99 lines
3.3 KiB
Ruby
99 lines
3.3 KiB
Ruby
require 'addressable/uri'
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require 'middleman-core/util'
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require 'middleman-core/rack'
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class Middleman::Extensions::AssetHash < ::Middleman::Extension
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option :exts, %w(.jpg .jpeg .png .gif .webp .js .css .otf .woff .woff2 .eot .ttf .svg), 'List of extensions that get asset hashes appended to them.'
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option :ignore, [], 'Regexes of filenames to skip adding asset hashes to'
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def initialize(app, options_hash={}, &block)
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super
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require 'digest/sha1'
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require 'rack/mock'
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require 'middleman-core/middleware/inline_url_rewriter'
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end
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def after_configuration
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# Allow specifying regexes to ignore, plus always ignore apple touch icons
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@ignore = Array(options.ignore) + [/^apple-touch-icon/]
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app.use ::Middleman::Middleware::InlineURLRewriter,
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id: :asset_hash,
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url_extensions: options.exts,
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source_extensions: %w(.htm .html .php .css .js),
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ignore: @ignore,
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middleman_app: app,
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proc: method(:rewrite_url)
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end
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Contract String, Or[String, Pathname], Any => Maybe[String]
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def rewrite_url(asset_path, dirpath, _request_path)
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uri = ::Addressable::URI.parse(asset_path)
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relative_path = uri.path[0..0] != '/'
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full_asset_path = if relative_path
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dirpath.join(asset_path).to_s
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else
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asset_path
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end
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return unless asset_page = app.sitemap.find_resource_by_destination_path(full_asset_path) || app.sitemap.find_resource_by_path(full_asset_path)
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replacement_path = "/#{asset_page.destination_path}"
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replacement_path = Pathname.new(replacement_path).relative_path_from(dirpath).to_s if relative_path
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replacement_path
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end
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# Update the main sitemap resource list
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# @return Array<Middleman::Sitemap::Resource>
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Contract ResourceList => ResourceList
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def manipulate_resource_list(resources)
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@rack_client ||= begin
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rack_app = ::Middleman::Rack.new(app).to_app
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::Rack::MockRequest.new(rack_app)
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end
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# Process resources in order: binary images and fonts, then SVG, then JS/CSS.
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# This is so by the time we get around to the text files (which may reference
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# images and fonts) the static assets' hashes are already calculated.
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resources.sort_by do |a|
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if %w(.svg .svgz).include? a.ext
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0
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elsif %w(.js .css).include? a.ext
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1
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else
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-1
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end
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end.each(&method(:manipulate_single_resource))
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end
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Contract IsA['Middleman::Sitemap::Resource'] => Maybe[IsA['Middleman::Sitemap::Resource']]
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def manipulate_single_resource(resource)
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return unless options.exts.include?(resource.ext)
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return if ignored_resource?(resource)
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return if resource.ignored?
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# Render through the Rack interface so middleware and mounted apps get a shot
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response = @rack_client.get(
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URI.escape(resource.destination_path),
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'bypass_inline_url_rewriter_asset_hash' => 'true'
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)
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raise "#{resource.path} should be in the sitemap!" unless response.status == 200
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digest = Digest::SHA1.hexdigest(response.body)[0..7]
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resource.destination_path = resource.destination_path.sub(/\.(\w+)$/) { |ext| "-#{digest}#{ext}" }
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resource
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end
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Contract IsA['Middleman::Sitemap::Resource'] => Bool
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def ignored_resource?(resource)
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@ignore.any? do |ignore|
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Middleman::Util.path_match(ignore, resource.destination_path)
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end
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end
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end
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