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-rw-r--r--railties/lib/ruby_version_check.rb17
1 files changed, 17 insertions, 0 deletions
diff --git a/railties/lib/ruby_version_check.rb b/railties/lib/ruby_version_check.rb
new file mode 100644
index 0000000000..68d3acc876
--- /dev/null
+++ b/railties/lib/ruby_version_check.rb
@@ -0,0 +1,17 @@
+min_release = "1.8.2 (2004-12-25)"
+ruby_release = "#{RUBY_VERSION} (#{RUBY_RELEASE_DATE})"
+if ruby_release =~ /1\.8\.3/
+ abort <<-end_message
+
+ Rails does not work with Ruby version 1.8.3.
+ Please upgrade to version 1.8.4 or downgrade to 1.8.2.
+
+ end_message
+elsif ruby_release < min_release
+ abort <<-end_message
+
+ Rails requires Ruby version #{min_release} or later.
+ You're running #{ruby_release}; please upgrade to continue.
+
+ end_message
+end