Class: Sakusei::HtmlConverter

Inherits:
ConverterBase show all
Defined in:
lib/sakusei/html_converter.rb

Overview

Converts markdown content to a styled HTML string by invoking ‘npx md-to-pdf –as-html`. Used by the live preview server.

Instance Method Summary collapse

Methods inherited from ConverterBase

#initialize

Constructor Details

This class inherits a constructor from Sakusei::ConverterBase

Instance Method Details

#convert ⇒ Object 



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# File 'lib/sakusei/html_converter.rb', line 11

def convert
  Dir.mktmpdir('sakusei-html') do |temp_dir|
    temp_md = File.join(temp_dir, 'input.md')
    # Header/footer files are injected as @page margin chrome by PreviewServer.
    # Don't prepend them to the body the way MdToPdfConverter does for PDF output.
    File.write(temp_md, @content)

    copy_images(temp_dir)

    cmd = build_command(temp_md, temp_dir, ['--as-html'])
    stdout, stderr, status = Open3.capture3(*cmd)

    unless status.success?
      raise Error, "HTML conversion failed: #{stderr.strip}\n#{stdout.strip}"
    end

    html_path = File.join(temp_dir, 'input.html')
    raise Error, "md-to-pdf did not produce HTML at #{html_path}" unless File.exist?(html_path)

    File.read(html_path)
  end
end