1#![allow(unused_variables, dead_code, unused_mut)]
2// todo!() this is to make transition easier.
3
4// Allow binary to be called Zed for a nice application menu when running executable directly
5#![allow(non_snake_case)]
6
7use anyhow::{anyhow, Context as _, Result};
8use backtrace::Backtrace;
9use chrono::Utc;
10use cli::FORCE_CLI_MODE_ENV_VAR_NAME;
11use client::{Client, UserStore};
12use db::kvp::KEY_VALUE_STORE;
13use editor::Editor;
14use fs::RealFs;
15use futures::StreamExt;
16use gpui::{App, AppContext, AsyncAppContext, Context, SemanticVersion, Task};
17use isahc::{prelude::Configurable, Request};
18use language::LanguageRegistry;
19use log::LevelFilter;
20
21use node_runtime::RealNodeRuntime;
22use parking_lot::Mutex;
23use serde::{Deserialize, Serialize};
24use settings::{
25 default_settings, handle_keymap_file_changes, handle_settings_file_changes, watch_config_file,
26 Settings, SettingsStore,
27};
28use simplelog::ConfigBuilder;
29use smol::process::Command;
30use std::{
31 env,
32 ffi::OsStr,
33 fs::OpenOptions,
34 io::{IsTerminal, Write},
35 panic,
36 path::{Path, PathBuf},
37 sync::{
38 atomic::{AtomicU32, Ordering},
39 Arc, Weak,
40 },
41 thread,
42};
43use theme::ActiveTheme;
44use util::{
45 async_maybe,
46 channel::{parse_zed_link, AppCommitSha, ReleaseChannel, RELEASE_CHANNEL},
47 http::{self, HttpClient},
48 paths, ResultExt,
49};
50use uuid::Uuid;
51use welcome::{show_welcome_experience, FIRST_OPEN};
52use workspace::{AppState, WorkspaceStore};
53use zed2::{
54 build_window_options, ensure_only_instance, handle_cli_connection, initialize_workspace,
55 languages, Assets, IsOnlyInstance, OpenListener, OpenRequest,
56};
57
58mod open_listener;
59
60fn main() {
61 menu::init();
62 zed_actions::init();
63
64 let http = http::client();
65 init_paths();
66 init_logger();
67
68 if ensure_only_instance() != IsOnlyInstance::Yes {
69 return;
70 }
71
72 log::info!("========== starting zed ==========");
73 let app = App::production(Arc::new(Assets));
74
75 let (installation_id, existing_installation_id_found) = app
76 .background_executor()
77 .block(installation_id())
78 .ok()
79 .unzip();
80 let session_id = Uuid::new_v4().to_string();
81 init_panic_hook(&app, installation_id.clone(), session_id.clone());
82
83 let fs = Arc::new(RealFs);
84 let user_settings_file_rx = watch_config_file(
85 &app.background_executor(),
86 fs.clone(),
87 paths::SETTINGS.clone(),
88 );
89 let user_keymap_file_rx = watch_config_file(
90 &app.background_executor(),
91 fs.clone(),
92 paths::KEYMAP.clone(),
93 );
94
95 let login_shell_env_loaded = if stdout_is_a_pty() {
96 Task::ready(())
97 } else {
98 app.background_executor().spawn(async {
99 load_login_shell_environment().await.log_err();
100 })
101 };
102
103 let (listener, mut open_rx) = OpenListener::new();
104 let listener = Arc::new(listener);
105 let open_listener = listener.clone();
106 app.on_open_urls(move |urls, _| open_listener.open_urls(&urls));
107 app.on_reopen(move |cx| {
108 if cx.has_global::<Weak<AppState>>() {
109 if let Some(app_state) = cx.global::<Weak<AppState>>().upgrade() {
110 workspace::open_new(&app_state, cx, |workspace, cx| {
111 Editor::new_file(workspace, &Default::default(), cx)
112 })
113 .detach();
114 }
115 }
116 });
117
118 app.run(move |cx| {
119 cx.set_global(*RELEASE_CHANNEL);
120 if let Some(build_sha) = option_env!("ZED_COMMIT_SHA") {
121 cx.set_global(AppCommitSha(build_sha.into()))
122 }
123
124 cx.set_global(listener.clone());
125
126 load_embedded_fonts(cx);
127
128 let mut store = SettingsStore::default();
129 store
130 .set_default_settings(default_settings().as_ref(), cx)
131 .unwrap();
132 cx.set_global(store);
