Class: RbLatex::Maker

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/rb_latex/maker.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root_dir) ⇒ Maker

Returns a new instance of Maker.



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# File 'lib/rb_latex/maker.rb', line 25

def initialize(root_dir)
  @root_dir = root_dir
  @root_fullpath = File.absolute_path(root_dir)
  @work_dir = ".rblatex_work"
  @item_list = RbLatex::ItemList.new
  @meta_info = RbLatex::MetaInfo.new
  @latex_command = "uplatex"
  @dvipdf_command = "dvipdfmx"
  @document_class = ["jlreq", "book,b5paper,openany"]
  @debug = nil
  @book_name = "book"
  @default_option = nil
end

Instance Attribute Details

#book_name ⇒ Object

Returns the value of attribute book_name.



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# File 'lib/rb_latex/maker.rb', line 14

def book_name
  @book_name
end

#debug ⇒ Object

Returns the value of attribute debug.



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# File 'lib/rb_latex/maker.rb', line 13

def debug
  @debug
end

#document_class ⇒ Object

Returns the value of attribute document_class.



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# File 'lib/rb_latex/maker.rb', line 10

def document_class
  @document_class
end

#dvipdf_command ⇒ Object

Returns the value of attribute dvipdf_command.



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# File 'lib/rb_latex/maker.rb', line 12

def dvipdf_command
  @dvipdf_command
end

#latex_command ⇒ Object

Returns the value of attribute latex_command.



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# File 'lib/rb_latex/maker.rb', line 11

def latex_command
  @latex_command
end

#work_dir ⇒ Object

Returns the value of attribute work_dir.



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# File 'lib/rb_latex/maker.rb', line 15

def work_dir
  @work_dir
end

Instance Method Details

#add_item(filename, content) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 39

def add_item(filename, content)
  @item_list.add_item(filename, content)
end

#apply_template(template_file) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 137

def apply_template(template_file)
  template = File.read(File.join(RbLatex::TEMPLATES_DIR, template_file))
  return ERB.new(template).result(binding)
end

#book_filename(ext = ".pdf") ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 43

def book_filename(ext = ".pdf")
  "#{@book_name}#{ext}"
end

#compile_latex(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 80

def compile_latex(dir)
  texfile = book_filename(".tex")
  cmd = "#{@latex_command} #{texfile}"
  3.times do |i|
    out, status = Open3.capture2e(cmd)
    if !status.success?
      @error_log = out
      if @debug
        print STDERR, @error_log, "\n"
      end
      raise RbLatex::Error, "fail to exec latex (#{i}): #{cmd}"
    end
  end
  dvifile = book_filename(".dvi")
  if File.exist?(dvifile)
    exec_dvipdf(dvifile)
  end
end

#copy_files(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 58

def copy_files(dir)
  Dir.entries(@root_dir).each do |path|
    next if path == "." or path == ".." or path == @work_dir
    FileUtils.cp_r(File.join(@root_dir, path), dir, dereference_root: true)
  end
end

#exec_dvipdf(dvifile) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 99

def exec_dvipdf(dvifile)
  cmd = "#{@dvipdf_command} #{dvifile}"
  out, status = Open3.capture2e(cmd)
  if !status.success?
    @error_log = out
    raise RbLatex::Error, "fail to exec dvipdf: #{cmd}"
  end
end

#generate_pdf(filename, debug: nil) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 47

def generate_pdf(filename, debug: nil)
  in_working_dir(debug) do |dir|
    copy_files(dir)
    Dir.chdir(dir) do
      generate_src(dir)
      compile_latex(dir)
    end
    FileUtils.cp(File.join(dir, book_filename), filename)
  end
end

#generate_src(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 65

def generate_src(dir)
  @item_list.generate(dir)
  @dclass, @dclass_option = @document_class
  if @meta_info.page_progression_direction == "rtl" && !@dclass_option.split(",").include?("tate")
    @dclass_option += ",tate"
  end
  if @latex_command =~ /lualatex/
    @default_option = "lualatex"
  end
  book_tex = apply_template("book.tex.erb")
  File.write(File.join(dir, book_filename(".tex")), book_tex)
  rblatexdefault_sty = apply_template("rblatexdefault.sty")
  File.write(File.join(dir, "rblatexdefault.sty"), rblatexdefault_sty)
end

#in_working_dir(debug) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 116

def in_working_dir(debug)
  work_dir = prepare_working_dir(debug)
  begin
    yield work_dir
  ensure
    if !debug
      FileUtils.remove_entry_secure(work_dir)
    end
  end
end

#prepare_working_dir(debug) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 127

def prepare_working_dir(debug)
  if !debug
    Dir.mktmpdir('rblatex')
  else
    FileUtils.rm_rf(@work_dir)
    Dir.mkdir(@work_dir)
    File.absolute_path(@work_dir)
  end
end