Module: ReVIEW::MakerHelper

Included in:
EPUBMaker, WEBMaker
Defined in:
lib/review/makerhelper.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.bindir ⇒ Object

Return review/bin directory



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# File 'lib/review/makerhelper.rb', line 16

def bindir
  Pathname.new("#{Pathname.new(__FILE__).realpath.dirname}/../../bin").realpath
end

.copy_images_to_dir(from_dir, to_dir, options = {}) ⇒ Object

Copy image files under from_dir to to_dir recursively

Args

from_dir

path to the directory which has image files to be copied

to_dir

path to the directory to which the image files are copied

options

used to specify optional operations during copy

Returns

list of image files

Options

:convert

Conversion rule

Examples

copy_images_to_dir("/path/to/foo", "/path/to/bar", :convert => {:eps => :png})

Image files are copied recursively, and each ‘.eps’ file is converted into ‘.eps.png’



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# File 'lib/review/makerhelper.rb', line 37

def copy_images_to_dir(from_dir, to_dir, options = {})
  image_files = []

  Dir.open(from_dir) do |dir|
    dir.each do |fname|
      next if fname =~ /^\./
      if FileTest.directory?("#{from_dir}/#{fname}")
        image_files += copy_images_to_dir("#{from_dir}/#{fname}", "#{to_dir}/#{fname}", options)
      else
        FileUtils.mkdir_p(to_dir) unless File.exist?(to_dir)

        is_converted = false
        (options[:convert] || {}).each do |orig_type, conv_type|
          next unless /\.#{orig_type}$/ =~ fname
          is_converted = system("convert #{from_dir}/#{fname} #{to_dir}/#{fname}.#{conv_type}")
          image_files << "#{from_dir}/#{fname}.#{conv_type}"
        end

        exts = options[:exts] || %w[png gif jpg jpeg svg pdf eps ai tif psd]
        exts_str = exts.join('|')
        if !is_converted && fname =~ /\.(#{exts_str})$/i
          FileUtils.cp "#{from_dir}/#{fname}", to_dir
          image_files << "#{from_dir}/#{fname}"
        end
      end
    end
  end

  image_files
end

Instance Method Details

#cleanup_mathimg ⇒ Object 



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# File 'lib/review/makerhelper.rb', line 69

def cleanup_mathimg
  math_dir = "./#{@config['imagedir']}/_review_math"
  if @config['imgmath'] && Dir.exist?(math_dir)
    FileUtils.rm_rf(math_dir)
  end
end

#default_imgmath_preamble ⇒ Object 



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# File 'lib/review/makerhelper.rb', line 76

def default_imgmath_preamble
  <<-EOB
\\documentclass[uplatex,a3paper,landscape]{jsarticle}
\\usepackage[deluxe,uplatex]{otf}
\\usepackage[T1]{fontenc}
\\usepackage{textcomp}
\\usepackage{lmodern}
\\usepackage[dvipdfmx]{graphicx}
\\usepackage[dvipdfmx,table]{xcolor}
\\usepackage[utf8]{inputenc}
\\usepackage{ascmac}
\\usepackage{float}
\\usepackage{alltt}
\\usepackage{amsmath}
\\usepackage{amssymb}
\\usepackage{amsfonts}
\\usepackage{anyfontsize}
\\usepackage{bm}
\\pagestyle{empty}
% \\setpaperwidth{1000mm}
EOB
end

#make_math_images(math_dir) ⇒ Object 



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# File 'lib/review/makerhelper.rb', line 99

def make_math_images(math_dir)
  fontsize = @config['imgmath_options']['fontsize'].to_f
  lineheight = @config['imgmath_options']['lineheight'].to_f

  texsrc = default_imgmath_preamble
  if @config['imgmath_options']['preamble_file'] && File.readable?(@config['imgmath_options']['preamble_file'])
    texsrc = File.read(@config['imgmath_options']['preamble_file'])
  end

  texsrc << <<-EOB
\\begin{document}
\\fontsize{#{fontsize}}{#{lineheight}}\\selectfont
\\input{__IMGMATH_BODY__}
\\end{document}
EOB

  math_dir = File.realpath(math_dir)
  Dir.mktmpdir do |tmpdir|
    FileUtils.cp([File.join(math_dir, '__IMGMATH_BODY__.tex'),
                  File.join(math_dir, '__IMGMATH_BODY__.map')],
                 tmpdir)
    tex_path = File.join(tmpdir, '__IMGMATH__.tex')
    File.write(tex_path, texsrc)

    begin
      case @config['imgmath_options']['converter']
      when 'pdfcrop'
        make_math_images_pdfcrop(tmpdir, tex_path, math_dir)
      when 'dvipng'
        make_math_images_dvipng(tmpdir, tex_path, math_dir)
      else
        error "unknown math converter error. imgmath_options/converter parameter should be 'pdfcrop' or 'dvipng'."
      end
    rescue CompileError
      FileUtils.cp([tex_path,
                    File.join(File.dirname(tex_path), '__IMGMATH__.log')],
                   math_dir)
      error "LaTeX math compile error. See #{math_dir}/__IMGMATH__.log for details."
    end
  end
  FileUtils.rm_f([File.join(math_dir, '__IMGMATH_BODY__.tex'),
                  File.join(math_dir, '__IMGMATH_BODY__.map')])
end