133 handle_settings_file_changes(user_settings_file_rx, cx);
134 handle_keymap_file_changes(user_keymap_file_rx, cx);
135
136 let client = client::Client::new(http.clone(), cx);
137 let mut languages = LanguageRegistry::new(login_shell_env_loaded);
138 let copilot_language_server_id = languages.next_language_server_id();
139 languages.set_executor(cx.background_executor().clone());
140 languages.set_language_server_download_dir(paths::LANGUAGES_DIR.clone());
141 let languages = Arc::new(languages);
142 let node_runtime = RealNodeRuntime::new(http.clone());
143
144 language::init(cx);
145 languages::init(languages.clone(), node_runtime.clone(), cx);
146 let user_store = cx.build_model(|cx| UserStore::new(client.clone(), http.clone(), cx));
147 let workspace_store = cx.build_model(|cx| WorkspaceStore::new(client.clone(), cx));
148
149 cx.set_global(client.clone());
150
151 theme::init(theme::LoadThemes::All, cx);
152 project::Project::init(&client, cx);
153 client::init(&client, cx);
154 command_palette::init(cx);
155 language::init(cx);
156 editor::init(cx);
157 diagnostics::init(cx);
158 copilot::init(
159 copilot_language_server_id,
160 http.clone(),
161 node_runtime.clone(),
162 cx,
163 );
164 // assistant::init(cx);
165 // component_test::init(cx);
166
167 // cx.spawn(|_| watch_languages(fs.clone(), languages.clone()))
168 // .detach();
169 watch_file_types(fs.clone(), cx);
170
171 languages.set_theme(cx.theme().clone());
172 cx.observe_global::<SettingsStore>({
173 let languages = languages.clone();
174 move |cx| languages.set_theme(cx.theme().clone())
175 })
176 .detach();
177
178 client.telemetry().start(installation_id, session_id, cx);
179 let telemetry_settings = *client::TelemetrySettings::get_global(cx);
180 let event_operation = match existing_installation_id_found {
181 Some(false) => "first open",
182 _ => "open",
183 };
184 client
185 .telemetry()
186 .report_app_event(telemetry_settings, event_operation);
187
188 let app_state = Arc::new(AppState {
189 languages,
190 client: client.clone(),
191 user_store: user_store.clone(),
192 fs,
193 build_window_options,
194 call_factory: call::Call::new,
195 workspace_store,
196 node_runtime,
197 });
198 cx.set_global(Arc::downgrade(&app_state));
199
200 audio::init(Assets, cx);
201 auto_update::init(http.clone(), client::ZED_SERVER_URL.clone(), cx);
202
203 workspace::init(app_state.clone(), cx);
204 // recent_projects::init(cx);
205
206 go_to_line::init(cx);
207 file_finder::init(cx);
208 // outline::init(cx);
209 // project_symbols::init(cx);
210 project_panel::init(Assets, cx);
211 channel::init(&client, user_store.clone(), cx);
212 // diagnostics::init(cx);
213 search::init(cx);
214 // semantic_index::init(fs.clone(), http.clone(), languages.clone(), cx);
215 // vim::init(cx);
216 terminal_view::init(cx);
217
218 // journal2::init(app_state.clone(), cx);
219 // language_selector::init(cx);
220 theme_selector::init(cx);
221 // activity_indicator::init(cx);
222 // language_tools::init(cx);
223 call::init(app_state.client.clone(), app_state.user_store.clone(), cx);
224 collab_ui::init(&app_state, cx);
225 // feedback::init(cx);
226 welcome::init(cx);
227
228 // cx.set_menus(menus::menus());
229 initialize_workspace(app_state.clone(), cx);
230
231 if stdout_is_a_pty() {
232 cx.activate(true);
233 let urls = collect_url_args();
234 if !urls.is_empty() {
235 listener.open_urls(&urls)
236 }
237 } else {
238 upload_previous_panics(http.clone(), cx);
239
240 // TODO Development mode that forces the CLI mode usually runs Zed binary as is instead
241 // of an *app, hence gets no specific callbacks run. Emulate them here, if needed.
