project.rs

   1pub mod buffer_store;
   2mod color_extractor;
   3pub mod connection_manager;
   4pub mod debounced_delay;
   5pub mod lsp_command;
   6pub mod lsp_ext_command;
   7pub mod lsp_store;
   8pub mod prettier_store;
   9pub mod project_settings;
  10pub mod search;
  11mod task_inventory;
  12pub mod task_store;
  13pub mod terminals;
  14pub mod worktree_store;
  15
  16#[cfg(test)]
  17mod project_tests;
  18
  19mod direnv;
  20mod environment;
  21pub use environment::EnvironmentErrorMessage;
  22pub mod search_history;
  23mod yarn;
  24
  25use anyhow::{anyhow, Context as _, Result};
  26use buffer_store::{BufferStore, BufferStoreEvent};
  27use client::{
  28    proto, Client, Collaborator, DevServerProjectId, PendingEntitySubscription, ProjectId,
  29    TypedEnvelope, UserStore,
  30};
  31use clock::ReplicaId;
  32use collections::{BTreeSet, HashMap, HashSet};
  33use debounced_delay::DebouncedDelay;
  34pub use environment::ProjectEnvironment;
  35use futures::{
  36    channel::mpsc::{self, UnboundedReceiver},
  37    future::try_join_all,
  38    StreamExt,
  39};
  40
  41use git::{blame::Blame, repository::GitRepository};
  42use gpui::{
  43    AnyModel, AppContext, AsyncAppContext, BorrowAppContext, Context as _, EventEmitter, Hsla,
  44    Model, ModelContext, SharedString, Task, WeakModel, WindowContext,
  45};
  46use itertools::Itertools;
  47use language::{
  48    language_settings::InlayHintKind, proto::split_operations, Buffer, BufferEvent,
  49    CachedLspAdapter, Capability, CodeLabel, DiagnosticEntry, Documentation, File as _, Language,
  50    LanguageRegistry, LanguageServerName, PointUtf16, ToOffset, ToPointUtf16, Transaction,
  51    Unclipped,
  52};
  53use lsp::{
  54    CompletionContext, CompletionItemKind, DocumentHighlightKind, LanguageServer, LanguageServerId,
  55    MessageActionItem,
  56};
  57use lsp_command::*;
  58use node_runtime::NodeRuntime;
  59use parking_lot::{Mutex, RwLock};
  60pub use prettier_store::PrettierStore;
  61use project_settings::{ProjectSettings, SettingsObserver, SettingsObserverEvent};
  62use remote::{SshConnectionOptions, SshRemoteClient};
  63use rpc::{
  64    proto::{LanguageServerPromptResponse, SSH_PROJECT_ID},
  65    AnyProtoClient, ErrorCode,
  66};
  67use search::{SearchInputKind, SearchQuery, SearchResult};
  68use search_history::SearchHistory;
  69use settings::{InvalidSettingsError, Settings, SettingsLocation, SettingsStore};
  70use smol::channel::Receiver;
  71use snippet::Snippet;
  72use snippet_provider::SnippetProvider;
  73use std::{
  74    borrow::Cow,
  75    ops::Range,
  76    path::{Component, Path, PathBuf},
  77    str,
  78    sync::Arc,
  79    time::Duration,
  80};
  81use task_store::TaskStore;
  82use terminals::Terminals;
  83use text::{Anchor, BufferId};
  84use util::{paths::compare_paths, ResultExt as _};
  85use worktree::{CreatedEntry, Snapshot, Traversal};
  86use worktree_store::{WorktreeStore, WorktreeStoreEvent};
  87
  88pub use fs::*;
  89pub use language::Location;
  90#[cfg(any(test, feature = "test-support"))]
  91pub use prettier::FORMAT_SUFFIX as TEST_PRETTIER_FORMAT_SUFFIX;
  92pub use task_inventory::{
  93    BasicContextProvider, ContextProviderWithTasks, Inventory, TaskSourceKind,
  94};
  95pub use worktree::{
  96    Entry, EntryKind, File, LocalWorktree, PathChange, ProjectEntryId, RepositoryEntry,
  97    UpdatedEntriesSet, UpdatedGitRepositoriesSet, Worktree, WorktreeId, WorktreeSettings,
  98    FS_WATCH_LATENCY,
  99};
 100
 101pub use buffer_store::ProjectTransaction;
 102pub use lsp_store::{
 103    DiagnosticSummary, LanguageServerLogType, LanguageServerProgress, LanguageServerPromptRequest,
 104    LanguageServerStatus, LanguageServerToQuery, LspStore, LspStoreEvent,
 105    SERVER_PROGRESS_THROTTLE_TIMEOUT,
 106};
 107
 108const MAX_PROJECT_SEARCH_HISTORY_SIZE: usize = 500;
 109const MAX_SEARCH_RESULT_FILES: usize = 5_000;
 110const MAX_SEARCH_RESULT_RANGES: usize = 10_000;
 111
 112pub trait Item {
 113    fn try_open(
 114        project: &Model<Project>,
 115        path: &ProjectPath,
 116        cx: &mut AppContext,
 117    ) -> Option<Task<Result<Model<Self>>>>
 118    where
 119        Self: Sized;
 120    fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
 121    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath>;
 122}
 123
 124#[derive(Clone)]
 125pub enum OpenedBufferEvent {
 126    Disconnected,
 127    Ok(BufferId),
 128    Err(BufferId, Arc<anyhow::Error>),
 129}
 130
 131/// Semantics-aware entity that is relevant to one or more [`Worktree`] with the files.
 132/// `Project` is responsible for tasks, LSP and collab queries, synchronizing worktree states accordingly.
 133/// Maps [`Worktree`] entries with its own logic using [`ProjectEntryId`] and [`ProjectPath`] structs.
 134///
 135/// Can be either local (for the project opened on the same host) or remote.(for collab projects, browsed by multiple remote users).
