1use anyhow::Result;
2use async_trait::async_trait;
3use gpui::AsyncApp;
4use language::{
5 LspAdapter, LspAdapterDelegate, LspInstaller, Toolchain, language_settings::AllLanguageSettings,
6};
7use lsp::{LanguageServerBinary, LanguageServerName, Uri};
8use node_runtime::{NodeRuntime, VersionStrategy};
9use project::lsp_store::language_server_settings;
10use serde_json::Value;
11use settings::{Settings, SettingsLocation};
12use std::{
13 ffi::OsString,
14 path::{Path, PathBuf},
15 sync::Arc,
16};
17use util::{ResultExt, maybe, merge_json_value_into, rel_path::RelPath};
18
19const SERVER_PATH: &str = "node_modules/yaml-language-server/bin/yaml-language-server";
20
21fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {
22 vec![server_path.into(), "--stdio".into()]
23}
24
25pub struct YamlLspAdapter {
26 node: NodeRuntime,
27}
28
29impl YamlLspAdapter {
30 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("yaml-language-server");
31 const PACKAGE_NAME: &str = "yaml-language-server";
32 pub fn new(node: NodeRuntime) -> Self {
33 YamlLspAdapter { node }
34 }
35}
36
37impl LspInstaller for YamlLspAdapter {
38 type BinaryVersion = String;
39
40 async fn fetch_latest_server_version(
41 &self,
42 _: &dyn LspAdapterDelegate,
43 _: bool,
44 _: &mut AsyncApp,
45 ) -> Result<String> {
46 self.node
47 .npm_package_latest_version("yaml-language-server")
48 .await
49 }
50
51 async fn check_if_user_installed(
52 &self,
53 delegate: &dyn LspAdapterDelegate,
54 _: Option<Toolchain>,
55 _: &AsyncApp,
56 ) -> Option<LanguageServerBinary> {
57 let path = delegate.which(Self::SERVER_NAME.as_ref()).await?;
58 let env = delegate.shell_env().await;
59
60 Some(LanguageServerBinary {
61 path,
62 env: Some(env),
63 arguments: vec!["--stdio".into()],
64 })
65 }
66
67 async fn fetch_server_binary(
68 &self,
69 latest_version: String,
70 container_dir: PathBuf,
71 _: &dyn LspAdapterDelegate,
72 ) -> Result<LanguageServerBinary> {
73 let server_path = container_dir.join(SERVER_PATH);
74
75 self.node
76 .npm_install_packages(
77 &container_dir,
78 &[(Self::PACKAGE_NAME, latest_version.as_str())],
79 )
80 .await?;
81
82 Ok(LanguageServerBinary {
83 path: self.node.binary_path().await?,
84 env: None,
85 arguments: server_binary_arguments(&server_path),
86 })
87 }
88
89 async fn check_if_version_installed(
90 &self,
91 version: &String,
92 container_dir: &PathBuf,
93 _: &dyn LspAdapterDelegate,
94 ) -> Option<LanguageServerBinary> {
95 let server_path = container_dir.join(SERVER_PATH);
96
97 let should_install_language_server = self
98 .node
99 .should_install_npm_package(
100 Self::PACKAGE_NAME,
101 &server_path,
102 container_dir,
103 VersionStrategy::Latest(version),
104 )
105 .await;
106
107 if should_install_language_server {
108 None
109 } else {
110 Some(LanguageServerBinary {
111 path: self.node.binary_path().await.ok()?,
112 env: None,
113 arguments: server_binary_arguments(&server_path),
114 })
115 }
116 }
117
118 async fn cached_server_binary(
119 &self,
120 container_dir: PathBuf,
121 _: &dyn LspAdapterDelegate,
122 ) -> Option<LanguageServerBinary> {
123 get_cached_server_binary(container_dir, &self.node).await
124 }
125}
126
127#[async_trait(?Send)]
128impl LspAdapter for YamlLspAdapter {
129 fn name(&self) -> LanguageServerName {
130 Self::SERVER_NAME
131 }
132
133 async fn workspace_configuration(
134 self: Arc<Self>,
135 delegate: &Arc<dyn LspAdapterDelegate>,
136 _: Option<Toolchain>,
137 _: Option<Uri>,
138 cx: &mut AsyncApp,
139 ) -> Result<Value> {
140 let location = SettingsLocation {
141 worktree_id: delegate.worktree_id(),
142 path: RelPath::empty(),
143 };
144
145 let tab_size = cx.update(|cx| {
146 AllLanguageSettings::get(Some(location), cx)
147 .language(Some(location), Some(&"YAML".into()), cx)
148 .tab_size
149 })?;
150
151 let mut options = serde_json::json!({
152 "[yaml]": {"editor.tabSize": tab_size},
153 "yaml": {"format": {"enable": true}}
154 });
155
156 let project_options = cx.update(|cx| {
157 language_server_settings(delegate.as_ref(), &Self::SERVER_NAME, cx)
158 .and_then(|s| s.settings.clone())
159 })?;
160 if let Some(override_options) = project_options {
161 merge_json_value_into(override_options, &mut options);
162 }
163 Ok(options)
164 }
165}
166
167async fn get_cached_server_binary(
168 container_dir: PathBuf,
169 node: &NodeRuntime,
170) -> Option<LanguageServerBinary> {
171 maybe!(async {
172 let server_path = container_dir.join(SERVER_PATH);
173 anyhow::ensure!(
174 server_path.exists(),
175 "missing executable in directory {server_path:?}"
176 );
177 Ok(LanguageServerBinary {
178 path: node.binary_path().await?,
179 env: None,
180 arguments: server_binary_arguments(&server_path),
181 })
182 })
183 .await
184 .log_err()
185}