[rubygems/rubygems] Fix `--prefer-local` not respecting default gems

https://github.com/rubygems/rubygems/commit/3df86cd9c6

1 files changed, 18 insertions, 3 deletions

diff --git a/lib/bundler/source/rubygems.rb b/lib/bundler/source/rubygems.rb
index 36185561fa..f1d6dcb3b9 100644
--- a/lib/bundler/source/rubygems.rb
+++ b/lib/bundler/source/rubygems.rb
@@ -19,6 +19,7 @@ module Bundler
         @allow_remote = false
         @allow_cached = false
         @allow_local = options["allow_local"] || false
+        @prefer_local = false
         @checksum_store = Checksum::Store.new
 
         Array(options["remotes"]).reverse_each {|r| add_remote(r) }
@@ -30,6 +31,10 @@ module Bundler
         @caches ||= [cache_path, *Bundler.rubygems.gem_cache]
       end
 
+      def prefer_local!
+        @prefer_local = true
+      end
+
       def local_only!
         @specs = nil
         @allow_local = true
@@ -37,6 +42,10 @@ module Bundler
         @allow_remote = false
       end
 
+      def local_only?
+        @allow_local && !@allow_remote
+      end
+
       def local!
         return if @allow_local
 
@@ -139,9 +148,15 @@ module Bundler
           index.merge!(cached_specs) if @allow_cached
           index.merge!(installed_specs) if @allow_local
 
-          # complete with default specs, only if not already available in the
-          # index through remote, cached, or installed specs
-          index.use(default_specs) if @allow_local
+          if @allow_local
+            if @prefer_local
+              index.merge!(default_specs)
+            else
+              # complete with default specs, only if not already available in the
+              # index through remote, cached, or installed specs
+              index.use(default_specs)
+            end
+          end
 
           index
         end