Fix broken emojis.

lib/tasks/emoji.rake

@@ -40,7 +40,10 @@ task "emoji:update" => :environment do
 
     code = cells[1].at_css("a")["name"]
 
+    unless emojis[code]
+      code = code.gsub(/_fe0f/, "")
       next unless emojis[code]
+    end
 
     apple = cell_to_image(cells[4])
     google = cell_to_image(cells[5])
@@ -50,7 +53,7 @@ task "emoji:update" => :environment do
     if WINDOWS_FLAGS.include?(code)
       windows = custom_windows_flag(code)
     else
-      windows = cell_to_image(cells[9])
+      windows = cell_to_image(cells[11])
     end
 
     if apple.blank? || google.blank? || twitter.blank? || one.blank? || windows.blank?
@@ -94,13 +97,16 @@ def custom_windows_flag(code)
 end
 
 def write_emojis(emojis, aliases, style, folder)
-  path = "public/images/emoji/#{folder}/"
+  path = "public/images/emoji/#{folder}"
 
-  FileUtils.rm_f Dir.glob("#{path}/*")
+  # Uncomment to recreate all emojis
+  # FileUtils.rm_f Dir.glob("#{path}/*")
 
   puts folder
 
   emojis.values.each do |emoji|
+    next if emoji[style].nil?
+
     write_emoji("#{path}/#{emoji[:name]}.png", emoji[style])
     if aliases[emoji[:name]]
       aliases[emoji[:name]].each do |new_name|
@@ -116,4 +122,6 @@ def write_emoji(path, emoji)
     open(path, "wb") { |f| f << emoji }
     `pngout #{path}`
     putc "."
+ensure
+  raise "Failed to write emoji: #{path}" if File.exists?(path) && !File.size?(path)
 end