242 if std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_some()
243 && !listener.triggered.load(Ordering::Acquire)
244 {
245 listener.open_urls(&collect_url_args())
246 }
247 }
248
249 let mut triggered_authentication = false;
250
251 fn open_paths_and_log_errs(
252 paths: &[PathBuf],
253 app_state: &Arc<AppState>,
254 cx: &mut AppContext,
255 ) {
256 let task = workspace::open_paths(&paths, &app_state, None, cx);
257 cx.spawn(|cx| async move {
258 if let Some((_window, results)) = task.await.log_err() {
259 for result in results {
260 if let Some(Err(e)) = result {
261 log::error!("Error opening path: {}", e);
262 }
263 }
264 }
265 })
266 .detach();
267 }
268
269 match open_rx.try_next() {
270 Ok(Some(OpenRequest::Paths { paths })) => {
271 open_paths_and_log_errs(&paths, &app_state, cx)
272 }
273 Ok(Some(OpenRequest::CliConnection { connection })) => {
274 let app_state = app_state.clone();
275 cx.spawn(move |cx| handle_cli_connection(connection, app_state, cx))
276 .detach();
277 }
278 Ok(Some(OpenRequest::JoinChannel { channel_id: _ })) => {
279 triggered_authentication = true;
280 let app_state = app_state.clone();
281 let client = client.clone();
282 cx.spawn(|mut cx| async move {
283 // ignore errors here, we'll show a generic "not signed in"
284 let _ = authenticate(client, &cx).await;
285 //todo!()
286 // cx.update(|cx| workspace::join_channel(channel_id, app_state, None, cx))
287 // .await
288 anyhow::Ok(())
289 })
290 .detach_and_log_err(cx)
291 }
292 Ok(Some(OpenRequest::OpenChannelNotes { channel_id: _ })) => {
293 todo!()
294 }
295 Ok(None) | Err(_) => cx
296 .spawn({
297 let app_state = app_state.clone();
298 |cx| async move { restore_or_create_workspace(&app_state, cx).await }
299 })
300 .detach(),
301 }
302
303 let app_state = app_state.clone();
304 cx.spawn(|cx| async move {
305 while let Some(request) = open_rx.next().await {
306 match request {
307 OpenRequest::Paths { paths } => {
308 cx.update(|cx| open_paths_and_log_errs(&paths, &app_state, cx))
309 .ok();
310 }
311 OpenRequest::CliConnection { connection } => {
312 let app_state = app_state.clone();
313 cx.spawn(move |cx| {
314 handle_cli_connection(connection, app_state.clone(), cx)
315 })
316 .detach();
317 }
318 OpenRequest::JoinChannel { channel_id: _ } => {
319 todo!()
320 }
321 OpenRequest::OpenChannelNotes { channel_id: _ } => {
322 todo!()
323 }
324 }
325 }
326 })
327 .detach();
328
329 if !triggered_authentication {
330 cx.spawn(|cx| async move { authenticate(client, &cx).await })
331 .detach_and_log_err(cx);
332 }
333 });
334}
335
336async fn authenticate(client: Arc<Client>, cx: &AsyncAppContext) -> Result<()> {
337 if stdout_is_a_pty() {
338 if client::IMPERSONATE_LOGIN.is_some() {
339 client.authenticate_and_connect(false, &cx).await?;
340 }
341 } else if client.has_keychain_credentials(&cx) {
342 client.authenticate_and_connect(true, &cx).await?;
343 }
344 Ok::<_, anyhow::Error>(())
345}
346
347async fn installation_id() -> Result<(String, bool)> {
348 let legacy_key_name = "device_id";
349
350 if let Ok(Some(installation_id)) = KEY_VALUE_STORE.read_kvp(legacy_key_name) {
351 Ok((installation_id, true))
352 } else {
353 let installation_id = Uuid::new_v4().to_string();
354
355 KEY_VALUE_STORE
356 .write_kvp(legacy_key_name.to_string(), installation_id.clone())
357 .await?;
358
359 Ok((installation_id, false))
360 }
361}
362
363async fn restore_or_create_workspace(app_state: &Arc<AppState>, mut cx: AsyncAppContext) {
364 async_maybe!({
365 if let Some(location) = workspace::last_opened_workspace_paths().await {
366 cx.update(|cx| workspace::open_paths(location.paths().as_ref(), app_state, None, cx))?
