84 lines
2.3 KiB
Ruby
84 lines
2.3 KiB
Ruby
# Core Pathname library used for traversal
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require 'pathname'
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# DbC
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require 'middleman-core/contracts'
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require 'active_support/core_ext/hash/keys'
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require 'middleman-core/util/data'
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# Extensions namespace
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module Middleman::CoreExtensions
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class FrontMatter < ::Middleman::Extension
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# Try to run after routing but before directory_indexes
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self.resource_list_manipulator_priority = 20
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def initialize(app, options_hash={}, &block)
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super
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@cache = {}
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end
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def before_configuration
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app.files.on_change(:source, &method(:clear_data))
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end
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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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resources.each do |resource|
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next if resource.ignored?
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next if resource.file_descriptor.nil?
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next unless resource.template?
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fmdata = data(resource.file_descriptor[:full_path].to_s).first.dup
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# Copy over special options
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# TODO: Should we make people put these under "options" instead of having
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# special known keys?
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opts = fmdata.extract!(:layout, :layout_engine, :renderer_options, :directory_index, :content_type)
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opts[:renderer_options].symbolize_keys! if opts.key?(:renderer_options)
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ignored = fmdata.delete(:ignored)
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# TODO: Enhance data? NOOOO
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# TODO: stringify-keys? immutable/freeze?
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resource.add_metadata options: opts, page: fmdata
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resource.ignore! if ignored == true && !resource.is_a?(::Middleman::Sitemap::ProxyResource)
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# TODO: Save new template here somewhere?
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end
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end
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# Get the template data from a path
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# @param [String] path
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# @return [String]
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Contract String => Maybe[String]
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def template_data_for_file(path)
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data(path).last
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end
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Contract String => [Hash, Maybe[String]]
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def data(path)
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file = app.files.find(:source, path)
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return [{}, nil] unless file
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@cache[file[:full_path]] ||= ::Middleman::Util::Data.parse(
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file[:full_path],
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app.config[:frontmatter_delims]
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)
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end
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Contract ArrayOf[IsA['Middleman::SourceFile']], ArrayOf[IsA['Middleman::SourceFile']] => Any
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def clear_data(updated_files, removed_files)
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(updated_files + removed_files).each do |file|
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@cache.delete(file[:full_path])
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end
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end
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end
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end
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