Only set title if DISPLAY is set, change os x behavior to check DISPLAY.

rtv/__main__.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import os
 import sys
 import locale
 import logging
@@ -29,16 +30,17 @@ _logger = logging.getLogger(__name__)
 
 
 def main():
-    "Main entry point"
+    """Main entry point"""
 
     # Squelch SSL warnings
     logging.captureWarnings(True)
     locale.setlocale(locale.LC_ALL, '')
 
     # Set the terminal title
-    title = 'rtv {0}'.format(__version__)
-    sys.stdout.write('\x1b]2;{0}\x07'.format(title))
-    sys.stdout.flush()
+    if os.getenv('DISPLAY'):
+        title = 'rtv {0}'.format(__version__)
+        sys.stdout.write('\x1b]2;{0}\x07'.format(title))
+        sys.stdout.flush()
 
     args = Config.get_args()
     fargs, bindings = Config.get_file(args.get('config'))
@@ -79,6 +81,14 @@ def main():
             filename=config['log'],
             format='%(asctime)s:%(levelname)s:%(filename)s:%(lineno)d:%(message)s')
         _logger.info('Starting new session, RTV v%s', __version__)
+        env = [
+            ('$DISPLAY', os.getenv('DISPLAY')),
+            ('$XDG_CONFIG_HOME', os.getenv('XDG_CONFIG_HOME')),
+            ('$BROWSER', os.getenv('BROWSER')),
+            ('$PAGER', os.getenv('PAGER')),
+            ('$RTV_EDITOR', os.getenv('RTV_EDITOR')),
+            ('$RTV_URLVIEWER', os.getenv('RTV_URLVIEWER'))]
+        _logger.info('Environment: %s', env)
     else:
         # Add an empty handler so the logger doesn't complain
         logging.root.addHandler(logging.NullHandler())