add Redis.exists_return_integer flag and reinstate sidekiq 5.2.10 and… (

#3936)

* add Redis.exists_return_integer flag and reinstate sidekiq 5.2.10 and redis 4.5

* move redis gem in Gemfile so gems are in alphabetical order

* update gemfile.next to pull redis gem

Gemfile

@@ -51,6 +51,7 @@ else
   gem 'rails', '~> 5.0'
 end
 gem 'ranked-model', '~> 0.4.8'
+gem 'redis', '~> 4.5'
 gem 'restpack_serializer', git: 'https://github.com/zooniverse/restpack_serializer.git', branch: 'panoptes-api-version', ref: 'cef0969cef'
 gem 'schema_plus_pg_indexes', '~> 0.1'
 gem 'scientist', '~> 1.6.3'

Gemfile.lock

@@ -301,7 +301,7 @@ GEM
     pundit (2.2.0)
       activesupport (>= 3.0.0)
     racc (1.6.0)
-    rack (2.0.9)
+    rack (2.2.4)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-protection (2.2.2)
@@ -338,7 +338,7 @@ GEM
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redis (4.1.4)
+    redis (4.5.1)
     regexp_parser (2.3.1)
     request_store (1.5.1)
       rack (>= 1.4)
@@ -419,11 +419,11 @@ GEM
       schema_plus_indexes (~> 0.2, >= 0.2.4)
     scientist (1.6.3)
     shellany (0.0.1)
-    sidekiq (5.2.8)
+    sidekiq (5.2.10)
       connection_pool (~> 2.2, >= 2.2.2)
-      rack (< 2.1.0)
+      rack (~> 2.0)
       rack-protection (>= 1.5.0)
-      redis (>= 3.3.5, < 5)
+      redis (~> 4.5, < 4.6.0)
     sidekiq-congestion (0.1.1)
       congestion (~> 0.1)
       sidekiq (>= 3.0)
@@ -534,6 +534,7 @@ DEPENDENCIES
   rack-cors (~> 1.0)
   rails (~> 5.0)
   ranked-model (~> 0.4.8)
+  redis (~> 4.5)
   restpack_serializer!
   rspec
   rspec-its

Gemfile.next.lock

@@ -534,6 +534,7 @@ DEPENDENCIES
   rack-cors (~> 1.0)
   rails (~> 5.0)
   ranked-model (~> 0.4.8)
+  redis (~> 4.5)
   restpack_serializer!
   rspec
   rspec-its

config/initializers/sidekiq.rb

@@ -4,6 +4,9 @@ def self.redis_url
   end
 end
 
+require 'redis'
+Redis.exists_returns_integer = false
+
 Sidekiq.configure_client do |config|
   config.redis = { url: SidekiqConfig.redis_url }
 end