Fix platform-specific gem builds and add trusted publishing

The RUBY_ENGINE conditional in the gemspec was only evaluated at build
time, so the published gem always depended on llhttp regardless of the
installer's Ruby engine. Fix by building platform-specific variants
(ruby and java) via a matrix strategy that runs on both CRuby and JRuby.

Author: sferik

.github/workflows/push.yml

@@ -0,0 +1,44 @@
+name: Push gem to RubyGems
+
+on:
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+
+jobs:
+  push:
+    if: github.repository == 'httprb/http'
+    runs-on: ubuntu-latest
+
+    environment:
+      name: rubygems.org
+      url: https://rubygems.org/gems/http
+
+    permissions:
+      contents: write
+      id-token: write
+
+    strategy:
+      matrix:
+        ruby: [ ruby, jruby ]
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - uses: rubygems/release-gem@v1
+
+      - name: Create GitHub release
+        run: |
+          tag_name="$(git describe --tags --abbrev=0)"
+          gh release create "${tag_name}" --verify-tag --generate-notes
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        if: matrix.ruby == 'ruby'

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: [ ruby-3.2, ruby-3.3, ruby-3.4, ruby-4.0 ]
+        ruby: [ ruby-3.2, ruby-3.3, ruby-3.4, ruby-4.0, jruby-9.4, jruby-10.0, truffleruby ]
 
     steps:
       - uses: actions/checkout@v6

README.md

@@ -193,6 +193,9 @@ the following Ruby  versions:
 - Ruby 3.3
 - Ruby 3.4
 - Ruby 4.0
+- JRuby 9.4
+- JRuby 10.0
+- TruffleRuby
 
 If something doesn't work on one of these versions, it's a bug.
 

http.gemspec

@@ -40,10 +40,10 @@ Gem::Specification.new do |spec|
   spec.add_dependency "http-cookie",    "~> 1.0"
   spec.add_dependency "http-form_data", "~> 2.2"
 
-  # Use native llhttp for MRI (more performant) and llhttp-ffi for other interpreters (better compatibility)
-  if RUBY_ENGINE == "ruby"
-    spec.add_dependency "llhttp", "~> 0.6.1"
-  else
+  if RUBY_ENGINE == "jruby"
+    spec.platform = "java"
     spec.add_dependency "llhttp-ffi", "~> 0.5.1"
+  else
+    spec.add_dependency "llhttp", "~> 0.6.1"
   end
 end