133 lines
3.2 KiB
Ruby
133 lines
3.2 KiB
Ruby
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# frozen_string_literal: true
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require "sass"
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require "jekyll/utils"
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module Jekyll
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module Converters
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class Scss < Converter
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BYTE_ORDER_MARK = %r!^\xEF\xBB\xBF!
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SyntaxError = Class.new(ArgumentError)
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safe true
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priority :low
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ALLOWED_STYLES = %w(nested expanded compact compressed).freeze
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def matches(ext)
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ext =~ %r!^\.scss$!i
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end
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def output_ext(_ext)
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".css"
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end
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def safe?
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!!@config["safe"]
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end
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def jekyll_sass_configuration
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options = @config["sass"] || {}
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unless options["style"].nil?
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options["style"] = options["style"].to_s.gsub(%r!\A:!, "").to_sym
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end
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options
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end
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def sass_build_configuration_options(overrides)
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if safe?
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{
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:load_paths => sass_load_paths,
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:syntax => syntax,
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:style => sass_style,
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:cache => false,
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}
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else
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Jekyll::Utils.symbolize_hash_keys(
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Jekyll::Utils.deep_merge_hashes(
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jekyll_sass_configuration,
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overrides
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)
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)
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end
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end
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def syntax
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:scss
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end
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def sass_dir
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return "_sass" if jekyll_sass_configuration["sass_dir"].to_s.empty?
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jekyll_sass_configuration["sass_dir"]
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end
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def sass_style
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style = jekyll_sass_configuration.fetch("style", :compact)
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ALLOWED_STYLES.include?(style.to_s) ? style.to_sym : :compact
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end
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def user_sass_load_paths
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Array(jekyll_sass_configuration["load_paths"])
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end
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def sass_dir_relative_to_site_source
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Jekyll.sanitized_path(site_source, sass_dir)
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end
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def sass_load_paths
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paths = user_sass_load_paths + [sass_dir_relative_to_site_source]
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if safe?
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# Sanitize paths to prevent any attack vectors (.e.g. `/**/*`)
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paths.map! { |path| Jekyll.sanitized_path(site_source, path) }
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end
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# Expand file globs (e.g. `node_modules/*/node_modules` )
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Dir.chdir(site_source) do
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paths = paths.map { |path| Dir.glob(path) }.flatten.uniq
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paths.map! do |path|
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if safe?
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# Sanitize again in case globbing was able to do something crazy.
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Jekyll.sanitized_path(site_source, path)
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else
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File.expand_path(path)
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end
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end
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end
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paths.select { |path| File.directory?(path) }
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end
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def allow_caching?
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!safe?
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end
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def add_charset?
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!!jekyll_sass_configuration["add_charset"]
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end
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def sass_configs
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sass_build_configuration_options({
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"syntax" => syntax,
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"cache" => allow_caching?,
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"load_paths" => sass_load_paths,
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})
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end
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def convert(content)
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output = ::Sass.compile(content, sass_configs)
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replacement = add_charset? ? '@charset "UTF-8";' : ""
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output.sub(BYTE_ORDER_MARK, replacement)
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rescue ::Sass::SyntaxError => e
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raise SyntaxError, "#{e} on line #{e.sass_line}"
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end
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private
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def site_source
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@site_source ||= File.expand_path(@config["source"]).freeze
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end
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end
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end
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end
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