Also generate social image for blog posts

Author: gastaldi

_plugins/social_images.rb

@@ -29,22 +29,53 @@ def generate(site)
         Jekyll.logger.info('Skipping social image generation')
         return
       end
-      guides = Dir.glob(File.join(site.source, '_guides', '*.adoc'))
+      generate_images(Dir.glob(File.join(site.source, '_guides', '*.adoc')), site)
+      generate_images(Dir.glob(File.join(site.source, '_posts', '*.adoc')), site)
+    end
+
+    def split_text_into_lines(text)
+      lines = []
+      words = text.split(' ')
+      current_line = ''
+
+      words.each do |word|
+        if current_line.length + word.length <= 32
+          current_line += (current_line == '' ? '' : ' ') + word
+        else
+          lines.push(current_line)
+          current_line = word
+        end
+      end
+
+      lines.push(current_line) unless current_line.empty?
+
+      lines
+    end
+
+    private
+
+    def generate_images(files, site)
       output_dir = 'assets/images/social'
       FileUtils.mkdir_p(File.join(site.source, output_dir))
 
-      guides.each do |guide_file|
+      files.each do |guide_file|
         basename = File.basename(guide_file, '.adoc')
         if basename.start_with?('_')
           next
         end
         title = extract_title(guide_file)
+        # Skip if title is empty
+        if (title.nil? || title.empty?)
+          next
+        end
         output_file = File.join(site.source, output_dir, "#{basename}.png")
         # Skip if the file already exists
         if File.exist?(output_file)
           next
         end
 
+        Jekyll.logger.info("Generating social image for '#{title}' in #{output_file}")
+
         # Generate the SVG image
         svg_image_str = generate_svg_string(title)
 
@@ -65,38 +96,16 @@ def generate(site)
         # Change the last parameters to change the position of the generated image
         png_image.compose!(ChunkyPNG::Image.from_blob(b.string), 0, 80)
 
-        Jekyll.logger.info("Generating social image to #{output_file}")
         # Save the composed image to the output file
         png_image.save(output_file)
       end
     end
 
-    def split_text_into_lines(text)
-      lines = []
-      words = text.split(' ')
-      current_line = ''
-
-      words.each do |word|
-        if current_line.length + word.length <= 32
-          current_line += (current_line == '' ? '' : ' ') + word
-        else
-          lines.push(current_line)
-          current_line = word
-        end
-      end
-
-      lines.push(current_line) unless current_line.empty?
-
-      lines
-    end
-
-    private
-
     def generate_svg_string(title)
       idx = 90
       font_size = 30
       tspan_elements = ''
-      split_text_into_lines(title).each_with_index do |line, index|
+      split_text_into_lines(title.gsub('&', '&amp;')).each_with_index do |line, index|
         tspan_elements += "<tspan x='50%' y='#{idx}'>#{line}</tspan>"
         idx += font_size + 10
       end