From 6c3700a824ca4e5833e91265ac9a78a5ea6b1742 Mon Sep 17 00:00:00 2001
From: Vladimir Dementyev <dementiev.vm@gmail.com>
Date: Wed, 14 May 2025 16:28:27 -0700
Subject: [PATCH] feat: support YAML aliases in configuration

So I can write my config as follows:

```yml
default_gpt: &default_gpt
  service: open_ai
  model: "gpt-4o-mini"
  temperature: 0.5
  api_key: <%= Rails.application.credentials.openai&.api_key %>

development:
  gpt:
    <<: *default_gpt

production:
  gpt:
    <<: *default_gpt

test:
  gpt:
    service: fake_llm
```
---
 lib/active_agent.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/active_agent.rb b/lib/active_agent.rb
index 8e773d1d..6f37e957 100644
--- a/lib/active_agent.rb
+++ b/lib/active_agent.rb
@@ -49,7 +49,7 @@ def configure
 
     def load_configuration(file)
       if File.exist?(file)
-        config_file = YAML.load(ERB.new(File.read(file)).result)
+        config_file = YAML.load(ERB.new(File.read(file)).result, aliases: true)
         env = ENV["RAILS_ENV"] || ENV["ENV"] || "development"
         @config = config_file[env] || config_file
       end