restore_mlflow_paths.py

import re
import glob
import sys

def restore_file(file_path, absolute_path, user_id):
    """Restore placeholders in files with the specified absolute path and user ID."""
    with open(file_path, 'r') as f:
        lines = f.readlines()
    
    modified = False
    for i, line in enumerate(lines):
        # Restore artifact_uri or artifact_location
        if 'artifact_uri:' in line or 'artifact_location:' in line:
            new_line = re.sub(r'file://<placeholder>(/mlruns/)', rf'file://{absolute_path}\1', line)
            if new_line != line:
                lines[i] = new_line
                modified = True
        # Restore user_id
        elif 'user_id:' in line and '<user_placeholder>' in line:
            new_line = re.sub(r'user_id:\s*<user_placeholder>', f'user_id: {user_id}', line)
            if new_line != line:
                lines[i] = new_line
                modified = True
    
    if modified:
        with open(file_path, 'w') as f:
            f.writelines(lines)
        print(f"Restored: {file_path}")

def main():
    if len(sys.argv) != 3:
        print("Usage: python restore_mlflow_paths.py <absolute_path> <user_id>")
        print("Example: python restore_mlflow_paths.py /home/user/path/to/mlruns hendrik-roth")
        sys.exit(1)
    
    absolute_path = sys.argv[1]
    user_id = sys.argv[2]
    # Ensure the path starts with / and does not end with /
    if not absolute_path.startswith('/'):
        absolute_path = '/' + absolute_path
    absolute_path = absolute_path.rstrip('/')
    
    # Find all yaml files recursively
    yaml_files = glob.glob('**/*.yaml', recursive=True)
    for file_path in yaml_files:
        restore_file(file_path, absolute_path, user_id)
    
    # Also restore mlflow.user tag files
    user_files = glob.glob('**/tags/mlflow.user', recursive=True)
    for file_path in user_files:
        with open(file_path, 'w') as f:
            f.write(f'{user_id}\n')
        print(f"Restored: {file_path}")
    
    print("Path restoration complete.")

if __name__ == "__main__":
    main()