1 files changed, 19 insertions, 0 deletions
diff --git a/lib/rubygems/gemspec_helpers.rb b/lib/rubygems/gemspec_helpers.rb
new file mode 100644
index 0000000000..2b20fcafa1
--- /dev/null
+++ b/lib/rubygems/gemspec_helpers.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require_relative "../rubygems"
+
+##
+# Mixin methods for commands that work with gemspecs.
+
+module Gem::GemspecHelpers
+  def find_gemspec(glob = "*.gemspec")
+    gemspecs = Dir.glob(glob).sort
+
+    if gemspecs.size > 1
+      alert_error "Multiple gemspecs found: #{gemspecs}, please specify one"
+      terminate_interaction(1)
+    end
+
+    gemspecs.first
+  end
+end