From 51a5949be11132f91655ed07b90ec60b8d1d06bd Mon Sep 17 00:00:00 2001
From: Maor Hamami <hamamimaor@microsoft.com>
Date: Fri, 6 Mar 2026 10:28:18 +0200
Subject: [PATCH] [windows] use truncate instead of rm to avoid file in use
 error + remove \r to avoid crlf diff

---
 btest         | 2 +-
 btest-bg-wait | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/btest b/btest
index d63c410..1799bb4 100755
--- a/btest
+++ b/btest
@@ -1188,7 +1188,7 @@ class Test:
                 error(f"cannot write test's additional file '{fname}'")
 
             for line in lines:
-                ffile.write(line)
+                ffile.write(line.replace("\r\n", "\n"))
 
             ffile.close()
 
diff --git a/btest-bg-wait b/btest-bg-wait
index e8437af..ed06a00 100755
--- a/btest-bg-wait
+++ b/btest-bg-wait
@@ -85,7 +85,11 @@ function kill_procs {
 }
 
 function collect_output {
-    rm -f .stdout .stderr
+    # Truncate rather than rm: on Windows the parent process (btest)
+    # still holds these files open and rm would fail with EBUSY.
+    # Truncation is allowed because btest opens them with write-sharing.
+    : >.stdout
+    : >.stderr
 
     if [ $timeout_ok != 1 ] && [ -s .timeout ]; then
         {