libero/config

Types

Config

Everything libero needs to drive a single client’s codegen output. Built by toml_config.to_codegen_config from gleam.toml.

pub type Config {
  Config(
    ws_path: String,
    atoms_output: String,
    atoms_module: String,
    config_output: String,
    register_relpath_prefix: String,
    decoders_ffi_output: String,
    decoders_gleam_output: String,
    decoders_prelude_import_path: String,
    server_generated: String,
    client_generated: String,
  )
}

Constructors

```
Config(
  ws_path: String,
  atoms_output: String,
  atoms_module: String,
  config_output: String,
  register_relpath_prefix: String,
  decoders_ffi_output: String,
  decoders_gleam_output: String,
  decoders_prelude_import_path: String,
  server_generated: String,
  client_generated: String,
)
```
Arguments

ws_path

Path-only WebSocket route. The generated client resolves it against window.location at boot, which lets multi-tenant deployments share one bundle across subdomains.

atoms_output

Path to the generated .erl file that pre-registers all constructor atoms for safe ETF decoding.

atoms_module

Erlang module name for the atoms .erl file, using Gleam’s path-to-module convention (@ separators).

register_relpath_prefix

Bundle-relative prefix that prepends every import in the generated FFI .mjs file. Depth depends on where the decoder files land inside the consumer client package.

decoders_ffi_output

Path to the generated rpc_decoders_ffi.mjs file.

decoders_gleam_output

Path to the generated rpc_decoders.gleam wrapper file.

decoders_prelude_import_path

Import path the generated decoders FFI uses to pull from the static decoders_prelude.mjs shipped with libero.

Values

prefix_paths

</>

pub fn prefix_paths(
  config config: Config,
  project_path project_path: String,
) -> Config

Return a copy of config whose output paths are rooted at project_path.

to_codegen_config builds a Config with paths relative to the project root. The codegen functions write at those paths via simplifile, which resolves them against CWD. When the caller (typically cli/gen.run) is driving codegen against a project at a path other than CWD, the writes land in the wrong place. This helper rewrites the output fields so they resolve correctly regardless of CWD.