From 798a35a7b3d77aa83b093e87773f8ca85c1af2e3 Mon Sep 17 00:00:00 2001
From: =?utf8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
Date: Sat, 26 Jul 2025 20:06:42 +0100
Subject: [PATCH] maint: avoid :> pattern in tests

This was seen to trigger the EXIT trap on cygwin

* cfg.mk (sc_prohibit_colon_redirection): Disallow all
cases of :> in tests/
* tests/cksum/md5sum-bsd.sh: Adjust to avoid more
stringent syntax check.
---
 cfg.mk                    | 5 +++--
 tests/cksum/md5sum-bsd.sh | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/cfg.mk b/cfg.mk
index 96aac60378..56c70f244d 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -144,9 +144,10 @@ sc_ensure_gl_diffs_apply_cleanly:
 	done
 
 # Avoid :>file which doesn't propagate errors
+# Also  :>file was seen to trigger EXIT trap on cygwin
 sc_prohibit_colon_redirection:
-	@cd $(srcdir)/tests && GIT_PAGER= git grep -En ': *>.*\|\|'	\
-	  && { echo '$(ME): '"The leading colon in :> will hide errors" >&2; \
+	@cd $(srcdir)/tests && GIT_PAGER= git grep -En ': *>[^>]'	\
+	  && { echo '$(ME): '":> will hide errors or may trigger EXIT" >&2; \
 	       exit 1; }  \
 	  || :
 
diff --git a/tests/cksum/md5sum-bsd.sh b/tests/cksum/md5sum-bsd.sh
index 1f80ccbe1c..4986f01444 100755
--- a/tests/cksum/md5sum-bsd.sh
+++ b/tests/cksum/md5sum-bsd.sh
@@ -78,7 +78,7 @@ if echo '' > 'backslash\is\not\dir\sep'; then
   t='	'
   rm check.md5
   for i in 'a\b' 'a\' '\a' "a${nl}b" "a${t}b"; do
-    : > "$i"
+    rm -f "$i" && touch "$i"
     md5sum --tag "$i" >> check.md5 || fail=1
   done
   md5sum --strict -c check.md5 > out || fail=1
-- 
2.47.2