Wanderland Core: Config

YAML configuration loader with ERB interpolation and core boundary boot.

ERB Interpolation

Config values support ERB templates. Environment variables are accessed via an EnvBinding class that handles both cases:

• <%= gitlab_url %> — method_missing, upcases to ENV["GITLAB_URL"]
• <%= GITLAB_URL %> — const_missing, reads ENV["GITLAB_URL"]

Missing env vars raise ConfigError with the source expression. No silent nils.

Boot Sequence

Wanderland.boot(config_path) does:

• Load and interpolate the YAML config
• Load core boundaries from wanderland-core/lib/wanderland/boundaries/
• Load site boundaries from the configured boundary_path
• Mount routes on the engine (core first, then site)
• Return the Rack app

Config Shape

service: dark-lantern
port: 9293
boundary_path: lib/dark_lantern/boundaries

routes:
  /repos:
    boundary: repo_list
    method: get
  /repos/:repo/tree:
    chain: [resolve_repo, repo_tree]
    method: get

# Everything not an engine key is domain config,
# passed to boundaries via input["config"]
repos:
  kremis:
    url: /home/user/repos/kremis
    grammars: [ruby]

Source File

wanderland-core/lib/wanderland/config.rb