html-pipeline executable for Github markdown previews

html-pipeline

#!/usr/bin/env ruby

ARGV.each do |path|
  abort "#{path} doesn't exist!" unless File.exist?(path)
end

require 'html/pipeline'
filters = [
  HTML::Pipeline::MarkdownFilter,
  HTML::Pipeline::SanitizationFilter,
  HTML::Pipeline::ImageMaxWidthFilter,
  HTML::Pipeline::EmojiFilter,
  HTML::Pipeline::AutolinkFilter,
  HTML::Pipeline::TableOfContentsFilter,
]

begin
  require 'linguist'
  filters << HTML::Pipeline::SyntaxHighlightFilter
rescue LoadError => e
end
  

context = {
  :asset_root => "/assets",
  :base_url   => "/",
  :gfm => true
}

# GitHub-style pipeline
puts HTML::Pipeline.new(filters, context).call(ARGF.read)[:output]