From 74cf43ac31b2ae288ee6fa1db5c55fa1bb1922ff Mon Sep 17 00:00:00 2001
From: Scott Aiton <scott@aiton.net>
Date: Tue, 28 May 2024 10:00:23 -0600
Subject: [PATCH] add update regressions script

---
 scripts/update_regressions.py | 51 +++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100755 scripts/update_regressions.py

diff --git a/scripts/update_regressions.py b/scripts/update_regressions.py
new file mode 100755
index 000000000..42141a685
--- /dev/null
+++ b/scripts/update_regressions.py
@@ -0,0 +1,51 @@
+#! /usr/bin/env python3
+
+import os
+import subprocess
+import shutil
+import time
+import argparse
+
+def run_ctest(build_dir, rerun_failed=False):
+    """Run ctest in the specified build directory."""
+    if rerun_failed:
+        result = subprocess.run(['ctest', '--rerun-failed'], cwd=build_dir)
+    else:
+        result = subprocess.run(['ctest'], cwd=build_dir)
+    return result.returncode == 0
+
+def handle_actual_files(src_dir):
+    """Recursively rename .actual files by removing the .actual extension."""
+    actual_files_found = False
+    for root, _, files in os.walk(src_dir):
+        for file in files:
+            if file.endswith('.actual'):
+                actual_files_found = True
+                actual_file_path = os.path.join(root, file)
+                original_file_path = os.path.join(root, file[:-7])  # Remove the .actual extension
+                shutil.move(actual_file_path, original_file_path)
+    return actual_files_found
+
+def main(build_dir, src_dir):
+    """Run ctest repeatedly until no .actual files are produced."""
+    first_run = True
+    while True:
+        print("Running ctest...")
+        if run_ctest(build_dir, rerun_failed=not first_run):
+            print("All tests passed.")
+            break
+        print("Handling .actual files...")
+        if not handle_actual_files(src_dir):
+            print("No .actual files found.")
+            break
+        print(".actual files handled. Re-running failed tests...")
+        first_run = False
+        time.sleep(1)  # Small delay to avoid rapid re-running
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Run ctest and handle .actual files.')
+    parser.add_argument('--build', type=str, required=True, help='Path to the build directory')
+    parser.add_argument('--src', type=str, required=True, help='Path to the source directory')
+    args = parser.parse_args()
+
+    main(args.build, args.src)
\ No newline at end of file