Fix plugin installation when the plugin depends upon Bundler

3 files changed, 7 insertions, 3 deletions

diff --git a/lib/bundler/dsl.rb b/lib/bundler/dsl.rb
index 5435512810..b91e4034a7 100644
--- a/lib/bundler/dsl.rb
+++ b/lib/bundler/dsl.rb
@@ -134,7 +134,7 @@ module Bundler
       if options.key?("type")
         options["type"] = options["type"].to_s
         unless Plugin.source?(options["type"])
-          raise "No sources available for #{options["type"]}"
+          raise InvalidOption, "No plugin sources available for #{options["type"]}"
         end
 
         unless block_given?
diff --git a/lib/bundler/source/metadata.rb b/lib/bundler/source/metadata.rb
index 63d16365c5..e35a52e597 100644
--- a/lib/bundler/source/metadata.rb
+++ b/lib/bundler/source/metadata.rb
@@ -33,7 +33,7 @@ module Bundler
         {}
       end
 
-      def install(spec, opts)
+      def install(spec, _opts = {})
         Bundler.ui.info "Using #{version_message(spec)}"
         nil
       end
@@ -50,6 +50,10 @@ module Bundler
       def hash
         self.class.hash
       end
+
+      def version_message(spec)
+        "#{spec.name} #{spec.version}"
+      end
     end
   end
 end
diff --git a/spec/plugins/source/example_spec.rb b/spec/plugins/source/example_spec.rb
index 69e33e4077..28fdd6c03f 100644
--- a/spec/plugins/source/example_spec.rb
+++ b/spec/plugins/source/example_spec.rb
@@ -172,7 +172,7 @@ RSpec.describe "real source plugins" do
       end
 
       it "installs" do
-        bundle "install"
+        bundle! "install"
 
         expect(the_bundle).to include_gems("a-path-gem 1.0")
       end