Modernize gem.

.editorconfig

@@ -3,3 +3,7 @@ root = true
 [*]
 indent_style = tab
 indent_size = 2
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2

.github/workflows/documentation-coverage.yaml

@@ -0,0 +1,25 @@
+name: Documentation Coverage
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+env:
+  CONSOLE_OUTPUT: XTerm
+  COVERAGE: PartialSummary
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "3.3"
+        bundler-cache: true
+
+    - name: Validate coverage
+      timeout-minutes: 5
+      run: bundle exec bake decode:index:coverage lib

.github/workflows/documentation.yaml

@@ -0,0 +1,58 @@
+name: Documentation
+
+on:
+  push:
+    branches:
+      - main
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages:
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow one concurrent deployment:
+concurrency:
+  group: "pages"
+  cancel-in-progress: true
+
+env:
+  CONSOLE_OUTPUT: XTerm
+  BUNDLE_WITH: maintenance
+
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "3.3"
+        bundler-cache: true
+
+    - name: Installing packages
+      run: sudo apt-get install wget
+
+    - name: Generate documentation
+      timeout-minutes: 5
+      run: bundle exec bake utopia:project:static --force no
+
+    - name: Upload documentation artifact
+      uses: actions/upload-pages-artifact@v3
+      with:
+        path: docs
+
+  deploy:
+    runs-on: ubuntu-latest
+
+    environment:
+      name: github-pages
+      url: ${{steps.deployment.outputs.page_url}}
+
+    needs: generate
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

.github/workflows/rubocop.yaml

@@ -0,0 +1,24 @@
+name: RuboCop
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+env:
+  CONSOLE_OUTPUT: XTerm
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ruby
+        bundler-cache: true
+
+    - name: Run RuboCop
+      timeout-minutes: 10
+      run: bundle exec rubocop

.github/workflows/test-coverage.yaml

@@ -0,0 +1,59 @@
+name: Test Coverage
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+env:
+  CONSOLE_OUTPUT: XTerm
+  COVERAGE: PartialSummary
+
+jobs:
+  test:
+    name: ${{matrix.ruby}} on ${{matrix.os}}
+    runs-on: ${{matrix.os}}-latest
+
+    strategy:
+      matrix:
+        os:
+          - ubuntu
+          - macos
+
+        ruby:
+          - "3.3"
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{matrix.ruby}}
+        bundler-cache: true
+
+    - name: Run tests
+      timeout-minutes: 5
+      run: bundle exec bake test
+
+    - uses: actions/upload-artifact@v4
+      with:
+        include-hidden-files: true
+        if-no-files-found: error
+        name: coverage-${{matrix.os}}-${{matrix.ruby}}
+        path: .covered.db
+
+  validate:
+    needs: test
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: "3.3"
+        bundler-cache: true
+
+    - uses: actions/download-artifact@v4
+
+    - name: Validate coverage
+      timeout-minutes: 5
+      run: bundle exec bake covered:validate --paths */.covered.db \;

.github/workflows/test-external.yaml

@@ -0,0 +1,36 @@
+name: Test External
+
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+env:
+  CONSOLE_OUTPUT: XTerm
+
+jobs:
+  test:
+    name: ${{matrix.ruby}} on ${{matrix.os}}
+    runs-on: ${{matrix.os}}-latest
+
+    strategy:
+      matrix:
+        os:
+          - ubuntu
+          - macos
+
+        ruby:
+          - "3.1"
+          - "3.2"
+          - "3.3"
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{matrix.ruby}}
+        bundler-cache: true
+
+    - name: Run tests
+      timeout-minutes: 10
+      run: bundle exec bake test:external

.github/workflows/development.yml → .github/workflows/test.yaml

@@ -1,9 +1,16 @@
-name: Development
+name: Test
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
+env:
+  CONSOLE_OUTPUT: XTerm
+
 jobs:
   test:
+    name: ${{matrix.ruby}} on ${{matrix.os}}
     runs-on: ${{matrix.os}}-latest
     continue-on-error: ${{matrix.experimental}}
 
@@ -14,13 +21,11 @@ jobs:
           - macos
 
         ruby:
-          - 2.5
-          - 2.6
-          - 2.7
-          - 3.0
+          - "3.1"
+          - "3.2"
+          - "3.3"
 
         experimental: [false]
-        env: [""]
 
         include:
           - os: ubuntu
@@ -34,12 +39,12 @@ jobs:
             experimental: true
 
     steps:
-    - uses: actions/checkout@v2
-    - uses: ruby/setup-ruby@master
+    - uses: actions/checkout@v4
+    - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}
         bundler-cache: true
 
     - name: Run tests
-      timeout-minutes: 5
-      run: ${{matrix.env}} bundle exec rspec
+      timeout-minutes: 10
+      run: bundle exec bake test

.gitignore

@@ -1,12 +1,5 @@
 /.bundle/
-/.yardoc
-/gems.locked
-/_yardoc/
-/coverage/
-/doc/
 /pkg/
-/spec/reports/
-/tmp/
-
-# rspec failure tracking
-.rspec_status
+/gems.locked
+/.covered.db
+/external

.rubocop.yml

@@ -0,0 +1,53 @@
+AllCops:
+  DisabledByDefault: true
+
+Layout/IndentationStyle:
+  Enabled: true
+  EnforcedStyle: tabs
+
+Layout/InitialIndentation:
+  Enabled: true
+
+Layout/IndentationWidth:
+  Enabled: true
+  Width: 1
+
+Layout/IndentationConsistency:
+  Enabled: true
+  EnforcedStyle: normal
+
+Layout/BlockAlignment:
+  Enabled: true
+
+Layout/EndAlignment:
+  Enabled: true
+  EnforcedStyleAlignWith: start_of_line
+
+Layout/BeginEndAlignment:
+  Enabled: true
+  EnforcedStyleAlignWith: start_of_line
+
+Layout/ElseAlignment:
+  Enabled: true
+
+Layout/DefEndAlignment:
+  Enabled: true
+
+Layout/CaseIndentation:
+  Enabled: true
+
+Layout/CommentIndentation:
+  Enabled: true
+
+Layout/EmptyLinesAroundClassBody:
+  Enabled: true
+
+Layout/EmptyLinesAroundModuleBody:
+  Enabled: true
+
+Style/FrozenStringLiteralComment:
+  Enabled: true
+
+Style/StringLiterals:
+  Enabled: true
+  EnforcedStyle: double_quotes