Google_Fonts_Processor.py

#!/usr/bin/env python3
"""
Google Fonts CSS Processor - Startr LLC
Copyright (c) 2025 Startr LLC, MIT License

Processes Google Fonts CSS to:
1. Generate wget commands to download all font files
2. Create revised CSS pointing to local font files
3. Organize fonts with semantic filenames

Usage:
  python process_fonts.py input.css

Inputs:
  - CSS file containing @font-face rules from Google Fonts

Outputs:
  - revised.css (local font paths)
  - download_fonts.sh (download script)
  
Dependencies: Python 3.6+
"""

import re
import os
import sys

def process_css(input_file):
    """Main processing function that handles CSS transformation"""
    with open(input_file, 'r') as f:
        css = f.read()

    # Pattern to extract font-face blocks with preceding comments
    pattern = re.compile(r'/\*\s*(.*?)\s*\*/(.*?@font-face\s*\{.*?src:\s*url\((.*?)\).*?\})', re.DOTALL)
    matches = re.findall(pattern, css)

    download_commands = []
    new_css = []
    
    for comment, block, url in matches:
        # Extract font metadata
        font_family = re.search(r"font-family:\s*['\"](.*?)['\"]", block).group(1)
        style = re.search(r"font-style:\s*(.*?);", block).group(1).strip()
        weight = re.search(r"font-weight:\s*(.*?);", block).group(1).strip().replace(' ', '-')
        clean_comment = comment.strip().lower().replace(' ', '-')
        
        # Generate filename and commands
        filename = f"{font_family.replace(' ', '-')}-{style}-{weight}-{clean_comment}.woff2"
        download_commands.append(f"wget '{url}' -O '{filename}'")
        
        # Update CSS block
        new_block = block.replace(url, filename)
        new_css.append(f"/* {comment} */{new_block}")

    # Write output files
    with open('revised.css', 'w') as f:
        f.write('\n\n'.join(new_css))
    
    with open('download_fonts.sh', 'w') as f:
        f.write("#!/bin/bash\n")
        f.write('# Auto-generated download script - Startr LLC\n')
        f.write('# Execute this to download all font files\n\n')
        f.write('\n'.join(download_commands))
    os.chmod('download_fonts.sh', 0o755)

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: python process_fonts.py <input.css>")
        sys.exit(1)
    process_css(sys.argv[1])