#make_math_images_dvipng(dir, tex_path, math_dir) ⇒ Object 



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# File 'lib/review/makerhelper.rb', line 218

def make_math_images_dvipng(dir, tex_path, math_dir)
  Dir.chdir(dir) do
    dvi_path = '__IMGMATH__.dvi'
    out, status = Open3.capture2e(*[@config['texcommand'], @config['texoptions'].shellsplit, tex_path].flatten.compact)
    if !status.success? || !File.exist?(dvi_path)
      raise CompileError
    end

    File.open('__IMGMATH_BODY__.map') do |f|
      page = 0
      f.each_line do |key|
        page += 1
        key.chomp!
        args = @config['imgmath_options']['dvipng_cmd'].shellsplit
        args.map! do |m|
          m.sub('%i', dvi_path).
            sub('%o', File.join(math_dir, "_gen_#{key}.#{@config['imgmath_options']['format']}")).
            sub('%O', File.join(math_dir, "_gen_#{key}")).
            sub('%p', page.to_s)
        end
        out, status = Open3.capture2e(*args)
        unless status.success?
          warn "error in dvipng. Error log:\n#{out}"
          raise CompileError
        end
      end
    end
  end
end

#make_math_images_pdfcrop(dir, tex_path, math_dir) ⇒ Object 



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# File 'lib/review/makerhelper.rb', line 143

def make_math_images_pdfcrop(dir, tex_path, math_dir)
  Dir.chdir(dir) do
    dvi_path = '__IMGMATH__.dvi'
    pdf_path = '__IMGMATH__.pdf'
    out, status = Open3.capture2e(*[@config['texcommand'], @config['texoptions'].shellsplit, tex_path].flatten.compact)
    if !status.success? || (!File.exist?(dvi_path) && !File.exist?(pdf_path))
      raise CompileError
    end
    if File.exist?(dvi_path)
      out, status = Open3.capture2e(*[@config['dvicommand'], @config['dvioptions'].shellsplit, dvi_path].flatten.compact)
      if !status.success? || !File.exist?(pdf_path)
        warn "error in #{@config['dvicommand']}. Error log:\n#{out}"
        raise CompileError
      end
    end

    args = @config['imgmath_options']['pdfcrop_cmd'].shellsplit
    args.map! do |m|
      m.sub('%i', pdf_path).
        sub('%o', '__IMGMATH__pdfcrop.pdf')
    end
    out, status = Open3.capture2e(*args)
    unless status.success?
      warn "error in pdfcrop. Error log:\n#{out}"
      raise CompileError
    end
    pdf_path = '__IMGMATH__pdfcrop.pdf'
    pdf_path2 = pdf_path

    File.open('__IMGMATH_BODY__.map') do |f|
      page = 0
      f.each_line do |key|
        page += 1
        key.chomp!
        if File.exist?(File.join(math_dir, "_gen_#{key}.#{@config['imgmath_options']['format']}"))
          # made already
          next
        end

        if @config['imgmath_options']['extract_singlepage']
          # if extract_singlepage = true, split each page
          args = @config['imgmath_options']['pdfextract_cmd'].shellsplit

          args.map! do |m|
            m.sub('%i', pdf_path).
              sub('%o', "__IMGMATH__pdfcrop_p#{page}.pdf").
              sub('%O', "__IMGMATH__pdfcrop_p#{page}").
              sub('%p', page.to_s)
          end
          out, status = Open3.capture2e(*args)
          unless status.success?
            warn "error in pdf extracting. Error log:\n#{out}"
            raise CompileError
          end

          pdf_path2 = "__IMGMATH__pdfcrop_p#{page}.pdf"
        end

        args = @config['imgmath_options']['pdfcrop_pixelize_cmd'].shellsplit
        args.map! do |m|
          m.sub('%i', pdf_path2).
            sub('%o', File.join(math_dir, "_gen_#{key}.#{@config['imgmath_options']['format']}")).
            sub('%O', File.join(math_dir, "_gen_#{key}")).
            sub('%p', page.to_s)
        end
        out, status = Open3.capture2e(*args)
        unless status.success?
          warn "error in pdf pixelizing. Error log:\n#{out}"
          raise CompileError
        end
      end
    end
  end
end