Simpler, one-liner, failsafe require in ruby? [Suggested names: require_failsafe, require_safe, require_try, require_add)
I have quite a bit of code like this:
begin require 'x/tools/cdrskin.rb' rescue LoadError; end
I also use the longer variant, e.g.,
begin require 'foobar' rescue LoadError puts 'project foobar is not available - consider '\ 'installing it via gem install foobar' end
Often, I do not need to inform the user about missing gems/projects that are tiny and not very important. In my larger ruby projects, I handle cases where a smaller project is not available or available, so I can proceed either way. It is a bit pointless to notify the user when that is me; that is why I would like to have a one-liner.
I am thinking of an API such as any of the following:
require_failsafe require_safe require_try require_add
This is for loading with a rescue LoadError without notification. If I need to notify a user then I am fine with the longer variant.
If anyone has better names, feel free to add them! I think people are more likely to remember the require-family, e. g. require 'foo.rb' or require_relative 'bar.rb' and so forth.
I also wanted to propose a stronger
import, including the possibility to refer to
.rb files without a hardcoded path (if the .rb file is moved,
all explicit requires to it, in particular from external projects, would have to change; and my vague idea is to replace this with some kind of project-specific way to
"label" files and load these files based on these "labels", but that is for another suggestion; I only want to mention it because Hiroshi Shibata made some suggestion as extension to require, and I think the use case he mentioned may also be useful to see whether ruby may get a stronger "load code in files" functionality for ruby 3.x eventually).