Module: Html2Pdf::Utils

Defined in:
lib/html2pdf/utils.rb

Class Method Summary collapse

Class Method Details

.softwares_installed? ⇒ Boolean

Check and verify that the proper softwares are available.

Returns:

  • (Boolean) 


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# File 'lib/html2pdf/utils.rb', line 46

def softwares_installed?
  AgileUtils::Helper.which('wkhtmltopdf') && AgileUtils::Helper.which('gs')
end

.to_pdf(filename) ⇒ Object

Convert ‘*.xhtml’ or ‘*.html’ to pdf

Parameters:

  • filename —

    input filename



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# File 'lib/html2pdf/utils.rb', line 22

def to_pdf(filename)
  fail "Invalid input file #{filename}" unless File.exist?(filename)
  command = [
    'wkhtmltopdf',
    '--margin-top 4',
    '--margin-bottom 4',
    '--margin-left 4',
    '--margin-right 4',
    '--header-center "[webpage] :: [page]/[topage]"',
    '--header-spacing 1',
    '--header-font-size 8',
    '--header-line',
    '--footer-spacing 1',
    '--footer-font-size 8',
    '--footer-line',
    "#{filename}",
    "#{filename}.pdf",
    '> /dev/null']
  _stdin, _stderr, status = Open3.capture3(command.join(' '))
  fail "Problem processing #{filename}" unless status.success?
end

.to_pdfs(files) ⇒ Object

Batch convert to pdf using ‘wkhtmltopdf` tool

Parameters:

  • files (Array<String>) —

    the input file list

  • base_dir (String) —

    the base directory



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# File 'lib/html2pdf/utils.rb', line 12

def to_pdfs(files)
  files.each_with_index do |file, index|
    puts "Convert file #{index + 1} of #{files.size} : #{file}"
    to_pdf(file)
  end
end