367 .await
368 .log_err();
369 } else if matches!(KEY_VALUE_STORE.read_kvp(FIRST_OPEN), Ok(None)) {
370 cx.update(|cx| show_welcome_experience(app_state, cx))
371 .log_err();
372 } else {
373 cx.update(|cx| {
374 workspace::open_new(app_state, cx, |workspace, cx| {
375 Editor::new_file(workspace, &Default::default(), cx)
376 })
377 .detach();
378 })?;
379 }
380 anyhow::Ok(())
381 })
382 .await
383 .log_err();
384}
385
386fn init_paths() {
387 std::fs::create_dir_all(&*util::paths::CONFIG_DIR).expect("could not create config path");
388 std::fs::create_dir_all(&*util::paths::LANGUAGES_DIR).expect("could not create languages path");
389 std::fs::create_dir_all(&*util::paths::DB_DIR).expect("could not create database path");
390 std::fs::create_dir_all(&*util::paths::LOGS_DIR).expect("could not create logs path");
391}
392
393fn init_logger() {
394 if stdout_is_a_pty() {
395 env_logger::init();
396 } else {
397 let level = LevelFilter::Info;
398
399 // Prevent log file from becoming too large.
400 const KIB: u64 = 1024;
401 const MIB: u64 = 1024 * KIB;
402 const MAX_LOG_BYTES: u64 = MIB;
403 if std::fs::metadata(&*paths::LOG).map_or(false, |metadata| metadata.len() > MAX_LOG_BYTES)
404 {
405 let _ = std::fs::rename(&*paths::LOG, &*paths::OLD_LOG);
406 }
407
408 let log_file = OpenOptions::new()
409 .create(true)
410 .append(true)
411 .open(&*paths::LOG)
412 .expect("could not open logfile");
413
414 let config = ConfigBuilder::new()
415 .set_time_format_str("%Y-%m-%dT%T") //All timestamps are UTC
416 .build();
417
418 simplelog::WriteLogger::init(level, config, log_file).expect("could not initialize logger");
419 }
420}
421
422#[derive(Serialize, Deserialize)]
423struct LocationData {
424 file: String,
425 line: u32,
426}
427
428#[derive(Serialize, Deserialize)]
429struct Panic {
430 thread: String,
431 payload: String,
432 #[serde(skip_serializing_if = "Option::is_none")]
433 location_data: Option<LocationData>,
434 backtrace: Vec<String>,
435 app_version: String,
436 release_channel: String,
437 os_name: String,
438 os_version: Option<String>,
439 architecture: String,
440 panicked_on: i64,
441 #[serde(skip_serializing_if = "Option::is_none")]
442 installation_id: Option<String>,
443 session_id: String,
444}
445
446#[derive(Serialize)]
447struct PanicRequest {
448 panic: Panic,
449 token: String,
450}
451
452static PANIC_COUNT: AtomicU32 = AtomicU32::new(0);
453
454fn init_panic_hook(app: &App, installation_id: Option<String>, session_id: String) {
455 let is_pty = stdout_is_a_pty();
456 let app_metadata = app.metadata();
457
458 panic::set_hook(Box::new(move |info| {
459 let prior_panic_count = PANIC_COUNT.fetch_add(1, Ordering::SeqCst);
460 if prior_panic_count > 0 {
461 // Give the panic-ing thread time to write the panic file
462 loop {
463 std::thread::yield_now();
464 }
465 }
466
467 let thread = thread::current();
468 let thread_name = thread.name().unwrap_or("<unnamed>");
469
470 let payload = info
471 .payload()
472 .downcast_ref::<&str>()
473 .map(|s| s.to_string())
474 .or_else(|| info.payload().downcast_ref::<String>().map(|s| s.clone()))
475 .unwrap_or_else(|| "Box<Any>".to_string());
476
477 if *util::channel::RELEASE_CHANNEL == ReleaseChannel::Dev {
478 let location = info.location().unwrap();
479 let backtrace = Backtrace::new();
480 eprintln!(
481 "Thread {:?} panicked with {:?} at {}:{}:{}\n{:?}",
482 thread_name,
483 payload,
484 location.file(),
485 location.line(),
486 location.column(),
487 backtrace,
488 );
489 std::process::exit(-1);
490 }
491
492 let app_version = client::ZED_APP_VERSION
493 .or(app_metadata.app_version)
494 .map_or("dev".to_string(), |v| v.to_string());
495
496 let backtrace = Backtrace::new();
497 let mut backtrace = backtrace
498 .frames()
499 .iter()
500 .filter_map(|frame| Some(format!("{:#}", frame.symbols().first()?.name()?)))
