Class: Libis::Format::TypeDatabaseImpl

Inherits:
Object
  • Object
show all
Includes:
Tools::Logger, Singleton
Defined in:
lib/libis/format/type_database_impl.rb

Instance Method Summary collapse

Instance Method Details

#export_csv(filename, **options) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 96

def export_csv(filename, **options)
  headers = @types.values.each_with_object(Set.new) { |v, s| v.each_key { |k| s << k.to_s } }
  options[:headers] = headers.to_a
  CSV.open(filename, 'w', **options) do |csv|
    @types.each_value do |v|
      csv << CSV::Row.new(v.keys, v.values.map { |x| x.is_a?(Array) ? x.join(', ') : x })
    end
  end
end

#ext_infos(ext) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 60

def ext_infos(ext)
  ext = ext.gsub(/^\./, '')
  @types.select do |_, v|
    v[:EXTENSIONS].include?(ext)
  rescue StandardError
    false
  end.values
end

#ext_types(ext) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 69

def ext_types(ext)
  ext = ext.gsub(/^\./, '')
  @types.select do |_, v|
    v[:EXTENSIONS].include?(ext)
  rescue StandardError
    false
  end.keys
end

#group_types(group) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 22

def group_types(group)
  @types.select do |_, v|
    v[:GROUP] == group.to_sym
  end.keys
end

#groups ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 92

def groups
  @types.values.map(&:dig.with(:GROUP)).uniq
end

#known_mime?(mime) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/libis/format/type_database_impl.rb', line 85

def known_mime?(mime)
  @types.each do |_, v|
    return true if v[:MIME]&.include? mime
  end
  false
end

#load_types(file_or_hash = {}, append = true) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 106

def load_types(file_or_hash = {}, append = true)
  hash = file_or_hash.is_a?(Hash) ? file_or_hash : YAML.load_file(file_or_hash)
  # noinspection RubyResolve
  hash.each do |group, type_info|
    type_info.each do |type_name, info|
      type_key = type_name.to_sym
      info.symbolize_keys!
      info[:TYPE] = type_key
      info[:GROUP] = group.to_sym
      info[:MIME] = begin
        info[:MIME].strip.split(/[\s,]+/).map(&:strip)
      rescue StandardError
        []
      end
      info[:EXTENSIONS] = begin
        info[:EXTENSIONS].strip.split(/[\s,]+/).map(&:strip)
      rescue StandardError
        []
      end
      info[:PUID] = info[:PUID].strip.split(/[\s,]+/).map(&:strip) if info[:PUID]
      if @types.key?(type_key)
        warn 'Type %s already defined; merging with info from %s.', type_name, file_or_hash
        info.merge!(@types[type_key]) do |_, v_new, v_old|
          case v_old
          when Array
            append ? v_old + v_new : v_new + v_old
          when Hash
            append ? v_new.merge(v_old) : v_old.merge(v_new)
          else
            append ? v_old : v_new
          end
        end
      end
      @types[type_key] = info
    end
  end
end

#mime_infos(mime) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 44

def mime_infos(mime)
  @types.select do |_, v|
    v[:MIME].include? mime
  rescue StandardError
    false
  end.values
end

#mime_types(mime) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 52

def mime_types(mime)
  @types.select do |_, v|
    v[:MIME].include? mime
  rescue StandardError
    false
  end.keys
end

#puid_infos(puid) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 28

def puid_infos(puid)
  @types.select do |_, v|
    v[:PUID].include? puid
  rescue StandardError
    false
  end.values
end

#puid_typeinfo(puid) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 78

def puid_typeinfo(puid)
  @types.each do |_, v|
    return v if v[:PUID]&.include?(puid)
  end
  nil
end

#puid_types(puid) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 36

def puid_types(puid)
  @types.select do |_, v|
    v[:PUID].include? puid
  rescue StandardError
    false
  end.keys
end

#typeinfo(ftype) ⇒ Object 



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# File 'lib/libis/format/type_database_impl.rb', line 18

def typeinfo(ftype)
  @types[ftype.to_sym] || {}
end