convert all files from the given directory into the given format

convert_skp_files.rb

# convert all files from the given directory into the given format
#
# @note For SketchUp Pro 7.1+, valid extensions include dae, kmz, 3ds, dwg, dxf, fbx, obj, wrl, and xsi. SketchUp Free only supports dae and kmz. (see http://www.sketchup.com/intl/en/developer/docs/ourdoc/model#export)
#
# @param src_path [String] as path were sketchup files are stored
# @param dest_path [String] as output path after convertion
# @param export_format [String] as output format
def convert_sketchup_files src_path, dest_path, export_format
	format_available = %w(dae kmz 3ds dwg dxf fbx obj wrl xsi pdf)

	if format_available.include? export_format

		# loop on each files on directory
		Dir.foreach(src_path) do |file|
			# open the file only if it's a sketchup file
			if File.extname(file) == '.skp' and Sketchup.open_file File.join(src_path, file)
				# create the export filename 
				basename = File.basename file, '.skp'
				file_dest  = File.join dest_path, "#{basename}.dwg"

				if Sketchup.active_model.export file_dest
					puts '[*] %s saved as .%s' % [basename, export_format ]
				else
					puts '[ ] %s not saved as .%s' % [basename, export_format ]
				end
			else
				puts "[ ] can't open %s" % File.join(src_path, file)
			end
		end# next file
	else
		puts ".%s is not supported" % export_format
	end
end