Merge #330

330: Fix settings update regression r=ellnix a=ellnix

# Pull Request

## Related issue
Fixes #329
May fix #328

## What does this PR do?
- `SafeIndex` before I tried to fix #280 with #301 did not guarantee that its index exists at all, since ``@index`` was created asynchronously it was possible that `SafeIndex#settings` could be called on an index that does not exist.
  This line:
  https://github.com/meilisearch/meilisearch-rails/blob/29f59c88881b5a4b5a03d990f11d3aac220cd367/lib/meilisearch-rails.rb#L309 
  was supposed return an empty hash when asked to fetch the settings of an index that does not exist, however `ApiError#code` is the meilisearch code (`"index_not_found"`) and not the http code (`404`). That line was therefore skipped and the `index_not_found` error was being propagated and caught by the `rescue nil` in:
  https://github.com/meilisearch/meilisearch-rails/blob/e5ad4d1f10c078097bf211e4d3a6e1d48b24bbc5/lib/meilisearch-rails.rb#L750
  until I removed it and tried to replace it with ensuring that `SafeIndex` had an index by making `create_index!` synchronous and all kinds of hell broke loose since now every time an index was used would cause a synchronous wait.



Co-authored-by: ellnix <[email protected]>

lib/meilisearch-rails.rb

@@ -261,7 +261,7 @@ def initialize(index_uid, raise_on_failure, options)
         @raise_on_failure = raise_on_failure.nil? || raise_on_failure
 
         SafeIndex.log_or_throw(nil, @raise_on_failure) do
-          client.create_index!(index_uid, { primary_key: primary_key })
+          client.create_index(index_uid, { primary_key: primary_key })
         end
 
         @index = client.index(index_uid)
@@ -306,7 +306,7 @@ def settings(*args)
         SafeIndex.log_or_throw(:settings, @raise_on_failure) do
           @index.settings(*args)
         rescue ::MeiliSearch::ApiError => e
-          return {} if e.code == 404 # not fatal
+          return {} if e.code == 'index_not_found' # not fatal
 
           raise e
         end
@@ -843,7 +843,7 @@ def meilisearch_settings_changed?(server_state, user_configuration)
           if user.is_a?(Hash) && server.is_a?(Hash)
             meilisearch_settings_changed?(server, user)
           elsif user.is_a?(Array) && server.is_a?(Array)
-            user.map(&:to_s) != server.map(&:to_s)
+            user.map(&:to_s).sort! != server.map(&:to_s).sort!
           else
             user.to_s != server.to_s
           end

spec/integration_spec.rb

@@ -1136,23 +1136,22 @@
     let(:index_instance) { instance_double(MeiliSearch::Index, settings: nil, update_settings: nil) }
     let(:slow_client) { instance_double(MeiliSearch::Client, index: index_instance) }
 
+    before do
+      allow(slow_client).to receive(:create_index)
+      allow(MeiliSearch::Rails).to receive(:client).and_return(slow_client)
+    end
+
     it 'does not raise error timeouts on reindex' do
       allow(index_instance).to receive(:add_documents).and_raise(MeiliSearch::TimeoutError)
-      allow(slow_client).to receive(:create_index!).and_return(index_instance)
-
-      allow(MeiliSearch::Rails).to receive(:client).and_return(slow_client)
 
       expect do
         Vegetable.create(name: 'potato')
       end.not_to raise_error
     end
 
     it 'does not raise error timeouts on data addition' do
-      allow(slow_client).to receive(:create_index!).and_raise(MeiliSearch::TimeoutError)
       allow(index_instance).to receive(:add_documents).and_return(nil)
 
-      allow(MeiliSearch::Rails).to receive(:client).and_return(slow_client)
-
       expect do
         Vegetable.ms_reindex!
       end.not_to raise_error