501 .collect::<Vec<_>>();
502
503 // Strip out leading stack frames for rust panic-handling.
504 if let Some(ix) = backtrace
505 .iter()
506 .position(|name| name == "rust_begin_unwind")
507 {
508 backtrace.drain(0..=ix);
509 }
510
511 let panic_data = Panic {
512 thread: thread_name.into(),
513 payload: payload.into(),
514 location_data: info.location().map(|location| LocationData {
515 file: location.file().into(),
516 line: location.line(),
517 }),
518 app_version: app_version.clone(),
519 release_channel: RELEASE_CHANNEL.display_name().into(),
520 os_name: app_metadata.os_name.into(),
521 os_version: app_metadata
522 .os_version
523 .as_ref()
524 .map(SemanticVersion::to_string),
525 architecture: env::consts::ARCH.into(),
526 panicked_on: Utc::now().timestamp_millis(),
527 backtrace,
528 installation_id: installation_id.clone(),
529 session_id: session_id.clone(),
530 };
531
532 if let Some(panic_data_json) = serde_json::to_string_pretty(&panic_data).log_err() {
533 log::error!("{}", panic_data_json);
534 }
535
536 if !is_pty {
537 if let Some(panic_data_json) = serde_json::to_string(&panic_data).log_err() {
538 let timestamp = chrono::Utc::now().format("%Y_%m_%d %H_%M_%S").to_string();
539 let panic_file_path = paths::LOGS_DIR.join(format!("zed-{}.panic", timestamp));
540 let panic_file = std::fs::OpenOptions::new()
541 .append(true)
542 .create(true)
543 .open(&panic_file_path)
544 .log_err();
545 if let Some(mut panic_file) = panic_file {
546 writeln!(&mut panic_file, "{}", panic_data_json).log_err();
547 panic_file.flush().log_err();
548 }
549 }
550 }
551
552 std::process::abort();
553 }));
554}
555
556fn upload_previous_panics(http: Arc<dyn HttpClient>, cx: &mut AppContext) {
557 let telemetry_settings = *client::TelemetrySettings::get_global(cx);
558
559 cx.background_executor()
560 .spawn(async move {
561 let panic_report_url = format!("{}/api/panic", &*client::ZED_SERVER_URL);
562 let mut children = smol::fs::read_dir(&*paths::LOGS_DIR).await?;
563 while let Some(child) = children.next().await {
564 let child = child?;
565 let child_path = child.path();
566
567 if child_path.extension() != Some(OsStr::new("panic")) {
568 continue;
569 }
570 let filename = if let Some(filename) = child_path.file_name() {
571 filename.to_string_lossy()
572 } else {
573 continue;
574 };
575
576 if !filename.starts_with("zed") {
577 continue;
578 }
579
580 if telemetry_settings.diagnostics {
581 let panic_file_content = smol::fs::read_to_string(&child_path)
582 .await
583 .context("error reading panic file")?;
584
585 let panic = serde_json::from_str(&panic_file_content)
586 .ok()
587 .or_else(|| {
588 panic_file_content
589 .lines()
590 .next()
591 .and_then(|line| serde_json::from_str(line).ok())
592 })
593 .unwrap_or_else(|| {
594 log::error!(
595 "failed to deserialize panic file {:?}",
596 panic_file_content
597 );
598 None
599 });
600
601 if let Some(panic) = panic {
602 let body = serde_json::to_string(&PanicRequest {
603 panic,
604 token: client::ZED_SECRET_CLIENT_TOKEN.into(),
605 })
606 .unwrap();
607
608 let request = Request::post(&panic_report_url)
609 .redirect_policy(isahc::config::RedirectPolicy::Follow)
610 .header("Content-Type", "application/json")
611 .body(body.into())?;
612 let response = http.send(request).await.context("error sending panic")?;
613 if !response.status().is_success() {
614 log::error!("Error uploading panic to server: {}", response.status());
615 }
616 }
617 }
618
619 // We've done what we can, delete the file
620 std::fs::remove_file(child_path)
621 .context("error removing panic")
622 .log_err();
