cli-config

Overview ¶

Package main demonstrates using go-codex for CLI tool configuration: loading a TOML config file and overlaying environment variable overrides.

Pattern:

1. Define AppConfig and configCodec once — the single source of truth for field names, types, validations, and documentation.
2. Decode the config file through the codec (catches all file errors upfront).
3. Apply environment variable overrides to the decoded struct.
4. Re-validate the final struct (catches bad env values with the same constraints).

Run with: go run ./examples/cli-config