Add SPDX header to sources

[ayerofieiev-tt]

Add SPDX header to all out sources

#!/usr/bin/env python3

import os
import sys

# The copyright header to add
COPYRIGHT_HEADER = """# SPDX-FileCopyrightText: © 2025 Tenstorrent AI ULC
#
# SPDX-License-Identifier: Apache-2.0
"""

def add_copyright_to_file(file_path):
    """Add copyright header to a Python file if it doesn't already have it."""
    with open(file_path, 'r', encoding='utf-8') as f:
        content = f.read()
    
    # Check if the header is already present
    if COPYRIGHT_HEADER.strip() in content:
        print(f"Header already present in {file_path}")
        return False
    
    # Add the header at the beginning of the file
    with open(file_path, 'w', encoding='utf-8') as f:
        f.write(COPYRIGHT_HEADER)
        # If the file has a shebang line, we need to handle it specially
        if content.startswith('#!'):
            # Split at the first newline
            shebang, rest = content.split('\n', 1)
            f.write(shebang + '\n\n')
            f.write(rest)
        else:
            f.write(content)
    
    print(f"Added header to {file_path}")
    return True

def process_directory(directory):
    """Process all Python files in a directory recursively."""
    modified_count = 0
    
    for root, dirs, files in os.walk(directory):
        for file in files:
            if file.endswith('.py'):
                full_path = os.path.join(root, file)
                if add_copyright_to_file(full_path):
                    modified_count += 1
    
    return modified_count

if __name__ == "__main__":
    project_dir = '/home/ubuntu/pytorch2.0_ttnn'
    
    # Skip directories that should be excluded (if any)
    # excluded_dirs = ['.git', '.github', '__pycache__']
    
    print(f"Adding copyright headers to Python files in {project_dir}")
    modified_count = process_directory(project_dir)
    print(f"Added copyright header to {modified_count} files")