RCBC-516: Include storage_backend in get_bucket/get_all_buckets results (#173)

Author: DemetrisChr

ext/couchbase

@@ -506,6 +506,18 @@ cb_extract_bucket_settings(const core::management::cluster::bucket_settings& ent
         break;
     }
   }
+  switch (entry.storage_backend) {
+    case core::management::cluster::bucket_storage_backend::couchstore:
+      rb_hash_aset(
+        bucket, rb_id2sym(rb_intern("storage_backend")), rb_id2sym(rb_intern("couchstore")));
+      break;
+    case core::management::cluster::bucket_storage_backend::magma:
+      rb_hash_aset(bucket, rb_id2sym(rb_intern("storage_backend")), rb_id2sym(rb_intern("magma")));
+      break;
+    case core::management::cluster::bucket_storage_backend::unknown:
+      rb_hash_aset(bucket, rb_id2sym(rb_intern("storage_backend")), Qnil);
+      break;
+  }
   if (entry.history_retention_collection_default.has_value()) {
     rb_hash_aset(bucket,
                  rb_id2sym(rb_intern("history_retention_collection_default")),

ext/rcb_buckets.cxx

@@ -206,7 +206,6 @@ def initialize(backend)
       def create_bucket(settings, options = Options::Bucket::CreateBucket.new)
         @backend.bucket_create(
           {
-
             name: settings.name,
             flush_enabled: settings.flush_enabled,
             ram_quota_mb: settings.ram_quota_mb,
@@ -342,6 +341,7 @@ def extract_bucket_settings(entry)
           bucket.minimum_durability_level = entry[:minimum_durability_level]
           bucket.compression_mode = entry[:compression_mode]
           bucket.instance_variable_set(:@healthy, entry[:nodes].all? { |node| node[:status] == "healthy" })
+          bucket.storage_backend = entry[:storage_backend]
           bucket.history_retention_collection_default = entry[:history_retention_collection_default]
           bucket.history_retention_bytes = entry[:history_retention_bytes]
           bucket.history_retention_duration = entry[:history_retention_duration]