147 lines
4.5 KiB
Rust
147 lines
4.5 KiB
Rust
use anyhow::{anyhow, bail, Result};
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use async_compression::futures::bufread::GzipDecoder;
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use async_tar::Archive;
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use async_trait::async_trait;
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use futures::{io::BufReader, StreamExt};
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use language::{LanguageServerName, LspAdapterDelegate};
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use lsp::LanguageServerBinary;
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use smol::fs;
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use std::{any::Any, env::consts, path::PathBuf};
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use util::{
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async_maybe,
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github::{latest_github_release, GitHubLspBinaryVersion},
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ResultExt,
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};
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#[derive(Copy, Clone)]
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pub struct LuaLspAdapter;
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#[async_trait]
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impl super::LspAdapter for LuaLspAdapter {
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fn name(&self) -> LanguageServerName {
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LanguageServerName("lua-language-server".into())
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}
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async fn fetch_latest_server_version(
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&self,
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delegate: &dyn LspAdapterDelegate,
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) -> Result<Box<dyn 'static + Send + Any>> {
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let os = match consts::OS {
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"macos" => "darwin",
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"linux" => "linux",
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"windows" => "win32",
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other => bail!("Running on unsupported os: {other}"),
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};
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let platform = match consts::ARCH {
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"x86_64" => "x64",
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"aarch64" => "arm64",
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other => bail!("Running on unsupported platform: {other}"),
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};
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let release = latest_github_release(
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"LuaLS/lua-language-server",
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true,
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false,
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delegate.http_client(),
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)
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.await?;
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let version = &release.tag_name;
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let asset_name = format!("lua-language-server-{version}-{os}-{platform}.tar.gz");
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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(|| anyhow!("no asset found matching {:?}", asset_name))?;
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let version = GitHubLspBinaryVersion {
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name: release.tag_name,
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url: asset.browser_download_url.clone(),
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};
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Ok(Box::new(version) as Box<_>)
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}
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async fn fetch_server_binary(
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&self,
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version: Box<dyn 'static + Send + Any>,
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container_dir: PathBuf,
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delegate: &dyn LspAdapterDelegate,
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) -> Result<LanguageServerBinary> {
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let version = version.downcast::<GitHubLspBinaryVersion>().unwrap();
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let binary_path = container_dir.join("bin/lua-language-server");
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if fs::metadata(&binary_path).await.is_err() {
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let mut response = delegate
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.http_client()
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.get(&version.url, Default::default(), true)
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.await
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.map_err(|err| anyhow!("error downloading release: {}", err))?;
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let decompressed_bytes = GzipDecoder::new(BufReader::new(response.body_mut()));
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let archive = Archive::new(decompressed_bytes);
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archive.unpack(container_dir).await?;
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}
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// todo(windows)
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#[cfg(not(windows))]
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{
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fs::set_permissions(
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&binary_path,
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<fs::Permissions as fs::unix::PermissionsExt>::from_mode(0o755),
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)
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.await?;
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}
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Ok(LanguageServerBinary {
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path: binary_path,
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env: None,
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arguments: Vec::new(),
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})
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}
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async fn cached_server_binary(
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&self,
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container_dir: PathBuf,
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_: &dyn LspAdapterDelegate,
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) -> Option<LanguageServerBinary> {
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get_cached_server_binary(container_dir).await
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}
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async fn installation_test_binary(
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&self,
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container_dir: PathBuf,
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) -> Option<LanguageServerBinary> {
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get_cached_server_binary(container_dir)
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.await
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.map(|mut binary| {
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binary.arguments = vec!["--version".into()];
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binary
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})
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}
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}
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async fn get_cached_server_binary(container_dir: PathBuf) -> Option<LanguageServerBinary> {
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async_maybe!({
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let mut last_binary_path = None;
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let mut entries = fs::read_dir(&container_dir).await?;
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while let Some(entry) = entries.next().await {
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let entry = entry?;
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if entry.file_type().await?.is_file()
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&& entry
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.file_name()
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.to_str()
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.map_or(false, |name| name == "lua-language-server")
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{
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last_binary_path = Some(entry.path());
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}
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}
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if let Some(path) = last_binary_path {
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Ok(LanguageServerBinary {
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path,
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env: None,
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arguments: Vec::new(),
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})
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} else {
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Err(anyhow!("no cached binary"))
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}
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})
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.await
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.log_err()
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}
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