Add Ruby 4 to CI; drop Ruby 3.1

.github/workflows/ci.yml

@@ -20,11 +20,23 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "3.4", "head"]
+        ruby: ["3.2", "3.3", "3.4", "4.0", "head"]
     steps:
       - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
       - run: bundle exec rake test
+  test-all:
+    name: "Test / All"
+    runs-on: ubuntu-latest
+    needs: test
+    if: always()
+    steps:
+      - name: All tests ok
+        if: ${{ !(contains(needs.*.result, 'failure')) }}
+        run: exit 0
+      - name: Some tests failed
+        if: ${{ contains(needs.*.result, 'failure') }}
+        run: exit 1

.rubocop.yml

@@ -8,7 +8,7 @@ AllCops:
   DisplayCopNames: true
   DisplayStyleGuide: true
   NewCops: enable
-  TargetRubyVersion: 3.1
+  TargetRubyVersion: 3.2
   Exclude:
     - "tmp/**/*"
     - "vendor/**/*"

example.gemspec

@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.summary = ""
   spec.homepage = "https://github.com/mattbrictson/gem"
   spec.license = "MIT"
-  spec.required_ruby_version = ">= 3.1"
+  spec.required_ruby_version = ">= 3.2"
 
   spec.metadata = {
     "bug_tracker_uri" => "https://github.com/mattbrictson/gem/issues",

rename_template.rb

@@ -143,8 +143,8 @@ def assert_git_repo!
   exit(1)
 end
 
-def git(*args)
-  sh! "git", *args
+def git(*)
+  sh!("git", *)
 end
 
 def ensure_executable(path)