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::project_settings::ProjectSettings;
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: Arc<dyn NodeRuntime>,
30}
31
32impl YamlLspAdapter {
33 const SERVER_NAME: &'static str = "yaml-language-server";
34 pub fn new(node: Arc<dyn NodeRuntime>) -> Self {
35 YamlLspAdapter { node }
36 }
37}
38
39#[async_trait(?Send)]
40impl LspAdapter for YamlLspAdapter {
41 fn name(&self) -> LanguageServerName {
42 LanguageServerName(Self::SERVER_NAME.into())
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 ProjectSettings::get_global(cx)
53 .lsp
54 .get(Self::SERVER_NAME)
55 .and_then(|s| s.binary.clone())
56 })
57 .ok()??;
58
59 let path = if let Some(configured_path) = configured_binary.path.map(PathBuf::from) {
60 configured_path
61 } else {
62 self.node.binary_path().await.ok()?
63 };
64
65 let arguments = configured_binary
66 .arguments
67 .unwrap_or_default()
68 .iter()
69 .map(|arg| arg.into())
70 .collect();
71 Some(LanguageServerBinary {
72 path,
73 arguments,
74 env: None,
75 })
76 }
77
78 async fn fetch_latest_server_version(
79 &self,
80 _: &dyn LspAdapterDelegate,
81 ) -> Result<Box<dyn 'static + Any + Send>> {
82 Ok(Box::new(
83 self.node
84 .npm_package_latest_version("yaml-language-server")
85 .await?,
86 ) as Box<_>)
87 }
88
89 async fn fetch_server_binary(
90 &self,
91 latest_version: Box<dyn 'static + Send + Any>,
92 container_dir: PathBuf,
93 _: &dyn LspAdapterDelegate,
94 ) -> Result<LanguageServerBinary> {
95 let latest_version = latest_version.downcast::<String>().unwrap();
96 let server_path = container_dir.join(SERVER_PATH);
97 let package_name = "yaml-language-server";
98
99 let should_install_language_server = self
100 .node
101 .should_install_npm_package(package_name, &server_path, &container_dir, &latest_version)
102 .await;
103
104 if should_install_language_server {
105 self.node
106 .npm_install_packages(&container_dir, &[(package_name, latest_version.as_str())])
107 .await?;
108 }
109
110 Ok(LanguageServerBinary {
111 path: self.node.binary_path().await?,
112 env: None,
113 arguments: server_binary_arguments(&server_path),
114 })
115 }
116
117 async fn cached_server_binary(
118 &self,
119 container_dir: PathBuf,
120 _: &dyn LspAdapterDelegate,
121 ) -> Option<LanguageServerBinary> {
122 get_cached_server_binary(container_dir, &*self.node).await
123 }
124
125 async fn installation_test_binary(
126 &self,
127 container_dir: PathBuf,
128 ) -> Option<LanguageServerBinary> {
129 get_cached_server_binary(container_dir, &*self.node).await
130 }
131
132 async fn workspace_configuration(
133 self: Arc<Self>,
134 delegate: &Arc<dyn LspAdapterDelegate>,
135 cx: &mut AsyncAppContext,
136 ) -> Result<Value> {
137 let location = SettingsLocation {
138 worktree_id: delegate.worktree_id(),
139 path: delegate.worktree_root_path(),
140 };
141
142 let tab_size = cx.update(|cx| {
143 AllLanguageSettings::get(Some(location), cx)
144 .language(Some("YAML"))
145 .tab_size
146 })?;
147 let mut options = serde_json::json!({"[yaml]": {"editor.tabSize": tab_size}});
148
149 let project_options = cx.update(|cx| {
150 ProjectSettings::get_global(cx)
151 .lsp
152 .get(Self::SERVER_NAME)
153 .and_then(|s| s.initialization_options.clone())
154 })?;
155 if let Some(override_options) = project_options {
156 merge_json_value_into(override_options, &mut options);
157 }
158 Ok(options)
159 }
160}
161
162async fn get_cached_server_binary(
163 container_dir: PathBuf,
164 node: &dyn NodeRuntime,
165) -> Option<LanguageServerBinary> {
166 maybe!(async {
167 let mut last_version_dir = None;
168 let mut entries = fs::read_dir(&container_dir).await?;
169 while let Some(entry) = entries.next().await {
170 let entry = entry?;
171 if entry.file_type().await?.is_dir() {
172 last_version_dir = Some(entry.path());
173 }
174 }
175 let last_version_dir = last_version_dir.ok_or_else(|| anyhow!("no cached binary"))?;
176 let server_path = last_version_dir.join(SERVER_PATH);
177 if server_path.exists() {
178 Ok(LanguageServerBinary {
179 path: node.binary_path().await?,
180 env: None,
181 arguments: server_binary_arguments(&server_path),
182 })
183 } else {
184 Err(anyhow!(
185 "missing executable in directory {:?}",
186 last_version_dir
187 ))
188 }
189 })
190 .await
191 .log_err()
192}