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Contents
# frozen_string_literal: true
require 'oj'
module Proscenium
class Middleware
class Lightningcss < Base
def attempt
benchmark :lightningcss do
with_custom_media { |path| build path }
end
end
private
def with_custom_media
if custom_media?
Tempfile.create do |f|
contents = Pathname.new("#{root}#{@request.path}").read
f.write contents, "\n", custom_media_path.read
f.rewind
yield f.path
end
else
yield "#{root}#{@request.path}"
end
end
def build(path)
results = super("#{cli} #{cli_options.join ' '} #{path}")
render_response css_module? ? Oj.load(results, mode: :strict)['code'] : results
end
def custom_media?
@custom_media ||= custom_media_path.exist?
end
def custom_media_path
@custom_media_path ||= Rails.root.join('lib', 'custom_media_queries.css')
end
def cli
Gem.bin_path 'proscenium', 'lightningcss'
end
def cli_options
options = ['--nesting', '--targets', "'>= 0.25%'"]
options << '--custom-media' if custom_media?
if css_module?
hash = Digest::SHA1.hexdigest(@request.path)[..7]
options += ['--css-modules', '--css-modules-pattern', "'[local]#{hash}'"]
end
Rails.env.production? ? options << '-m' : options
end
def css_module?
@css_module ||= /\.module\.css$/i.match?(@request.path_info)
end
end
end
end
Version data entries
36 entries across 36 versions & 1 rubygems