consultoria-as
f893391916
- Extraído CSS inline de 15 templates POS + 13 templates Dashboard - CSS movido a archivos .css externos en pos/static/css/ y dashboard/ - Generados .min.css vía minify-assets.sh - Nginx auto-serve transparente para .min.css - Tests: 73/73 pasando - Script: scripts/extract-inline-css.py
111 lines
3.3 KiB
Python
111 lines
3.3 KiB
Python
#!/usr/bin/env python3
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"""Extract inline <style> blocks from HTML templates into external CSS files.
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Replaces each <style>...</style> block with a <link rel="stylesheet"> tag.
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This allows browsers to cache CSS across page navigations and dramatically
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reduces HTML payload size.
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Usage:
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python3 extract-inline-css.py
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"""
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import glob
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import re
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from pathlib import Path
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def extract_css_from_template(html_path, css_output_dir, css_url_prefix):
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"""Extract <style> blocks from an HTML file into an external CSS file.
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Returns the modified HTML content.
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"""
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with open(html_path, 'r', encoding='utf-8') as f:
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html = f.read()
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style_blocks = list(re.finditer(
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r'<style[^>]*>(.*?)</style>',
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html,
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re.DOTALL | re.IGNORECASE
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))
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if not style_blocks:
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return html # No inline CSS to extract
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# Extract all CSS content
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css_parts = []
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for m in style_blocks:
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css = m.group(1).strip()
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if css:
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css_parts.append(css)
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if not css_parts:
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return html
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# Write external CSS file
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name = Path(html_path).stem
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css_filename = f"{name}.css"
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css_path = Path(css_output_dir) / css_filename
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css_path.parent.mkdir(parents=True, exist_ok=True)
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combined_css = '\n\n'.join(css_parts)
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with open(css_path, 'w', encoding='utf-8') as f:
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f.write(f"/* Extracted from {Path(html_path).name} */\n\n")
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f.write(combined_css)
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f.write('\n')
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# Replace first <style> block with <link>, remove the rest
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link_tag = f'<link rel="stylesheet" href="{css_url_prefix}{css_filename}">'
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new_html = html[:style_blocks[0].start()] + link_tag + html[style_blocks[0].end():]
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# Remove remaining style blocks (they were concatenated into the CSS file)
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for m in reversed(style_blocks[1:]):
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new_html = new_html[:m.start()] + new_html[m.end():]
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return new_html
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def process_directory(html_dir, css_output_dir, css_url_prefix):
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"""Process all HTML files in a directory."""
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templates = sorted(glob.glob(f"{html_dir}/*.html"))
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total_saved = 0
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for html_path in templates:
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new_html = extract_css_from_template(html_path, css_output_dir, css_url_prefix)
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# Write back the modified HTML
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with open(html_path, 'w', encoding='utf-8') as f:
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f.write(new_html)
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original_size = Path(html_path).stat().st_size
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total_saved += original_size - len(new_html.encode('utf-8'))
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name = Path(html_path).name
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print(f" {name}: extracted CSS -> {css_url_prefix}{Path(html_path).stem}.css")
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return total_saved
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def main():
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print("=== Extracting inline CSS from POS templates ===")
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saved_pos = process_directory(
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'/home/Autopartes/pos/templates',
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'/home/Autopartes/pos/static/css',
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'/pos/static/css/'
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)
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print("\n=== Extracting inline CSS from Dashboard templates ===")
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saved_dash = process_directory(
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'/home/Autopartes/dashboard',
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'/home/Autopartes/dashboard',
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'' # Dashboard CSS is in the same directory
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)
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total_saved_kb = (saved_pos + saved_dash) / 1024
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print(f"\n=== Done ===")
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print(f"Total HTML payload reduced by ~{total_saved_kb:.0f} KB")
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print(f"POS templates: ~{saved_pos/1024:.0f} KB")
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print(f"Dashboard templates: ~{saved_dash/1024:.0f} KB")
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if __name__ == '__main__':
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main()
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