Method: Update#initialize

Defined in:
lib/ncbi_taxonomy_update.rb

#initialize ⇒ Update

Returns a new instance of Update.



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# File 'lib/ncbi_taxonomy_update.rb', line 9

def initialize
	@home_dir = Dir.home
	@work_dir = @home_dir + "/.ncbi_taxonomy"
	md5_file = @work_dir + "/taxdump.tar.gz.md5"
	md5_old_file = @work_dir + "/taxdump.tar.gz.md5.old"
	@taxdb = @work_dir + "/taxonomy.db.prep"
	@taxdb_release = @work_dir + "/taxonomy.db"
	@status = nil

	# check workinng directory, if not exist, make it.
	if File.exist?(@work_dir)
		if !File.directory?(@work_dir)
			@status = "This software uses $HOME/.ncbi_taxonomy directory. However, in your home directory there is same name of file. We recommend you change that file name to another name."
			return
		else
			Dir.chdir @work_dir
			if File.exist?(md5_file)
				`rm -f #{md5_old_file}`
				File.rename(md5_file, md5_old_file)
				self.download_md5
				`diff #{md5_file} #{md5_old_file}`
				if $?.exitstatus == 0
					@status = false
					return
				else
					@status = true
					return
				end
			else
				self.download_md5
			end
		end
	else
		Dir.mkdir @work_dir
		Dir.chdir @work_dir
		self.download_md5
	end

	@status = true
	return
end