 136pub struct Project {
 137    active_entry: Option<ProjectEntryId>,
 138    buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
 139    languages: Arc<LanguageRegistry>,
 140    client: Arc<client::Client>,
 141    join_project_response_message_id: u32,
 142    task_store: Model<TaskStore>,
 143    user_store: Model<UserStore>,
 144    fs: Arc<dyn Fs>,
 145    ssh_client: Option<Model<SshRemoteClient>>,
 146    client_state: ProjectClientState,
 147    collaborators: HashMap<proto::PeerId, Collaborator>,
 148    client_subscriptions: Vec<client::Subscription>,
 149    worktree_store: Model<WorktreeStore>,
 150    buffer_store: Model<BufferStore>,
 151    lsp_store: Model<LspStore>,
 152    _subscriptions: Vec<gpui::Subscription>,
 153    buffers_needing_diff: HashSet<WeakModel<Buffer>>,
 154    git_diff_debouncer: DebouncedDelay<Self>,
 155    remotely_created_models: Arc<Mutex<RemotelyCreatedModels>>,
 156    terminals: Terminals,
 157    node: Option<NodeRuntime>,
 158    hosted_project_id: Option<ProjectId>,
 159    dev_server_project_id: Option<client::DevServerProjectId>,
 160    search_history: SearchHistory,
 161    search_included_history: SearchHistory,
 162    search_excluded_history: SearchHistory,
 163    snippets: Model<SnippetProvider>,
 164    environment: Model<ProjectEnvironment>,
 165    settings_observer: Model<SettingsObserver>,
 166}
 167
 168#[derive(Default)]
 169struct RemotelyCreatedModels {
 170    worktrees: Vec<Model<Worktree>>,
 171    buffers: Vec<Model<Buffer>>,
 172    retain_count: usize,
 173}
 174
 175struct RemotelyCreatedModelGuard {
 176    remote_models: std::sync::Weak<Mutex<RemotelyCreatedModels>>,
 177}
 178
 179impl Drop for RemotelyCreatedModelGuard {
 180    fn drop(&mut self) {
 181        if let Some(remote_models) = self.remote_models.upgrade() {
 182            let mut remote_models = remote_models.lock();
 183            assert!(
 184                remote_models.retain_count > 0,
 185                "RemotelyCreatedModelGuard dropped too many times"
 186            );
 187            remote_models.retain_count -= 1;
 188            if remote_models.retain_count == 0 {
 189                remote_models.buffers.clear();
 190                remote_models.worktrees.clear();
 191            }
 192        }
 193    }
 194}
 195/// Message ordered with respect to buffer operations
 196#[derive(Debug)]
 197enum BufferOrderedMessage {
 198    Operation {
 199        buffer_id: BufferId,
 200        operation: proto::Operation,
 201    },
 202    LanguageServerUpdate {
 203        language_server_id: LanguageServerId,
 204        message: proto::update_language_server::Variant,
 205    },
 206    Resync,
 207}
 208
 209#[derive(Debug)]
 210enum ProjectClientState {
 211    Local,
 212    Shared {
 213        remote_id: u64,
 214    },
 215    Remote {
 216        sharing_has_stopped: bool,
 217        capability: Capability,
 218        remote_id: u64,
 219        replica_id: ReplicaId,
 220        in_room: bool,
 221    },
 222}
 223
 224#[derive(Clone, Debug, PartialEq)]
 225pub enum Event {
 226    LanguageServerAdded(LanguageServerId, LanguageServerName, Option<WorktreeId>),
 227    LanguageServerRemoved(LanguageServerId),
 228    LanguageServerLog(LanguageServerId, LanguageServerLogType, String),
 229    Toast {
 230        notification_id: SharedString,
 231        message: String,
 232    },
 233    HideToast {
 234        notification_id: SharedString,
 235    },
 236    LanguageServerPrompt(LanguageServerPromptRequest),
 237    LanguageNotFound(Model<Buffer>),
 238    ActiveEntryChanged(Option<ProjectEntryId>),
 239    ActivateProjectPanel,
 240    WorktreeAdded,
 241    WorktreeOrderChanged,
 242    WorktreeRemoved(WorktreeId),
 243    WorktreeUpdatedEntries(WorktreeId, UpdatedEntriesSet),
 244    WorktreeUpdatedGitRepositories,
 245    DiskBasedDiagnosticsStarted {
 246        language_server_id: LanguageServerId,
 247    },
 248    DiskBasedDiagnosticsFinished {
 249        language_server_id: LanguageServerId,
 250    },
 251    DiagnosticsUpdated {
 252        path: ProjectPath,
 253        language_server_id: LanguageServerId,
 254    },
 255    RemoteIdChanged(Option<u64>),
 256    DisconnectedFromHost,
 257    DisconnectedFromSshRemote,
 258    Closed,
 259    DeletedEntry(ProjectEntryId),
 260    CollaboratorUpdated {
 261        old_peer_id: proto::PeerId,
 262        new_peer_id: proto::PeerId,
 263    },
 264    CollaboratorJoined(proto::PeerId),
 265    CollaboratorLeft(proto::PeerId),
 266    HostReshared,
 267    Reshared,
 268    Rejoined,
 269    RefreshInlayHints,
 270    RevealInProjectPanel(ProjectEntryId),
 271    SnippetEdit(BufferId, Vec<(lsp::Range, Snippet)>),
 272}
 273
 274#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
 275pub struct ProjectPath {
 276    pub worktree_id: WorktreeId,
 277    pub path: Arc<Path>,
 278}
 279
 280impl ProjectPath {
 281    pub fn from_proto(p: proto::ProjectPath) -> Self {
 282        Self {
 283            worktree_id: WorktreeId::from_proto(p.worktree_id),
 284            path: Arc::from(PathBuf::from(p.path)),
 285        }
 286    }
 287
 288    pub fn to_proto(&self) -> proto::ProjectPath {
 289        proto::ProjectPath {
 290            worktree_id: self.worktree_id.to_proto(),
 291            path: self.path.to_string_lossy().to_string(),
 292        }
 293    }
 294}
 295
 296#[derive(Debug, Clone, PartialEq, Eq)]
 297pub struct InlayHint {
 298    pub position: language::Anchor,
 299    pub label: InlayHintLabel,
 300    pub kind: Option<InlayHintKind>,
 301    pub padding_left: bool,
 302    pub padding_right: bool,
 303    pub tooltip: Option<InlayHintTooltip>,
 304    pub resolve_state: ResolveState,
 305}
 306
 307/// The user's intent behind a given completion confirmation
 308#[derive(PartialEq, Eq, Hash, Debug, Clone, Copy)]
 309pub enum CompletionIntent {
 310    /// The user intends to 'commit' this result, if possible
 311    /// completion confirmations should run side effects
 312    Complete,
 313    /// The user intends to continue 'composing' this completion
 314    /// completion confirmations should not run side effects and
 315    /// let the user continue composing their action
 316    Compose,
 317}
 318
 319impl CompletionIntent {
 320    pub fn is_complete(&self) -> bool {
 321        self == &Self::Complete
 322    }
 323
 324    pub fn is_compose(&self) -> bool {
 325        self == &Self::Compose
 326    }
 327}
 328
 329/// A completion provided by a language server
 330#[derive(Clone)]
 331pub struct Completion {
 332    /// The range of the buffer that will be replaced.
 333    pub old_range: Range<Anchor>,
 334    /// The new text that will be inserted.
 335    pub new_text: String,
 336    /// A label for this completion that is shown in the menu.
 337    pub label: CodeLabel,
 338    /// The id of the language server that produced this completion.
 339    pub server_id: LanguageServerId,
 340    /// The documentation for this completion.
 341    pub documentation: Option<Documentation>,
 342    /// The raw completion provided by the language server.
 343    pub lsp_completion: lsp::CompletionItem,
 344    /// An optional callback to invoke when this completion is confirmed.
 345    /// Returns, whether new completions should be retriggered after the current one.
 346    /// If `true` is returned, the editor will show a new completion menu after this completion is confirmed.
 347    /// if no confirmation is provided or `false` is returned, the completion will be committed.
