# frozen_string_literal: true def gen_border(codepoint, color) input = Rails.public_path.join('emoji', "#{codepoint}.svg") dest = Rails.public_path.join('emoji', "#{codepoint}_border.svg") doc = File.open(input) { |f| Nokogiri::XML(f) } svg = doc.at_css('svg') if svg.key?('viewBox') view_box = svg['viewBox'].split.map(&:to_i) view_box[0] -= 2 view_box[1] -= 2 view_box[2] += 4 view_box[3] += 4 svg['viewBox'] = view_box.join(' ') end g = Nokogiri::XML::Node.new 'g', doc doc.css('svg > *').each do |elem| border_elem = elem.dup border_elem.delete('fill') border_elem['stroke'] = color border_elem['stroke-linejoin'] = 'round' border_elem['stroke-width'] = '4px' g.add_child(border_elem) end svg.prepend_child(g) File.write(dest, doc.to_xml) puts "Wrote bordered #{codepoint}.svg to #{dest}!" end def codepoints_to_filename(codepoints) codepoints.downcase.gsub(/\A[0]+/, '').tr(' ', '-') end def codepoints_to_unicode(codepoints) if codepoints.include?(' ') codepoints.split.map(&:hex).pack('U*') else [codepoints.hex].pack('U') end end namespace :emojis do desc 'Generate a unicode to filename mapping' task :generate do source = 'http://www.unicode.org/Public/emoji/14.0/emoji-test.txt' codes = [] dest = Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json') puts "Downloading emojos from source... (#{source})" HTTP.get(source).to_s.split("\n").each do |line| next if line.start_with? '#' parts = line.split(';').map(&:strip) next if parts.size < 2 codes << [parts[0], parts[1].start_with?('fully-qualified')] end grouped_codes = codes.reduce([]) do |agg, current| if current[1] agg << [current[0]] else agg.last << current[0] agg end end existence_maps = grouped_codes.map { |c| c.index_with { |cc| Rails.public_path.join('emoji', "#{codepoints_to_filename(cc)}.svg").exist? } } map = {} existence_maps.each do |group| existing_one = group.key(true) next if existing_one.nil? group.each_key do |key| map[codepoints_to_unicode(key)] = codepoints_to_filename(existing_one) end end map = map.sort { |a, b| a[0].size <=> b[0].size }.to_h File.write(dest, Oj.dump(map)) puts "Wrote emojo to destination! (#{dest})" end desc 'Generate emoji variants with white borders' task :generate_borders do src = Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json') emojis_light = 'đŊâžđâī¸đ¨đī¸đđĨđģđâââ¸ī¸đŠī¸đđđđ§ī¸đđđđđđâ ī¸đ¨ī¸đđđŦđđđŗī¸âĒâŦâŊâģī¸âĢī¸' emojis_dark = 'đąđâĢđ¤âŦâŧī¸âžâŧī¸âī¸âĒī¸đŖđŗđˇđ¸âŖī¸đļī¸â´ī¸đđââī¸đŊī¸đŗđĻđđĒđŗī¸đšī¸đđī¸đī¸đââī¸đ¤đđĨđŧâ ī¸đŠđĻđŧđšđŽđđ´đđēđąđ˛đ˛' map = Oj.load(File.read(src)) emojis_light.each_grapheme_cluster do |emoji| gen_border map[emoji], 'black' end emojis_dark.each_grapheme_cluster do |emoji| gen_border map[emoji], 'white' end end end