Fix compatibility with Ruby 3.1

Gemfile

@@ -7,7 +7,6 @@ gem "rake", :require => false
 gemspec
 
 group :test do
-  gem "safe_yaml", :require => false
   gem "luna-rspec-formatters", :require => false
   gem "simplecov", :require => false
 end

README.md

@@ -26,7 +26,7 @@ but only if they originate from the given root.
 - `>=`, `>` - Check if a file is in but ahead of a path: `Pathutil.new("/tmp/hello") > "/tmp" # => true`
 - `in_path?` - Check if a file is within a given path: `Pathutil.new("/tmp/hello").in_path?("/tmp") # => true`
 - `<=`, `<` - Check if a file is in but below a path: `Pathutil.new("/tmp") < "/tmp/hello" # => true`
-- `read_yaml` - a wrapper around `Yaml.safe_load` and `SafeYAML` to make reading `YAML` easy.
+- `read_yaml` - a wrapper around `Yaml.safe_load` to make reading `YAML` easy.
 - `children` - behaves like Pathname, except it accepts a block to work on the path.
 - `safe_copy` - Copy files, disallowing symlinks unless `in_path?`
 - `enforce_root` - Force a root if not already in that root.

lib/pathutil/helpers.rb

@@ -20,7 +20,7 @@ def allowed
     end
 
     # --
-    # Wraps around YAML and SafeYAML to provide alternatives to Rubies.
+    # Wraps around YAMLto provide alternatives to Rubies.
     # @note We default aliases to yes so we can detect if you explicit true.
     # @return Hash
     # --
@@ -34,20 +34,12 @@ def load_yaml(data, safe: true, whitelist_classes: allowed[:yaml][:classes], \
         )
       end
 
-      if !YAML.respond_to?(:safe_load)
-        setup_safe_yaml whitelist_classes, aliases
-        SafeYAML.load(
-          data
-        )
-
-      else
-        YAML.safe_load(
-          data,
-          whitelist_classes,
-          whitelist_symbols,
-          aliases
-        )
-      end
+      YAML.safe_load(
+        data,
+        permitted_classes: whitelist_classes,
+        permitted_symbols: whitelist_symbols,
+        aliases: aliases
+      )
     end
 
     # --
@@ -109,21 +101,5 @@ def tmpname_prefix(prefix)
         prefix, ext || ""
       ]
     end
-
-    # --
-    # Wrap around, cleanup, deprecate and use SafeYAML.
-    # rubocop:enable Style/ParallelAssignment
-    # --
-    private
-    def setup_safe_yaml(whitelist_classes, aliases)
-      warn "WARN: SafeYAML does not support disabling  of aliases." if aliases && aliases != :yes
-      warn "WARN: SafeYAML will be removed when Ruby 2.0 goes EOL."
-      require "safe_yaml/load"
-
-      SafeYAML.restore_defaults!
-      whitelist_classes.map(&SafeYAML.method(
-        :whitelist_class!
-      ))
-    end
   end
 end

spec/tests/lib/pathutil/helpers_spec.rb

@@ -35,61 +35,6 @@
           Psych::DisallowedClass
         )
       end
-
-      #
-
-      context "when using SafeYAML" do
-        before do
-          allow(YAML).to receive(:respond_to?).with(:safe_load).and_return(false)
-          expect_any_instance_of(described_class).to receive(:warn).and_return(
-            nil
-          )
-        end
-
-        #
-
-        context do
-          it "should warn it's deprecated" do
-            expect(described_class).to receive(:warn).and_return(
-              nil
-            )
-          end
-
-          #
-
-          after do
-            described_class.load_yaml(
-              ":hello: :world"
-            )
-          end
-        end
-
-        #
-
-        context "when trying to disable aliases" do
-          it "should warn that you cannot disable them in SafeYAML" do
-            expect(described_class).to receive(:warn).exactly(2).times.and_return(
-              nil
-            )
-          end
-
-          #
-
-          after do
-            described_class.load_yaml("hello: world", {
-              :aliases => true
-            })
-          end
-        end
-
-        #
-
-        it "should parse with SafeYAML" do
-          expect(described_class.load_yaml(":hello: :world")).to eq({
-            ":hello" => ":world"
-          })
-        end
-      end
     end
 
     #