From 102d15cda73fada338c1b295ef5bdfd26d27dbfb Mon Sep 17 00:00:00 2001
From: Taylor Eernisse <teernisse@visiostack.com>
Date: Sun, 8 Feb 2026 15:23:18 -0500
Subject: [PATCH] Fix sed portability: use temp file instead of sed -i
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BSD sed (macOS) and GNU sed (Linux) interpret `sed -i ''`
differently — GNU treats the empty string as the script
argument, not the backup suffix. Replace with portable
sed-to-tmpfile-and-mv pattern.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 plan-refine | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plan-refine b/plan-refine
index 5aa678b..e155d4f 100755
--- a/plan-refine
+++ b/plan-refine
@@ -36,7 +36,7 @@ set_frontmatter() {
         mv "$tmp" "$file"; return
     fi
     if grep -q "^${key}:" "$file"; then
-        sed -i '' "s|^${key}:.*|${key}: ${value}|" "$file"
+        sed "s|^${key}:.*|${key}: ${value}|" "$file" > "${file}.tmp" && mv "${file}.tmp" "$file"
     else
         awk -v key="$key" -v val="$value" '
             BEGIN { count=0; inserted=0 }