use std::fs;use zed_extension_api::{self as zed, Result}; struct ClojureExtension {    cached_binary_path: Option<String>,} impl ClojureExtension {    fn language_server_binary_path(        &mut self,        config: zed::LanguageServerConfig,        worktree: &zed::Worktree,    ) -> Result<String> {        if let Some(path) = worktree.which("clojure-lsp") {            return Ok(path);        }         if let Some(path) = &self.cached_binary_path {            if fs::metadata(path).map_or(false, |stat| stat.is_file()) {                return Ok(path.clone());            }        }         zed::set_language_server_installation_status(            &config.name,            &zed::LanguageServerInstallationStatus::CheckingForUpdate,        );        let release = zed::latest_github_release(            "clojure-lsp/clojure-lsp",            zed::GithubReleaseOptions {                require_assets: true,                pre_release: false,            },        )?;         let (platform, arch) = zed::current_platform();        let asset_name = format!(            "clojure-lsp-native-{os}-{arch}.zip",            os = match platform {                zed::Os::Mac => "macos",                zed::Os::Linux => "linux",                zed::Os::Windows => "windows",            },            arch = match arch {                zed::Architecture::Aarch64 => "aarch64",                zed::Architecture::X8664 => "amd64",                zed::Architecture::X86 =>                    return Err(format!("unsupported architecture: {arch:?}")),            },        );         let asset = release            .assets            .iter()            .find(|asset| asset.name == asset_name)            .ok_or_else(|| format!("no asset found matching {:?}", asset_name))?;         let version_dir = format!("clojure-lsp-{}", release.version);        let binary_path = format!("{version_dir}/clojure-lsp");         if !fs::metadata(&binary_path).map_or(false, |stat| stat.is_file()) {            zed::set_language_server_installation_status(                &config.name,                &zed::LanguageServerInstallationStatus::Downloading,            );             zed::download_file(                &asset.download_url,                &version_dir,                zed::DownloadedFileType::Zip,            )            .map_err(|e| format!("failed to download file: {e}"))?;             let entries =                fs::read_dir(".").map_err(|e| format!("failed to list working directory {e}"))?;            for entry in entries {                let entry = entry.map_err(|e| format!("failed to load directory entry {e}"))?;                if entry.file_name().to_str() != Some(&version_dir) {                    fs::remove_dir_all(&entry.path()).ok();                }            }        }         self.cached_binary_path = Some(binary_path.clone());        Ok(binary_path)    }} impl zed::Extension for ClojureExtension {    fn new() -> Self {        Self {            cached_binary_path: None,        }    }     fn language_server_command(        &mut self,        config: zed::LanguageServerConfig,        worktree: &zed::Worktree,    ) -> Result<zed::Command> {        Ok(zed::Command {            command: self.language_server_binary_path(config, worktree)?,            args: Vec::new(),            env: Default::default(),        })    }} zed::register_extension!(ClojureExtension);