Extract md5 checking to SharedHelpers

4 files changed, 20 insertions, 12 deletions

diff --git a/lib/bundler/fetcher/compact_index.rb b/lib/bundler/fetcher/compact_index.rb
index 97de88101b..ec20f18edd 100644
--- a/lib/bundler/fetcher/compact_index.rb
+++ b/lib/bundler/fetcher/compact_index.rb
@@ -61,7 +61,7 @@ module Bundler
       compact_index_request :fetch_spec
 
       def available?
-        return nil unless md5_available?
+        return nil unless SharedHelpers.md5_available?
         user_home = Bundler.user_home
         return nil unless user_home.directory? && user_home.writable?
         # Read info file checksums out of /versions, so we can know if gems are up to date
@@ -120,16 +120,6 @@ module Bundler
           Net::HTTPNotModified.new(nil, nil, nil)
         end
       end
-
-      def md5_available?
-        require "openssl"
-        OpenSSL::Digest::MD5.digest("")
-        true
-      rescue LoadError
-        true
-      rescue OpenSSL::Digest::DigestError
-        false
-      end
     end
   end
 end
diff --git a/lib/bundler/shared_helpers.rb b/lib/bundler/shared_helpers.rb
index 07880387f0..bf8534023a 100644
--- a/lib/bundler/shared_helpers.rb
+++ b/lib/bundler/shared_helpers.rb
@@ -187,6 +187,19 @@ module Bundler
       msg
     end
 
+    def md5_available?
+      return @md5_available if defined?(@md5_available)
+      @md5_available = begin
+        require "openssl"
+        OpenSSL::Digest::MD5.digest("")
+        true
+      rescue LoadError
+        true
+      rescue OpenSSL::Digest::DigestError
+        false
+      end
+    end
+
   private
 
     def find_gemfile(order_matters = false)
diff --git a/lib/bundler/source/rubygems/remote.rb b/lib/bundler/source/rubygems/remote.rb
index b49e645506..e60c1f9055 100644
--- a/lib/bundler/source/rubygems/remote.rb
+++ b/lib/bundler/source/rubygems/remote.rb
@@ -20,6 +20,8 @@ module Bundler
         #
         def cache_slug
           @cache_slug ||= begin
+            return nil unless SharedHelpers.md5_available?
+
             cache_uri = original_uri || uri
 
             uri_parts = [cache_uri.host, cache_uri.user, cache_uri.port, cache_uri.path]
diff --git a/spec/bundler/fetcher/compact_index_spec.rb b/spec/bundler/fetcher/compact_index_spec.rb
index e624af73e1..4a8824ca7f 100644
--- a/spec/bundler/fetcher/compact_index_spec.rb
+++ b/spec/bundler/fetcher/compact_index_spec.rb
@@ -45,7 +45,10 @@ RSpec.describe Bundler::Fetcher::CompactIndex do
       end
 
       context "when OpenSSL is FIPS-enabled", :ruby => ">= 2.0.0" do
-        before { stub_const("OpenSSL::OPENSSL_FIPS", true) }
+        before do
+          Bundler::SharedHelpers.remove_instance_variable(:@md5_available)
+          stub_const("OpenSSL::OPENSSL_FIPS", true)
+        end
 
         context "when FIPS-mode is active" do
           before do