Module: Mdopen

Defined in:
lib/mdopen.rb,
lib/mdopen/version.rb

Constant Summary collapse

VERSION = 
"0.1.5"

Class Method Summary collapse

Class Method Details

.erb_render(content, tmp_file) ⇒ Object 



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# File 'lib/mdopen.rb', line 17

def erb_render(content, tmp_file)
  template_path = File.join(__dir__, 'templates/github.html.erb')
  template = Tilt::ERBTemplate.new(template_path)
  output = template.render(self, content: content)
  tmp_file.write(output)
  tmp_file.close
end

.md2html(md_file) ⇒ Object 



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# File 'lib/mdopen.rb', line 25

def md2html(md_file)
  parser = Redcarpet::Markdown.new(
    Redcarpet::Render::HTML.new,
    fenced_code_blocks: true,
    tables: true,
    autolink: true,
    space_after_headers: true,
    highlight: true,
    quote: true,
    strikethrough: true,
    superscript: true,
    no_intra_emphasis: true)
  parser.render(md_file)
end

.new_tmpfile ⇒ Object 



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# File 'lib/mdopen.rb', line 50

def new_tmpfile
  filename = tmp_filename
  tmp_file = Tempfile.new([filename, '.html'])
  # prevent tempfile from deleting by GC
  ObjectSpace.undefine_finalizer(tmp_file)
  tmp_file
end

.open_cmd ⇒ Object 



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# File 'lib/mdopen.rb', line 40

def open_cmd
  if OS.mac?
    "open"
  elsif OS.windows?
    "cmd /c start"
  else
    "xdg-open"
  end
end

.preview(md_file) ⇒ Object 



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# File 'lib/mdopen.rb', line 9

def preview(md_file)
  content = md2html(md_file)
  tmp_file = new_tmpfile
  html_file_path = tmp_file.path
  erb_render(content, tmp_file)
  system "#{open_cmd} file://#{html_file_path}"
end

.tmp_filename ⇒ Object 



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# File 'lib/mdopen.rb', line 58

def tmp_filename
  [('a'..'z'), ('A'..'Z'), (0..9)].map(&:to_a).flatten.sample(12).join
end