use zed_extension_api::{self as zed, settings::LspSettings, LanguageServerId, Result}; pub struct RubocopBinary {    pub path: String,    pub args: Option<Vec<String>>,} pub struct Rubocop {} impl Rubocop {    pub const LANGUAGE_SERVER_ID: &'static str = "rubocop";     pub fn new() -> Self {        Self {}    }     pub fn language_server_command(        &mut self,        language_server_id: &LanguageServerId,        worktree: &zed::Worktree,    ) -> Result<zed::Command> {        let binary = self.language_server_binary(language_server_id, worktree)?;         Ok(zed::Command {            command: binary.path,            args: binary.args.unwrap_or_else(|| vec!["--lsp".to_string()]),            env: worktree.shell_env(),        })    }     fn language_server_binary(        &self,        _language_server_id: &LanguageServerId,        worktree: &zed::Worktree,    ) -> Result<RubocopBinary> {        let binary_settings = LspSettings::for_worktree("rubocop", worktree)            .ok()            .and_then(|lsp_settings| lsp_settings.binary);        let binary_args = binary_settings            .as_ref()            .and_then(|binary_settings| binary_settings.arguments.clone());         if let Some(path) = binary_settings.and_then(|binary_settings| binary_settings.path) {            return Ok(RubocopBinary {                path,                args: binary_args,            });        }         if let Some(path) = worktree.which("rubocop") {            return Ok(RubocopBinary {                path,                args: binary_args,            });        }         Err("rubocop must be installed manually. Install it with `gem install rubocop` or specify the 'binary' path to it via local settings.".to_string())    }}