Allow custom vendored Ruby URL

Lets us provide our own custom set of vendored Ruby runtimes. Currently in use on our fork of this repo, but we'd like to merge it upstream.
heroku · Nov 29, 2023 · f73e058 · f73e058
1 parent 332aba4
commit f73e058
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/bin/support/download_ruby b/bin/support/download_ruby
@@ -26,7 +26,7 @@ curl_retry_on_18() {
 regex=".*ruby_version = [\'\"]([0-9]+\.[0-9]+\.[0-9]+)[\'\"].*"
 if [[ $(cat "$BIN_DIR/../buildpack.toml") =~ $regex ]]
   then
-    heroku_buildpack_ruby_url="https://heroku-buildpack-ruby.s3.us-east-1.amazonaws.com/$STACK/ruby-${BASH_REMATCH[1]}.tgz"
+    heroku_buildpack_ruby_url="${BUILDPACK_VENDOR_URL:-https://heroku-buildpack-ruby.s3.us-east-1.amazonaws.com}/$STACK/ruby-${BASH_REMATCH[1]}.tgz"
   else
     echo "Could not detect ruby version to bootstrap"
     exit 1