MONGOID-5171 - Make the minimum Ruby version 2.5 (#5058)

* MONGOID-5171 - Make the minimum Ruby version 2.5. Also get rid of the "ruby_version" module, which seems unused/out-of-date.

* revert doc change

* add 7.4 to compat tables removing Ruby 2.3/2.4 from it

Co-authored-by: shields <[email protected]>
Co-authored-by: Oleg Pudeyev <[email protected]>

Author: johnnyshields

.evergreen/config.yml

@@ -404,14 +404,6 @@ axes:
   - id: "ruby"
     display_name: Ruby Version
     values:
-      - id: "ruby-2.3"
-        display_name: ruby-2.3
-        variables:
-           RVM_RUBY: "ruby-2.3"
-      - id: "ruby-2.4"
-        display_name: ruby-2.4
-        variables:
-           RVM_RUBY: "ruby-2.4"
       - id: "ruby-2.5"
         display_name: ruby-2.5
         variables:
@@ -599,30 +591,6 @@ buildvariants:
   tasks:
     - name: "test"
 
-- matrix_name: "ruby-2.4"
-  matrix_spec:
-    ruby: ["ruby-2.4"]
-    driver: ["current"]
-    topology: ['replica-set', 'sharded-cluster']
-    mongodb-version: ['3.2', '3.4']
-  display_name: "${ruby}, ${driver}, ${rails}, ${mongodb-version}, ${topology}"
-  run_on:
-    - ubuntu1604-small
-  tasks:
-    - name: "test"
-
-- matrix_name: "ruby-2.3"
-  matrix_spec:
-    ruby: ["ruby-2.3"]
-    driver: ["current"]
-    topology: ['replica-set', 'sharded-cluster']
-    mongodb-version: ['2.6', '3.0']
-  display_name: "${ruby}, ${driver}, ${rails}, ${mongodb-version}, ${topology}"
-  run_on:
-    - ubuntu1604-small
-  tasks:
-    - name: "test"
-
 - matrix_name: "driver-upcoming"
   matrix_spec:
     driver: [master, stable]

README.md

@@ -19,7 +19,7 @@ Compatibility
 
 Mongoid supports and is tested against:
 
-- MRI 2.3-3.0
+- MRI 2.5-3.0
 - JRuby 9.2
 - MongoDB server 2.6-4.4
 

docs/reference/compatibility.txt

@@ -34,6 +34,10 @@ specified Mongoid versions.
      - Driver 2.15-2.10
      - Driver 2.9-2.7
 
+   * - 7.4
+     - |checkmark|
+     -
+
    * - 7.3
      - |checkmark|
      -
@@ -77,6 +81,16 @@ is deprecated.
      - Ruby 2.2
      - JRuby 9.2
 
+   * - 7.4
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     -
+     -
+     -
+     - |checkmark|
+
    * - 7.3
      - |checkmark| [#mongoid-7.3-ruby-3.0]_
      - |checkmark|
@@ -165,6 +179,16 @@ for driver compatibility matrices.
      - MongoDB 3.0
      - MongoDB 2.6
 
+   * - 7.4
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+     - |checkmark|
+
    * - 7.3
      - |checkmark|
      - |checkmark|
@@ -237,6 +261,14 @@ are supported by Mongoid.
      - Rails 5.0
      - Rails 4.2
 
+   * - 7.4
+     - |checkmark|
+     - |checkmark|
+     - |checkmark| [#rails-5-ruby-3.0]_
+     - |checkmark| [#rails-5-ruby-3.0]_
+     -
+     -
+
    * - 7.3
      - |checkmark|
      - |checkmark|

docs/release-notes/mongoid-7.4.txt

@@ -18,6 +18,13 @@ please consult GitHub releases for detailed release notes and JIRA for
 the complete list of issues fixed in each release, including bug fixes.
 
 
+Ruby Version Support
+--------------------
+
+As of version 7.4, Mongoid supports Ruby 2.5+.
+Support for Ruby 2.4 and earlier has been dropped.
+
+
 ``===`` Operator Matches Ruby Semantics
 ---------------------------------------
 

lib/mongoid.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "support/ruby_version"
-
 require "forwardable"
 require "time"
 require "set"

lib/support/ruby_version.rb

@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
     warn "[#{s.name}] Warning: No private key present, creating unsigned gem."
   end
 
-  s.required_ruby_version     = ">= 2.3"
+  s.required_ruby_version     = ">= 2.5"
   s.required_rubygems_version = ">= 1.3.6"
 
   if RUBY_VERSION.start_with?('2.')

mongoid.gemspec

@@ -288,7 +288,6 @@
       end
 
       context "when an argument is given" do
-        ruby_version_gte '2.5'
 
         it "returns true when the argument is true" do
           expect(enumerable.any?(Post)).to be true
@@ -300,7 +299,6 @@
       end
 
       context "when both an argument and a block are given" do
-        ruby_version_gte '2.5'
 
         it "gives precedence to the pattern" do
           expect(
@@ -339,7 +337,6 @@
       end
 
       context "when an argument is given" do
-        ruby_version_gte '2.5'
 
         it "returns true when the argument is true" do
           expect(enumerable.any?(Post)).to be true
@@ -351,7 +348,6 @@
       end
 
       context "when both an argument and a block are given" do
-        ruby_version_gte '2.5'
 
         it "gives precedence to the pattern" do
           expect(

spec/mongoid/association/referenced/has_many/enumerable_spec.rb

@@ -330,11 +330,7 @@
         end
 
         let(:frozen_error_cls) do
-          if RUBY_VERSION >= '2.5'
-            FrozenError
-          else
-            RuntimeError
-          end
+          FrozenError
         end
 
         context "when no attribute is provided" do