Build fat gems for all supported Ruby versions and platforms on CI (#360)

* Build fat gems for all supported Ruby versions and platforms on CI

* Specify gemspec to RbSys::ExtensionTask to define `native:*` tasks

which are used by `rb-sys-dock`

* Specify rb_sys dependency in gemspec

* bundle exec to load gems specified in gemspec

* Sync rb-sys version with the one in gemspec

* Revert "Specify rb_sys dependency in gemspec"

This reverts commit f7f8d24.

* Pin rb_sys version exactly to use the same version with Cargo.toml

* Don't need to setup rust in host machine

* Exclude arm-linux from supported ruby platforms

* Check gem build for all platforms

* Don't install gems in host machine

* Hardcode rb-sys version to remove the need of bundle install

* Sync workflow with wasmtime-rb

Author: kateinoigakukun

.github/workflows/build-gems.yml

@@ -0,0 +1,52 @@
+name: Build gems
+on:
+  push:
+    branches: [main]
+    tags: ["*"]
+    paths-ignore:
+      - "*.md"
+      - "docs/**"
+  pull_request:
+
+jobs:
+  ci-data:
+    runs-on: ubuntu-latest
+    outputs:
+      result: ${{ steps.fetch.outputs.result }}
+    steps:
+      - uses: oxidize-rb/actions/fetch-ci-data@v1
+        id: fetch
+        with:
+          supported-ruby-platforms: |
+            exclude: [arm-linux]
+          stable-ruby-versions: |
+            exclude: [head]
+
+  cross-gem:
+    name: Compile native gem for ${{ matrix.ruby-platform }}
+    runs-on: ubuntu-latest
+    needs: ci-data
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-platform: ${{ fromJSON(needs.ci-data.outputs.result).supported-ruby-platforms }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: oxidize-rb/actions/setup-ruby-and-rust@v1
+        with:
+          ruby-version: "3.2"
+          bundler-cache: true
+          cargo-cache: true
+          cargo-vendor: true
+          cache-version: v2-${{ matrix.ruby-platform }}
+
+      - name: Set vars
+        id: vars
+        run: |
+          echo "rb-sys-version=$(bundle exec ruby -rrb_sys -e 'puts RbSys::VERSION')" >> $GITHUB_OUTPUT
+      - uses: oxidize-rb/cross-gem-action@main
+        with:
+          version: ${{ steps.vars.outputs.rb-sys-version }}
+          platform: ${{ matrix.ruby-platform }}
+          ruby-versions: ${{ join(fromJSON(needs.ci-data.outputs.result).stable-ruby-versions, ', ') }}

.github/workflows/build.yml

@@ -34,10 +34,10 @@ jobs:
           ruby-version: "3.2"
           bundler-cache: true
       - run: ./bin/setup
-      - run: rake check:type
+      - run: bundle exec rake check:type
       - run: sudo apt-get install clang-format
       - run: ./tools/clang-format-diff.sh
-      - run: rake check:bindgen
+      - run: bundle exec rake check:bindgen
       - run: git diff --exit-code
 
   build-builder-image:

Gemfile

@@ -7,7 +7,7 @@ gemspec
 group :development do
   gem "rake"
   gem "rake-compiler"
-  gem "rb_sys", "~> 0.9.63"
+  gem "rb_sys", "0.9.85"
 end
 
 group :check do

tasks/gem.rake

@@ -10,7 +10,10 @@ end
 begin
   require "rb_sys/extensiontask"
 
-  RbSys::ExtensionTask.new("ruby_wasm") { |ext| ext.lib_dir = "lib/ruby_wasm" }
+  gemspec = Gem::Specification.load("ruby_wasm.gemspec")
+  RbSys::ExtensionTask.new("ruby_wasm", gemspec) do |ext|
+    ext.lib_dir = "lib/ruby_wasm"
+  end
 rescue LoadError => e
   task :compile do
     $stderr.puts "Skipping compilation of ruby_wasm extension: #{e.message}"