 348    pub confirm: Option<Arc<dyn Send + Sync + Fn(CompletionIntent, &mut WindowContext) -> bool>>,
 349}
 350
 351impl std::fmt::Debug for Completion {
 352    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 353        f.debug_struct("Completion")
 354            .field("old_range", &self.old_range)
 355            .field("new_text", &self.new_text)
 356            .field("label", &self.label)
 357            .field("server_id", &self.server_id)
 358            .field("documentation", &self.documentation)
 359            .field("lsp_completion", &self.lsp_completion)
 360            .finish()
 361    }
 362}
 363
 364/// A completion provided by a language server
 365#[derive(Clone, Debug)]
 366pub(crate) struct CoreCompletion {
 367    old_range: Range<Anchor>,
 368    new_text: String,
 369    server_id: LanguageServerId,
 370    lsp_completion: lsp::CompletionItem,
 371}
 372
 373/// A code action provided by a language server.
 374#[derive(Clone, Debug)]
 375pub struct CodeAction {
 376    /// The id of the language server that produced this code action.
 377    pub server_id: LanguageServerId,
 378    /// The range of the buffer where this code action is applicable.
 379    pub range: Range<Anchor>,
 380    /// The raw code action provided by the language server.
 381    pub lsp_action: lsp::CodeAction,
 382}
 383
 384#[derive(Debug, Clone, PartialEq, Eq)]
 385pub enum ResolveState {
 386    Resolved,
 387    CanResolve(LanguageServerId, Option<lsp::LSPAny>),
 388    Resolving,
 389}
 390
 391impl InlayHint {
 392    pub fn text(&self) -> String {
 393        match &self.label {
 394            InlayHintLabel::String(s) => s.to_owned(),
 395            InlayHintLabel::LabelParts(parts) => parts.iter().map(|part| &part.value).join(""),
 396        }
 397    }
 398}
 399
 400#[derive(Debug, Clone, PartialEq, Eq)]
 401pub enum InlayHintLabel {
 402    String(String),
 403    LabelParts(Vec<InlayHintLabelPart>),
 404}
 405
 406#[derive(Debug, Clone, PartialEq, Eq)]
 407pub struct InlayHintLabelPart {
 408    pub value: String,
 409    pub tooltip: Option<InlayHintLabelPartTooltip>,
 410    pub location: Option<(LanguageServerId, lsp::Location)>,
 411}
 412
 413#[derive(Debug, Clone, PartialEq, Eq)]
 414pub enum InlayHintTooltip {
 415    String(String),
 416    MarkupContent(MarkupContent),
 417}
 418
 419#[derive(Debug, Clone, PartialEq, Eq)]
 420pub enum InlayHintLabelPartTooltip {
 421    String(String),
 422    MarkupContent(MarkupContent),
 423}
 424
 425#[derive(Debug, Clone, PartialEq, Eq)]
 426pub struct MarkupContent {
 427    pub kind: HoverBlockKind,
 428    pub value: String,
 429}
 430
 431#[derive(Debug, Clone)]
 432pub struct LocationLink {
 433    pub origin: Option<Location>,
 434    pub target: Location,
 435}
 436
 437#[derive(Debug)]
 438pub struct DocumentHighlight {
 439    pub range: Range<language::Anchor>,
 440    pub kind: DocumentHighlightKind,
 441}
 442
 443#[derive(Clone, Debug)]
 444pub struct Symbol {
 445    pub language_server_name: LanguageServerName,
 446    pub source_worktree_id: WorktreeId,
 447    pub path: ProjectPath,
 448    pub label: CodeLabel,
 449    pub name: String,
 450    pub kind: lsp::SymbolKind,
 451    pub range: Range<Unclipped<PointUtf16>>,
 452    pub signature: [u8; 32],
 453}
 454
 455#[derive(Clone, Debug, PartialEq)]
 456pub struct HoverBlock {
 457    pub text: String,
 458    pub kind: HoverBlockKind,
 459}
 460
 461#[derive(Clone, Debug, PartialEq, Eq)]
 462pub enum HoverBlockKind {
 463    PlainText,
 464    Markdown,
 465    Code { language: String },
 466}
 467
 468#[derive(Debug, Clone)]
 469pub struct Hover {
 470    pub contents: Vec<HoverBlock>,
 471    pub range: Option<Range<language::Anchor>>,
 472    pub language: Option<Arc<Language>>,
 473}
 474
 475impl Hover {
 476    pub fn is_empty(&self) -> bool {
 477        self.contents.iter().all(|block| block.text.is_empty())
 478    }
 479}
 480
 481enum EntitySubscription {
 482    Project(PendingEntitySubscription<Project>),
 483    BufferStore(PendingEntitySubscription<BufferStore>),
 484    WorktreeStore(PendingEntitySubscription<WorktreeStore>),
 485    LspStore(PendingEntitySubscription<LspStore>),
 486    SettingsObserver(PendingEntitySubscription<SettingsObserver>),
 487}
 488
 489#[derive(Clone)]
 490pub enum DirectoryLister {
 491    Project(Model<Project>),
 492    Local(Arc<dyn Fs>),
 493}
 494
 495impl DirectoryLister {
 496    pub fn is_local(&self, cx: &AppContext) -> bool {
 497        match self {
 498            DirectoryLister::Local(_) => true,
 499            DirectoryLister::Project(project) => project.read(cx).is_local(),
 500        }
 501    }
 502
 503    pub fn resolve_tilde<'a>(&self, path: &'a String, cx: &AppContext) -> Cow<'a, str> {
 504        if self.is_local(cx) {
 505            shellexpand::tilde(path)
 506        } else {
 507            Cow::from(path)
 508        }
 509    }
 510
 511    pub fn default_query(&self, cx: &mut AppContext) -> String {
 512        if let DirectoryLister::Project(project) = self {
 513            if let Some(worktree) = project.read(cx).visible_worktrees(cx).next() {
 514                return worktree.read(cx).abs_path().to_string_lossy().to_string();
 515            }
 516        };
 517        "~/".to_string()
 518    }
 519
 520    pub fn list_directory(&self, path: String, cx: &mut AppContext) -> Task<Result<Vec<PathBuf>>> {
 521        match self {
 522            DirectoryLister::Project(project) => {
 523                project.update(cx, |project, cx| project.list_directory(path, cx))
 524            }
 525            DirectoryLister::Local(fs) => {
 526                let fs = fs.clone();
 527                cx.background_executor().spawn(async move {
 528                    let mut results = vec![];
 529                    let expanded = shellexpand::tilde(&path);
 530                    let query = Path::new(expanded.as_ref());
 531                    let mut response = fs.read_dir(query).await?;
 532                    while let Some(path) = response.next().await {
 533                        if let Some(file_name) = path?.file_name() {
 534                            results.push(PathBuf::from(file_name.to_os_string()));
 535                        }
 536                    }
 537                    Ok(results)
 538                })
 539            }
 540        }
 541    }
 542}
 543
 544#[cfg(any(test, feature = "test-support"))]
 545pub const DEFAULT_COMPLETION_CONTEXT: CompletionContext = CompletionContext {
 546    trigger_kind: lsp::CompletionTriggerKind::INVOKED,
 547    trigger_character: None,
 548};
 549
 550impl Project {
 551    pub fn init_settings(cx: &mut AppContext) {
 552        WorktreeSettings::register(cx);
 553        ProjectSettings::register(cx);
 554    }
 555
 556    pub fn init(client: &Arc<Client>, cx: &mut AppContext) {
 557        connection_manager::init(client.clone(), cx);
 558        Self::init_settings(cx);
 559
 560        let client: AnyProtoClient = client.clone().into();
 561        client.add_model_message_handler(Self::handle_add_collaborator);
 562        client.add_model_message_handler(Self::handle_update_project_collaborator);
 563        client.add_model_message_handler(Self::handle_remove_collaborator);
 564        client.add_model_message_handler(Self::handle_update_project);
 565        client.add_model_message_handler(Self::handle_unshare_project);
 566        client.add_model_request_handler(Self::handle_update_buffer);
 567        client.add_model_message_handler(Self::handle_update_worktree);
 568        client.add_model_request_handler(Self::handle_synchronize_buffers);
