Add RuboCop.

.github/workflows/rubocop.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 RuboCop
+      timeout-minutes: 10
+      run: bundle exec rubocop

.rubocop.yml

@@ -0,0 +1,46 @@
+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/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

benchmark/test.rb

@@ -7,16 +7,16 @@
 TYPE = ENV.fetch("TYPE", "pos")
 
 describe "sus" do
-  ITERATIONS.times do |n|
-    case TYPE
-    when "pos" then
-      it "pos #{n}" do
-        expect(1).to be == 1
-      end
-    when "neg" then
-      it "neg #{n}" do
-        expect(1).to be == 2
-      end
-    end
-  end
+	ITERATIONS.times do |n|
+		case TYPE
+		when "pos" then
+			it "pos #{n}" do
+				expect(1).to be == 1
+			end
+		when "neg" then
+			it "neg #{n}" do
+				expect(1).to be == 2
+			end
+		end
+	end
 end

bin/sus

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 # require 'stackprof'
 # StackProf.start(mode: :wall, interval: 10)

bin/sus-host

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'json'
 

bin/sus-parallel

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require_relative '../lib/sus/config'
 config = Sus::Config.load

bin/sus-tree

@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'json'
 

gems.rb

@@ -17,6 +17,7 @@
 group :test do
 	gem "covered"
 	gem "decode"
+	gem "rubocop"
 
 	gem "bake-test"
 	gem "bake-test-external"