fix #55. where tmuxp would crash with letter version Version 0.1.7.

CHANGES

@@ -4,6 +4,14 @@ Changelog
 
 Here you can find the recent changes to tmuxp.
 
+0.1.7
+-----
+
+- [cli] [test]:  Fix `Issue #55`_ where tmuxp would crash with letter
+  numbers in version. Write tests.
+
+.. _Issue #55: https://github.com/tony/tmuxp/issues/55
+
 0.1.6
 -----
 

tmuxp/__init__.py

@@ -13,7 +13,7 @@
 
 __title__ = 'tmuxp'
 __package_name__ = 'tmuxp'
-__version__ = '0.1.6'
+__version__ = '0.1.7'
 __description__ = 'Manage tmux sessions thru JSON, YAML configs. Features Python API'
 __email__ = 'tony@git-pull.com'
 __author__ = 'Tony Narlock'

tmuxp/testsuite/cli.py

@@ -25,6 +25,11 @@
 TMUXP_DIR = os.path.join(os.path.dirname(__file__), '.tmuxp')
 
 
+class CLIVersion(TestCase):
+
+    pass
+
+
 class StartupTest(TestCase):
 
     """test startup_cli()."""

tmuxp/testsuite/util.py

@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+"""Tests for utility functions in tmux.
+
+tmuxp.tests.util
+~~~~~~~~~~~~~~~~
+
+"""
+
+from __future__ import absolute_import, division, print_function, \
+    with_statement, unicode_literals
+
+import random
+import logging
+import unittest
+
+from .. import exc
+from ..util import has_required_tmux_version
+
+from .helpers import TmuxTestCase
+
+logger = logging.getLogger(__name__)
+
+
+class TmuxVersionTest(TmuxTestCase):
+
+    """Test the :meth:`has_required_tmux_version`."""
+
+    def test_no_arg_uses_tmux_version(self):
+        result = has_required_tmux_version()
+        self.assertRegexpMatches(result, r'[0-9]\.[0-9]')
+
+    def test_ignores_letter_versions(self):
+        """Ignore letters such as 1.8b.
+
+        See ticket https://github.com/tony/tmuxp/issues/55.
+
+        In version 0.1.7 this is adjusted to use LooseVersion, in order to
+        allow letters.
+
+        """
+        result = has_required_tmux_version('1.9a')
+        self.assertRegexpMatches(result, r'[0-9]\.[0-9]')
+
+        result = has_required_tmux_version('1.8a')
+        self.assertEqual(result, r'1.8')
+
+    def test_error_version_less_1_7(self):
+        with self.assertRaisesRegexp(exc.TmuxpException, 'tmuxp only supports'):
+            has_required_tmux_version('1.7')
+
+        with self.assertRaisesRegexp(exc.TmuxpException, 'tmuxp only supports'):
+            has_required_tmux_version('1.6a')
+
+        has_required_tmux_version('1.9a')
+
+
+def suite():
+    suite = unittest.TestSuite()
+    suite.addTest(unittest.makeSuite(TmuxVersionTest))
+    return suite

tmuxp/util.py

@@ -11,6 +11,7 @@
 import unittest
 import collections
 import subprocess
+import re
 import os
 import sys
 import logging
@@ -263,14 +264,25 @@ def is_version(version):
     return StrictVersion(installed_version) == StrictVersion(version)
 
 
-def has_required_tmux_version():
-    """Return if tmux meets version requirement. Version >1.8 or above."""
-    proc = tmux('-V')
+def has_required_tmux_version(version=None):
+    """Return if tmux meets version requirement. Version >1.8 or above.
 
-    if proc.stderr:
-        raise exc.TmuxpException(proc.stderr)
+    :versionchanged: 0.1.7
+        Versions will now remove trailing letters per `Issue 55`_.
+
+        .. _Issue 55: https://github.com/tony/tmuxp/issues/55.
+
+    """
+
+    if not version:
+        proc = tmux('-V')
+
+        if proc.stderr:
+            raise exc.TmuxpException(proc.stderr)
+
+        version = proc.stdout[0].split('tmux ')[1]
 
-    version = proc.stdout[0].split('tmux ')[1]
+    version = re.sub(r'[a-z]', '', version)
 
     if StrictVersion(version) <= StrictVersion("1.7"):
         raise exc.TmuxpException(