 ```
 usage: kconfig-hardened-check [-h] [-p {X86_64,X86_32,ARM64,ARM}] [-c CONFIG]
-                              [--debug] [--json]
+                              [--debug] [--json] [--version]
 
 Checks the hardening options in the Linux kernel config
 
@@ -56,6 +56,7 @@ optional arguments:
                         check the config_file against these preferences
   --debug               enable verbose debug mode
   --json                print results in JSON format
+  --version             show program's version number and exit
 ```
 
 ## Output for `Ubuntu 18.04 (Bionic Beaver with HWE)` kernel config
@@ -215,9 +216,7 @@ I usually update the kernel hardening recommendations after each Linux kernel re
 
 So the version of `kconfig-hardened-check` is associated with the corresponding version of the kernel.
 
-The version format is: __[major_number].[kernel_version]__
-
-The current version of `kconfig-hardened-check` is __0.5.5__, it's marked with the git tag.
+The version format is: __[major_number].[kernel_version].[kernel_patchlevel]__
 
 
 ## Questions and answers

kconfig_hardened_check/__about__.py

+__version__ = '0.5.5'

kconfig_hardened_check/__init__.py

@@ -59,6 +59,7 @@ from argparse import ArgumentParser
 from collections import OrderedDict
 import re
 import json
+from .__about__ import __version__
 
 # debug_mode enables:
 #    - reporting about unknown kernel options in the config,
@@ -603,7 +604,8 @@ def main():
 
     config_checklist = []
 
-    parser = ArgumentParser(description='Checks the hardening options in the Linux kernel config')
+    parser = ArgumentParser(prog='kconfig-hardened-check',
+                            description='Checks the hardening options in the Linux kernel config')
     parser.add_argument('-p', '--print', choices=supported_archs,
                         help='print hardening preferences for selected architecture')
     parser.add_argument('-c', '--config',
@@ -612,6 +614,7 @@ def main():
                         help='enable verbose debug mode')
     parser.add_argument('--json', action='store_true',
                         help='print results in JSON format')
+    parser.add_argument('--version', action='version', version='%(prog)s ' + __version__)
     args = parser.parse_args()
 
     if args.debug:

setup.cfg

 [metadata]
 name = kconfig-hardened-check
-version = 0.5.5
 author = Alexander Popov
 author_email = alex.popov@linux.com
 home-page = https://github.com/a13xp0p0v/kconfig-hardened-check

setup.py

@@ -2,4 +2,11 @@
 
 from setuptools import setup
 
-setup()
+about = {}
+with open("kconfig_hardened_check/__about__.py") as f:
+    exec(f.read(), about)
+
+print('v: "{}"'.format(about['__version__']))
+
+# See the options in setup.cfg
+setup(version = about['__version__'])