Add ChefRuby/RequireNetHttps

Catch anywhere we're still doing this.

Signed-off-by: Tim Smith <tsmith@chef.io>

config/chefstyle.yml

@@ -650,4 +650,9 @@ ChefRuby/GemspecRequireRubygems:
   Enabled: true
   VersionAdded: '1.3.0'
   Include:
-    - '**/*.gemspec'
+    - '**/*.gemspec'
+
+ChefRuby/RequireNetHttps:
+  Description: net/http is deprecated and just includes net/http and openssl. We should include those directly instead
+  Enabled: true
+  VersionAdded: '1.3.0'

lib/rubocop/cop/chef/ruby/require_net_https.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+#
+# Copyright:: Chef Software, Inc.
+# Author:: Tim Smith (<tsmith@chef.io>)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+module RuboCop
+  module Cop
+    module Chef
+      module ChefRuby
+        # net/http is deprecated and just includes net/http and openssl. We should include those directly instead.
+        #
+        # @example
+        #
+        #   # bad
+        #   require 'net/https'
+        #
+        #   # good
+        #   require 'net/http'
+        #   require 'openssl'
+        #
+        class RequireNetHttps < Base
+          extend RuboCop::Cop::AutoCorrector
+
+          MSG = "net/http is deprecated and just includes net/http and openssl. We should include those directly instead."
+
+          def_node_matcher :require_net_https?, <<-PATTERN
+            (send nil? :require (str "net/https"))
+          PATTERN
+
+          def on_send(node)
+            require_net_https?(node) do
+              add_offense(node.loc.expression, message: MSG, severity: :refactor) do |corrector|
+                corrector.replace(node, %Q{require "net/http"\nrequire "openssl"})
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end

spec/rubocop/cop/chef/ruby/require_net_https_spec.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+#
+# Copyright:: Chef Software, Inc.
+# Author:: Tim Smith (<tsmith@chef.io>)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require "spec_helper"
+
+describe RuboCop::Cop::Chef::ChefRuby::RequireNetHttps, :config do
+  subject(:cop) { described_class.new(config) }
+
+  it "registers an offense when when requiring net/https" do
+    expect_offense(<<~RUBY)
+    require 'net/https'
+    ^^^^^^^^^^^^^^^^^^^ net/http is deprecated and just includes net/http and openssl. We should include those directly instead.
+    RUBY
+
+    expect_correction(<<~RUBY)
+    require "net/http"
+    require "openssl"
+    RUBY
+  end
+
+  it "doesn't register an offense when requiring net/http" do
+    expect_no_offenses("require 'net/http'")
+  end
+end