Add --version argument

* namcap --version or namcap -v prints the version and exits
* Update manpage with the the new option
* Add a test that the manpage version is the same as the program version

Signed-off-by: Kyle Keen <keenerd@gmail.com>

3 files changed, 48 insertions, 2 deletions

diff --git a/Namcap/tests/test_version.py b/Namcap/tests/test_version.py
new file mode 100644
index 0000000..3a7e685
--- /dev/null
+++ b/Namcap/tests/test_version.py
@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+#
+# namcap tests - tests for the version module
+# Copyright (C) 2015 Rikard Falkeborn <rikard.falkeborn@gmail.com>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+#   USA
+#
+
+import os
+import unittest
+import re
+import Namcap.version
+
+
+class VersionTests(unittest.TestCase):
+	def test_manpage(self):
+		''' Test that the manpage and program has the same version.'''
+		here = os.path.dirname(os.path.realpath(__file__))
+		with open(os.path.join(here, '..', '..', 'namcap.1')) as f:
+			first_line = f.readline()
+		match = re.search('"namcap (.*?)"', first_line)
+		self.assertEqual(match.group(1), Namcap.version.get_version())
+
+# vim: set ts=4 sw=4 noet:
diff --git a/namcap.1 b/namcap.1
index 378e7ae..ace6fa6 100644
--- a/namcap.1
+++ b/namcap.1
@@ -26,6 +26,9 @@ displays easily parseable namcap tags instead of the normal human readable descr
 only apply RULELIST rules to the package
 .IP
 RULELIST is a comma-separated list of rule names
+.TP
+.B "\-v, \-\-version"
+print version and exit
 .SH RULES
 .TP
 .B arrays
diff --git a/namcap.py b/namcap.py
index cca5dd6..b62a2fa 100755
--- a/namcap.py
+++ b/namcap.py
@@ -31,6 +31,7 @@ import types
 
 import Namcap.depends
 import Namcap.tags
+import Namcap.version
 
 # Functions
 def get_modules():
@@ -49,6 +50,7 @@ def usage():
 	print("    -e rulelist, --exclude=rulelist  : don't apply RULELIST rules to the package")
 	print("    -r rulelist, --rules=rulelist    : only apply RULELIST rules to the package")
 	print("    -t tags                          : use a custom tag file")
+	print("    -v version                       : print version and exit")
 
 	sys.exit(2)
 
@@ -171,9 +173,9 @@ filename = None
 
 # get our options and process them
 try:
-	optlist, args = getopt.getopt(sys.argv[1:], "ihmr:e:t:L",
+	optlist, args = getopt.getopt(sys.argv[1:], "ihmr:e:t:Lv",
 			["info", "help", "machine-readable", "rules=",
-				"exclude=", "tags=", "list"])
+				"exclude=", "tags=", "list", "version"])
 except getopt.GetoptError:
 	usage()
 
@@ -222,6 +224,10 @@ for i, k in optlist:
 	if i in ('-t', '--tags'):
 		filename = k
 
+	if i in ('-v', '--version'):
+		print(Namcap.version.get_version())
+		sys.exit(0)
+
 # If there are no args, print usage
 if (args == []):
 	usage()