623 }
624 Ok::<_, anyhow::Error>(())
625 })
626 .detach_and_log_err(cx);
627}
628
629async fn load_login_shell_environment() -> Result<()> {
630 let marker = "ZED_LOGIN_SHELL_START";
631 let shell = env::var("SHELL").context(
632 "SHELL environment variable is not assigned so we can't source login environment variables",
633 )?;
634 let output = Command::new(&shell)
635 .args(["-lic", &format!("echo {marker} && /usr/bin/env -0")])
636 .output()
637 .await
638 .context("failed to spawn login shell to source login environment variables")?;
639 if !output.status.success() {
640 Err(anyhow!("login shell exited with error"))?;
641 }
642
643 let stdout = String::from_utf8_lossy(&output.stdout);
644
645 if let Some(env_output_start) = stdout.find(marker) {
646 let env_output = &stdout[env_output_start + marker.len()..];
647 for line in env_output.split_terminator('\0') {
648 if let Some(separator_index) = line.find('=') {
649 let key = &line[..separator_index];
650 let value = &line[separator_index + 1..];
651 env::set_var(key, value);
652 }
653 }
654 log::info!(
655 "set environment variables from shell:{}, path:{}",
656 shell,
657 env::var("PATH").unwrap_or_default(),
658 );
659 }
660
661 Ok(())
662}
663
664fn stdout_is_a_pty() -> bool {
665 std::env::var(FORCE_CLI_MODE_ENV_VAR_NAME).ok().is_none() && std::io::stdout().is_terminal()
666}
667
668fn collect_url_args() -> Vec<String> {
669 env::args()
670 .skip(1)
671 .filter_map(|arg| match std::fs::canonicalize(Path::new(&arg)) {
672 Ok(path) => Some(format!("file://{}", path.to_string_lossy())),
673 Err(error) => {
674 if let Some(_) = parse_zed_link(&arg) {
675 Some(arg)
676 } else {
677 log::error!("error parsing path argument: {}", error);
678 None
679 }
680 }
681 })
682 .collect()
683}
684
685fn load_embedded_fonts(cx: &AppContext) {
686 let asset_source = cx.asset_source();
687 let font_paths = asset_source.list("fonts").unwrap();
688 let embedded_fonts = Mutex::new(Vec::new());
689 let executor = cx.background_executor();
690
691 executor.block(executor.scoped(|scope| {
692 for font_path in &font_paths {
693 if !font_path.ends_with(".ttf") {
694 continue;
695 }
696
697 scope.spawn(async {
698 let font_bytes = asset_source.load(font_path).unwrap().to_vec();
699 embedded_fonts.lock().push(Arc::from(font_bytes));
700 });
701 }
702 }));
703
704 cx.text_system()
705 .add_fonts(&embedded_fonts.into_inner())
706 .unwrap();
707}
708
709#[cfg(debug_assertions)]
710async fn watch_languages(fs: Arc<dyn fs::Fs>, languages: Arc<LanguageRegistry>) -> Option<()> {
711 use std::time::Duration;
712
713 let mut events = fs
714 .watch(
715 "crates/zed2/src/languages".as_ref(),
716 Duration::from_millis(100),
717 )
718 .await;
719 while (events.next().await).is_some() {
720 languages.reload();
721 }
722 Some(())
723}
724
725#[cfg(debug_assertions)]
726fn watch_file_types(fs: Arc<dyn fs::Fs>, cx: &mut AppContext) {
727 use std::time::Duration;
728
729 cx.spawn(|mut cx| async move {
730 let mut events = fs
731 .watch(
732 "assets/icons/file_icons/file_types.json".as_ref(),
733 Duration::from_millis(100),
734 )
735 .await;
736 while (events.next().await).is_some() {
737 cx.update(|cx| {
738 cx.update_global(|file_types, _| {
739 *file_types = project_panel::file_associations::FileAssociations::new(Assets);
740 });
741 })
742 .ok();
743 }
744 })
745 .detach()
746}
747
748#[cfg(not(debug_assertions))]
749async fn watch_languages(_: Arc<dyn fs::Fs>, _: Arc<LanguageRegistry>) -> Option<()> {
750 None
751}
752
753#[cfg(not(debug_assertions))]
754fn watch_file_types(_fs: Arc<dyn fs::Fs>, _cx: &mut AppContext) {}