1use anyhow::{anyhow, Result};
2use fs::Fs;
3use gpui::{AppContext, AsyncAppContext, Context, Model, ModelContext};
4use language::{proto::serialize_operation, Buffer, BufferEvent, LanguageRegistry};
5use node_runtime::DummyNodeRuntime;
6use project::{
7 buffer_store::{BufferStore, BufferStoreEvent},
8 project_settings::SettingsObserver,
9 search::SearchQuery,
10 worktree_store::WorktreeStore,
11 LspStore, LspStoreEvent, PrettierStore, ProjectPath, WorktreeId,
12};
13use remote::SshSession;
14use rpc::{
15 proto::{self, SSH_PEER_ID, SSH_PROJECT_ID},
16 AnyProtoClient, TypedEnvelope,
17};
18use smol::stream::StreamExt;
19use std::{
20 path::{Path, PathBuf},
21 sync::{atomic::AtomicUsize, Arc},
22};
23use util::ResultExt;
24use worktree::Worktree;
25
26pub struct HeadlessProject {
27 pub fs: Arc<dyn Fs>,
28 pub session: AnyProtoClient,
29 pub worktree_store: Model<WorktreeStore>,
30 pub buffer_store: Model<BufferStore>,
31 pub lsp_store: Model<LspStore>,
32 pub settings_observer: Model<SettingsObserver>,
33 pub next_entry_id: Arc<AtomicUsize>,
34 pub languages: Arc<LanguageRegistry>,
35}
36
37impl HeadlessProject {
38 pub fn init(cx: &mut AppContext) {
39 settings::init(cx);
40 language::init(cx);
41 project::Project::init_settings(cx);
42 }
43
44 pub fn new(session: Arc<SshSession>, fs: Arc<dyn Fs>, cx: &mut ModelContext<Self>) -> Self {
45 let mut languages = LanguageRegistry::new(cx.background_executor().clone());
46 languages
47 .set_language_server_download_dir(PathBuf::from("/Users/conrad/what-could-go-wrong"));
48
49 let languages = Arc::new(languages);
50
51 let worktree_store = cx.new_model(|_| WorktreeStore::new(true, fs.clone()));
52 let buffer_store = cx.new_model(|cx| {
53 let mut buffer_store =
54 BufferStore::new(worktree_store.clone(), Some(SSH_PROJECT_ID), cx);
55 buffer_store.shared(SSH_PROJECT_ID, session.clone().into(), cx);
56 buffer_store
57 });
58 let prettier_store = cx.new_model(|cx| {
59 PrettierStore::new(
60 DummyNodeRuntime::new(),
61 fs.clone(),
62 languages.clone(),
63 worktree_store.clone(),
64 cx,
65 )
66 });
67
68 let settings_observer = cx.new_model(|cx| {
69 let mut observer = SettingsObserver::new_local(fs.clone(), worktree_store.clone(), cx);
70 observer.shared(SSH_PROJECT_ID, session.clone().into(), cx);
71 observer
72 });
73 let environment = project::ProjectEnvironment::new(&worktree_store, None, cx);
74 let lsp_store = cx.new_model(|cx| {
75 let mut lsp_store = LspStore::new_local(
76 buffer_store.clone(),
77 worktree_store.clone(),
78 prettier_store.clone(),
79 environment,
80 languages.clone(),
81 None,
82 fs.clone(),
83 cx,
84 );
85 lsp_store.shared(SSH_PROJECT_ID, session.clone().into(), cx);
86 lsp_store
87 });
88
89 cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
90
91 cx.subscribe(
92 &buffer_store,
93 |_this, _buffer_store, event, cx| match event {
94 BufferStoreEvent::BufferAdded(buffer) => {
95 cx.subscribe(buffer, Self::on_buffer_event).detach();
96 }
97 _ => {}
98 },
99 )
100 .detach();
101
102 let client: AnyProtoClient = session.clone().into();
103
104 session.subscribe_to_entity(SSH_PROJECT_ID, &worktree_store);
105 session.subscribe_to_entity(SSH_PROJECT_ID, &buffer_store);
106 session.subscribe_to_entity(SSH_PROJECT_ID, &cx.handle());
107 session.subscribe_to_entity(SSH_PROJECT_ID, &lsp_store);
108 session.subscribe_to_entity(SSH_PROJECT_ID, &settings_observer);
109
110 client.add_request_handler(cx.weak_model(), Self::handle_list_remote_directory);
111
112 client.add_model_request_handler(Self::handle_add_worktree);
113 client.add_model_request_handler(Self::handle_open_buffer_by_path);
114 client.add_model_request_handler(Self::handle_find_search_candidates);
115
116 client.add_model_request_handler(BufferStore::handle_update_buffer);
117 client.add_model_message_handler(BufferStore::handle_close_buffer);
118
119 client.add_model_request_handler(LspStore::handle_create_language_server);
120 client.add_model_request_handler(LspStore::handle_which_command);
121 client.add_model_request_handler(LspStore::handle_shell_env);
122 client.add_model_request_handler(LspStore::handle_try_exec);
123 client.add_model_request_handler(LspStore::handle_read_text_file);
124
125 BufferStore::init(&client);
126 WorktreeStore::init(&client);
127 SettingsObserver::init(&client);
128 LspStore::init(&client);
129
130 HeadlessProject {
131 session: client,
132 settings_observer,
133 fs,
134 worktree_store,
135 buffer_store,
136 lsp_store,
137 next_entry_id: Default::default(),
138 languages,
139 }
140 }
141
142 fn on_buffer_event(
143 &mut self,
144 buffer: Model<Buffer>,
145 event: &BufferEvent,
146 cx: &mut ModelContext<Self>,
147 ) {
148 match event {
149 BufferEvent::Operation(op) => cx
150 .background_executor()
151 .spawn(self.session.request(proto::UpdateBuffer {
152 project_id: SSH_PROJECT_ID,
153 buffer_id: buffer.read(cx).remote_id().to_proto(),
154 operations: vec![serialize_operation(op)],
155 }))
156 .detach(),
157 _ => {}
158 }
159 }
160
161 fn on_lsp_store_event(
162 &mut self,
163 _lsp_store: Model<LspStore>,
164 event: &LspStoreEvent,
165 _cx: &mut ModelContext<Self>,
166 ) {
167 match event {
168 LspStoreEvent::LanguageServerUpdate {
169 language_server_id,
170 message,
171 } => {
172 self.session
173 .send(proto::UpdateLanguageServer {
174 project_id: SSH_PROJECT_ID,
175 language_server_id: language_server_id.to_proto(),
176 variant: Some(message.clone()),
177 })
178 .log_err();
179 }
180 _ => {}
181 }
182 }
183
184 pub async fn handle_add_worktree(
185 this: Model<Self>,
186 message: TypedEnvelope<proto::AddWorktree>,
187 mut cx: AsyncAppContext,
188 ) -> Result<proto::AddWorktreeResponse> {
189 let path = shellexpand::tilde(&message.payload.path).to_string();
190 let worktree = this
191 .update(&mut cx.clone(), |this, _| {
192 Worktree::local(
193 Path::new(&path),
194 true,
195 this.fs.clone(),
196 this.next_entry_id.clone(),
197 &mut cx,
198 )
199 })?
