Print warning when running potentially problematic rubygems + ruby co…

…mbinations Co-authored-by: André Arko <andre@arko.net>
rubygems · Dec 20, 2021 · d6df0b7 · d6df0b7
1 parent 7e255c5
commit d6df0b7
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diff --git a/bundler/exe/bundle b/bundler/exe/bundle
@@ -18,6 +18,15 @@ end
 # Workaround for non-activated bundler spec due to missing https://github.com/rubygems/rubygems/commit/4e306d7bcdee924b8d80ca9db6125aa59ee4e5a3
 gem "bundler", Bundler::VERSION if Gem.rubygems_version < Gem::Version.new("2.6.2")
 
+if Gem.rubygems_version < Gem::Version.new("3.2.3") && Gem.ruby_version < Gem::Version.new("2.6.a") && !ENV["BUNDLER_NO_OLD_RUBYGEMS_WARNING"]
+  Bundler.ui.warn \
+    "Your RubyGems version (#{Gem::VERSION})) has a bug that prevents " \
+    "`required_ruby_version` from working for Bundler. Any scripts that use " \
+    "`gem install bundler` will break as soon as Bundler drops support for " \
+    "your Ruby version. Please upgrade RubyGems to avoid future breakage " \
+    "and silence this warning by running `gem update --system 3.2.3`"
+end
+
 if File.exist?(base_path)
   require_relative "../lib/bundler/friendly_errors"
 else

diff --git a/bundler/spec/spec_helper.rb b/bundler/spec/spec_helper.rb
@@ -72,6 +72,7 @@ def self.ruby=(ruby)
     require_relative "support/rubygems_ext"
     Spec::Rubygems.test_setup
     ENV["BUNDLER_SPEC_RUN"] = "true"
+    ENV["BUNDLER_NO_OLD_RUBYGEMS_WARNING"] = "true"
     ENV["BUNDLE_USER_CONFIG"] = ENV["BUNDLE_USER_CACHE"] = ENV["BUNDLE_USER_PLUGIN"] = nil
     ENV["RUBYGEMS_GEMDEPS"] = nil
     ENV["XDG_CONFIG_HOME"] = nil