Class: Microstation::Changer

Inherits:
Object
  • Object
show all
Includes:
FileTests
Defined in:
lib/microstation/changer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from FileTests

#check_is_dgn, #check_is_drawing, #drawing?, #drawing_type?, #microstation_drawing?

Constructor Details

#initialize(template, output_dir: nil, app: nil, name: nil) ⇒ Changer

Returns a new instance of Changer.



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# File 'lib/microstation/changer.rb', line 9

def initialize(template, output_dir: nil, app: nil, name: nil)
  check_is_dgn(template)
  @template = template
  @template_filename = File.basename(template)
  @the_app = app
  @output_dir = output_dir || default_outdir(name)
  @name = name || default_name
end

Instance Attribute Details

#template ⇒ Object (readonly)

Returns the value of attribute template.



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# File 'lib/microstation/changer.rb', line 7

def template
  @template
end

#template_filename ⇒ Object (readonly)

Returns the value of attribute template_filename.



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# File 'lib/microstation/changer.rb', line 7

def template_filename
  @template_filename
end

#the_app ⇒ Object (readonly)

Returns the value of attribute the_app.



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# File 'lib/microstation/changer.rb', line 7

def the_app
  @the_app
end

Instance Method Details

#change_in_tempfile(app, &block) ⇒ Object 



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# File 'lib/microstation/changer.rb', line 37

def change_in_tempfile(app, &block)
  path = Pathname(File.join(::Dir.tmpdir, "#{template_filename}_#{Time.now.to_i}_#{rand(1000)}"))
  app.new_drawing(path, seedfile: @template) do |drawing|
    if block_given?
      block.call(drawing)
    else
      default_block.call(drawing)
    end
  end
  path
rescue MultipleUpdateError => e
  puts "Error while #change_into_tempfile: #{e.message}"
  raise e
end

#change_once_in_tempfile(&block) ⇒ Object 



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# File 'lib/microstation/changer.rb', line 52

def change_once_in_tempfile(&block)
  ::Microstation.run do |app|
    change_in_tempfile(app, &block)
  end
end

#default_block ⇒ Object 



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# File 'lib/microstation/changer.rb', line 58

def default_block
  ->(d) { d }
end

#default_name ⇒ Object 



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# File 'lib/microstation/changer.rb', line 66

def default_name
  template_filename
end

#default_outdir(_name = nil) ⇒ Object 



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# File 'lib/microstation/changer.rb', line 62

def default_outdir(_name = nil)
  Pathname.getwd
end

#ensure_output_path(odir) ⇒ Object 



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# File 'lib/microstation/changer.rb', line 18

def ensure_output_path(odir)
  path = Pathname(odir)
  path.mkpath unless path.directory?
  path
end

#run(name: nil, output_dir: nil, &block) ⇒ Object 



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# File 'lib/microstation/changer.rb', line 24

def run(name: nil, output_dir: nil, &block)
  lname = name || @name
  loutput_dir = output_dir || @output_dir
  output_path = ensure_output_path(loutput_dir)
  newname = output_path + lname
  tmp_dgn = the_app ? change_in_tempfile(the_app, &block) : change_once_in_tempfile(&block)
  FileUtils.mv(tmp_dgn.to_s, newname.to_s)
  puts "Saved drawing #{newname}"
rescue StandardError => e
  puts 'error in changing file'
  raise e
end