tuna: Don't start the gui if a display is not available
This is intended for the getopt branch of tuna
Don't start the gui if a display is not available.
Signed-off-by: John Kacur <jkacur@redhat.com>
diff --git a/tuna-cmd.py b/tuna-cmd.py
index 38e7017..ff2920f 100755
--- a/tuna-cmd.py
+++ b/tuna-cmd.py
@@ -821,6 +821,12 @@
sys.exit(2)
if run_gui:
+ # Don't try to start the gui if no display is available
+ display = os.getenv("DISPLAY")
+ if not display:
+ usage()
+ return
+
try:
from tuna import tuna_gui
except ImportError:
