copilot.rs

   1pub mod copilot_chat;
   2mod copilot_completion_provider;
   3pub mod copilot_responses;
   4pub mod request;
   5mod sign_in;
   6
   7use crate::sign_in::initiate_sign_in_within_workspace;
   8use ::fs::Fs;
   9use anyhow::{Context as _, Result, anyhow};
  10use collections::{HashMap, HashSet};
  11use command_palette_hooks::CommandPaletteFilter;
  12use futures::{Future, FutureExt, TryFutureExt, channel::oneshot, future::Shared};
  13use gpui::{
  14    App, AppContext as _, AsyncApp, Context, Entity, EntityId, EventEmitter, Global, Task,
  15    WeakEntity, actions,
  16};
  17use http_client::HttpClient;
  18use language::language_settings::CopilotSettings;
  19use language::{
  20    Anchor, Bias, Buffer, BufferSnapshot, Language, PointUtf16, ToPointUtf16,
  21    language_settings::{EditPredictionProvider, all_language_settings, language_settings},
  22    point_from_lsp, point_to_lsp,
  23};
  24use lsp::{LanguageServer, LanguageServerBinary, LanguageServerId, LanguageServerName};
  25use node_runtime::{NodeRuntime, VersionStrategy};
  26use parking_lot::Mutex;
  27use project::DisableAiSettings;
  28use request::StatusNotification;
  29use semver::Version;
  30use serde_json::json;
  31use settings::Settings;
  32use settings::SettingsStore;
  33use sign_in::{reinstall_and_sign_in_within_workspace, sign_out_within_workspace};
  34use std::collections::hash_map::Entry;
  35use std::{
  36    any::TypeId,
  37    env,
  38    ffi::OsString,
  39    mem,
  40    ops::Range,
  41    path::{Path, PathBuf},
  42    sync::Arc,
  43};
  44use sum_tree::Dimensions;
  45use util::rel_path::RelPath;
  46use util::{ResultExt, fs::remove_matching};
  47use workspace::Workspace;
  48
  49pub use crate::copilot_completion_provider::CopilotCompletionProvider;
  50pub use crate::sign_in::{CopilotCodeVerification, initiate_sign_in, reinstall_and_sign_in};
  51
  52actions!(
  53    copilot,
  54    [
  55        /// Requests a code completion suggestion from Copilot.
  56        Suggest,
  57        /// Cycles to the next Copilot suggestion.
  58        NextSuggestion,
  59        /// Cycles to the previous Copilot suggestion.
  60        PreviousSuggestion,
  61        /// Reinstalls the Copilot language server.
  62        Reinstall,
  63        /// Signs in to GitHub Copilot.
  64        SignIn,
  65        /// Signs out of GitHub Copilot.
  66        SignOut
  67    ]
  68);
  69
  70pub fn init(
  71    new_server_id: LanguageServerId,
  72    fs: Arc<dyn Fs>,
  73    http: Arc<dyn HttpClient>,
  74    node_runtime: NodeRuntime,
  75    cx: &mut App,
  76) {
  77    let language_settings = all_language_settings(None, cx);
  78    let configuration = copilot_chat::CopilotChatConfiguration {
  79        enterprise_uri: language_settings
  80            .edit_predictions
  81            .copilot
  82            .enterprise_uri
  83            .clone(),
  84    };
  85    copilot_chat::init(fs.clone(), http.clone(), configuration, cx);
  86
  87    let copilot = cx.new(move |cx| Copilot::start(new_server_id, fs, node_runtime, cx));
  88    Copilot::set_global(copilot.clone(), cx);
  89    cx.observe(&copilot, |copilot, cx| {
  90        copilot.update(cx, |copilot, cx| copilot.update_action_visibilities(cx));
  91    })
  92    .detach();
  93    cx.observe_global::<SettingsStore>(|cx| {
  94        if let Some(copilot) = Copilot::global(cx) {
  95            copilot.update(cx, |copilot, cx| copilot.update_action_visibilities(cx));
  96        }
  97    })
  98    .detach();
  99
 100    cx.observe_new(|workspace: &mut Workspace, _window, _cx| {
 101        workspace.register_action(|workspace, _: &SignIn, window, cx| {
 102            if let Some(copilot) = Copilot::global(cx) {
 103                let is_reinstall = false;
 104                initiate_sign_in_within_workspace(workspace, copilot, is_reinstall, window, cx);
 105            }
 106        });
 107        workspace.register_action(|workspace, _: &Reinstall, window, cx| {
 108            if let Some(copilot) = Copilot::global(cx) {
 109                reinstall_and_sign_in_within_workspace(workspace, copilot, window, cx);
 110            }
 111        });
 112        workspace.register_action(|workspace, _: &SignOut, _window, cx| {
 113            if let Some(copilot) = Copilot::global(cx) {
 114                sign_out_within_workspace(workspace, copilot, cx);
 115            }
 116        });
 117    })
 118    .detach();
 119}
 120
 121enum CopilotServer {
 122    Disabled,
 123    Starting { task: Shared<Task<()>> },
 124    Error(Arc<str>),
 125    Running(RunningCopilotServer),
 126}
 127
 128impl CopilotServer {
 129    fn as_authenticated(&mut self) -> Result<&mut RunningCopilotServer> {
 130        let server = self.as_running()?;
 131        anyhow::ensure!(
 132            matches!(server.sign_in_status, SignInStatus::Authorized),
 133            "must sign in before using copilot"
 134        );
 135        Ok(server)
 136    }
 137
 138    fn as_running(&mut self) -> Result<&mut RunningCopilotServer> {
 139        match self {
 140            CopilotServer::Starting { .. } => anyhow::bail!("copilot is still starting"),
 141            CopilotServer::Disabled => anyhow::bail!("copilot is disabled"),
 142            CopilotServer::Error(error) => {
 143                anyhow::bail!("copilot was not started because of an error: {error}")
 144            }
 145            CopilotServer::Running(server) => Ok(server),
 146        }
 147    }
 148}
 149
 150struct RunningCopilotServer {
 151    lsp: Arc<LanguageServer>,
 152    sign_in_status: SignInStatus,
 153    registered_buffers: HashMap<EntityId, RegisteredBuffer>,
 154}
 155
 156#[derive(Clone, Debug)]
 157enum SignInStatus {
 158    Authorized,
 159    Unauthorized,
 160    SigningIn {
 161        prompt: Option<request::PromptUserDeviceFlow>,
 162        task: Shared<Task<Result<(), Arc<anyhow::Error>>>>,
 163    },
 164    SignedOut {
 165        awaiting_signing_in: bool,
 166    },
 167}
 168
 169#[derive(Debug, Clone)]
 170pub enum Status {
 171    Starting {
 172        task: Shared<Task<()>>,
 173    },
 174    Error(Arc<str>),
 175    Disabled,
 176    SignedOut {
 177        awaiting_signing_in: bool,
 178    },
 179    SigningIn {
 180        prompt: Option<request::PromptUserDeviceFlow>,
 181    },
 182    Unauthorized,
 183    Authorized,
 184}
 185
 186impl Status {
 187    pub fn is_authorized(&self) -> bool {
 188        matches!(self, Status::Authorized)
 189    }
 190
 191    pub fn is_configured(&self) -> bool {
 192        matches!(
 193            self,
 194            Status::Starting { .. }
 195                | Status::Error(_)
 196                | Status::SigningIn { .. }
 197                | Status::Authorized
 198        )
 199    }
 200}
 201
 202struct RegisteredBuffer {
 203    uri: lsp::Uri,
 204    language_id: String,
 205    snapshot: BufferSnapshot,
 206    snapshot_version: i32,
 207    _subscriptions: [gpui::Subscription; 2],
 208    pending_buffer_change: Task<Option<()>>,
 209}
 210
 211impl RegisteredBuffer {
 212    fn report_changes(
 213        &mut self,
 214        buffer: &Entity<Buffer>,
 215        cx: &mut Context<Copilot>,
 216    ) -> oneshot::Receiver<(i32, BufferSnapshot)> {
 217        let (done_tx, done_rx) = oneshot::channel();
 218
 219        if buffer.read(cx).version() == self.snapshot.version {
 220            let _ = done_tx.send((self.snapshot_version, self.snapshot.clone()));
 221        } else {
 222            let buffer = buffer.downgrade();
 223            let id = buffer.entity_id();
 224            let prev_pending_change =
 225                mem::replace(&mut self.pending_buffer_change, Task::ready(None));
 226            self.pending_buffer_change = cx.spawn(async move |copilot, cx| {
 227                prev_pending_change.await;
 228
 229                let old_version = copilot
 230                    .update(cx, |copilot, _| {
 231                        let server = copilot.server.as_authenticated().log_err()?;
 232                        let buffer = server.registered_buffers.get_mut(&id)?;
 233                        Some(buffer.snapshot.version.clone())
 234                    })
 235                    .ok()??;
 236                let new_snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot()).ok()?;
 237
 238                let content_changes = cx
 239                    .background_spawn({
 240                        let new_snapshot = new_snapshot.clone();
 241                        async move {
 242                            new_snapshot
 243                                .edits_since::<Dimensions<PointUtf16, usize>>(&old_version)
 244                                .map(|edit| {
 245                                    let edit_start = edit.new.start.0;
 246                                    let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
 247                                    let new_text = new_snapshot
 248                                        .text_for_range(edit.new.start.1..edit.new.end.1)
 249                                        .collect();
 250                                    lsp::TextDocumentContentChangeEvent {
 251                                        range: Some(lsp::Range::new(
 252                                            point_to_lsp(edit_start),
 253                                            point_to_lsp(edit_end),
 254                                        )),
 255                                        range_length: None,
 256                                        text: new_text,
 257                                    }
 258                                })
 259                                .collect::<Vec<_>>()
 260                        }
 261                    })
 262                    .await;
 263
 264                copilot
 265                    .update(cx, |copilot, _| {
 266                        let server = copilot.server.as_authenticated().log_err()?;
 267                        let buffer = server.registered_buffers.get_mut(&id)?;
 268                        if !content_changes.is_empty() {
 269                            buffer.snapshot_version += 1;
 270                            buffer.snapshot = new_snapshot;
 271                            server
 272                                .lsp
 273                                .notify::<lsp::notification::DidChangeTextDocument>(
 274                                    lsp::DidChangeTextDocumentParams {
 275                                        text_document: lsp::VersionedTextDocumentIdentifier::new(
 276                                            buffer.uri.clone(),
 277                                            buffer.snapshot_version,
 278                                        ),
 279                                        content_changes,
 280                                    },
 281                                )
 282                                .ok();
 283                        }
 284                        let _ = done_tx.send((buffer.snapshot_version, buffer.snapshot.clone()));
 285                        Some(())
 286                    })
 287                    .ok()?;
 288
 289                Some(())
 290            });
 291        }
 292
 293        done_rx
 294    }
 295}
 296
 297#[derive(Debug)]
 298pub struct Completion {
 299    pub uuid: String,
 300    pub range: Range<Anchor>,
 301    pub text: String,
 302}
 303
 304pub struct Copilot {
 305    fs: Arc<dyn Fs>,
 306    node_runtime: NodeRuntime,
 307    server: CopilotServer,
 308    buffers: HashSet<WeakEntity<Buffer>>,
 309    server_id: LanguageServerId,
 310    _subscription: gpui::Subscription,
 311}
 312
 313pub enum Event {
 314    CopilotLanguageServerStarted,
 315    CopilotAuthSignedIn,
 316    CopilotAuthSignedOut,
 317}
 318
 319impl EventEmitter<Event> for Copilot {}
 320
 321struct GlobalCopilot(Entity<Copilot>);
 322
 323impl Global for GlobalCopilot {}
 324
 325impl Copilot {
 326    pub fn global(cx: &App) -> Option<Entity<Self>> {
 327        cx.try_global::<GlobalCopilot>()
 328            .map(|model| model.0.clone())
 329    }
 330
 331    pub fn set_global(copilot: Entity<Self>, cx: &mut App) {
 332        cx.set_global(GlobalCopilot(copilot));
 333    }
 334
 335    fn start(
 336        new_server_id: LanguageServerId,
 337        fs: Arc<dyn Fs>,
 338        node_runtime: NodeRuntime,
 339        cx: &mut Context<Self>,
 340    ) -> Self {
 341        let mut this = Self {
 342            server_id: new_server_id,
 343            fs,
 344            node_runtime,
 345            server: CopilotServer::Disabled,
 346            buffers: Default::default(),
 347            _subscription: cx.on_app_quit(Self::shutdown_language_server),
 348        };
 349        this.start_copilot(true, false, cx);
 350        cx.observe_global::<SettingsStore>(move |this, cx| {
 351            this.start_copilot(true, false, cx);
 352            if let Ok(server) = this.server.as_running() {
 353                notify_did_change_config_to_server(&server.lsp, cx)
 354                    .context("copilot setting change: did change configuration")
 355                    .log_err();
 356            }
 357        })
 358        .detach();
 359        this
 360    }
 361
 362    fn shutdown_language_server(
 363        &mut self,
 364        _cx: &mut Context<Self>,
 365    ) -> impl Future<Output = ()> + use<> {
 366        let shutdown = match mem::replace(&mut self.server, CopilotServer::Disabled) {
 367            CopilotServer::Running(server) => Some(Box::pin(async move { server.lsp.shutdown() })),
 368            _ => None,
 369        };
 370
 371        async move {
 372            if let Some(shutdown) = shutdown {
 373                shutdown.await;
 374            }
 375        }
 376    }
 377
 378    fn start_copilot(
 379        &mut self,
 380        check_edit_prediction_provider: bool,
 381        awaiting_sign_in_after_start: bool,
 382        cx: &mut Context<Self>,
 383    ) {
 384        if !matches!(self.server, CopilotServer::Disabled) {
 385            return;
 386        }
 387        let language_settings = all_language_settings(None, cx);
 388        if check_edit_prediction_provider
 389            && language_settings.edit_predictions.provider != EditPredictionProvider::Copilot
 390        {
 391            return;
 392        }
 393        let server_id = self.server_id;
 394        let fs = self.fs.clone();
 395        let node_runtime = self.node_runtime.clone();
 396        let env = self.build_env(&language_settings.edit_predictions.copilot);
 397        let start_task = cx
 398            .spawn(async move |this, cx| {
 399                Self::start_language_server(
 400                    server_id,
 401                    fs,
 402                    node_runtime,
 403                    env,
 404                    this,
 405                    awaiting_sign_in_after_start,
 406                    cx,
 407                )
 408                .await
 409            })
 410            .shared();
 411        self.server = CopilotServer::Starting { task: start_task };
 412        cx.notify();
 413    }
 414
 415    fn build_env(&self, copilot_settings: &CopilotSettings) -> Option<HashMap<String, String>> {
 416        let proxy_url = copilot_settings.proxy.clone()?;
 417        let no_verify = copilot_settings.proxy_no_verify;
 418        let http_or_https_proxy = if proxy_url.starts_with("http:") {
 419            Some("HTTP_PROXY")
 420        } else if proxy_url.starts_with("https:") {
 421            Some("HTTPS_PROXY")
 422        } else {
 423            log::error!(
 424                "Unsupported protocol scheme for language server proxy (must be http or https)"
 425            );
 426            None
 427        };
 428
 429        let mut env = HashMap::default();
 430
 431        if let Some(proxy_type) = http_or_https_proxy {
 432            env.insert(proxy_type.to_string(), proxy_url);
 433            if let Some(true) = no_verify {
 434                env.insert("NODE_TLS_REJECT_UNAUTHORIZED".to_string(), "0".to_string());
 435            };
 436        }
 437
 438        if let Ok(oauth_token) = env::var(copilot_chat::COPILOT_OAUTH_ENV_VAR) {
 439            env.insert(copilot_chat::COPILOT_OAUTH_ENV_VAR.to_string(), oauth_token);
 440        }
 441
 442        if env.is_empty() { None } else { Some(env) }
 443    }
 444
 445    #[cfg(any(test, feature = "test-support"))]
 446    pub fn fake(cx: &mut gpui::TestAppContext) -> (Entity<Self>, lsp::FakeLanguageServer) {
 447        use fs::FakeFs;
 448        use lsp::FakeLanguageServer;
 449        use node_runtime::NodeRuntime;
 450
 451        let (server, fake_server) = FakeLanguageServer::new(
 452            LanguageServerId(0),
 453            LanguageServerBinary {
 454                path: "path/to/copilot".into(),
 455                arguments: vec![],
 456                env: None,
 457            },
 458            "copilot".into(),
 459            Default::default(),
 460            &mut cx.to_async(),
 461        );
 462        let node_runtime = NodeRuntime::unavailable();
 463        let this = cx.new(|cx| Self {
 464            server_id: LanguageServerId(0),
 465            fs: FakeFs::new(cx.background_executor().clone()),
 466            node_runtime,
 467            server: CopilotServer::Running(RunningCopilotServer {
 468                lsp: Arc::new(server),
 469                sign_in_status: SignInStatus::Authorized,
 470                registered_buffers: Default::default(),
 471            }),
 472            _subscription: cx.on_app_quit(Self::shutdown_language_server),
 473            buffers: Default::default(),
 474        });
 475        (this, fake_server)
 476    }
 477
 478    async fn start_language_server(
 479        new_server_id: LanguageServerId,
 480        fs: Arc<dyn Fs>,
 481        node_runtime: NodeRuntime,
 482        env: Option<HashMap<String, String>>,
 483        this: WeakEntity<Self>,
 484        awaiting_sign_in_after_start: bool,
 485        cx: &mut AsyncApp,
 486    ) {
 487        let start_language_server = async {
 488            let server_path = get_copilot_lsp(fs, node_runtime.clone()).await?;
 489            let node_path = node_runtime.binary_path().await?;
 490            ensure_node_version_for_copilot(&node_path).await?;
 491
 492            let arguments: Vec<OsString> = vec![server_path.into(), "--stdio".into()];
 493            let binary = LanguageServerBinary {
 494                path: node_path,
 495                arguments,
 496                env,
 497            };
 498
 499            let root_path = if cfg!(target_os = "windows") {
 500                Path::new("C:/")
 501            } else {
 502                Path::new("/")
 503            };
 504
 505            let server_name = LanguageServerName("copilot".into());
 506            let server = LanguageServer::new(
 507                Arc::new(Mutex::new(None)),
 508                new_server_id,
 509                server_name,
 510                binary,
 511                root_path,
 512                None,
 513                Default::default(),
 514                cx,
 515            )?;
 516
 517            server
 518                .on_notification::<StatusNotification, _>(|_, _| { /* Silence the notification */ })
 519                .detach();
 520
 521            let configuration = lsp::DidChangeConfigurationParams {
 522                settings: Default::default(),
 523            };
 524
 525            let editor_info = request::SetEditorInfoParams {
 526                editor_info: request::EditorInfo {
 527                    name: "zed".into(),
 528                    version: env!("CARGO_PKG_VERSION").into(),
 529                },
 530                editor_plugin_info: request::EditorPluginInfo {
 531                    name: "zed-copilot".into(),
 532                    version: "0.0.1".into(),
 533                },
 534            };
 535            let editor_info_json = serde_json::to_value(&editor_info)?;
 536
 537            let server = cx
 538                .update(|cx| {
 539                    let mut params = server.default_initialize_params(false, cx);
 540                    params.initialization_options = Some(editor_info_json);
 541                    server.initialize(params, configuration.into(), cx)
 542                })?
 543                .await?;
 544
 545            this.update(cx, |_, cx| notify_did_change_config_to_server(&server, cx))?
 546                .context("copilot: did change configuration")?;
 547
 548            let status = server
 549                .request::<request::CheckStatus>(request::CheckStatusParams {
 550                    local_checks_only: false,
 551                })
 552                .await
 553                .into_response()
 554                .context("copilot: check status")?;
 555
 556            anyhow::Ok((server, status))
 557        };
 558
 559        let server = start_language_server.await;
 560        this.update(cx, |this, cx| {
 561            cx.notify();
 562            match server {
 563                Ok((server, status)) => {
 564                    this.server = CopilotServer::Running(RunningCopilotServer {
 565                        lsp: server,
 566                        sign_in_status: SignInStatus::SignedOut {
 567                            awaiting_signing_in: awaiting_sign_in_after_start,
 568                        },
 569                        registered_buffers: Default::default(),
 570                    });
 571                    cx.emit(Event::CopilotLanguageServerStarted);
 572                    this.update_sign_in_status(status, cx);
 573                }
 574                Err(error) => {
 575                    this.server = CopilotServer::Error(error.to_string().into());
 576                    cx.notify()
 577                }
 578            }
 579        })
 580        .ok();
 581    }
 582
 583    pub(crate) fn sign_in(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
 584        if let CopilotServer::Running(server) = &mut self.server {
 585            let task = match &server.sign_in_status {
 586                SignInStatus::Authorized => Task::ready(Ok(())).shared(),
 587                SignInStatus::SigningIn { task, .. } => {
 588                    cx.notify();
 589                    task.clone()
 590                }
 591                SignInStatus::SignedOut { .. } | SignInStatus::Unauthorized => {
 592                    let lsp = server.lsp.clone();
 593                    let task = cx
 594                        .spawn(async move |this, cx| {
 595                            let sign_in = async {
 596                                let sign_in = lsp
 597                                    .request::<request::SignInInitiate>(
 598                                        request::SignInInitiateParams {},
 599                                    )
 600                                    .await
 601                                    .into_response()
 602                                    .context("copilot sign-in")?;
 603                                match sign_in {
 604                                    request::SignInInitiateResult::AlreadySignedIn { user } => {
 605                                        Ok(request::SignInStatus::Ok { user: Some(user) })
 606                                    }
 607                                    request::SignInInitiateResult::PromptUserDeviceFlow(flow) => {
 608                                        this.update(cx, |this, cx| {
 609                                            if let CopilotServer::Running(RunningCopilotServer {
 610                                                sign_in_status: status,
 611                                                ..
 612                                            }) = &mut this.server
 613                                                && let SignInStatus::SigningIn {
 614                                                    prompt: prompt_flow,
 615                                                    ..
 616                                                } = status
 617                                            {
 618                                                *prompt_flow = Some(flow.clone());
 619                                                cx.notify();
 620                                            }
 621                                        })?;
 622                                        let response = lsp
 623                                            .request::<request::SignInConfirm>(
 624                                                request::SignInConfirmParams {
 625                                                    user_code: flow.user_code,
 626                                                },
 627                                            )
 628                                            .await
 629                                            .into_response()
 630                                            .context("copilot: sign in confirm")?;
 631                                        Ok(response)
 632                                    }
 633                                }
 634                            };
 635
 636                            let sign_in = sign_in.await;
 637                            this.update(cx, |this, cx| match sign_in {
 638                                Ok(status) => {
 639                                    this.update_sign_in_status(status, cx);
 640                                    Ok(())
 641                                }
 642                                Err(error) => {
 643                                    this.update_sign_in_status(
 644                                        request::SignInStatus::NotSignedIn,
 645                                        cx,
 646                                    );
 647                                    Err(Arc::new(error))
 648                                }
 649                            })?
 650                        })
 651                        .shared();
 652                    server.sign_in_status = SignInStatus::SigningIn {
 653                        prompt: None,
 654                        task: task.clone(),
 655                    };
 656                    cx.notify();
 657                    task
 658                }
 659            };
 660
 661            cx.background_spawn(task.map_err(|err| anyhow!("{err:?}")))
 662        } else {
 663            // If we're downloading, wait until download is finished
 664            // If we're in a stuck state, display to the user
 665            Task::ready(Err(anyhow!("copilot hasn't started yet")))
 666        }
 667    }
 668
 669    pub(crate) fn sign_out(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
 670        self.update_sign_in_status(request::SignInStatus::NotSignedIn, cx);
 671        match &self.server {
 672            CopilotServer::Running(RunningCopilotServer { lsp: server, .. }) => {
 673                let server = server.clone();
 674                cx.background_spawn(async move {
 675                    server
 676                        .request::<request::SignOut>(request::SignOutParams {})
 677                        .await
 678                        .into_response()
 679                        .context("copilot: sign in confirm")?;
 680                    anyhow::Ok(())
 681                })
 682            }
 683            CopilotServer::Disabled => cx.background_spawn(async {
 684                clear_copilot_config_dir().await;
 685                anyhow::Ok(())
 686            }),
 687            _ => Task::ready(Err(anyhow!("copilot hasn't started yet"))),
 688        }
 689    }
 690
 691    pub(crate) fn reinstall(&mut self, cx: &mut Context<Self>) -> Shared<Task<()>> {
 692        let language_settings = all_language_settings(None, cx);
 693        let env = self.build_env(&language_settings.edit_predictions.copilot);
 694        let start_task = cx
 695            .spawn({
 696                let fs = self.fs.clone();
 697                let node_runtime = self.node_runtime.clone();
 698                let server_id = self.server_id;
 699                async move |this, cx| {
 700                    clear_copilot_dir().await;
 701                    Self::start_language_server(server_id, fs, node_runtime, env, this, false, cx)
 702                        .await
 703                }
 704            })
 705            .shared();
 706
 707        self.server = CopilotServer::Starting {
 708            task: start_task.clone(),
 709        };
 710
 711        cx.notify();
 712
 713        start_task
 714    }
 715
 716    pub fn language_server(&self) -> Option<&Arc<LanguageServer>> {
 717        if let CopilotServer::Running(server) = &self.server {
 718            Some(&server.lsp)
 719        } else {
 720            None
 721        }
 722    }
 723
 724    pub fn register_buffer(&mut self, buffer: &Entity<Buffer>, cx: &mut Context<Self>) {
 725        let weak_buffer = buffer.downgrade();
 726        self.buffers.insert(weak_buffer.clone());
 727
 728        if let CopilotServer::Running(RunningCopilotServer {
 729            lsp: server,
 730            sign_in_status: status,
 731            registered_buffers,
 732            ..
 733        }) = &mut self.server
 734        {
 735            if !matches!(status, SignInStatus::Authorized) {
 736                return;
 737            }
 738
 739            let entry = registered_buffers.entry(buffer.entity_id());
 740            if let Entry::Vacant(e) = entry {
 741                let Ok(uri) = uri_for_buffer(buffer, cx) else {
 742                    return;
 743                };
 744                let language_id = id_for_language(buffer.read(cx).language());
 745                let snapshot = buffer.read(cx).snapshot();
 746                server
 747                    .notify::<lsp::notification::DidOpenTextDocument>(
 748                        lsp::DidOpenTextDocumentParams {
 749                            text_document: lsp::TextDocumentItem {
 750                                uri: uri.clone(),
 751                                language_id: language_id.clone(),
 752                                version: 0,
 753                                text: snapshot.text(),
 754                            },
 755                        },
 756                    )
 757                    .ok();
 758
 759                e.insert(RegisteredBuffer {
 760                    uri,
 761                    language_id,
 762                    snapshot,
 763                    snapshot_version: 0,
 764                    pending_buffer_change: Task::ready(Some(())),
 765                    _subscriptions: [
 766                        cx.subscribe(buffer, |this, buffer, event, cx| {
 767                            this.handle_buffer_event(buffer, event, cx).log_err();
 768                        }),
 769                        cx.observe_release(buffer, move |this, _buffer, _cx| {
 770                            this.buffers.remove(&weak_buffer);
 771                            this.unregister_buffer(&weak_buffer);
 772                        }),
 773                    ],
 774                });
 775            }
 776        }
 777    }
 778
 779    fn handle_buffer_event(
 780        &mut self,
 781        buffer: Entity<Buffer>,
 782        event: &language::BufferEvent,
 783        cx: &mut Context<Self>,
 784    ) -> Result<()> {
 785        if let Ok(server) = self.server.as_running()
 786            && let Some(registered_buffer) = server.registered_buffers.get_mut(&buffer.entity_id())
 787        {
 788            match event {
 789                language::BufferEvent::Edited => {
 790                    drop(registered_buffer.report_changes(&buffer, cx));
 791                }
 792                language::BufferEvent::Saved => {
 793                    server
 794                        .lsp
 795                        .notify::<lsp::notification::DidSaveTextDocument>(
 796                            lsp::DidSaveTextDocumentParams {
 797                                text_document: lsp::TextDocumentIdentifier::new(
 798                                    registered_buffer.uri.clone(),
 799                                ),
 800                                text: None,
 801                            },
 802                        )
 803                        .ok();
 804                }
 805                language::BufferEvent::FileHandleChanged
 806                | language::BufferEvent::LanguageChanged => {
 807                    let new_language_id = id_for_language(buffer.read(cx).language());
 808                    let Ok(new_uri) = uri_for_buffer(&buffer, cx) else {
 809                        return Ok(());
 810                    };
 811                    if new_uri != registered_buffer.uri
 812                        || new_language_id != registered_buffer.language_id
 813                    {
 814                        let old_uri = mem::replace(&mut registered_buffer.uri, new_uri);
 815                        registered_buffer.language_id = new_language_id;
 816                        server
 817                            .lsp
 818                            .notify::<lsp::notification::DidCloseTextDocument>(
 819                                lsp::DidCloseTextDocumentParams {
 820                                    text_document: lsp::TextDocumentIdentifier::new(old_uri),
 821                                },
 822                            )
 823                            .ok();
 824                        server
 825                            .lsp
 826                            .notify::<lsp::notification::DidOpenTextDocument>(
 827                                lsp::DidOpenTextDocumentParams {
 828                                    text_document: lsp::TextDocumentItem::new(
 829                                        registered_buffer.uri.clone(),
 830                                        registered_buffer.language_id.clone(),
 831                                        registered_buffer.snapshot_version,
 832                                        registered_buffer.snapshot.text(),
 833                                    ),
 834                                },
 835                            )
 836                            .ok();
 837                    }
 838                }
 839                _ => {}
 840            }
 841        }
 842
 843        Ok(())
 844    }
 845
 846    fn unregister_buffer(&mut self, buffer: &WeakEntity<Buffer>) {
 847        if let Ok(server) = self.server.as_running()
 848            && let Some(buffer) = server.registered_buffers.remove(&buffer.entity_id())
 849        {
 850            server
 851                .lsp
 852                .notify::<lsp::notification::DidCloseTextDocument>(
 853                    lsp::DidCloseTextDocumentParams {
 854                        text_document: lsp::TextDocumentIdentifier::new(buffer.uri),
 855                    },
 856                )
 857                .ok();
 858        }
 859    }
 860
 861    pub fn completions<T>(
 862        &mut self,
 863        buffer: &Entity<Buffer>,
 864        position: T,
 865        cx: &mut Context<Self>,
 866    ) -> Task<Result<Vec<Completion>>>
 867    where
 868        T: ToPointUtf16,
 869    {
 870        self.request_completions::<request::GetCompletions, _>(buffer, position, cx)
 871    }
 872
 873    pub fn completions_cycling<T>(
 874        &mut self,
 875        buffer: &Entity<Buffer>,
 876        position: T,
 877        cx: &mut Context<Self>,
 878    ) -> Task<Result<Vec<Completion>>>
 879    where
 880        T: ToPointUtf16,
 881    {
 882        self.request_completions::<request::GetCompletionsCycling, _>(buffer, position, cx)
 883    }
 884
 885    pub fn accept_completion(
 886        &mut self,
 887        completion: &Completion,
 888        cx: &mut Context<Self>,
 889    ) -> Task<Result<()>> {
 890        let server = match self.server.as_authenticated() {
 891            Ok(server) => server,
 892            Err(error) => return Task::ready(Err(error)),
 893        };
 894        let request =
 895            server
 896                .lsp
 897                .request::<request::NotifyAccepted>(request::NotifyAcceptedParams {
 898                    uuid: completion.uuid.clone(),
 899                });
 900        cx.background_spawn(async move {
 901            request
 902                .await
 903                .into_response()
 904                .context("copilot: notify accepted")?;
 905            Ok(())
 906        })
 907    }
 908
 909    pub fn discard_completions(
 910        &mut self,
 911        completions: &[Completion],
 912        cx: &mut Context<Self>,
 913    ) -> Task<Result<()>> {
 914        let server = match self.server.as_authenticated() {
 915            Ok(server) => server,
 916            Err(_) => return Task::ready(Ok(())),
 917        };
 918        let request =
 919            server
 920                .lsp
 921                .request::<request::NotifyRejected>(request::NotifyRejectedParams {
 922                    uuids: completions
 923                        .iter()
 924                        .map(|completion| completion.uuid.clone())
 925                        .collect(),
 926                });
 927        cx.background_spawn(async move {
 928            request
 929                .await
 930                .into_response()
 931                .context("copilot: notify rejected")?;
 932            Ok(())
 933        })
 934    }
 935
 936    fn request_completions<R, T>(
 937        &mut self,
 938        buffer: &Entity<Buffer>,
 939        position: T,
 940        cx: &mut Context<Self>,
 941    ) -> Task<Result<Vec<Completion>>>
 942    where
 943        R: 'static
 944            + lsp::request::Request<
 945                Params = request::GetCompletionsParams,
 946                Result = request::GetCompletionsResult,
 947            >,
 948        T: ToPointUtf16,
 949    {
 950        self.register_buffer(buffer, cx);
 951
 952        let server = match self.server.as_authenticated() {
 953            Ok(server) => server,
 954            Err(error) => return Task::ready(Err(error)),
 955        };
 956        let lsp = server.lsp.clone();
 957        let registered_buffer = server
 958            .registered_buffers
 959            .get_mut(&buffer.entity_id())
 960            .unwrap();
 961        let snapshot = registered_buffer.report_changes(buffer, cx);
 962        let buffer = buffer.read(cx);
 963        let uri = registered_buffer.uri.clone();
 964        let position = position.to_point_utf16(buffer);
 965        let settings = language_settings(
 966            buffer.language_at(position).map(|l| l.name()),
 967            buffer.file(),
 968            cx,
 969        );
 970        let tab_size = settings.tab_size;
 971        let hard_tabs = settings.hard_tabs;
 972        let relative_path = buffer
 973            .file()
 974            .map_or(RelPath::empty().into(), |file| file.path().clone());
 975
 976        cx.background_spawn(async move {
 977            let (version, snapshot) = snapshot.await?;
 978            let result = lsp
 979                .request::<R>(request::GetCompletionsParams {
 980                    doc: request::GetCompletionsDocument {
 981                        uri,
 982                        tab_size: tab_size.into(),
 983                        indent_size: 1,
 984                        insert_spaces: !hard_tabs,
 985                        relative_path: relative_path.to_proto(),
 986                        position: point_to_lsp(position),
 987                        version: version.try_into().unwrap(),
 988                    },
 989                })
 990                .await
 991                .into_response()
 992                .context("copilot: get completions")?;
 993            let completions = result
 994                .completions
 995                .into_iter()
 996                .map(|completion| {
 997                    let start = snapshot
 998                        .clip_point_utf16(point_from_lsp(completion.range.start), Bias::Left);
 999                    let end =
1000                        snapshot.clip_point_utf16(point_from_lsp(completion.range.end), Bias::Left);
1001                    Completion {
1002                        uuid: completion.uuid,
1003                        range: snapshot.anchor_before(start)..snapshot.anchor_after(end),
1004                        text: completion.text,
1005                    }
1006                })
1007                .collect();
1008            anyhow::Ok(completions)
1009        })
1010    }
1011
1012    pub fn status(&self) -> Status {
1013        match &self.server {
1014            CopilotServer::Starting { task } => Status::Starting { task: task.clone() },
1015            CopilotServer::Disabled => Status::Disabled,
1016            CopilotServer::Error(error) => Status::Error(error.clone()),
1017            CopilotServer::Running(RunningCopilotServer { sign_in_status, .. }) => {
1018                match sign_in_status {
1019                    SignInStatus::Authorized => Status::Authorized,
1020                    SignInStatus::Unauthorized => Status::Unauthorized,
1021                    SignInStatus::SigningIn { prompt, .. } => Status::SigningIn {
1022                        prompt: prompt.clone(),
1023                    },
1024                    SignInStatus::SignedOut {
1025                        awaiting_signing_in,
1026                    } => Status::SignedOut {
1027                        awaiting_signing_in: *awaiting_signing_in,
1028                    },
1029                }
1030            }
1031        }
1032    }
1033
1034    fn update_sign_in_status(&mut self, lsp_status: request::SignInStatus, cx: &mut Context<Self>) {
1035        self.buffers.retain(|buffer| buffer.is_upgradable());
1036
1037        if let Ok(server) = self.server.as_running() {
1038            match lsp_status {
1039                request::SignInStatus::Ok { user: Some(_) }
1040                | request::SignInStatus::MaybeOk { .. }
1041                | request::SignInStatus::AlreadySignedIn { .. } => {
1042                    server.sign_in_status = SignInStatus::Authorized;
1043                    cx.emit(Event::CopilotAuthSignedIn);
1044                    for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
1045                        if let Some(buffer) = buffer.upgrade() {
1046                            self.register_buffer(&buffer, cx);
1047                        }
1048                    }
1049                }
1050                request::SignInStatus::NotAuthorized { .. } => {
1051                    server.sign_in_status = SignInStatus::Unauthorized;
1052                    for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
1053                        self.unregister_buffer(&buffer);
1054                    }
1055                }
1056                request::SignInStatus::Ok { user: None } | request::SignInStatus::NotSignedIn => {
1057                    if !matches!(server.sign_in_status, SignInStatus::SignedOut { .. }) {
1058                        server.sign_in_status = SignInStatus::SignedOut {
1059                            awaiting_signing_in: false,
1060                        };
1061                    }
1062                    cx.emit(Event::CopilotAuthSignedOut);
1063                    for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
1064                        self.unregister_buffer(&buffer);
1065                    }
1066                }
1067            }
1068
1069            cx.notify();
1070        }
1071    }
1072
1073    fn update_action_visibilities(&self, cx: &mut App) {
1074        let signed_in_actions = [
1075            TypeId::of::<Suggest>(),
1076            TypeId::of::<NextSuggestion>(),
1077            TypeId::of::<PreviousSuggestion>(),
1078            TypeId::of::<Reinstall>(),
1079        ];
1080        let auth_actions = [TypeId::of::<SignOut>()];
1081        let no_auth_actions = [TypeId::of::<SignIn>()];
1082        let status = self.status();
1083
1084        let is_ai_disabled = DisableAiSettings::get_global(cx).disable_ai;
1085        let filter = CommandPaletteFilter::global_mut(cx);
1086
1087        if is_ai_disabled {
1088            filter.hide_action_types(&signed_in_actions);
1089            filter.hide_action_types(&auth_actions);
1090            filter.hide_action_types(&no_auth_actions);
1091        } else {
1092            match status {
1093                Status::Disabled => {
1094                    filter.hide_action_types(&signed_in_actions);
1095                    filter.hide_action_types(&auth_actions);
1096                    filter.hide_action_types(&no_auth_actions);
1097                }
1098                Status::Authorized => {
1099                    filter.hide_action_types(&no_auth_actions);
1100                    filter.show_action_types(signed_in_actions.iter().chain(&auth_actions));
1101                }
1102                _ => {
1103                    filter.hide_action_types(&signed_in_actions);
1104                    filter.hide_action_types(&auth_actions);
1105                    filter.show_action_types(&no_auth_actions);
1106                }
1107            }
1108        }
1109    }
1110}
1111
1112fn id_for_language(language: Option<&Arc<Language>>) -> String {
1113    language
1114        .map(|language| language.lsp_id())
1115        .unwrap_or_else(|| "plaintext".to_string())
1116}
1117
1118fn uri_for_buffer(buffer: &Entity<Buffer>, cx: &App) -> Result<lsp::Uri, ()> {
1119    if let Some(file) = buffer.read(cx).file().and_then(|file| file.as_local()) {
1120        lsp::Uri::from_file_path(file.abs_path(cx))
1121    } else {
1122        format!("buffer://{}", buffer.entity_id())
1123            .parse()
1124            .map_err(|_| ())
1125    }
1126}
1127
1128fn notify_did_change_config_to_server(
1129    server: &Arc<LanguageServer>,
1130    cx: &mut Context<Copilot>,
1131) -> std::result::Result<(), anyhow::Error> {
1132    let copilot_settings = all_language_settings(None, cx)
1133        .edit_predictions
1134        .copilot
1135        .clone();
1136
1137    if let Some(copilot_chat) = copilot_chat::CopilotChat::global(cx) {
1138        copilot_chat.update(cx, |chat, cx| {
1139            chat.set_configuration(
1140                copilot_chat::CopilotChatConfiguration {
1141                    enterprise_uri: copilot_settings.enterprise_uri.clone(),
1142                },
1143                cx,
1144            );
1145        });
1146    }
1147
1148    let settings = json!({
1149        "http": {
1150            "proxy": copilot_settings.proxy,
1151            "proxyStrictSSL": !copilot_settings.proxy_no_verify.unwrap_or(false)
1152        },
1153        "github-enterprise": {
1154            "uri": copilot_settings.enterprise_uri
1155        }
1156    });
1157
1158    server
1159        .notify::<lsp::notification::DidChangeConfiguration>(lsp::DidChangeConfigurationParams {
1160            settings,
1161        })
1162        .ok();
1163    Ok(())
1164}
1165
1166async fn clear_copilot_dir() {
1167    remove_matching(paths::copilot_dir(), |_| true).await
1168}
1169
1170async fn clear_copilot_config_dir() {
1171    remove_matching(copilot_chat::copilot_chat_config_dir(), |_| true).await
1172}
1173
1174async fn ensure_node_version_for_copilot(node_path: &Path) -> anyhow::Result<()> {
1175    const MIN_COPILOT_NODE_VERSION: Version = Version::new(20, 8, 0);
1176
1177    log::info!("Checking Node.js version for Copilot at: {:?}", node_path);
1178
1179    let output = util::command::new_smol_command(node_path)
1180        .arg("--version")
1181        .output()
1182        .await
1183        .with_context(|| format!("checking Node.js version at {:?}", node_path))?;
1184
1185    if !output.status.success() {
1186        anyhow::bail!(
1187            "failed to run node --version for Copilot. stdout: {}, stderr: {}",
1188            String::from_utf8_lossy(&output.stdout),
1189            String::from_utf8_lossy(&output.stderr),
1190        );
1191    }
1192
1193    let version_str = String::from_utf8_lossy(&output.stdout);
1194    let version = Version::parse(version_str.trim().trim_start_matches('v'))
1195        .with_context(|| format!("parsing Node.js version from '{}'", version_str.trim()))?;
1196
1197    if version < MIN_COPILOT_NODE_VERSION {
1198        anyhow::bail!(
1199            "GitHub Copilot language server requires Node.js {MIN_COPILOT_NODE_VERSION} or later, but found {version}. \
1200            Please update your Node.js version or configure a different Node.js path in settings."
1201        );
1202    }
1203
1204    log::info!(
1205        "Node.js version {} meets Copilot requirements (>= {})",
1206        version,
1207        MIN_COPILOT_NODE_VERSION
1208    );
1209    Ok(())
1210}
1211
1212async fn get_copilot_lsp(fs: Arc<dyn Fs>, node_runtime: NodeRuntime) -> anyhow::Result<PathBuf> {
1213    const PACKAGE_NAME: &str = "@github/copilot-language-server";
1214    const SERVER_PATH: &str =
1215        "node_modules/@github/copilot-language-server/dist/language-server.js";
1216
1217    let latest_version = node_runtime
1218        .npm_package_latest_version(PACKAGE_NAME)
1219        .await?;
1220    let server_path = paths::copilot_dir().join(SERVER_PATH);
1221
1222    fs.create_dir(paths::copilot_dir()).await?;
1223
1224    let should_install = node_runtime
1225        .should_install_npm_package(
1226            PACKAGE_NAME,
1227            &server_path,
1228            paths::copilot_dir(),
1229            VersionStrategy::Latest(&latest_version),
1230        )
1231        .await;
1232    if should_install {
1233        node_runtime
1234            .npm_install_packages(paths::copilot_dir(), &[(PACKAGE_NAME, &latest_version)])
1235            .await?;
1236    }
1237
1238    Ok(server_path)
1239}
1240
1241#[cfg(test)]
1242mod tests {
1243    use super::*;
1244    use gpui::TestAppContext;
1245    use util::{path, paths::PathStyle, rel_path::rel_path};
1246
1247    #[gpui::test(iterations = 10)]
1248    async fn test_buffer_management(cx: &mut TestAppContext) {
1249        let (copilot, mut lsp) = Copilot::fake(cx);
1250
1251        let buffer_1 = cx.new(|cx| Buffer::local("Hello", cx));
1252        let buffer_1_uri: lsp::Uri = format!("buffer://{}", buffer_1.entity_id().as_u64())
1253            .parse()
1254            .unwrap();
1255        copilot.update(cx, |copilot, cx| copilot.register_buffer(&buffer_1, cx));
1256        assert_eq!(
1257            lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
1258                .await,
1259            lsp::DidOpenTextDocumentParams {
1260                text_document: lsp::TextDocumentItem::new(
1261                    buffer_1_uri.clone(),
1262                    "plaintext".into(),
1263                    0,
1264                    "Hello".into()
1265                ),
1266            }
1267        );
1268
1269        let buffer_2 = cx.new(|cx| Buffer::local("Goodbye", cx));
1270        let buffer_2_uri: lsp::Uri = format!("buffer://{}", buffer_2.entity_id().as_u64())
1271            .parse()
1272            .unwrap();
1273        copilot.update(cx, |copilot, cx| copilot.register_buffer(&buffer_2, cx));
1274        assert_eq!(
1275            lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
1276                .await,
1277            lsp::DidOpenTextDocumentParams {
1278                text_document: lsp::TextDocumentItem::new(
1279                    buffer_2_uri.clone(),
1280                    "plaintext".into(),
1281                    0,
1282                    "Goodbye".into()
1283                ),
1284            }
1285        );
1286
1287        buffer_1.update(cx, |buffer, cx| buffer.edit([(5..5, " world")], None, cx));
1288        assert_eq!(
1289            lsp.receive_notification::<lsp::notification::DidChangeTextDocument>()
1290                .await,
1291            lsp::DidChangeTextDocumentParams {
1292                text_document: lsp::VersionedTextDocumentIdentifier::new(buffer_1_uri.clone(), 1),
1293                content_changes: vec![lsp::TextDocumentContentChangeEvent {
1294                    range: Some(lsp::Range::new(
1295                        lsp::Position::new(0, 5),
1296                        lsp::Position::new(0, 5)
1297                    )),
1298                    range_length: None,
1299                    text: " world".into(),
1300                }],
1301            }
1302        );
1303
1304        // Ensure updates to the file are reflected in the LSP.