 569
 570        client.add_model_request_handler(Self::handle_search_candidate_buffers);
 571        client.add_model_request_handler(Self::handle_open_buffer_by_id);
 572        client.add_model_request_handler(Self::handle_open_buffer_by_path);
 573        client.add_model_request_handler(Self::handle_open_new_buffer);
 574        client.add_model_message_handler(Self::handle_create_buffer_for_peer);
 575
 576        WorktreeStore::init(&client);
 577        BufferStore::init(&client);
 578        LspStore::init(&client);
 579        SettingsObserver::init(&client);
 580        TaskStore::init(Some(&client));
 581    }
 582
 583    pub fn local(
 584        client: Arc<Client>,
 585        node: NodeRuntime,
 586        user_store: Model<UserStore>,
 587        languages: Arc<LanguageRegistry>,
 588        fs: Arc<dyn Fs>,
 589        env: Option<HashMap<String, String>>,
 590        cx: &mut AppContext,
 591    ) -> Model<Self> {
 592        cx.new_model(|cx: &mut ModelContext<Self>| {
 593            let (tx, rx) = mpsc::unbounded();
 594            cx.spawn(move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
 595                .detach();
 596            let snippets = SnippetProvider::new(fs.clone(), BTreeSet::from_iter([]), cx);
 597            let worktree_store = cx.new_model(|_| WorktreeStore::local(false, fs.clone()));
 598            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
 599                .detach();
 600
 601            let buffer_store = cx.new_model(|cx| BufferStore::local(worktree_store.clone(), cx));
 602            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
 603                .detach();
 604
 605            let prettier_store = cx.new_model(|cx| {
 606                PrettierStore::new(
 607                    node.clone(),
 608                    fs.clone(),
 609                    languages.clone(),
 610                    worktree_store.clone(),
 611                    cx,
 612                )
 613            });
 614
 615            let environment = ProjectEnvironment::new(&worktree_store, env, cx);
 616
 617            let task_store = cx.new_model(|cx| {
 618                TaskStore::local(
 619                    fs.clone(),
 620                    buffer_store.downgrade(),
 621                    worktree_store.clone(),
 622                    environment.clone(),
 623                    cx,
 624                )
 625            });
 626
 627            let settings_observer = cx.new_model(|cx| {
 628                SettingsObserver::new_local(
 629                    fs.clone(),
 630                    worktree_store.clone(),
 631                    task_store.clone(),
 632                    cx,
 633                )
 634            });
 635            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
 636                .detach();
 637
 638            let lsp_store = cx.new_model(|cx| {
 639                LspStore::new_local(
 640                    buffer_store.clone(),
 641                    worktree_store.clone(),
 642                    prettier_store.clone(),
 643                    environment.clone(),
 644                    languages.clone(),
 645                    client.http_client(),
 646                    fs.clone(),
 647                    cx,
 648                )
 649            });
 650            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
 651
 652            Self {
 653                buffer_ordered_messages_tx: tx,
 654                collaborators: Default::default(),
 655                worktree_store,
 656                buffer_store,
 657                lsp_store,
 658                join_project_response_message_id: 0,
 659                client_state: ProjectClientState::Local,
 660                client_subscriptions: Vec::new(),
 661                _subscriptions: vec![cx.on_release(Self::release)],
 662                active_entry: None,
 663                snippets,
 664                languages,
 665                client,
 666                task_store,
 667                user_store,
 668                settings_observer,
 669                fs,
 670                ssh_client: None,
 671                buffers_needing_diff: Default::default(),
 672                git_diff_debouncer: DebouncedDelay::new(),
 673                terminals: Terminals {
 674                    local_handles: Vec::new(),
 675                },
 676                node: Some(node),
 677                hosted_project_id: None,
 678                dev_server_project_id: None,
 679                search_history: Self::new_search_history(),
 680                environment,
 681                remotely_created_models: Default::default(),
 682
 683                search_included_history: Self::new_search_history(),
 684                search_excluded_history: Self::new_search_history(),
 685            }
 686        })
 687    }
 688
 689    pub fn ssh(
 690        ssh: Model<SshRemoteClient>,
 691        client: Arc<Client>,
 692        node: NodeRuntime,
 693        user_store: Model<UserStore>,
 694        languages: Arc<LanguageRegistry>,
 695        fs: Arc<dyn Fs>,
 696        cx: &mut AppContext,
 697    ) -> Model<Self> {
 698        cx.new_model(|cx: &mut ModelContext<Self>| {
 699            let (tx, rx) = mpsc::unbounded();
 700            cx.spawn(move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
 701                .detach();
 702            let global_snippets_dir = paths::config_dir().join("snippets");
 703            let snippets =
 704                SnippetProvider::new(fs.clone(), BTreeSet::from_iter([global_snippets_dir]), cx);
 705
 706            let ssh_proto = ssh.read(cx).proto_client();
 707            let worktree_store =
 708                cx.new_model(|_| WorktreeStore::remote(false, ssh_proto.clone(), 0, None));
 709            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
 710                .detach();
 711
 712            let buffer_store = cx.new_model(|cx| {
 713                BufferStore::remote(
 714                    worktree_store.clone(),
 715                    ssh.read(cx).proto_client(),
 716                    SSH_PROJECT_ID,
 717                    cx,
 718                )
 719            });
 720            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
 721                .detach();
 722
 723            let task_store = cx.new_model(|cx| {
 724                TaskStore::remote(
 725                    fs.clone(),
 726                    buffer_store.downgrade(),
 727                    worktree_store.clone(),
 728                    ssh.read(cx).proto_client(),
 729                    SSH_PROJECT_ID,
 730                    cx,
 731                )
 732            });
 733
 734            let settings_observer = cx.new_model(|cx| {
 735                SettingsObserver::new_remote(worktree_store.clone(), task_store.clone(), cx)
 736            });
 737            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
 738                .detach();
 739
 740            let environment = ProjectEnvironment::new(&worktree_store, None, cx);
 741            let lsp_store = cx.new_model(|cx| {
 742                LspStore::new_remote(
 743                    buffer_store.clone(),
 744                    worktree_store.clone(),
 745                    languages.clone(),
 746                    ssh_proto.clone(),
 747                    SSH_PROJECT_ID,
 748                    cx,
 749                )
 750            });
 751            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
 752
 753            cx.subscribe(&ssh, Self::on_ssh_event).detach();
 754            cx.observe(&ssh, |_, _, cx| cx.notify()).detach();
 755
 756            let this = Self {
 757                buffer_ordered_messages_tx: tx,
 758                collaborators: Default::default(),
 759                worktree_store,
 760                buffer_store,
 761                lsp_store,
 762                join_project_response_message_id: 0,
 763                client_state: ProjectClientState::Local,
 764                client_subscriptions: Vec::new(),
 765                _subscriptions: vec![
 766                    cx.on_release(Self::release),
 767                    cx.on_app_quit(|this, cx| {
 768                        let shutdown = this.ssh_client.take().and_then(|client| {
 769                            client
 770                                .read(cx)
 771                                .shutdown_processes(Some(proto::ShutdownRemoteServer {}))
 772                        });
 773
 774                        cx.background_executor().spawn(async move {
 775                            if let Some(shutdown) = shutdown {
 776                                shutdown.await;
 777                            }
 778                        })
 779                    }),
 780                ],
 781                active_entry: None,
 782                snippets,
 783                languages,
 784                client,
 785                task_store,
 786                user_store,
 787                settings_observer,
 788                fs,
 789                ssh_client: Some(ssh.clone()),
 790                buffers_needing_diff: Default::default(),
 791                git_diff_debouncer: DebouncedDelay::new(),
 792                terminals: Terminals {
 793                    local_handles: Vec::new(),
 794                },
 795                node: Some(node),
 796                hosted_project_id: None,
 797                dev_server_project_id: None,
 798                search_history: Self::new_search_history(),
 799                environment,
 800                remotely_created_models: Default::default(),
 801
 802                search_included_history: Self::new_search_history(),
 803                search_excluded_history: Self::new_search_history(),
 804            };
 805
 806            let ssh = ssh.read(cx);
 807            ssh.subscribe_to_entity(SSH_PROJECT_ID, &cx.handle());
 808            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.buffer_store);
 809            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.worktree_store);
 810            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.lsp_store);
 811            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.settings_observer);
 812
 813            ssh_proto.add_model_message_handler(Self::handle_create_buffer_for_peer);
 814            ssh_proto.add_model_message_handler(Self::handle_update_worktree);
 815            ssh_proto.add_model_message_handler(Self::handle_update_project);
 816            ssh_proto.add_model_message_handler(Self::handle_toast);
 817            ssh_proto.add_model_request_handler(Self::handle_language_server_prompt_request);
 818            ssh_proto.add_model_message_handler(Self::handle_hide_toast);
 819            ssh_proto.add_model_request_handler(BufferStore::handle_update_buffer);
 820            BufferStore::init(&ssh_proto);
 821            LspStore::init(&ssh_proto);
 822            SettingsObserver::init(&ssh_proto);
 823            TaskStore::init(Some(&ssh_proto));
 824
 825            this
 826        })
 827    }
 828
 829    pub async fn remote(
 830        remote_id: u64,
 831        client: Arc<Client>,
 832        user_store: Model<UserStore>,
 833        languages: Arc<LanguageRegistry>,
 834        fs: Arc<dyn Fs>,
 835        cx: AsyncAppContext,
 836    ) -> Result<Model<Self>> {
 837        let project =
 838            Self::in_room(remote_id, client, user_store, languages, fs, cx.clone()).await?;
 839        cx.update(|cx| {
 840            connection_manager::Manager::global(cx).update(cx, |manager, cx| {
 841                manager.maintain_project_connection(&project, cx)
 842            })
 843        })?;
 844        Ok(project)
 845    }
 846
 847    pub async fn in_room(
 848        remote_id: u64,
 849        client: Arc<Client>,
 850        user_store: Model<UserStore>,
 851        languages: Arc<LanguageRegistry>,
 852        fs: Arc<dyn Fs>,
 853        cx: AsyncAppContext,
 854    ) -> Result<Model<Self>> {
 855        client.authenticate_and_connect(true, &cx).await?;
 856
 857        let subscriptions = [
 858            EntitySubscription::Project(client.subscribe_to_entity::<Self>(remote_id)?),
 859            EntitySubscription::BufferStore(client.subscribe_to_entity::<BufferStore>(remote_id)?),
 860            EntitySubscription::WorktreeStore(
 861                client.subscribe_to_entity::<WorktreeStore>(remote_id)?,
 862            ),
 863            EntitySubscription::LspStore(client.subscribe_to_entity::<LspStore>(remote_id)?),
 864            EntitySubscription::SettingsObserver(
 865                client.subscribe_to_entity::<SettingsObserver>(remote_id)?,
 866            ),
 867        ];
 868        let response = client
 869            .request_envelope(proto::JoinProject {
 870                project_id: remote_id,
 871            })
 872            .await?;
 873        Self::from_join_project_response(
 874            response,
 875            subscriptions,
 876            client,
 877            false,
 878            user_store,
 879            languages,
 880            fs,
 881            cx,
 882        )
 883        .await
 884    }
 885
 886    #[allow(clippy::too_many_arguments)]
 887    async fn from_join_project_response(
 888        response: TypedEnvelope<proto::JoinProjectResponse>,
 889        subscriptions: [EntitySubscription; 5],
 890        client: Arc<Client>,
 891        run_tasks: bool,
 892        user_store: Model<UserStore>,
 893        languages: Arc<LanguageRegistry>,
 894        fs: Arc<dyn Fs>,
 895        mut cx: AsyncAppContext,
 896    ) -> Result<Model<Self>> {
 897        let remote_id = response.payload.project_id;
 898        let role = response.payload.role();
 899
 900        let worktree_store = cx.new_model(|_| {
 901            WorktreeStore::remote(
 902                true,
 903                client.clone().into(),
 904                response.payload.project_id,
 905                response
 906                    .payload
 907                    .dev_server_project_id
 908                    .map(DevServerProjectId),
 909            )
 910        })?;
 911        let buffer_store = cx.new_model(|cx| {
 912            BufferStore::remote(worktree_store.clone(), client.clone().into(), remote_id, cx)
 913        })?;
 914
 915        let lsp_store = cx.new_model(|cx| {
 916            let mut lsp_store = LspStore::new_remote(
 917                buffer_store.clone(),
 918                worktree_store.clone(),
 919                languages.clone(),
 920                client.clone().into(),
 921                remote_id,
 922                cx,
 923            );
 924            lsp_store.set_language_server_statuses_from_proto(response.payload.language_servers);
 925            lsp_store
 926        })?;
 927
 928        let task_store = cx.new_model(|cx| {
 929            if run_tasks {
 930                TaskStore::remote(
 931                    fs.clone(),
 932                    buffer_store.downgrade(),
 933                    worktree_store.clone(),
 934                    client.clone().into(),
 935                    remote_id,
 936                    cx,
