1 files changed, 20 insertions, 0 deletions
diff --git a/lib/bundler/feature_flag.rb b/lib/bundler/feature_flag.rb
new file mode 100644
index 0000000000..dea8abedba
--- /dev/null
+++ b/lib/bundler/feature_flag.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Bundler
+  class FeatureFlag
+    (1..10).each {|v| define_method("bundler_#{v}_mode?") { @major_version >= v } }
+
+    def removed_major?(target_major_version)
+      @major_version > target_major_version
+    end
+
+    def deprecated_major?(target_major_version)
+      @major_version >= target_major_version
+    end
+
+    def initialize(bundler_version)
+      @bundler_version = Gem::Version.create(bundler_version)
+      @major_version = @bundler_version.segments.first
+    end
+  end
+end