[rubygems/rubygems] Fix `path` vs `deployment` precedence when path set through ENV

The `deployment` setting sets `path` to `vendor/bundle` implicitly, but
that should only apply if `path` is not set explicitly, at any level.

https://github.com/rubygems/rubygems/commit/3552c064c1

1 files changed, 6 insertions, 0 deletions

diff --git a/spec/bundler/install/deploy_spec.rb b/spec/bundler/install/deploy_spec.rb
index fb97e5c34c..3f98d56f41 100644
--- a/spec/bundler/install/deploy_spec.rb
+++ b/spec/bundler/install/deploy_spec.rb
@@ -248,6 +248,12 @@ RSpec.describe "install in deployment or frozen mode" do
       expect(out).to include("vendor/bundle2")
     end
 
+    it "installs gems to custom path if specified, even when configured through ENV" do
+      bundle "config set deployment true"
+      bundle "install", :env => { "BUNDLE_PATH" => "vendor/bundle2" }
+      expect(out).to include("vendor/bundle2")
+    end
+
     it "works with the `frozen` setting" do
       bundle "config set frozen true"
       bundle "install"