From 557967fa1e0d18205892c364f1a208647e35aad0 Mon Sep 17 00:00:00 2001
From: Mario Zechner <badlogicgames@gmail.com>
Date: Wed, 16 Jul 2025 04:47:17 +0200
Subject: [PATCH] Batch files for Docker clang-format to improve performance

---
 formatters/format-cpp.sh | 44 ++++++++++++++++++++++++----------------
 1 file changed, 27 insertions(+), 17 deletions(-)

diff --git a/formatters/format-cpp.sh b/formatters/format-cpp.sh
index e96d64207..f0e84c6de 100755
--- a/formatters/format-cpp.sh
+++ b/formatters/format-cpp.sh
@@ -88,25 +88,35 @@ done
 
 echo "Found ${#files[@]} C/C++ files to format"
 
-# Format each file with progress
-count=0
-errors=0
-for file in "${files[@]}"; do
-    count=$((count + 1))
-    # Show progress every 10 files or for the last file
-    if [ $((count % 10)) -eq 0 ] || [ $count -eq ${#files[@]} ]; then
-        printf "\r[$count/${#files[@]}] Formatting: %-80s" "$(basename "$file")"
+# Check if we're using Docker (if clang-format is a script containing 'docker')
+if file $(which clang-format) | grep -q "shell script"; then
+    echo "Using Docker clang-format - batching files for performance..."
+    # Format all files in one call when using Docker
+    if ! clang-format -i -style=file:".clang-format" "${files[@]}" 2>&1; then
+        echo "Error: clang-format failed"
+        errors=1
     fi
+else
+    # Format each file individually for native clang-format (shows progress)
+    count=0
+    errors=0
+    for file in "${files[@]}"; do
+        count=$((count + 1))
+        # Show progress every 10 files or for the last file
+        if [ $((count % 10)) -eq 0 ] || [ $count -eq ${#files[@]} ]; then
+            printf "\r[$count/${#files[@]}] Formatting: %-80s" "$(basename "$file")"
+        fi
 
-    # Format the file and capture any errors
-    if ! clang-format -i -style=file:".clang-format" "$file" 2>&1; then
-        printf "\nError formatting: $file\n"
-        errors=$((errors + 1))
-    fi
-done
-
-# Clear the progress line and show completion
-printf "\r%-100s\r" " "
+        # Format the file and capture any errors
+        if ! clang-format -i -style=file:".clang-format" "$file" 2>&1; then
+            printf "\nError formatting: $file\n"
+            errors=$((errors + 1))
+        fi
+    done
+    
+    # Clear the progress line
+    printf "\r%-100s\r" " "
+fi
 
 if [ $errors -gt 0 ]; then
     echo "Completed with $errors errors"