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 semver::Version;
11use serde_json::Value;
12use settings::{Settings, SettingsLocation};
13use std::{
14 ffi::OsString,
15 path::{Path, PathBuf},
16 sync::Arc,
17};
18use util::{ResultExt, maybe, merge_json_value_into, rel_path::RelPath};
19
20const SERVER_PATH: &str = "node_modules/yaml-language-server/bin/yaml-language-server";
21
22fn server_binary_arguments(server_path: &Path) -> Vec<OsString> {
23 vec![server_path.into(), "--stdio".into()]
24}
25
26pub struct YamlLspAdapter {
27 node: NodeRuntime,
28}
29
30impl YamlLspAdapter {
31 const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("yaml-language-server");
32 const PACKAGE_NAME: &str = "yaml-language-server";
33 pub fn new(node: NodeRuntime) -> Self {
34 YamlLspAdapter { node }
35 }
36}
37
38impl LspInstaller for YamlLspAdapter {
39 type BinaryVersion = Version;
40
41 async fn fetch_latest_server_version(
42 &self,
43 _: &dyn LspAdapterDelegate,
44 _: bool,
45 _: &mut AsyncApp,
46 ) -> Result<Self::BinaryVersion> {
47 self.node
48 .npm_package_latest_version("yaml-language-server")
49 .await
50 }
51
52 async fn check_if_user_installed(
53 &self,
54 delegate: &dyn LspAdapterDelegate,
55 _: Option<Toolchain>,
56 _: &AsyncApp,
57 ) -> Option<LanguageServerBinary> {
58 let path = delegate.which(Self::SERVER_NAME.as_ref()).await?;
59 let env = delegate.shell_env().await;
60
61 Some(LanguageServerBinary {
62 path,
63 env: Some(env),
64 arguments: vec!["--stdio".into()],
65 })
66 }
67
68 async fn fetch_server_binary(
69 &self,
70 latest_version: Self::BinaryVersion,
71 container_dir: PathBuf,
72 _: &dyn LspAdapterDelegate,
73 ) -> Result<LanguageServerBinary> {
74 let server_path = container_dir.join(SERVER_PATH);
75
76 self.node
77 .npm_install_packages(
78 &container_dir,
79 &[(Self::PACKAGE_NAME, &latest_version.to_string())],
80 )
81 .await?;
82
83 Ok(LanguageServerBinary {
84 path: self.node.binary_path().await?,
85 env: None,
86 arguments: server_binary_arguments(&server_path),
87 })
88 }
89
90 async fn check_if_version_installed(
91 &self,
92 version: &Self::BinaryVersion,
93 container_dir: &PathBuf,
94 _: &dyn LspAdapterDelegate,
95 ) -> Option<LanguageServerBinary> {
96 let server_path = container_dir.join(SERVER_PATH);
97
98 let should_install_language_server = self
99 .node
100 .should_install_npm_package(
101 Self::PACKAGE_NAME,
102 &server_path,
103 container_dir,
104 VersionStrategy::Latest(version),
105 )
106 .await;
107
108 if should_install_language_server {
109 None
110 } else {
111 Some(LanguageServerBinary {
112 path: self.node.binary_path().await.ok()?,
113 env: None,
114 arguments: server_binary_arguments(&server_path),
115 })
116 }
117 }
118
119 async fn cached_server_binary(
120 &self,
121 container_dir: PathBuf,
122 _: &dyn LspAdapterDelegate,
123 ) -> Option<LanguageServerBinary> {
124 get_cached_server_binary(container_dir, &self.node).await
125 }
126}
127
128#[async_trait(?Send)]
129impl LspAdapter for YamlLspAdapter {
130 fn name(&self) -> LanguageServerName {
131 Self::SERVER_NAME
132 }
133
134 async fn workspace_configuration(
135 self: Arc<Self>,
136 delegate: &Arc<dyn LspAdapterDelegate>,
137 _: Option<Toolchain>,
138 _: Option<Uri>,
139 cx: &mut AsyncApp,
140 ) -> Result<Value> {
141 let location = SettingsLocation {
142 worktree_id: delegate.worktree_id(),
143 path: RelPath::empty(),
144 };
145
146 let tab_size = cx.update(|cx| {
147 AllLanguageSettings::get(Some(location), cx)
148 .language(Some(location), Some(&"YAML".into()), cx)
149 .tab_size
150 })?;
151
152 let mut options = serde_json::json!({
153 "[yaml]": {"editor.tabSize": tab_size},
154 "yaml": {"format": {"enable": true}}
155 });
156
157 let project_options = cx.update(|cx| {
158 language_server_settings(delegate.as_ref(), &Self::SERVER_NAME, cx)
159 .and_then(|s| s.settings.clone())
160 })?;
161 if let Some(override_options) = project_options {
162 merge_json_value_into(override_options, &mut options);
163 }
164 Ok(options)
165 }
166}
167
168async fn get_cached_server_binary(
169 container_dir: PathBuf,
170 node: &NodeRuntime,
171) -> Option<LanguageServerBinary> {
172 maybe!(async {
173 let server_path = container_dir.join(SERVER_PATH);
174 anyhow::ensure!(
175 server_path.exists(),
176 "missing executable in directory {server_path:?}"
177 );
178 Ok(LanguageServerBinary {
179 path: node.binary_path().await?,
180 env: None,
181 arguments: server_binary_arguments(&server_path),
182 })
183 })
184 .await
185 .log_err()
186}