From 77ee2d36a8d72341c50919c95dde14496b12a85b Mon Sep 17 00:00:00 2001
From: Andrei Homescu <ah@immunant.com>
Date: Tue, 18 Nov 2025 19:21:38 -0800
Subject: [PATCH] Add index to name of refactor diff files to keep track of
 order of application

---
 tests/templates.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tests/templates.py b/tests/templates.py
index 478b2b5..820f675 100644
--- a/tests/templates.py
+++ b/tests/templates.py
@@ -63,9 +63,16 @@
 rm -rf "$ARTIFACT_DIR"
 mkdir -p "$ARTIFACT_DIR"
 
+diff_idx=0
 while IFS= read -r transform; do
     [[ -z "$transform" ]] && continue
-    DIFF_FILE="$ARTIFACT_DIR/${transform}.diff"
+
+    # Print the index in 4 digit format with leading zeroes,
+    # so the indices align just like in git outputs
+    diff_idx4=`printf "%04d" "${diff_idx}"`
+    : $((diff_idx++))
+
+    DIFF_FILE="$ARTIFACT_DIR/${diff_idx4}_${transform}.diff"
 
     c2rust-refactor \
         ${transform} \