Show version of language-check itself too

Author: myint

language_check/__init__.py

@@ -41,6 +41,9 @@
 from .which import which
 
 
+__version__ = '0.6.1'
+
+
 __all__ = ['LanguageTool', 'Error', 'get_languages', 'correct', 'get_version',
            'get_directory', 'set_directory']
 

language_check/main.py

@@ -6,6 +6,7 @@
 import re
 import sys
 
+from . import __version__
 from . import get_build_date
 from . import get_version
 from . import LanguageTool
@@ -32,11 +33,13 @@ def parse_args():
                         help='list of rule IDs to be enabled')
     parser.add_argument('--api', action='store_true',
                         help='print results as XML')
-    parser.add_argument('--version', action='version',
-                        version='LanguageTool {} ({})'
-                                .format(get_version(),
-                                        get_build_date()),
-                        help='show LanguageTool version and build date')
+    parser.add_argument(
+        '--version', action='version',
+        version='%(prog)s {} (LanguageTool {} ({}))'.format(
+            __version__,
+            get_version(),
+            get_build_date()),
+        help='show version')
     parser.add_argument('-a', '--apply', action='store_true',
                         help='automatically apply suggestions if available')
     parser.add_argument('-s', '--spell-check-off', dest='spell_check',

setup.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 """Backward-compatible setup script."""
 
+import ast
 import codecs
 import glob
 import os
@@ -131,6 +132,14 @@ def __len__(self):
 python_full_version = sys.version.split()[0]
 
 
+def get_version():
+    """Return version string."""
+    with open('language_check/__init__.py') as input_file:
+        for line in input_file:
+            if line.startswith('__version__'):
+                return ast.parse(line).body[0].value.s
+
+
 def which(program, win_allow_cross_arch=True):
     """Identify the location of an executable file."""
     def is_exe(path):
@@ -301,7 +310,6 @@ def cfg_to_args(config):
     opts_to_args = {
         'metadata': [
             ('name', 'name'),
-            ('version', 'version'),
             ('author', 'author'),
             ('author-email', 'author_email'),
             ('maintainer', 'maintainer'),
@@ -352,6 +360,8 @@ def cfg_to_args(config):
     if 'data_files' in kwargs:
         kwargs['data_files'] = get_data_files(kwargs['data_files'])
 
+    kwargs['version'] = get_version()
+
     return kwargs