From b500e8fab445d5a4ad91fd71e622aff88d0c7dd6 Mon Sep 17 00:00:00 2001
From: Daniel Niknam <mhmd.niknam@gmail.com>
Date: Sat, 24 Jul 2021 17:25:08 +1000
Subject: [PATCH] [rubygems/rubygems] Implement
 Bundler::SourceList#implicit_global_source?

This method is created to tell whether any global source exist in the object or not and it will be used by `Bundler:Dsl` to print a warning if no global source has been defined in the Gemfile.

https://github.com/rubygems/rubygems/commit/422fec4438
---
 lib/bundler/source_list.rb               |  4 ++++
 spec/bundler/bundler/source_list_spec.rb | 15 +++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/lib/bundler/source_list.rb b/lib/bundler/source_list.rb
index 113d49ba72..c7dfa3d797 100644
--- a/lib/bundler/source_list.rb
+++ b/lib/bundler/source_list.rb
@@ -37,6 +37,10 @@ module Bundler
       global_rubygems_source.multiple_remotes?
     end
 
+    def implicit_global_source?
+      global_rubygems_source.no_remotes?
+    end
+
     def add_path_source(options = {})
       if options["gemspec"]
         add_source_to_list Source::Gemspec.new(options), path_sources
diff --git a/spec/bundler/bundler/source_list_spec.rb b/spec/bundler/bundler/source_list_spec.rb
index c2d1978b29..f860e9ff58 100644
--- a/spec/bundler/bundler/source_list_spec.rb
+++ b/spec/bundler/bundler/source_list_spec.rb
@@ -441,4 +441,19 @@ RSpec.describe Bundler::SourceList do
       source_list.remote!
     end
   end
+
+  describe "implicit_global_source?" do
+    context "when a global rubygem source provided" do
+      it "returns a falsy value" do
+        source_list.add_global_rubygems_remote("https://rubygems.org")
+
+        expect(source_list.implicit_global_source?).to be_falsey
+      end
+    end
+    context "when no global rubygem source provided" do
+      it "returns a truthy value" do
+        expect(source_list.implicit_global_source?).to be_truthy
+      end
+    end
+  end
 end