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 26

def initialize(root_dir)
  @root_dir = root_dir
  @root_fullpath = File.absolute_path(root_dir)
  @config = default_config
  @work_dir = ".rblatex_work"
  @item_list = RbLatex::ItemList.new
  @meta_info = RbLatex::MetaInfo.new
  @latex_cmd = "uplatex"
  @dvipdfmx_cmd = "dvipdfmx"
  @document_class = ["jlreq", "book,b5paper,openany"]
end

Instance Attribute Details

#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

#work_dir ⇒ Object

Returns the value of attribute work_dir.



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# File 'lib/rb_latex/maker.rb', line 24

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 42

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 124

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

#copy_files(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 57

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

#default_config ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 38

def default_config
  {}
end

#exec_dvipdfmx(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 85

def exec_dvipdfmx(dir)
  cmd = "#{@dvipdfmx_cmd} book.dvi"
  out, status = Open3.capture2e(cmd)
  if !status.success?
    @error_log = out
    raise RbLatex::Error, "fail to exec latex #{i}: #{cmd}"
  end
  FileUtils.cp("book.pdf", File.join(@root_fullpath, "book.pdf"))
end

#exec_latex(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 74

def exec_latex(dir)
  cmd = "#{@latex_cmd} book.tex"
  3.times do |i|
    out, status = Open3.capture2e(cmd)
    if !status.success?
      @error_log = out
      raise RbLatex::Error, "fail to exec latex #{i}: #{cmd}"
    end
  end
end

#generate_pdf(filename, debug: nil) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 46

def generate_pdf(filename, debug: nil)
  in_working_dir(debug) do |dir|
    copy_files(dir)
    Dir.chdir(dir) do
      generate_src(dir)
      exec_latex(dir)
      exec_dvipdfmx(dir)
    end
  end
end

#generate_src(dir) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 64

def generate_src(dir)
  @item_list.generate(dir)
  @dclass, @dclass_opt = @document_class
  if @meta_info.page_progression_direction == "rtl" && !@dclass_opt.split(",").include?("tate")
    @dclass_opt += ",tate"
  end
  book_tex = apply_template("book.tex.erb")
  File.write(File.join(dir, "book.tex"), book_tex)
end

#in_working_dir(debug) ⇒ Object 



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# File 'lib/rb_latex/maker.rb', line 103

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 114

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