 937                )
 938            } else {
 939                TaskStore::Noop
 940            }
 941        })?;
 942
 943        let settings_observer = cx.new_model(|cx| {
 944            SettingsObserver::new_remote(worktree_store.clone(), task_store.clone(), cx)
 945        })?;
 946
 947        let this = cx.new_model(|cx| {
 948            let replica_id = response.payload.replica_id as ReplicaId;
 949
 950            let snippets = SnippetProvider::new(fs.clone(), BTreeSet::from_iter([]), cx);
 951
 952            let mut worktrees = Vec::new();
 953            for worktree in response.payload.worktrees {
 954                let worktree =
 955                    Worktree::remote(remote_id, replica_id, worktree, client.clone().into(), cx);
 956                worktrees.push(worktree);
 957            }
 958
 959            let (tx, rx) = mpsc::unbounded();
 960            cx.spawn(move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx))
 961                .detach();
 962
 963            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
 964                .detach();
 965
 966            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
 967                .detach();
 968            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
 969            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
 970                .detach();
 971
 972            let mut this = Self {
 973                buffer_ordered_messages_tx: tx,
 974                buffer_store: buffer_store.clone(),
 975                worktree_store: worktree_store.clone(),
 976                lsp_store: lsp_store.clone(),
 977                active_entry: None,
 978                collaborators: Default::default(),
 979                join_project_response_message_id: response.message_id,
 980                languages,
 981                user_store: user_store.clone(),
 982                task_store,
 983                snippets,
 984                fs,
 985                ssh_client: None,
 986                settings_observer: settings_observer.clone(),
 987                client_subscriptions: Default::default(),
 988                _subscriptions: vec![cx.on_release(Self::release)],
 989                client: client.clone(),
 990                client_state: ProjectClientState::Remote {
 991                    sharing_has_stopped: false,
 992                    capability: Capability::ReadWrite,
 993                    remote_id,
 994                    replica_id,
 995                    in_room: response.payload.dev_server_project_id.is_none(),
 996                },
 997                buffers_needing_diff: Default::default(),
 998                git_diff_debouncer: DebouncedDelay::new(),
 999                terminals: Terminals {
1000                    local_handles: Vec::new(),
1001                },
1002                node: None,
1003                hosted_project_id: None,
1004                dev_server_project_id: response
1005                    .payload
1006                    .dev_server_project_id
1007                    .map(DevServerProjectId),
1008                search_history: Self::new_search_history(),
1009                search_included_history: Self::new_search_history(),
1010                search_excluded_history: Self::new_search_history(),
1011                environment: ProjectEnvironment::new(&worktree_store, None, cx),
1012                remotely_created_models: Arc::new(Mutex::new(RemotelyCreatedModels::default())),
1013            };
1014            this.set_role(role, cx);
1015            for worktree in worktrees {
1016                this.add_worktree(&worktree, cx);
1017            }
1018            this
1019        })?;
1020
1021        let subscriptions = subscriptions
1022            .into_iter()
1023            .map(|s| match s {
1024                EntitySubscription::BufferStore(subscription) => {
1025                    subscription.set_model(&buffer_store, &mut cx)
1026                }
1027                EntitySubscription::WorktreeStore(subscription) => {
1028                    subscription.set_model(&worktree_store, &mut cx)
1029                }
1030                EntitySubscription::SettingsObserver(subscription) => {
1031                    subscription.set_model(&settings_observer, &mut cx)
1032                }
1033                EntitySubscription::Project(subscription) => subscription.set_model(&this, &mut cx),
1034                EntitySubscription::LspStore(subscription) => {
1035                    subscription.set_model(&lsp_store, &mut cx)
1036                }
1037            })
1038            .collect::<Vec<_>>();
1039
1040        let user_ids = response
1041            .payload
1042            .collaborators
1043            .iter()
1044            .map(|peer| peer.user_id)
1045            .collect();
1046        user_store
1047            .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))?
1048            .await?;
1049
1050        this.update(&mut cx, |this, cx| {
1051            this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
1052            this.client_subscriptions.extend(subscriptions);
1053            anyhow::Ok(())
1054        })??;
1055
1056        Ok(this)
1057    }
1058
1059    pub async fn hosted(
1060        remote_id: ProjectId,
1061        user_store: Model<UserStore>,
1062        client: Arc<Client>,
1063        languages: Arc<LanguageRegistry>,
1064        fs: Arc<dyn Fs>,
1065        cx: AsyncAppContext,
1066    ) -> Result<Model<Self>> {
1067        client.authenticate_and_connect(true, &cx).await?;
1068
1069        let subscriptions = [
1070            EntitySubscription::Project(client.subscribe_to_entity::<Self>(remote_id.0)?),
1071            EntitySubscription::BufferStore(
1072                client.subscribe_to_entity::<BufferStore>(remote_id.0)?,
1073            ),
1074            EntitySubscription::WorktreeStore(
1075                client.subscribe_to_entity::<WorktreeStore>(remote_id.0)?,
1076            ),
1077            EntitySubscription::LspStore(client.subscribe_to_entity::<LspStore>(remote_id.0)?),
1078            EntitySubscription::SettingsObserver(
1079                client.subscribe_to_entity::<SettingsObserver>(remote_id.0)?,
1080            ),
1081        ];
1082        let response = client
1083            .request_envelope(proto::JoinHostedProject {
1084                project_id: remote_id.0,
1085            })
1086            .await?;
1087        Self::from_join_project_response(
1088            response,
1089            subscriptions,
1090            client,
1091            true,
1092            user_store,
1093            languages,
1094            fs,
1095            cx,
1096        )
1097        .await
1098    }
1099
1100    fn new_search_history() -> SearchHistory {
1101        SearchHistory::new(
1102            Some(MAX_PROJECT_SEARCH_HISTORY_SIZE),
1103            search_history::QueryInsertionBehavior::AlwaysInsert,
1104        )
1105    }
1106
1107    fn release(&mut self, cx: &mut AppContext) {
1108        if let Some(client) = self.ssh_client.take() {
1109            let shutdown = client
1110                .read(cx)
1111                .shutdown_processes(Some(proto::ShutdownRemoteServer {}));
1112
1113            cx.background_executor()
1114                .spawn(async move {
1115                    if let Some(shutdown) = shutdown {
1116                        shutdown.await;
1117                    }
1118                })
1119                .detach()
1120        }
1121
1122        match &self.client_state {
1123            ProjectClientState::Local => {}
