# `ExAthena.Lsp.ServerRegistry`
[🔗](https://github.com/udin-io/ex_athena/blob/v0.7.1/lib/ex_athena/lsp/server_registry.ex#L1)

Maps file extensions to language atoms and language atoms to LSP server
spawn specifications.

## Language detection

`language_for_path/1` inspects the file extension and returns a language
atom, or `nil` for unknown types.

## Spawn specs

`spawn_spec/1` resolves the server binary via `System.find_executable/1`
(injectable for tests via the optional second argument) and returns
`{:ok, %{binary: path, args: [...]}}` or `{:error, :unsupported}`.

## Application-env override

Set `Application.put_env(:ex_athena, :lsp_servers, overrides)` where
`overrides` is a map of `language_atom => %{binary: path, args: [...]}`
to replace or disable default servers without editing source. Overridden
specs skip `find_executable` lookup — the binary path is used as-is.

# `language_for_path`

```elixir
@spec language_for_path(Path.t()) :: atom() | nil
```

Return the language atom for the given file path based on its extension,
or `nil` if the extension is not recognized.

# `spawn_spec`

```elixir
@spec spawn_spec(atom(), (String.t() -> String.t() | nil)) ::
  {:ok, %{binary: String.t(), args: [String.t()]}} | {:error, :unsupported}
```

Return the spawn spec for `language`, resolving the binary via
`find_executable` (defaults to `System.find_executable/1`).

Returns `{:ok, %{binary: path, args: [...]}}` or `{:error, :unsupported}`.

---

*Consult [api-reference.md](api-reference.md) for complete listing*