Add NextRails.current? method

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 - [BUGFIX: example](https://github.com/fastruby/next_rails/pull/<number>)
 
+- [FEATURE: Add `NextRails.current?` as the inverse of `NextRails.next?`](https://github.com/fastruby/next_rails/pull/174)
+
 * Your changes/patches go here.
 
 # v1.4.8 / 2026-03-23 [(commits)](https://github.com/fastruby/next_rails/compare/v1.4.7...v1.4.8)

lib/next_rails.rb

@@ -23,6 +23,14 @@ def self.next?
     @@next_bundle_gemfile = File.exist?(ENV["BUNDLE_GEMFILE"]) && File.basename(ENV["BUNDLE_GEMFILE"]) == "Gemfile.next"
   end
 
+  # This method is the inverse of `NextRails.next?`. It returns true when your
+  # application is running with the current set of dependencies.
+  #
+  # @return [Boolean]
+  def self.current?
+    !next?
+  end
+
   # This method will reset the @@next_bundle_gemfile variable. Then next time
   # you call `NextRails.next?` it will check the environment once again.
   def self.reset_next_bundle_gemfile

spec/next_rails_spec.rb

@@ -51,4 +51,37 @@
     end
   end
 
+  describe "NextRails.current?" do
+    context "when BUNDLE_GEMFILE is not set" do
+      it "returns true" do
+        NextRails.reset_next_bundle_gemfile
+        expect(NextRails.current?).to be_truthy
+      end
+    end
+
+    context "when BUNDLE_GEMFILE is set" do
+      context "when it is set to Gemfile.next" do
+        it "returns false" do
+          FileUtils.touch("Gemfile.next")
+          NextRails.reset_next_bundle_gemfile
+
+          with_env("BUNDLE_GEMFILE" => "Gemfile.next")
+          expect(NextRails.current?).to be_falsey
+        end
+      end
+
+      context "when it is set to something else" do
+        it "returns true" do
+          FileUtils.touch("Gemfile4")
+          NextRails.reset_next_bundle_gemfile
+
+          with_env("BUNDLE_GEMFILE" => "Gemfile4")
+          expect(NextRails.current?).to be_truthy
+
+          FileUtils.rm("Gemfile4")
+        end
+      end
+    end
+  end
+
 end