Adds ruby 3.0 support.

.github/workflows/ruby.yml

@@ -0,0 +1,32 @@
+name: Ruby
+
+on:
+  push:
+    branches:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  rspec:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby-version: ['2.6', '2.7', '3.0']
+        grape-version: [1.5.2, 1.4.0, 1.3.3]
+        model-parser: [grape-swagger-entity, grape-swagger-representable]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@473e4d8fe5dd94ee328fdfca9f8c9c7afc9dae5e
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        GRAPE_VERSION: ${{ matrix.grape-version }}
+        MODEL_PARSER: ${{ matrix.model-parser }}
+        bundler-cache: true
+    - name: Run rspec
+      run: bundle exec rspec
+    - name: Run rubocop
+      run: bundle exec rubocop

.rubocop.yml

@@ -5,7 +5,8 @@ AllCops:
     - vendor/**/*
     - example/**/*
   NewCops: enable
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 3.0
+  SuggestExtensions: false
 
 #  Layout stuff
 #

grape-swagger.gemspec

@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.summary     = 'Add auto generated documentation to your Grape API that can be displayed with Swagger.'
   s.license     = 'MIT'
 
-  s.required_ruby_version = '>= 2.4'
+  s.required_ruby_version = '>= 2.5'
   s.add_runtime_dependency 'grape', '~> 1.3'
 
   s.files         = `git ls-files`.split("\n")

lib/grape-swagger/endpoint.rb

@@ -329,7 +329,7 @@ def build_root(route, reference, response_model, settings)
     end
 
     def file_response?(value)
-      value.to_s.casecmp('file').zero? ? true : false
+      value.to_s.casecmp('file').zero?
     end
 
     def build_file_response(memo)

lib/grape-swagger/model_parsers.rb

@@ -16,14 +16,14 @@ def insert_before(before_klass, klass, ancestor)
       subhash = @parsers.except(klass).to_a
       insert_at = subhash.index(subhash.assoc(before_klass))
       insert_at = subhash.length - 1 if insert_at.nil?
-      @parsers = Hash[subhash.insert(insert_at, [klass, ancestor])]
+      @parsers = subhash.insert(insert_at, [klass, ancestor]).to_h
     end
 
     def insert_after(after_klass, klass, ancestor)
       subhash = @parsers.except(klass).to_a
       insert_at = subhash.index(subhash.assoc(after_klass))
       insert_at = subhash.length - 1 if insert_at.nil?
-      @parsers = Hash[subhash.insert(insert_at + 1, [klass, ancestor])]
+      @parsers = subhash.insert(insert_at + 1, [klass, ancestor]).to_h
     end
 
     def each

spec/spec_helper.rb

@@ -19,7 +19,7 @@
 require 'grape'
 require 'grape-swagger'
 
-Dir[File.join(Dir.getwd, 'spec/support/*.rb')].sort.each { |f| require f }
+Dir[File.join(Dir.getwd, 'spec/support/*.rb')].each { |f| require f }
 require "grape-swagger/#{MODEL_PARSER}" if MODEL_PARSER != 'mock'
 require File.join(Dir.getwd, "spec/support/model_parsers/#{MODEL_PARSER}_parser.rb")
 

spec/swagger_v2/api_swagger_v2_response_with_headers_spec.rb

@@ -19,15 +19,17 @@ class ResponseApiHeaders < Grape::API
         end
 
         desc 'A 204 can have headers too' do
-          success Hash[status: 204, message: 'No content', headers: { 'Location' => { description: 'Location of resource', type: 'string' } }]
+          foo = { status: 204, message: 'No content', headers: { 'Location' => { description: 'Location of resource', type: 'string' } } }
+          success foo
           failure [[400, 'Bad Request', Entities::ApiError, { 'application/json' => { code: 400, message: 'Bad request' } }, { 'Date' => { description: 'Date of failure', type: 'string' } }]]
         end
         delete '/no_content_response_headers' do
           { 'declared_params' => declared(params) }
         end
 
         desc 'A file can have headers too' do
-          success Hash[status: 200, model: 'File', headers: { 'Cache-Control' => { description: 'Directive for caching', type: 'string' } }]
+          foo = { status: 200, model: 'File', headers: { 'Cache-Control': { description: 'Directive for caching', type: 'string' } } }
+          success foo
           failure [[404, 'NotFound', Entities::ApiError, { 'application/json' => { code: 404, message: 'Not found' } }, { 'Date' => { description: 'Date of failure', type: 'string' } }]]
         end
         get '/file_response_headers' do