Piotr Osiewicz
e6c1c51b37
It's not comprehensive enough to start linting on `style` group, but hey, it's a start. Release Notes: - N/A
113 lines
3.7 KiB
Rust
113 lines
3.7 KiB
Rust
use std::fs;
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use zed_extension_api::{self as zed, LanguageServerId, Result};
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pub struct ErlangLanguagePlatform {
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cached_binary_path: Option<String>,
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}
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impl ErlangLanguagePlatform {
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pub const LANGUAGE_SERVER_ID: &'static str = "elp";
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pub fn new() -> Self {
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Self {
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cached_binary_path: None,
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}
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}
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pub fn language_server_command(
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&mut self,
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language_server_id: &LanguageServerId,
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worktree: &zed::Worktree,
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) -> Result<zed::Command> {
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Ok(zed::Command {
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command: self.language_server_binary_path(language_server_id, worktree)?,
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args: vec!["server".to_string()],
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env: Default::default(),
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})
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}
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fn language_server_binary_path(
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&mut self,
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language_server_id: &LanguageServerId,
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worktree: &zed::Worktree,
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) -> Result<String> {
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if let Some(path) = worktree.which("elp") {
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return Ok(path);
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}
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if let Some(path) = &self.cached_binary_path {
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if fs::metadata(path).map_or(false, |stat| stat.is_file()) {
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return Ok(path.clone());
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}
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}
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zed::set_language_server_installation_status(
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language_server_id,
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&zed::LanguageServerInstallationStatus::CheckingForUpdate,
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);
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let release = zed::latest_github_release(
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"WhatsApp/erlang-language-platform",
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zed::GithubReleaseOptions {
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require_assets: true,
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pre_release: false,
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},
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)?;
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let (platform, arch) = zed::current_platform();
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let asset_name = {
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let otp_version = "26.2";
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let (os, os_target) = match platform {
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zed::Os::Mac => ("macos", "apple-darwin"),
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zed::Os::Linux => ("linux", "unknown-linux-gnu"),
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zed::Os::Windows => return Err(format!("unsupported platform: {platform:?}")),
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};
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format!(
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"elp-{os}-{arch}-{os_target}-otp-{otp_version}.tar.gz",
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arch = match arch {
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zed::Architecture::Aarch64 => "aarch64",
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zed::Architecture::X8664 => "x86_64",
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zed::Architecture::X86 =>
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return Err(format!("unsupported architecture: {arch:?}")),
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},
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)
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};
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let asset = release
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.assets
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.iter()
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.find(|asset| asset.name == asset_name)
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.ok_or_else(|| format!("no asset found matching {:?}", asset_name))?;
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let version_dir = format!("elp-{}", release.version);
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let binary_path = format!("{version_dir}/elp");
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if !fs::metadata(&binary_path).map_or(false, |stat| stat.is_file()) {
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zed::set_language_server_installation_status(
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language_server_id,
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&zed::LanguageServerInstallationStatus::Downloading,
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);
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zed::download_file(
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&asset.download_url,
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&version_dir,
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zed::DownloadedFileType::GzipTar,
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)
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.map_err(|e| format!("failed to download file: {e}"))?;
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let entries =
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fs::read_dir(".").map_err(|e| format!("failed to list working directory {e}"))?;
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for entry in entries {
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let entry = entry.map_err(|e| format!("failed to load directory entry {e}"))?;
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if entry.file_name().to_str() != Some(&version_dir) {
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fs::remove_dir_all(entry.path()).ok();
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}
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}
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}
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self.cached_binary_path = Some(binary_path.clone());
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Ok(binary_path)
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}
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}
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