feat: Add script to filter asciinema cast files for "Atuin" visibility

scripts/redact-cast.py

@@ -5,3 +5,48 @@ import re
 import sys
 
 import pyte
+
+def main():
+    if len(sys.argv) != 3:
+        print(f"Usage: {sys.argv[0]} input_cast_file output_cast_file")
+        sys.exit(1)
+    
+    input_file = sys.argv[1]
+    output_file = sys.argv[2]
+    
+    # Initialize pyte screen and stream
+    screen = pyte.Screen(80, 24)
+    stream = pyte.Stream(screen)
+    
+    # Read and parse the cast file
+    with open(input_file, 'r') as f:
+        # First line is header
+        header = f.readline().strip()
+        
+        # Read the events
+        events = [json.loads(line) for line in f if line.strip()]
+    
+    filtered_events = []
+    
+    # Process each event through the terminal emulator
+    for event in events:
+        # Process the event in the terminal
+        if len(event) >= 3 and event[1] == 'o':  # Output event
+            stream.feed(event[2])
+            
+            # Check if "Atuin" is visible on screen
+            display_content = "\n".join("".join(line) for line in screen.display)
+            if "Atuin" in display_content:
+                continue  # Skip this event
+        
+        # Keep this event
+        filtered_events.append(event)
+    
+    # Write the filtered content to the output file
+    with open(output_file, 'w') as f:
+        f.write(header + '\n')
+        for event in filtered_events:
+            f.write(json.dumps(event) + '\n')
+
+if __name__ == "__main__":
+    main()