refuse to deploy a site built with --fast

build.py

@@ -21,7 +21,8 @@ static_directory = 'static'
 output_directory = 'output'
 deploy_directory = '~/src/www-home'
 
-md_extensions = ['fenced_code', 'codehilite', 'nl2br', 'toc', 'smarty', 'tables', 'linkify']
+md_extensions = [
+    'fenced_code', 'codehilite', 'nl2br', 'toc', 'smarty', 'tables', 'linkify']
 
 
 def print_file(in_file, out_file):
@@ -74,7 +75,8 @@ def process_markdown_files():
       if page_url.endswith('index.html'):  # strip off index.html
         page_url = page_url[:-len('index.html')]
 
-      html = markdown.markdown(text, extensions=md_extensions, output_format='html5')
+      html = markdown.markdown(
+          text, extensions=md_extensions, output_format='html5')
       output = template.format(title=title, content=html, page_url=page_url)
 
       os.makedirs(out_dirpath, exist_ok=True)
@@ -129,7 +131,10 @@ def main():
   make_rss()
 
   if args.deploy:
-    deploy_site()
+    if args.fast:
+      print('cowardly refusing to deploy a site that was built with --fast')
+    else:
+      deploy_site()
 
 
 if __name__ == '__main__':