Module: Convertify::ConvertHelper

Defined in:
lib/jekyll-convertify/convert.rb

Defined Under Namespace

Classes: ConverterQuery, ConverterResult

Class Method Summary collapse

Class Method Details

.add_dot(extension) ⇒ Object 



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# File 'lib/jekyll-convertify/convert.rb', line 38

def self.add_dot(extension)
  if extension.start_with? "."
    [extension]
  else
    [extension, "." + extension]
  end
end

.find_converter(context, src_ext, dst_ext) ⇒ Object 



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# File 'lib/jekyll-convertify/convert.rb', line 46

def self.find_converter(context, src_ext, dst_ext)
  site = context.registers[:site]
  if src_ext == dst_ext
    return ConverterResult.new(
             converter: site.find_converter_instance(Jekyll::Converters::Identity),
             destination_extension: dst_ext,
           ) if src_ext == dst_ext
  end
  query = ConverterQuery.new(
    source_extension: src_ext,
    destination_extension: dst_ext,
  )
  cache = context.registers[:convertify_converter_cache] ||= {}

  src_exts = self.add_dot(src_ext)
  cached = cache[query]

  if dst_ext
    return cached if cached
    dst_exts = self.add_dot(dst_ext)

    result = self.find_converter_with_dest(site, src_exts, dst_exts)
    return cache[query] = result if result
    query.destination_extension = nil
    cached = cache[query]
  end

  return cached if cached
  result = self.find_converter_any_dest(site, src_exts)
  return cache[query] = result if result
end

.find_converter_any_dest(site, src_exts) ⇒ Object 



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# File 'lib/jekyll-convertify/convert.rb', line 25

def self.find_converter_any_dest(site, src_exts)
  # Find any converter for the given source extension
  converter = site.converters.find { |c|
    src_exts.any? { |src_ext|
      c.matches(src_ext) &&
      c.output_ext(src_ext) != src_ext
    }
  }
  converter && ConverterResult::new(
    converter: converter,
  )
end

.find_converter_with_dest(site, src_exts, dst_exts) ⇒ Object

Find the converter for the given source and destination extensions



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# File 'lib/jekyll-convertify/convert.rb', line 12

def self.find_converter_with_dest(site, src_exts, dst_exts)
  converter = site.converters.find { |c|
    src_exts.any? { |src_ext|
      c.matches(src_ext) &&
      dst_exts.include?(c.output_ext(src_ext))
    }
  }
  converter && ConverterResult::new(
    converter: converter,
    destination_extension: dst_exts[0],
  )
end

.infer_extension(name) ⇒ Object 



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# File 'lib/jekyll-convertify/convert.rb', line 2

def self.infer_extension(name)
  ext = name && File.extname(name)
  return nil if ext.nil? || ext.empty?
  ext
end