1use anyhow::{anyhow, Result};
2use async_trait::async_trait;
3use futures::StreamExt;
4use gpui::AsyncAppContext;
5use language::{
6 language_settings::AllLanguageSettings, LanguageToolchainStore, LspAdapter, LspAdapterDelegate,
7};
8use lsp::{LanguageServerBinary, LanguageServerName};
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 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 fetch_server_binary(
58 &self,
59 latest_version: Box<dyn 'static + Send + Any>,
60 container_dir: PathBuf,
61 _: &dyn LspAdapterDelegate,
62 ) -> Result<LanguageServerBinary> {
63 let latest_version = latest_version.downcast::<String>().unwrap();
64 let server_path = container_dir.join(SERVER_PATH);
65
66 self.node
67 .npm_install_packages(
68 &container_dir,
69 &[(Self::PACKAGE_NAME, latest_version.as_str())],
70 )
71 .await?;
72
73 Ok(LanguageServerBinary {
74 path: self.node.binary_path().await?,
75 env: None,
76 arguments: server_binary_arguments(&server_path),
77 })
78 }
79
80 async fn check_if_version_installed(
81 &self,
82 version: &(dyn 'static + Send + Any),
83 container_dir: &PathBuf,
84 _: &dyn LspAdapterDelegate,
85 ) -> Option<LanguageServerBinary> {
86 let version = version.downcast_ref::<String>().unwrap();
87 let server_path = container_dir.join(SERVER_PATH);
88
89 let should_install_language_server = self
90 .node
91 .should_install_npm_package(Self::PACKAGE_NAME, &server_path, &container_dir, &version)
92 .await;
93
94 if should_install_language_server {
95 None
96 } else {
97 Some(LanguageServerBinary {
98 path: self.node.binary_path().await.ok()?,
99 env: None,
100 arguments: server_binary_arguments(&server_path),
101 })
102 }
103 }
104
105 async fn cached_server_binary(
106 &self,
107 container_dir: PathBuf,
108 _: &dyn LspAdapterDelegate,
109 ) -> Option<LanguageServerBinary> {
110 get_cached_server_binary(container_dir, &self.node).await
111 }
112
113 async fn workspace_configuration(
114 self: Arc<Self>,
115 delegate: &Arc<dyn LspAdapterDelegate>,
116 _: Arc<dyn LanguageToolchainStore>,
117 cx: &mut AsyncAppContext,
118 ) -> Result<Value> {
119 let location = SettingsLocation {
120 worktree_id: delegate.worktree_id(),
121 path: delegate.worktree_root_path(),
122 };
123
124 let tab_size = cx.update(|cx| {
125 AllLanguageSettings::get(Some(location), cx)
126 .language(Some(location), Some(&"YAML".into()), cx)
127 .tab_size
128 })?;
129 let mut options = serde_json::json!({"[yaml]": {"editor.tabSize": tab_size}});
130
131 let project_options = cx.update(|cx| {
132 language_server_settings(delegate.as_ref(), &Self::SERVER_NAME, cx)
133 .and_then(|s| s.settings.clone())
134 })?;
135 if let Some(override_options) = project_options {
136 merge_json_value_into(override_options, &mut options);
137 }
138 Ok(options)
139 }
140}
141
142async fn get_cached_server_binary(
143 container_dir: PathBuf,
144 node: &NodeRuntime,
145) -> Option<LanguageServerBinary> {
146 maybe!(async {
147 let mut last_version_dir = None;
148 let mut entries = fs::read_dir(&container_dir).await?;
149 while let Some(entry) = entries.next().await {
150 let entry = entry?;
151 if entry.file_type().await?.is_dir() {
152 last_version_dir = Some(entry.path());
153 }
154 }
155 let last_version_dir = last_version_dir.ok_or_else(|| anyhow!("no cached binary"))?;
156 let server_path = last_version_dir.join(SERVER_PATH);
157 if server_path.exists() {
158 Ok(LanguageServerBinary {
159 path: node.binary_path().await?,
160 env: None,
161 arguments: server_binary_arguments(&server_path),
162 })
163 } else {
164 Err(anyhow!(
165 "missing executable in directory {:?}",
166 last_version_dir
167 ))
168 }
169 })
170 .await
171 .log_err()
172}