From d67937332094a7d8de8e9bd2e112d30d117c50c0 Mon Sep 17 00:00:00 2001
From: Reid Priedhorsky <1682574+reidpr@users.noreply.github.com>
Date: Tue, 19 Mar 2024 09:31:11 -0600
Subject: [PATCH] PR #1863: --break: nice error if stdin is not a TTY

---
 bin/ch-image.py.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/ch-image.py.in b/bin/ch-image.py.in
index 166cb21ef..4871c90b9 100644
--- a/bin/ch-image.py.in
+++ b/bin/ch-image.py.in
@@ -415,6 +415,8 @@ if (__name__ == "__main__"):
          for (opt, arg) in zip(sys.argv[1:], sys.argv[2:] + [None]):
             (opt, _, arg_eq) = opt.partition("=")
             if (opt == "--break"):
+               if (not sys.stdin.isatty()):
+                  ch.FATAL("--break: standard input must be a terminal")
                if (arg_eq != ""):
                   arg = arg_eq
                try: