131 lines
4.3 KiB
Rust
131 lines
4.3 KiB
Rust
use anyhow::{anyhow, Context, Result};
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use client::http::HttpClient;
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use futures::{future::BoxFuture, FutureExt, StreamExt};
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use language::{LspAdapter, LspBinaryVersion};
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use serde::Deserialize;
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use serde_json::json;
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use smol::fs;
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use std::{path::PathBuf, sync::Arc};
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use util::ResultExt;
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pub struct JsonLspAdapter;
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impl JsonLspAdapter {
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const BIN_PATH: &'static str =
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"node_modules/vscode-json-languageserver/bin/vscode-json-languageserver";
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}
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impl LspAdapter for JsonLspAdapter {
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fn name(&self) -> &'static str {
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"vscode-json-languageserver"
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}
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fn server_args(&self) -> &[&str] {
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&["--stdio"]
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}
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fn fetch_latest_server_version(
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&self,
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_: Arc<dyn HttpClient>,
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) -> BoxFuture<'static, Result<LspBinaryVersion>> {
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async move {
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#[derive(Deserialize)]
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struct NpmInfo {
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versions: Vec<String>,
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}
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let output = smol::process::Command::new("npm")
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.args(["info", "vscode-json-languageserver", "--json"])
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.output()
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.await?;
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if !output.status.success() {
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Err(anyhow!("failed to execute npm info"))?;
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}
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let mut info: NpmInfo = serde_json::from_slice(&output.stdout)?;
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Ok(LspBinaryVersion {
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name: info
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.versions
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.pop()
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.ok_or_else(|| anyhow!("no versions found in npm info"))?,
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url: Default::default(),
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})
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}
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.boxed()
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}
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fn fetch_server_binary(
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&self,
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version: LspBinaryVersion,
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_: Arc<dyn HttpClient>,
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container_dir: PathBuf,
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) -> BoxFuture<'static, Result<PathBuf>> {
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async move {
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let version_dir = container_dir.join(&version.name);
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fs::create_dir_all(&version_dir)
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.await
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.context("failed to create version directory")?;
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let binary_path = version_dir.join(Self::BIN_PATH);
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if fs::metadata(&binary_path).await.is_err() {
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let output = smol::process::Command::new("npm")
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.current_dir(&version_dir)
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.arg("install")
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.arg(format!("vscode-json-languageserver@{}", version.name))
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.output()
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.await
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.context("failed to run npm install")?;
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if !output.status.success() {
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Err(anyhow!("failed to install vscode-json-languageserver"))?;
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}
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if let Some(mut entries) = fs::read_dir(&container_dir).await.log_err() {
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while let Some(entry) = entries.next().await {
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if let Some(entry) = entry.log_err() {
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let entry_path = entry.path();
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if entry_path.as_path() != version_dir {
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fs::remove_dir_all(&entry_path).await.log_err();
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}
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}
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}
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}
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}
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Ok(binary_path)
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}
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.boxed()
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}
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fn cached_server_binary(&self, container_dir: PathBuf) -> BoxFuture<'static, Option<PathBuf>> {
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async move {
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let mut last_version_dir = 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_dir() {
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last_version_dir = Some(entry.path());
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}
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}
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let last_version_dir = last_version_dir.ok_or_else(|| anyhow!("no cached binary"))?;
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let bin_path = last_version_dir.join(Self::BIN_PATH);
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if bin_path.exists() {
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Ok(bin_path)
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} else {
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Err(anyhow!(
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"missing executable in directory {:?}",
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last_version_dir
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))
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}
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}
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.log_err()
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.boxed()
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}
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fn process_diagnostics(&self, _: &mut lsp::PublishDiagnosticsParams) {}
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fn initialization_options(&self) -> Option<serde_json::Value> {
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Some(json!({
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"provideFormatter": true
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}))
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}
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}
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