[ruby/psych] Eagerly require date.

https://github.com/ruby/psych/commit/b2aa0032c0

ext/psych/lib/psych.rb

@@ -1,4 +1,6 @@
 # frozen_string_literal: true
+require 'date'
+
 require_relative 'psych/versions'
 case RUBY_ENGINE
 when 'jruby'

ext/psych/lib/psych/scalar_scanner.rb

@@ -4,8 +4,6 @@ module Psych
   ###
   # Scan scalars for built in types
   class ScalarScanner
-    autoload :Date, "date"
-
     # Taken from http://yaml.org/type/timestamp.html
     TIME = /^-?\d{4}-\d{1,2}-\d{1,2}(?:[Tt]|\s+)\d{1,2}:\d\d:\d\d(?:\.\d*)?(?:\s*(?:Z|[-+]\d{1,2}:?(?:\d\d)?))?$/
 

ext/psych/lib/psych/visitors/to_ruby.rb

@@ -79,7 +79,6 @@ module Psych
           class_loader.big_decimal._load o.value
         when "!ruby/object:DateTime"
           class_loader.date_time
-          require 'date' unless defined? DateTime
           t = @ss.parse_time(o.value)
           DateTime.civil(*t.to_a[0, 6].reverse, Rational(t.utc_offset, 86400)) +
             (t.subsec/86400)

ext/psych/psych.gemspec

@@ -75,6 +75,8 @@ DESCRIPTION
     s.add_dependency 'stringio'
   end
 
+  s.add_dependency 'date'
+
   s.metadata['msys2_mingw_dependencies'] = 'libyaml'
   s.metadata['changelog_uri'] = s.homepage + '/releases'
 end

test/psych/helper.rb

@@ -2,7 +2,6 @@
 require 'test/unit'
 require 'stringio'
 require 'tempfile'
-require 'date'
 
 require 'psych'
 

test/psych/test_date_time.rb

@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 require_relative 'helper'
-require 'date'
 
 module Psych
   class TestDateTime < TestCase

test/psych/test_scalar_scanner.rb

@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 require_relative 'helper'
-require 'date'
 
 module Psych
   class TestScalarScanner < TestCase

test/psych/test_string.rb

@@ -50,6 +50,16 @@ module Psych
       assert_equal str, Psych.load(yaml)
     end
 
+    def test_single_quote_when_matching_date
+      pend "Failing on JRuby" if RUBY_PLATFORM =~ /java/
+
+      lib = File.expand_path("../../../lib", __FILE__)
+      assert_separately(["-I", lib, "-r", "psych"], __FILE__, __LINE__ + 1, <<~'RUBY')
+        yml = Psych.dump('2024-11-19')
+        assert_equal '2024-11-19', Psych.load(yml)
+      RUBY
+    end
+
     def test_plain_when_shorten_than_line_width_and_no_final_line_break
       str = "Lorem ipsum"
       yaml = Psych.dump str, line_width: 12