Prep for Ruby 3.1

.github/workflows/backports.yml

@@ -13,8 +13,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu ]
-        ruby: [ 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, head ]
+        os: [ubuntu]
+        ruby: [2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 3.0, head]
     steps:
       - name: checkout
         uses: actions/checkout@v2
@@ -27,7 +27,7 @@ jobs:
       - name: install specs
         run: git submodule update --init --recursive
       - name: spec
-        run:  bundle exec rake test all_spec
+        run: bundle exec rake test all_spec
   internal_investigation:
     name: >-
       Coding Style
@@ -37,8 +37,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu ]
-        ruby: [ 2.7 ]
+        os: [ubuntu]
+        ruby: [2.7]
     steps:
       - name: checkout
         uses: actions/checkout@v2

README.md

@@ -1,6 +1,6 @@
 # Backports Library [<img src="https://travis-ci.org/marcandre/backports.svg?branch=master">](https://travis-ci.org/marcandre/backports) [<img src="https://badge.fury.io/rb/backports.svg" alt="Gem Version" />](http://badge.fury.io/rb/backports) [![Tidelift](https://tidelift.com/badges/package/rubygems/backports)](https://tidelift.com/subscription/pkg/rubygems-backports?utm_source=rubygems-backports&utm_medium=referral&utm_campaign=readme)
 
-Yearning to write a gem using some new cool features in Ruby 3.0 while
+Yearning to write a gem using some new cool features in Ruby 3.1 while
 still supporting Ruby 2.5.x?
 Have some legacy code in Ruby 1.8 but can't live without `flat_map`?
 
@@ -38,12 +38,12 @@ This will make sure that Hash responds to `dig`, `fetch_values`, `to_proc` and c
 ### Up to a specific Ruby version (for quick coding)
 
 You can load all backports up to a specific version.
-For example, to bring any version of Ruby mostly up to Ruby 3.0.0's standards:
+For example, to bring any version of Ruby mostly up to Ruby 3.1.0's standards:
 
-    require 'backports/3.0.0'
+    require 'backports/3.1.0'
 
 This will bring in all the features of 1.8.7 and many features of Ruby 1.9.x
-all the way up to Ruby 3.0.0 (for all versions of Ruby)!
+all the way up to Ruby 3.1.0 (for all versions of Ruby)!
 
 You may `require 'backports/latest'` as a
 shortcut to the latest Ruby version supported.

lib/backports/3.1.0.rb

@@ -0,0 +1,3 @@
+# require this file to load all the backports up to Ruby 3.0
+require 'backports/3.0.0'
+Backports.require_relative_dir if RUBY_VERSION < '3.1'

lib/backports/3.1.rb

@@ -0,0 +1 @@
+require 'backports/3.1.0'

lib/backports/latest.rb

@@ -1,4 +1,4 @@
 # require this file to load all the backports
 # NOTE: This is NOT recommended.
 # Best to require the specific backports you need
-require 'backports/2.7.0'
+require 'backports/3.1.0'

set_version/3.1.0.rb

@@ -0,0 +1 @@
+require File.expand_path("#{File.dirname(__FILE__)}/setter")