Class: Middleman::Extensions::AssetHash::AssetHashManager

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# File 'middleman-more/lib/middleman-more/extensions/asset_hash.rb', line 21

def initialize(app, exts)
  @app = app
  @exts = exts
end

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# File 'middleman-more/lib/middleman-more/extensions/asset_hash.rb', line 28

def manipulate_resource_list(resources)
  resources.each do |resource|
    if @exts.include? resource.ext
      # figure out the path Sprockets would use for this asset
      if resource.ext == '.js'
        sprockets_path = resource.path.sub(@app.js_dir,'').sub(/^\//,'')
      elsif resource.ext == '.css'
        sprockets_path = resource.path.sub(@app.css_dir,'').sub(/^\//,'')
      end

      # See if Sprockets knows about the file
      asset = @app.sprockets.find_asset(sprockets_path) if sprockets_path

      if asset # if it's a Sprockets asset, ask sprockets for its digest
        digest = asset.digest[0..7]
      elsif resource.template? # if it's a template, render it out
        digest = Digest::SHA1.hexdigest(resource.render)[0..7]
      else # if it's a static file, just hash it
        digest = Digest::SHA1.file(resource.source_file).hexdigest[0..7]
      end

      resource.destination_path = resource.destination_path.sub(/\.(\w+)$/) { |ext| "-#{digest}#{ext}" }
    end
  end
end