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Versions: 20
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Contents
require 'yaml'
require 'pathname'
# When using pandoc, put relevant bibliography metadata extracted in the YAML filter back in the document so it gets passed on to pandoc.
class Gollum::Filter::PandocBib < Gollum::Filter
BIB_PATH_KEYS = ['bibliography', 'csl']
BIB_KEYS = ['link-citations', 'nocite']
ALL_BIB_KEYS = BIB_PATH_KEYS + BIB_KEYS
def process(data)
data
end
def extract(data)
return data unless supported_format? && bibliography_metadata_present?
@bib_metadata.select! {|key, _value| BIB_KEYS.include?(key)}
BIB_PATH_KEYS.each do |bibliography_key|
if path = @markup.metadata[bibliography_key]
next unless file = @markup.wiki.file(path)
@bib_metadata[bibliography_key] = path_for_bibfile(file)
end
end
@bib_metadata.empty? ? data : "#{@bib_metadata.to_yaml}---\n#{data}"
end
private
def path_for_bibfile(file)
if @markup.wiki.repo_is_bare
path = Pathname.new("#{::File.join(::Dir.tmpdir, file.sha)}#{::File.extname(file.path)}")
unless path.exist?
path.open('w') do |copy_file|
copy_file.write(file.raw_data)
end
end
path.to_s
else
::File.expand_path(::File.join(@markup.wiki.path, file.path))
end
end
def supported_format?
@markup.format == :markdown
end
def bibliography_metadata_present?
return false unless @markup.metadata
@bib_metadata = @markup.wiki.metadata.merge(@markup.metadata)
@bib_metadata.keys.any? {|key| ALL_BIB_KEYS.include?(key)}
end
end
Version data entries
20 entries across 20 versions & 1 rubygems