config.rb in souls-1.5.6

- old
+ new

@@ -2,11 +2,13 @@
   class Upgrade < Thor
     desc "config", "Update config/souls.rb"
     def config
       souls = Souls.configuration
       prompt = TTY::Prompt.new
+      regions = `gcloud app regions list | awk '{print $1}'`.split("\n")
+      regions.shift
       project_id = prompt.ask("Project ID:", default: souls.project_id)
-      region = prompt.ask("Region:", default: souls.region)
+      region = prompt.select("Region:", regions, default: souls.region)
       endpoint = prompt.ask("Endpoint:", default: souls.endpoint)
 
       Dir.chdir(Souls.get_mother_path.to_s) do
         mother_conf_path = "config/souls.rb"
         api_conf_path = "apps/api/config/souls.rb"