Merge pull request #71 from ruby/workaround-for-jruby

Workaround for jruby

Author: nobu

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
   ruby-versions:
     uses: ruby/actions/.github/workflows/ruby_versions.yml@master
     with:
-      engine: cruby
+      engine: cruby-jruby
       min_version: 2.5
 
   build:
@@ -32,3 +32,19 @@ jobs:
         bundler-cache: true
     - name: Run test
       run: bundle exec rake test
+    - name: Build package
+      id: build
+      shell: bash
+      run: |
+        if ruby -e 'exit RUBY_VERSION>="3.0."'; then
+          bundle exec rake build
+          set pkg/*.gem
+          echo pkg=$1 >> $GITHUB_OUTPUT
+        fi
+    - name: Install gem
+      run: |
+        gem install ${{ steps.build.outputs.pkg }}
+        ruby -rresolv -e 'puts $LOADED_FEATURES.grep(/resolv/)'
+        ruby -rresolv -e 'puts Resolv::VERSION'
+      if: ${{ steps.build.outputs.pkg }}
+      continue-on-error: ${{ startsWith(matrix.ruby, 'jruby') }}

Rakefile

@@ -1,13 +1,15 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
-require "ruby-core/extensiontask"
 
-helper = Bundler::GemHelper.instance
-extask = RubyCore::ExtensionTask.new(helper.gemspec)
-task :test => :compile
+if RUBY_ENGINE == "ruby"
+  require "ruby-core/extensiontask"
+  helper = Bundler::GemHelper.instance
+  extask = RubyCore::ExtensionTask.new(helper.gemspec)
+  task :test => :compile
+end
 
 Rake::TestTask.new(:test) do |t|
-  t.libs.unshift(*extask.libs)
+  t.libs.unshift(*extask.libs) if extask
   t.libs << "test/lib"
   t.ruby_opts << "-rhelper"
   t.test_files = FileList["test/**/test_*.rb"]

ext/win32/resolv/extconf.rb

@@ -1,5 +1,5 @@
 require 'mkmf'
-if have_library('iphlpapi', 'GetNetworkParams')
+if RUBY_ENGINE == "ruby" and have_library('iphlpapi', 'GetNetworkParams')
   create_makefile('win32/resolv')
 else
   File.write('Makefile', "all clean install:\n\t@echo Done: $(@)\n")