CI: Build gem for each PR

  Validates that the gemspec is correct and the gem can be build.

Author: bastelfreak

.github/workflows/tests.yaml

@@ -63,7 +63,12 @@ jobs:
           bundler-cache: true
       - name: Output Ruby Environment
         run: bundle env
-
+      - name: Build gem for all platforms
+        run: bundle exec rake pl_ci:gem_build
+      # Windows tests fail if the gem is in the filesystem
+      - name: Cleanup builds
+        if: runner.os == 'Windows'
+        run: Remove-Item -Path *.gem
       - name: Run tests on Windows
         if: runner.os == 'Windows'
         run: |

Rakefile

@@ -61,10 +61,10 @@ namespace :pl_ci do
   task :gem_build, [:gemspec] do |t, args|
     args.with_defaults(gemspec: 'openvox.gemspec')
     stdout, stderr, status = Open3.capture3(<<~END)
-      gem build #{args.gemspec} --platform x86-mingw32 && \
-      gem build #{args.gemspec} --platform x64-mingw32 && \
-      gem build #{args.gemspec} --platform universal-darwin && \
-      gem build #{args.gemspec}
+      gem build #{args.gemspec} --verbose --strict --platform x86-mingw32 && \
+      gem build #{args.gemspec} --verbose --strict --platform x64-mingw32 && \
+      gem build #{args.gemspec} --verbose --strict --platform universal-darwin && \
+      gem build #{args.gemspec} --verbose --strict
     END
     if !status.exitstatus.zero?
       puts "Error building #{args.gemspec}\n#{stdout} \n#{stderr}"