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-rw-r--r--railties/lib/rails/ruby_version_check.rb15
1 files changed, 15 insertions, 0 deletions
diff --git a/railties/lib/rails/ruby_version_check.rb b/railties/lib/rails/ruby_version_check.rb
new file mode 100644
index 0000000000..f8d3311156
--- /dev/null
+++ b/railties/lib/rails/ruby_version_check.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+if RUBY_VERSION < "2.4.1" && RUBY_ENGINE == "ruby"
+ desc = defined?(RUBY_DESCRIPTION) ? RUBY_DESCRIPTION : "ruby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE})"
+ abort <<-end_message
+
+ Rails 6 requires Ruby 2.4.1 or newer.
+
+ You're running
+ #{desc}
+
+ Please upgrade to Ruby 2.4.1 or newer to continue.
+
+ end_message
+end