1305        buffer_1.update(cx, |buffer, cx| {
1306            buffer.file_updated(
1307                Arc::new(File {
1308                    abs_path: path!("/root/child/buffer-1").into(),
1309                    path: rel_path("child/buffer-1").into(),
1310                }),
1311                cx,
1312            )
1313        });
1314        assert_eq!(
1315            lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
1316                .await,
1317            lsp::DidCloseTextDocumentParams {
1318                text_document: lsp::TextDocumentIdentifier::new(buffer_1_uri),
1319            }
1320        );
1321        let buffer_1_uri = lsp::Uri::from_file_path(path!("/root/child/buffer-1")).unwrap();
1322        assert_eq!(
1323            lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
1324                .await,
1325            lsp::DidOpenTextDocumentParams {
1326                text_document: lsp::TextDocumentItem::new(
1327                    buffer_1_uri.clone(),
1328                    "plaintext".into(),
1329                    1,
1330                    "Hello world".into()
1331                ),
1332            }
1333        );
1334
1335        // Ensure all previously-registered buffers are closed when signing out.
1336        lsp.set_request_handler::<request::SignOut, _, _>(|_, _| async {
1337            Ok(request::SignOutResult {})
1338        });
1339        copilot
1340            .update(cx, |copilot, cx| copilot.sign_out(cx))
1341            .await
1342            .unwrap();
1343        assert_eq!(
1344            lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
1345                .await,
1346            lsp::DidCloseTextDocumentParams {
1347                text_document: lsp::TextDocumentIdentifier::new(buffer_1_uri.clone()),
1348            }
1349        );
1350        assert_eq!(
1351            lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
1352                .await,
1353            lsp::DidCloseTextDocumentParams {
1354                text_document: lsp::TextDocumentIdentifier::new(buffer_2_uri.clone()),
1355            }
1356        );
1357
1358        // Ensure all previously-registered buffers are re-opened when signing in.
1359        lsp.set_request_handler::<request::SignInInitiate, _, _>(|_, _| async {
1360            Ok(request::SignInInitiateResult::AlreadySignedIn {
1361                user: "user-1".into(),
1362            })
1363        });
1364        copilot
1365            .update(cx, |copilot, cx| copilot.sign_in(cx))
1366            .await
1367            .unwrap();
1368
1369        assert_eq!(
1370            lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
1371                .await,
1372            lsp::DidOpenTextDocumentParams {
1373                text_document: lsp::TextDocumentItem::new(
1374                    buffer_1_uri.clone(),
1375                    "plaintext".into(),
1376                    0,
1377                    "Hello world".into()
1378                ),
1379            }
1380        );
1381        assert_eq!(
1382            lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
1383                .await,
1384            lsp::DidOpenTextDocumentParams {
1385                text_document: lsp::TextDocumentItem::new(
1386                    buffer_2_uri.clone(),
1387                    "plaintext".into(),
1388                    0,
1389                    "Goodbye".into()
1390                ),
1391            }
1392        );
1393        // Dropping a buffer causes it to be closed on the LSP side as well.
1394        cx.update(|_| drop(buffer_2));
1395        assert_eq!(
1396            lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
1397                .await,
1398            lsp::DidCloseTextDocumentParams {
1399                text_document: lsp::TextDocumentIdentifier::new(buffer_2_uri),
1400            }
1401        );
1402    }
1403
1404    struct File {
1405        abs_path: PathBuf,
1406        path: Arc<RelPath>,
1407    }
1408
1409    impl language::File for File {
1410        fn as_local(&self) -> Option<&dyn language::LocalFile> {
1411            Some(self)
1412        }
1413
1414        fn disk_state(&self) -> language::DiskState {
1415            language::DiskState::Present {
1416                mtime: ::fs::MTime::from_seconds_and_nanos(100, 42),
1417            }
1418        }
1419
1420        fn path(&self) -> &Arc<RelPath> {
1421            &self.path
1422        }
1423
1424        fn path_style(&self, _: &App) -> PathStyle {
1425            PathStyle::local()
1426        }
1427
1428        fn full_path(&self, _: &App) -> PathBuf {
1429            unimplemented!()
1430        }
1431
1432        fn file_name<'a>(&'a self, _: &'a App) -> &'a str {
1433            unimplemented!()
1434        }
1435
1436        fn to_proto(&self, _: &App) -> rpc::proto::File {
1437            unimplemented!()
1438        }
1439
1440        fn worktree_id(&self, _: &App) -> settings::WorktreeId {
1441            settings::WorktreeId::from_usize(0)
1442        }
1443
1444        fn is_private(&self) -> bool {
1445            false
1446        }
1447    }
1448
1449    impl language::LocalFile for File {
1450        fn abs_path(&self, _: &App) -> PathBuf {
1451            self.abs_path.clone()
1452        }
1453
1454        fn load(&self, _: &App) -> Task<Result<String>> {
1455            unimplemented!()
1456        }
1457
1458        fn load_bytes(&self, _cx: &App) -> Task<Result<Vec<u8>>> {
1459            unimplemented!()
1460        }
1461    }
1462}
1463
1464#[cfg(test)]
1465#[ctor::ctor]
1466fn init_logger() {
1467    zlog::init_test();
1468}