Migrate to gh actions

.github/workflows/tests.yml

@@ -0,0 +1,31 @@
+name: tests
+
+on:
+  push:
+
+jobs:
+  rubocop:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+      - name: Run rubocop
+        run: bundle exec rubocop --parallel --extra-details --display-style-guide
+
+  tests:
+    strategy:
+      matrix:
+        ruby-version: [2.6, 2.7, 3.0, 3.1]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: "${{ matrix.ruby-version }}"
+      - name: Run tests
+        run: bundle exec rspec --format RSpec::Github::Formatter

.rubocop.yml

@@ -1,28 +1,32 @@
+inherit_gem:
+  gc_ruboconfig: rubocop.yml
+
+require:
+  - rubocop-rspec
+
 AllCops:
   Exclude:
-    - prius.gemspec
     - vendor/**/*
-  TargetRubyVersion: 2.6
-
-# Limit lines to 80 characters.
-LineLength:
-  Max: 80
-
-ClassLength:
-  Max: 300
-
-StringLiterals:
-  Enabled: false
+  TargetRubyVersion: 3.1
 
 Style/Documentation:
   Enabled: false
 
 Style/SignalException:
-  EnforcedStyle: 'only_raise'
+  EnforcedStyle: "only_raise"
 
 Layout/DotPosition:
-  EnforcedStyle: 'trailing'
+  EnforcedStyle: "trailing"
 
 Metrics/BlockLength:
   Exclude:
     - "spec/**/*_spec.rb"
+
+RSpec/NestedGroups:
+  Max: 5
+
+Gemspec/RequiredRubyVersion:
+  Enabled: false
+
+RSpec/MultipleExpectations:
+  Max: 5

.ruby-version

@@ -0,0 +1 @@
+3.1.2

lib/prius/registry.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "date"
 require "prius/errors"
 
 module Prius
@@ -46,7 +47,7 @@ def load_int(name, required)
       value = load_string(name, required)
       return value if value.nil?
 
-      unless value =~ /\A[0-9]+\z/
+      unless /\A[0-9]+\z/.match?(value)
         raise TypeMismatchError, "'#{name}' value '#{value}' is not an integer"
       end
 

prius.gemspec

@@ -1,27 +1,30 @@
 # coding: utf-8
-lib = File.expand_path('../lib', __FILE__)
+# frozen_string_literal: true
+
+require "English"
+
+lib = File.expand_path("lib", __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'prius/version'
+require "prius/version"
 
 Gem::Specification.new do |spec|
   spec.name          = "prius"
   spec.version       = Prius::VERSION
   spec.authors       = ["GoCardless Engineering"]
   spec.email         = ["engineering@gocardless.com"]
-  spec.description   = %q{Environmentally-friendly config}
+  spec.description   = "Environmentally-friendly config"
   spec.summary       = spec.description
   spec.homepage      = "https://github.com/gocardless/prius"
   spec.license       = "MIT"
 
-  spec.files         = `git ls-files`.split($/)
+  spec.files         = `git ls-files`.split($INPUT_RECORD_SEPARATOR)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
-  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
   spec.required_ruby_version = ">= 2.6"
 
+  spec.add_development_dependency "gc_ruboconfig", "~> 3.6.0"
   spec.add_development_dependency "rspec", "~> 3.1"
-  spec.add_development_dependency "rubocop", "~> 1.24"
-  spec.add_development_dependency "rspec_junit_formatter", "~> 0.5.1"
-  spec.add_development_dependency "rubocop-performance", "~> 1.13"
+  spec.add_development_dependency "rspec-github", "~> 2.3.1"
+  spec.metadata["rubygems_mfa_required"] = "true"
 end

spec/prius/registry_spec.rb

@@ -9,10 +9,10 @@
       "AGE" => "25",
       "ALIVE" => "yes",
       "BORN" => "2022-09-02",
-      "INVALID_DATE" => "2022-02-99"
+      "INVALID_DATE" => "2022-02-99",
     }
   end
-  let(:registry) { Prius::Registry.new(env) }
+  let(:registry) { described_class.new(env) }
 
   describe "#load" do
     context "given an invalid option" do
@@ -120,6 +120,7 @@
   describe "#get" do
     context "given a name that has been loaded" do
       before { registry.load(:name) }
+
       it "returns the value" do
         expect(registry.get(:name)).to eq("Harry")
       end
@@ -134,6 +135,7 @@
 
     context "given a nillable name that has been loaded" do
       before { registry.load(:lightsabre, required: false) }
+
       it "returns nil" do
         expect(registry.get(:lightsabre)).to be_nil
       end