1 files changed, 16 insertions, 24 deletions

diff --git a/lib/bundler/fetcher/compact_index.rb b/lib/bundler/fetcher/compact_index.rb
index b23176588f..b92482d888 100644
--- a/lib/bundler/fetcher/compact_index.rb
+++ b/lib/bundler/fetcher/compact_index.rb
@@ -4,25 +4,21 @@ require_relative "base"
 require_relative "../worker"
 
 module Bundler
-  autoload :CompactIndexClient, File.expand_path("../compact_index_client", __dir__)
-
   class Fetcher
     class CompactIndex < Base
       def self.compact_index_request(method_name)
         method = instance_method(method_name)
         undef_method(method_name)
         define_method(method_name) do |*args, &blk|
-          begin
-            method.bind(self).call(*args, &blk)
-          rescue NetworkDownError, CompactIndexClient::Updater::MisMatchedChecksumError => e
-            raise HTTPError, e.message
-          rescue AuthenticationRequiredError
-            # Fail since we got a 401 from the server.
-            raise
-          rescue HTTPError => e
-            Bundler.ui.trace(e)
-            nil
-          end
+          method.bind(self).call(*args, &blk)
+        rescue NetworkDownError, CompactIndexClient::Updater::MismatchedChecksumError => e
+          raise HTTPError, e.message
+        rescue AuthenticationRequiredError, BadAuthenticationError
+          # Fail since we got a 401 from the server.
+          raise
+        rescue HTTPError => e
+          Bundler.ui.trace(e)
+          nil
         end
       end
 
@@ -37,21 +33,21 @@ module Bundler
         remaining_gems = gem_names.dup
 
         until remaining_gems.empty?
-          log_specs "Looking up gems #{remaining_gems.inspect}"
+          log_specs { "Looking up gems #{remaining_gems.inspect}" }
 
           deps = begin
                    parallel_compact_index_client.dependencies(remaining_gems)
                  rescue TooManyRequestsError
-                   @bundle_worker.stop if @bundle_worker
+                   @bundle_worker&.stop
                    @bundle_worker = nil # reset it.  Not sure if necessary
                    serial_compact_index_client.dependencies(remaining_gems)
                  end
-          next_gems = deps.map {|d| d[3].map(&:first).flatten(1) }.flatten(1).uniq
+          next_gems = deps.flat_map {|d| d[3].flat_map(&:first) }.uniq
           deps.each {|dep| gem_info << dep }
           complete_gems.concat(deps.map(&:first)).uniq!
           remaining_gems = next_gems - complete_gems
         end
-        @bundle_worker.stop if @bundle_worker
+        @bundle_worker&.stop
         @bundle_worker = nil # reset it.  Not sure if necessary
 
         gem_info
@@ -62,13 +58,9 @@ module Bundler
           Bundler.ui.debug("FIPS mode is enabled, bundler can't use the CompactIndex API")
           return nil
         end
-        if fetch_uri.scheme == "file"
-          Bundler.ui.debug("Using a local server, bundler won't use the CompactIndex API")
-          return false
-        end
         # Read info file checksums out of /versions, so we can know if gems are up to date
-        compact_index_client.update_and_parse_checksums!
-      rescue CompactIndexClient::Updater::MisMatchedChecksumError => e
+        compact_index_client.available?
+      rescue CompactIndexClient::Updater::MismatchedChecksumError => e
         Bundler.ui.debug(e.message)
         nil
       end
@@ -127,7 +119,7 @@ module Bundler
         rescue NetworkDownError => e
           raise unless Bundler.feature_flag.allow_offline_install? && headers["If-None-Match"]
           ui.warn "Using the cached data for the new index because of a network error: #{e}"
-          Net::HTTPNotModified.new(nil, nil, nil)
+          Gem::Net::HTTPNotModified.new(nil, nil, nil)
         end
       end
     end