🧑‍💻 Improved loading of version.rb

- split on Ruby 3.1+

Author: pboling

version_gem.gemspec

@@ -1,5 +1,18 @@
 # frozen_string_literal: true
 
+gem_version =
+  if RUBY_VERSION >= "3.1"
+    # Loading version into an anonymous module allows version.rb to get code coverage from SimpleCov!
+    # See: https://github.com/simplecov-ruby/simplecov/issues/557#issuecomment-2630782358
+    Module.new.tap { |mod| Kernel.load("lib/version_gem/version.rb", mod) }::VersionGem::Version::VERSION
+  else
+    # TODO: Remove this hack once support for Ruby 3.0 and below is removed
+    Kernel.load("lib/version_gem/version.rb")
+    g_ver = VersionGem::Version::VERSION
+    VersionGem::Version.send(:remove_const, :VERSION)
+    g_ver
+  end
+
 Gem::Specification.new do |spec|
   # Linux distros may package ruby gems differently,
   #   and securely certify them independently via alternate package management systems.
@@ -18,9 +31,7 @@ Gem::Specification.new do |spec|
   end
 
   spec.name = "version_gem"
-  # Loading version into an anonymous module allows version.rb to get code coverage from SimpleCov!
-  # See: https://github.com/simplecov-ruby/simplecov/issues/557#issuecomment-2630782358
-  spec.version = Module.new.tap { |mod| Kernel.load("lib/version_gem/version.rb", mod) }::VersionGem::Version::VERSION
+  spec.version = gem_version
   spec.authors = ["Peter Boling"]
   spec.email = ["[email protected]", "[email protected]"]