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(
108 Self::PACKAGE_NAME,
109 &server_path,
110 &container_dir,
111 &version,
112 Default::default(),
113 )
114 .await;
115
116 if should_install_language_server {
117 None
118 } else {
119 Some(LanguageServerBinary {
120 path: self.node.binary_path().await.ok()?,
121 env: None,
122 arguments: server_binary_arguments(&server_path),
123 })
124 }
125 }
126
127 async fn cached_server_binary(
128 &self,
129 container_dir: PathBuf,
130 _: &dyn LspAdapterDelegate,
131 ) -> Option<LanguageServerBinary> {
132 get_cached_server_binary(container_dir, &self.node).await
133 }
134
135 async fn workspace_configuration(
136 self: Arc<Self>,
137 _: &dyn Fs,
138 delegate: &Arc<dyn LspAdapterDelegate>,
139 _: Arc<dyn LanguageToolchainStore>,
140 cx: &mut AsyncApp,
141 ) -> Result<Value> {
142 let location = SettingsLocation {
143 worktree_id: delegate.worktree_id(),
144 path: delegate.worktree_root_path(),
145 };
146
147 let tab_size = cx.update(|cx| {
148 AllLanguageSettings::get(Some(location), cx)
149 .language(Some(location), Some(&"YAML".into()), cx)
150 .tab_size
151 })?;
152
153 let mut options = serde_json::json!({
154 "[yaml]": {"editor.tabSize": tab_size},
155 "yaml": {"format": {"enable": true}}
156 });
157
158 let project_options = cx.update(|cx| {
159 language_server_settings(delegate.as_ref(), &Self::SERVER_NAME, cx)
160 .and_then(|s| s.settings.clone())
161 })?;
162 if let Some(override_options) = project_options {
163 merge_json_value_into(override_options, &mut options);
164 }
165 Ok(options)
166 }
167}
168
169async fn get_cached_server_binary(
170 container_dir: PathBuf,
171 node: &NodeRuntime,
172) -> Option<LanguageServerBinary> {
173 maybe!(async {
174 let mut last_version_dir = None;
175 let mut entries = fs::read_dir(&container_dir).await?;
176 while let Some(entry) = entries.next().await {
177 let entry = entry?;
178 if entry.file_type().await?.is_dir() {
179 last_version_dir = Some(entry.path());
180 }
181 }
182 let last_version_dir = last_version_dir.context("no cached binary")?;
183 let server_path = last_version_dir.join(SERVER_PATH);
184 anyhow::ensure!(
185 server_path.exists(),
186 "missing executable in directory {last_version_dir:?}"
187 );
188 Ok(LanguageServerBinary {
189 path: node.binary_path().await?,
190 env: None,
191 arguments: server_binary_arguments(&server_path),
192 })
193 })
194 .await
195 .log_err()
196}