From 1c39ed14280c529c97541a87d8044aa5321eb8ad Mon Sep 17 00:00:00 2001
From: lethosor <lethosor@gmail.com>
Date: Sat, 28 Mar 2020 13:18:31 -0400
Subject: [PATCH] Switch tests to headless mode if no TTY detected

---
 travis/run-tests.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/travis/run-tests.py b/travis/run-tests.py
index 9b583ed6b..df62b9f7e 100644
--- a/travis/run-tests.py
+++ b/travis/run-tests.py
@@ -17,6 +17,10 @@ parser.add_argument('--no-quit', action='store_true',
     help='Do not quit DF when done')
 args = parser.parse_args()
 
+if (not sys.stdin.isatty() or not sys.stdout.isatty() or not sys.stderr.isatty()) and not args.headless:
+    print('WARN: no TTY detected, enabling headless mode')
+    args.headless = True
+
 MAX_TRIES = 5
 
 dfhack = 'Dwarf Fortress.exe' if sys.platform == 'win32' else './dfhack'