[rubygems/rubygems] Add Specification#lock_name and use that when dealing with checksums

https://github.com/rubygems/rubygems/commit/8e2c5748d9

lib/bundler/checksum.rb

@@ -190,7 +190,7 @@ module Bundler
       def replace(spec, checksum)
         return unless checksum
 
-        lock_name = spec.name_tuple.lock_name
+        lock_name = spec.lock_name
         @store_mutex.synchronize do
           existing = fetch_checksum(lock_name, checksum.algo)
           if !existing || existing.same_source?(checksum)
@@ -204,7 +204,7 @@ module Bundler
       def register(spec, checksum)
         return unless checksum
 
-        register_checksum(spec.name_tuple.lock_name, checksum)
+        register_checksum(spec.lock_name, checksum)
       end
 
       def merge!(other)
@@ -216,7 +216,7 @@ module Bundler
       end
 
       def to_lock(spec)
-        lock_name = spec.name_tuple.lock_name
+        lock_name = spec.lock_name
         checksums = @store[lock_name]
         if checksums
           "#{lock_name} #{checksums.values.map(&:to_lock).sort.join(",")}"

lib/bundler/rubygems_ext.rb

@@ -262,6 +262,10 @@ module Gem
       !default_gem? && !File.directory?(full_gem_path)
     end
 
+    def lock_name
+      @lock_name ||= name_tuple.lock_name
+    end
+
     unless VALIDATES_FOR_RESOLUTION
       def validate_for_resolution
         SpecificationPolicy.new(self).validate_for_resolution

spec/bundler/bundler/lockfile_parser_spec.rb

@@ -138,7 +138,7 @@ RSpec.describe Bundler::LockfileParser do
         expect(subject.ruby_version).to eq ruby_version
         rake_spec = specs.last
         checksums = subject.sources.last.checksum_store.to_lock(specs.last)
-        expect(checksums).to eq("#{rake_spec.name_tuple.lock_name} #{rake_checksums.map(&:to_lock).sort.join(",")}")
+        expect(checksums).to eq("#{rake_spec.lock_name} #{rake_checksums.map(&:to_lock).sort.join(",")}")
       end
     end