1124            ProjectClientState::Shared { .. } => {
1125                let _ = self.unshare_internal(cx);
1126            }
1127            ProjectClientState::Remote { remote_id, .. } => {
1128                let _ = self.client.send(proto::LeaveProject {
1129                    project_id: *remote_id,
1130                });
1131                self.disconnected_from_host_internal(cx);
1132            }
1133        }
1134    }
1135
1136    #[cfg(any(test, feature = "test-support"))]
1137    pub async fn example(
1138        root_paths: impl IntoIterator<Item = &Path>,
1139        cx: &mut AsyncAppContext,
1140    ) -> Model<Project> {
1141        use clock::FakeSystemClock;
1142
1143        let fs = Arc::new(RealFs::default());
1144        let languages = LanguageRegistry::test(cx.background_executor().clone());
1145        let clock = Arc::new(FakeSystemClock::default());
1146        let http_client = http_client::FakeHttpClient::with_404_response();
1147        let client = cx
1148            .update(|cx| client::Client::new(clock, http_client.clone(), cx))
1149            .unwrap();
1150        let user_store = cx
1151            .new_model(|cx| UserStore::new(client.clone(), cx))
1152            .unwrap();
1153        let project = cx
1154            .update(|cx| {
1155                Project::local(
1156                    client,
1157                    node_runtime::NodeRuntime::unavailable(),
1158                    user_store,
1159                    Arc::new(languages),
1160                    fs,
1161                    None,
1162                    cx,
1163                )
1164            })
1165            .unwrap();
1166        for path in root_paths {
1167            let (tree, _) = project
1168                .update(cx, |project, cx| {
1169                    project.find_or_create_worktree(path, true, cx)
1170                })
1171                .unwrap()
1172                .await
1173                .unwrap();
1174            tree.update(cx, |tree, _| tree.as_local().unwrap().scan_complete())
1175                .unwrap()
1176                .await;
1177        }
1178        project
1179    }
1180
1181    #[cfg(any(test, feature = "test-support"))]
1182    pub async fn test(
1183        fs: Arc<dyn Fs>,
1184        root_paths: impl IntoIterator<Item = &Path>,
1185        cx: &mut gpui::TestAppContext,
1186    ) -> Model<Project> {
1187        use clock::FakeSystemClock;
1188        use gpui::Context;
1189
1190        let languages = LanguageRegistry::test(cx.executor());
1191        let clock = Arc::new(FakeSystemClock::default());
1192        let http_client = http_client::FakeHttpClient::with_404_response();
1193        let client = cx.update(|cx| client::Client::new(clock, http_client.clone(), cx));
1194        let user_store = cx.new_model(|cx| UserStore::new(client.clone(), cx));
1195        let project = cx.update(|cx| {
1196            Project::local(
1197                client,
1198                node_runtime::NodeRuntime::unavailable(),
1199                user_store,
1200                Arc::new(languages),
1201                fs,
1202                None,
1203                cx,
1204            )
1205        });
1206        for path in root_paths {
1207            let (tree, _) = project
1208                .update(cx, |project, cx| {
1209                    project.find_or_create_worktree(path, true, cx)
1210                })
1211                .await
1212                .unwrap();
1213
1214            project.update(cx, |project, cx| {
1215                let tree_id = tree.read(cx).id();
1216                project.environment.update(cx, |environment, _| {
1217                    environment.set_cached(&[(tree_id, HashMap::default())])
1218                });
1219            });
1220
1221            tree.update(cx, |tree, _| tree.as_local().unwrap().scan_complete())
1222                .await;
1223        }
1224        project
1225    }
1226
1227    pub fn lsp_store(&self) -> Model<LspStore> {
1228        self.lsp_store.clone()
1229    }
1230
1231    pub fn worktree_store(&self) -> Model<WorktreeStore> {
1232        self.worktree_store.clone()
1233    }
1234
1235    pub fn buffer_for_id(&self, remote_id: BufferId, cx: &AppContext) -> Option<Model<Buffer>> {
1236        self.buffer_store.read(cx).get(remote_id)
1237    }
1238
1239    pub fn languages(&self) -> &Arc<LanguageRegistry> {
1240        &self.languages
1241    }
1242
1243    pub fn client(&self) -> Arc<Client> {
1244        self.client.clone()
1245    }
1246
1247    pub fn ssh_client(&self) -> Option<Model<SshRemoteClient>> {
1248        self.ssh_client.clone()
1249    }
1250
1251    pub fn user_store(&self) -> Model<UserStore> {
1252        self.user_store.clone()
1253    }
1254
1255    pub fn node_runtime(&self) -> Option<&NodeRuntime> {
1256        self.node.as_ref()
1257    }
1258
1259    pub fn opened_buffers(&self, cx: &AppContext) -> Vec<Model<Buffer>> {
1260        self.buffer_store.read(cx).buffers().collect()
1261    }
1262
1263    pub fn cli_environment(&self, cx: &AppContext) -> Option<HashMap<String, String>> {
1264        self.environment.read(cx).get_cli_environment()
1265    }
1266
1267    pub fn shell_environment_errors<'a>(
1268        &'a self,
1269        cx: &'a AppContext,
1270    ) -> impl Iterator<Item = (&'a WorktreeId, &'a EnvironmentErrorMessage)> {
1271        self.environment.read(cx).environment_errors()
1272    }
1273
1274    pub fn remove_environment_error(
1275        &mut self,
1276        cx: &mut ModelContext<Self>,
1277        worktree_id: WorktreeId,
1278    ) {
1279        self.environment.update(cx, |environment, _| {
1280            environment.remove_environment_error(worktree_id);
1281        });
1282    }
1283
1284    #[cfg(any(test, feature = "test-support"))]
1285    pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
1286        self.buffer_store
1287            .read(cx)
1288            .get_by_path(&path.into(), cx)
1289            .is_some()
1290    }
1291
1292    pub fn fs(&self) -> &Arc<dyn Fs> {
1293        &self.fs
1294    }
1295
1296    pub fn remote_id(&self) -> Option<u64> {
1297        match self.client_state {
1298            ProjectClientState::Local => None,
1299            ProjectClientState::Shared { remote_id, .. }
1300            | ProjectClientState::Remote { remote_id, .. } => Some(remote_id),
1301        }
1302    }
1303
1304    pub fn hosted_project_id(&self) -> Option<ProjectId> {
1305        self.hosted_project_id
1306    }
1307
1308    pub fn dev_server_project_id(&self) -> Option<DevServerProjectId> {
1309        self.dev_server_project_id
1310    }
1311
1312    pub fn supports_terminal(&self, cx: &AppContext) -> bool {
1313        if self.is_local() {
1314            return true;
1315        }
1316        if self.is_via_ssh() {
1317            return true;
1318        }
1319        let Some(id) = self.dev_server_project_id else {
1320            return false;
1321        };
1322        let Some(server) = dev_server_projects::Store::global(cx)
1323            .read(cx)
1324            .dev_server_for_project(id)
1325        else {
1326            return false;
1327        };
1328        server.ssh_connection_string.is_some()
1329    }
1330
1331    pub fn ssh_connection_string(&self, cx: &AppContext) -> Option<SharedString> {
1332        if let Some(ssh_state) = &self.ssh_client {
1333            return Some(ssh_state.read(cx).connection_string().into());
1334        }
1335        let dev_server_id = self.dev_server_project_id()?;
1336        dev_server_projects::Store::global(cx)
1337            .read(cx)
1338            .dev_server_for_project(dev_server_id)?
