Rubyvor and Ruby 3.0 (error loading 'rexml/document')

[mike-bourgeous]

Hi there!

Thanks for Rubyvor! I use Rubyvor as one of the switchable Delaunay Triangulation backends in my mb-geometry gem. While testing with Ruby 3.0.1 I found that Rubyvor depends on 'GeoRuby' (capitalized), which appears to have been superseded by 'georuby' (lowercase). Uppercase GeoRuby in turn tries to require 'rexml/document', but REXML is no longer included by default in Ruby and must be included as a gem. This causes the following error:

LoadError:
  cannot load such file -- rexml/document
# GeoRuby-1.3.4/lib/geo_ruby/simple_features/geometry.rb:181:in `require'
# GeoRuby-1.3.4/lib/geo_ruby/simple_features/geometry.rb:181:in `<class:Geometry>'
# GeoRuby-1.3.4/lib/geo_ruby/simple_features/geometry.rb:8:in `<module:SimpleFeatures>'        
# GeoRuby-1.3.4/lib/geo_ruby/simple_features/geometry.rb:2:in `<module:GeoRuby>'
# GeoRuby-1.3.4/lib/geo_ruby/simple_features/geometry.rb:1:in `<top (required)>'
# GeoRuby-1.3.4/lib/geo_ruby.rb:2:in `require'
# GeoRuby-1.3.4/lib/geo_ruby.rb:2:in `<top (required)>'
# rubyvor-0.1.4/lib/ruby_vor/geo_ruby_extensions.rb:1:in `require'
# rubyvor-0.1.4/lib/ruby_vor/geo_ruby_extensions.rb:1:in `<top (required)>'
# rubyvor-0.1.4/lib/ruby_vor.rb:8:in `require'
# rubyvor-0.1.4/lib/ruby_vor.rb:8:in `<top (required)>'

Workaround

For anyone else who uses Rubyvor, the following are possible workarounds in your own projects:

• Add 'georuby' (lowercase) as an explicit dependency ahead of Rubyvor, so that it comes before the old 'GeoRuby' in Ruby's load path.
• Add 'rexml' as an explicit dependency.

Possible fixes

These might work as fixes for Rubyvor:

• Ideal: replace 'GeoRuby' with 'georuby' in the gemspec, if it's compatible with all aspects of Rubyvor
• Alternative: Add 'rexml' to the gemspec