Module: Mn2pdf

Defined in:
lib/mn2pdf.rb,
lib/mn2pdf/version.rb

Constant Summary collapse

FONTS_MANIFEST = 
:font_manifest
VERSION = 
"2.10".freeze
MN2PDF_JAR_VERSION = 
VERSION

Class Method Summary collapse

Class Method Details

.build_args(url, output, xslt) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 37

def self.build_args(url, output, xslt)
  return if url.nil? || output.nil? || xslt.nil?

  ["--xml-file", quote(url),
   "--xsl-file", quote(xslt),
   "--pdf-file", quote(output)]
end

.convert(url_path, output_path, xsl_stylesheet, options = {}) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 22

def self.convert(url_path, output_path, xsl_stylesheet, options = {})
  args = build_args(url_path, output_path, xsl_stylesheet)

  return unless args

  case options
  when String
    mn2pdf(args + [options])
  when Hash
    mn2pdf_hash(args, options)
  else
    warn "Unsupported options type #{options.class}"
  end
end

.dump_fontist_manifest_locations(manifest) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 89

def self.dump_fontist_manifest_locations(manifest)
  Tempfile.create(["fontist_locations", ".yml"]) do |f|
    f.write manifest.to_yaml
    f.flush

    yield f.path
  end
end

.help ⇒ Object 



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# File 'lib/mn2pdf.rb', line 11

def self.help
  # help message goes to STDERR (from mn2pdf v1.36)
  _, help_message, = Jvm.run
  help_message
end

.mn2pdf(args) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 58

def self.mn2pdf(args)
  stdout, stderr, status = Jvm.run(args)

  unless status.success?
    puts_error_log(stdout, stderr)

    raise StandardError.new("mn2pdf failed! #{parse_error_msg(stderr)}")
  end
end

.mn2pdf_hash(args, options) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 45

def self.mn2pdf_hash(args, options)
  manifest = options.delete(FONTS_MANIFEST)
  options_to_cmd(options, args)
  if manifest
    dump_fontist_manifest_locations(manifest) do |manifest_path|
      args << "--font-manifest" << quote(manifest_path)
      mn2pdf(args)
    end
  else
    mn2pdf(args)
  end
end

.options_to_cmd(options, cmd) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 98

def self.options_to_cmd(options, cmd)
  options.each do |k, v|
    sep = k.to_s.end_with?("=") ? "" : " "
    cmd << "#{k}#{sep}#{quote(v)}"
  end
end

.parse_error_msg(stderr) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 76

def self.parse_error_msg(stderr)
  err = stderr.split("\n").detect { |line| line.start_with? "Error: " }

  err ? err[7..-1] : stderr.strip
end

.puts_error_log(stdout, stderr) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 68

def self.puts_error_log(stdout, stderr)
  puts ["Fatal error!", "STDOUT:", stdout.strip, "STDERR:", stderr.strip]
    .join("\n")
    .split("\n")
    .map { |line| "[mn2pdf] #{line}" }
    .join("\n")
end

.quote(str) ⇒ Object 



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# File 'lib/mn2pdf.rb', line 82

def self.quote(str)
  return "" if str.nil? || str.empty?
  return str if /^'.*'$/.match(str) || /^".*"$/.match(str)

  %("#{str}")
end

.version ⇒ Object 



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# File 'lib/mn2pdf.rb', line 17

def self.version
  message, = Jvm.run(%w[-v])
  message.strip
end