1use anyhow::{Context as _, Result};
2use async_trait::async_trait;
3use futures::StreamExt;
4use gpui::AsyncApp;
5use language::{
6 LanguageToolchainStore, LspAdapter, LspAdapterDelegate, language_settings::AllLanguageSettings,
7};
8use lsp::{LanguageServerBinary, LanguageServerName};
9use node_runtime::NodeRuntime;
10use project::{Fs, lsp_store::language_server_settings};
11use serde_json::Value;
12use settings::{Settings, SettingsLocation};
13use smol::fs;
14use std::{
15 any::Any,
16 ffi::OsString,
17 path::{Path, PathBuf},
18 sync::Arc,
19};
20use util::{ResultExt, maybe, merge_json_value_into};
21
22const SERVER_PATH: &str = "node_modules/yaml-language-server/bin/yaml-language-server";
23
24fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {
25 vec![server_path.into(), "--stdio".into()]
26}
27
28pub struct YamlLspAdapter {
29 node: NodeRuntime,
30}
31
32impl YamlLspAdapter {
33 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("yaml-language-server");
34 const PACKAGE_NAME: &str = "yaml-language-server";
35 pub fn new(node: NodeRuntime) -> Self {
36 YamlLspAdapter { node }
37 }
38}
39
40#[async_trait(?Send)]
41impl LspAdapter for YamlLspAdapter {
42 fn name(&self) -> LanguageServerName {
43 Self::SERVER_NAME.clone()
44 }
45
46 async fn fetch_latest_server_version(
47 &self,
48 _: &dyn LspAdapterDelegate,
49 ) -> Result<Box<dyn 'static + Any + Send>> {
50 Ok(Box::new(
51 self.node
52 .npm_package_latest_version("yaml-language-server")
53 .await?,
54 ) as Box<_>)
55 }
56
57 async fn check_if_user_installed(
58 &self,
59 delegate: &dyn LspAdapterDelegate,
60 _: Arc<dyn LanguageToolchainStore>,
61 _: &AsyncApp,
62 ) -> Option<LanguageServerBinary> {
63 let path = delegate.which(Self::SERVER_NAME.as_ref()).await?;
64 let env = delegate.shell_env().await;
65
66 Some(LanguageServerBinary {
67 path,
68 env: Some(env),
69 arguments: vec!["--stdio".into()],
70 })
71 }
72
73 async fn fetch_server_binary(
74 &self,
75 latest_version: Box<dyn 'static + Send + Any>,
76 container_dir: PathBuf,
77 _: &dyn LspAdapterDelegate,
78 ) -> Result<LanguageServerBinary> {
79 let latest_version = latest_version.downcast::<String>().unwrap();
80 let server_path = container_dir.join(SERVER_PATH);
81
82 self.node
83 .npm_install_packages(
84 &container_dir,
85 &[(Self::PACKAGE_NAME, latest_version.as_str())],
86 )
87 .await?;
88
89 Ok(LanguageServerBinary {
90 path: self.node.binary_path().await?,
91 env: None,
92 arguments: server_binary_arguments(&server_path),
93 })
94 }
95
96 async fn check_if_version_installed(
97 &self,
98 version: &(dyn 'static + Send + Any),
99 container_dir: &PathBuf,
100 _: &dyn LspAdapterDelegate,
101 ) -> Option<LanguageServerBinary> {
102 let version = version.downcast_ref::<String>().unwrap();
103 let server_path = container_dir.join(SERVER_PATH);
104
105 let should_install_language_server = self
106 .node
107 .should_install_npm_package(Self::PACKAGE_NAME, &server_path, &container_dir, &version)
108 .await;
109
110 if should_install_language_server {
111 None
112 } else {
113 Some(LanguageServerBinary {
114 path: self.node.binary_path().await.ok()?,
115 env: None,
116 arguments: server_binary_arguments(&server_path),
117 })
118 }
119 }
120
121 async fn cached_server_binary(
122 &self,
123 container_dir: PathBuf,
124 _: &dyn LspAdapterDelegate,
125 ) -> Option<LanguageServerBinary> {
126 get_cached_server_binary(container_dir, &self.node).await
127 }
128
129 async fn workspace_configuration(
130 self: Arc<Self>,
131 _: &dyn Fs,
132 delegate: &Arc<dyn LspAdapterDelegate>,
133 _: Arc<dyn LanguageToolchainStore>,
134 cx: &mut AsyncApp,
135 ) -> Result<Value> {
136 let location = SettingsLocation {
137 worktree_id: delegate.worktree_id(),
138 path: delegate.worktree_root_path(),
139 };
140
141 let tab_size = cx.update(|cx| {
142 AllLanguageSettings::get(Some(location), cx)
143 .language(Some(location), Some(&"YAML".into()), cx)
144 .tab_size
145 })?;
146
147 let mut options = serde_json::json!({
148 "[yaml]": {"editor.tabSize": tab_size},
149 "yaml": {"format": {"enable": true}}
150 });
151
152 let project_options = cx.update(|cx| {
153 language_server_settings(delegate.as_ref(), &Self::SERVER_NAME, cx)
154 .and_then(|s| s.settings.clone())
155 })?;
156 if let Some(override_options) = project_options {
157 merge_json_value_into(override_options, &mut options);
158 }
159 Ok(options)
160 }
161}
162
163async fn get_cached_server_binary(
164 container_dir: PathBuf,
165 node: &NodeRuntime,
166) -> Option<LanguageServerBinary> {
167 maybe!(async {
168 let mut last_version_dir = None;
169 let mut entries = fs::read_dir(&container_dir).await?;
170 while let Some(entry) = entries.next().await {
171 let entry = entry?;
172 if entry.file_type().await?.is_dir() {
173 last_version_dir = Some(entry.path());
174 }
175 }
176 let last_version_dir = last_version_dir.context("no cached binary")?;
177 let server_path = last_version_dir.join(SERVER_PATH);
178 anyhow::ensure!(
179 server_path.exists(),
180 "missing executable in directory {last_version_dir:?}"
181 );
182 Ok(LanguageServerBinary {
183 path: node.binary_path().await?,
184 env: None,
185 arguments: server_binary_arguments(&server_path),
186 })
187 })
188 .await
189 .log_err()
190}