[bundler/bundler] Deprecate `--path` flag to `bundle check`

https://github.com/bundler/bundler/commit/0a0e7cf5ec

lib/bundler/cli.rb

@@ -156,6 +156,8 @@ module Bundler
       "Specify a different path than the system default ($BUNDLE_PATH or $GEM_HOME).#{" Bundler will remember this value for future installs on this machine" unless Bundler.feature_flag.forget_cli_options?}"
     map "c" => "check"
     def check
+      remembered_flag_deprecation("path")
+
       require_relative "cli/check"
       Check.new(options).run
     end

spec/bundler/other/major_deprecation_spec.rb

@@ -95,6 +95,28 @@ RSpec.describe "major deprecations" do
     end
   end
 
+  context "bundle check --path" do
+    before do
+      install_gemfile <<-G
+        source "#{file_uri_for(gem_repo1)}"
+        gem "rack"
+      G
+
+      bundle "check --path vendor/bundle"
+    end
+
+    it "should print a deprecation warning", :bundler => "2" do
+      expect(deprecations).to include(
+        "The `--path` flag is deprecated because it relies on being " \
+        "remembered accross bundler invokations, which bundler will no " \
+        "longer do in future versions. Instead please use `bundle config set " \
+        "path 'vendor/bundle'`, and stop using this flag"
+      )
+    end
+
+    pending "should fail with a helpful error", :bundler => "3"
+  end
+
   describe "bundle config" do
     describe "old list interface" do
       before do