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