use std::fs; use zed_extension_api::{self as zed, LanguageServerId, Result}; pub struct Phpactor {    cached_binary_path: Option<String>,} impl Phpactor {    pub const LANGUAGE_SERVER_ID: &'static str = "phpactor";     pub fn new() -> Self {        Self {            cached_binary_path: None,        }    }     pub fn language_server_binary_path(        &mut self,        language_server_id: &LanguageServerId,        worktree: &zed::Worktree,    ) -> Result<String> {        if let Some(path) = worktree.which("phpactor") {            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(            language_server_id,            &zed::LanguageServerInstallationStatus::CheckingForUpdate,        );        let release = zed::latest_github_release(            "phpactor/phpactor",            zed::GithubReleaseOptions {                require_assets: true,                pre_release: false,            },        )?;         let asset_name = "phpactor.phar";        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!("phpactor-{}", release.version);        fs::create_dir_all(&version_dir).map_err(|e| format!("failed to create directory: {e}"))?;         let binary_path = format!("{version_dir}/phpactor.phar");         if !fs::metadata(&binary_path).map_or(false, |stat| stat.is_file()) {            zed::set_language_server_installation_status(                language_server_id,                &zed::LanguageServerInstallationStatus::Downloading,            );             zed::download_file(                &asset.download_url,                &binary_path,                zed::DownloadedFileType::Uncompressed,            )            .map_err(|e| format!("failed to download file: {e}"))?;             zed::make_file_executable(&binary_path)?;             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)    }}