200 .await?;
201
202 this.update(&mut cx, |this, cx| {
203 let session = this.session.clone();
204 this.worktree_store.update(cx, |worktree_store, cx| {
205 worktree_store.add(&worktree, cx);
206 });
207 worktree.update(cx, |worktree, cx| {
208 worktree.observe_updates(0, cx, move |update| {
209 session.send(update).ok();
210 futures::future::ready(true)
211 });
212 proto::AddWorktreeResponse {
213 worktree_id: worktree.id().to_proto(),
214 }
215 })
216 })
217 }
218
219 pub async fn handle_open_buffer_by_path(
220 this: Model<Self>,
221 message: TypedEnvelope<proto::OpenBufferByPath>,
222 mut cx: AsyncAppContext,
223 ) -> Result<proto::OpenBufferResponse> {
224 let worktree_id = WorktreeId::from_proto(message.payload.worktree_id);
225 let (buffer_store, buffer) = this.update(&mut cx, |this, cx| {
226 let buffer_store = this.buffer_store.clone();
227 let buffer = this.buffer_store.update(cx, |buffer_store, cx| {
228 buffer_store.open_buffer(
229 ProjectPath {
230 worktree_id,
231 path: PathBuf::from(message.payload.path).into(),
232 },
233 cx,
234 )
235 });
236 anyhow::Ok((buffer_store, buffer))
237 })??;
238
239 let buffer = buffer.await?;
240 let buffer_id = buffer.read_with(&cx, |b, _| b.remote_id())?;
241 buffer_store.update(&mut cx, |buffer_store, cx| {
242 buffer_store
243 .create_buffer_for_peer(&buffer, SSH_PEER_ID, cx)
244 .detach_and_log_err(cx);
245 })?;
246
247 Ok(proto::OpenBufferResponse {
248 buffer_id: buffer_id.to_proto(),
249 })
250 }
251
252 pub async fn handle_find_search_candidates(
253 this: Model<Self>,
254 envelope: TypedEnvelope<proto::FindSearchCandidates>,
255 mut cx: AsyncAppContext,
256 ) -> Result<proto::FindSearchCandidatesResponse> {
257 let message = envelope.payload;
258 let query = SearchQuery::from_proto(
259 message
260 .query
261 .ok_or_else(|| anyhow!("missing query field"))?,
262 )?;
263 let mut results = this.update(&mut cx, |this, cx| {
264 this.buffer_store.update(cx, |buffer_store, cx| {
265 buffer_store.find_search_candidates(&query, message.limit as _, this.fs.clone(), cx)
266 })
267 })?;
268
269 let mut response = proto::FindSearchCandidatesResponse {
270 buffer_ids: Vec::new(),
271 };
272
273 let buffer_store = this.read_with(&cx, |this, _| this.buffer_store.clone())?;
274
275 while let Some(buffer) = results.next().await {
276 let buffer_id = buffer.update(&mut cx, |this, _| this.remote_id())?;
277 response.buffer_ids.push(buffer_id.to_proto());
278 buffer_store
279 .update(&mut cx, |buffer_store, cx| {
280 buffer_store.create_buffer_for_peer(&buffer, SSH_PEER_ID, cx)
281 })?
282 .await?;
283 }
284
285 Ok(response)
286 }
287
288 pub async fn handle_list_remote_directory(
289 this: Model<Self>,
290 envelope: TypedEnvelope<proto::ListRemoteDirectory>,
291 cx: AsyncAppContext,
292 ) -> Result<proto::ListRemoteDirectoryResponse> {
293 let expanded = shellexpand::tilde(&envelope.payload.path).to_string();
294 let fs = cx.read_model(&this, |this, _| this.fs.clone())?;
295
296 let mut entries = Vec::new();
297 let mut response = fs.read_dir(Path::new(&expanded)).await?;
298 while let Some(path) = response.next().await {
299 if let Some(file_name) = path?.file_name() {
300 entries.push(file_name.to_string_lossy().to_string());
301 }
302 }
303 Ok(proto::ListRemoteDirectoryResponse { entries })
304 }
305}