1339            .ssh_connection_string
1340            .clone()
1341    }
1342
1343    pub fn ssh_connection_state(&self, cx: &AppContext) -> Option<remote::ConnectionState> {
1344        self.ssh_client
1345            .as_ref()
1346            .map(|ssh| ssh.read(cx).connection_state())
1347    }
1348
1349    pub fn ssh_connection_options(&self, cx: &AppContext) -> Option<SshConnectionOptions> {
1350        self.ssh_client
1351            .as_ref()
1352            .map(|ssh| ssh.read(cx).connection_options())
1353    }
1354
1355    pub fn replica_id(&self) -> ReplicaId {
1356        match self.client_state {
1357            ProjectClientState::Remote { replica_id, .. } => replica_id,
1358            _ => {
1359                if self.ssh_client.is_some() {
1360                    1
1361                } else {
1362                    0
1363                }
1364            }
1365        }
1366    }
1367
1368    pub fn task_store(&self) -> &Model<TaskStore> {
1369        &self.task_store
1370    }
1371
1372    pub fn snippets(&self) -> &Model<SnippetProvider> {
1373        &self.snippets
1374    }
1375
1376    pub fn search_history(&self, kind: SearchInputKind) -> &SearchHistory {
1377        match kind {
1378            SearchInputKind::Query => &self.search_history,
1379            SearchInputKind::Include => &self.search_included_history,
1380            SearchInputKind::Exclude => &self.search_excluded_history,
1381        }
1382    }
1383
1384    pub fn search_history_mut(&mut self, kind: SearchInputKind) -> &mut SearchHistory {
1385        match kind {
1386            SearchInputKind::Query => &mut self.search_history,
1387            SearchInputKind::Include => &mut self.search_included_history,
1388            SearchInputKind::Exclude => &mut self.search_excluded_history,
1389        }
1390    }
1391
1392    pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
1393        &self.collaborators
1394    }
1395
1396    pub fn host(&self) -> Option<&Collaborator> {
1397        self.collaborators.values().find(|c| c.replica_id == 0)
1398    }
1399
1400    pub fn set_worktrees_reordered(&mut self, worktrees_reordered: bool, cx: &mut AppContext) {
1401        self.worktree_store.update(cx, |store, _| {
1402            store.set_worktrees_reordered(worktrees_reordered);
1403        });
1404    }
1405
1406    /// Collect all worktrees, including ones that don't appear in the project panel
1407    pub fn worktrees<'a>(
1408        &self,
1409        cx: &'a AppContext,
1410    ) -> impl 'a + DoubleEndedIterator<Item = Model<Worktree>> {
1411        self.worktree_store.read(cx).worktrees()
1412    }
1413
1414    /// Collect all user-visible worktrees, the ones that appear in the project panel.
1415    pub fn visible_worktrees<'a>(
1416        &'a self,
1417        cx: &'a AppContext,
1418    ) -> impl 'a + DoubleEndedIterator<Item = Model<Worktree>> {
1419        self.worktree_store.read(cx).visible_worktrees(cx)
1420    }
1421
1422    pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
1423        self.visible_worktrees(cx)
1424            .map(|tree| tree.read(cx).root_name())
1425    }
1426
1427    pub fn worktree_for_id(&self, id: WorktreeId, cx: &AppContext) -> Option<Model<Worktree>> {
1428        self.worktree_store.read(cx).worktree_for_id(id, cx)
1429    }
1430
1431    pub fn worktree_for_entry(
1432        &self,
1433        entry_id: ProjectEntryId,
1434        cx: &AppContext,
1435    ) -> Option<Model<Worktree>> {
1436        self.worktree_store
1437            .read(cx)
1438            .worktree_for_entry(entry_id, cx)
1439    }
1440
1441    pub fn worktree_id_for_entry(
1442        &self,
1443        entry_id: ProjectEntryId,
1444        cx: &AppContext,
1445    ) -> Option<WorktreeId> {
1446        self.worktree_for_entry(entry_id, cx)
1447            .map(|worktree| worktree.read(cx).id())
1448    }
1449
1450    /// Checks if the entry is the root of a worktree.
1451    pub fn entry_is_worktree_root(&self, entry_id: ProjectEntryId, cx: &AppContext) -> bool {
1452        self.worktree_for_entry(entry_id, cx)
1453            .map(|worktree| {
1454                worktree
1455                    .read(cx)
1456                    .root_entry()
1457                    .is_some_and(|e| e.id == entry_id)
1458            })
1459            .unwrap_or(false)
1460    }
1461
1462    pub fn visibility_for_paths(&self, paths: &[PathBuf], cx: &AppContext) -> Option<bool> {
1463        paths
1464            .iter()
1465            .map(|path| self.visibility_for_path(path, cx))
1466            .max()
1467            .flatten()
1468    }
1469
1470    pub fn visibility_for_path(&self, path: &Path, cx: &AppContext) -> Option<bool> {
1471        self.worktrees(cx)
1472            .filter_map(|worktree| {
1473                let worktree = worktree.read(cx);
1474                worktree
1475                    .as_local()?
1476                    .contains_abs_path(path)
1477                    .then(|| worktree.is_visible())
1478            })
1479            .max()
1480    }
1481
1482    pub fn create_entry(
1483        &mut self,
1484        project_path: impl Into<ProjectPath>,
1485        is_directory: bool,
1486        cx: &mut ModelContext<Self>,
1487    ) -> Task<Result<CreatedEntry>> {
1488        let project_path = project_path.into();
1489        let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) else {
1490            return Task::ready(Err(anyhow!(format!(
1491                "No worktree for path {project_path:?}"
1492            ))));
1493        };
1494        worktree.update(cx, |worktree, cx| {
1495            worktree.create_entry(project_path.path, is_directory, cx)
1496        })
1497    }
1498
1499    pub fn copy_entry(
1500        &mut self,
1501        entry_id: ProjectEntryId,
1502        relative_worktree_source_path: Option<PathBuf>,
1503        new_path: impl Into<Arc<Path>>,
1504        cx: &mut ModelContext<Self>,
1505    ) -> Task<Result<Option<Entry>>> {
1506        let Some(worktree) = self.worktree_for_entry(entry_id, cx) else {
1507            return Task::ready(Ok(None));
1508        };
1509        worktree.update(cx, |worktree, cx| {
1510            worktree.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
1511        })
1512    }
1513
1514    pub fn rename_entry(
1515        &mut self,
1516        entry_id: ProjectEntryId,
1517        new_path: impl Into<Arc<Path>>,
1518        cx: &mut ModelContext<Self>,
1519    ) -> Task<Result<CreatedEntry>> {
1520        let Some(worktree) = self.worktree_for_entry(entry_id, cx) else {
1521            return Task::ready(Err(anyhow!(format!("No worktree for entry {entry_id:?}"))));
1522        };
1523        worktree.update(cx, |worktree, cx| {
1524            worktree.rename_entry(entry_id, new_path, cx)
1525        })
1526    }
1527
1528    pub fn delete_entry(
1529        &mut self,
1530        entry_id: ProjectEntryId,
1531        trash: bool,
1532        cx: &mut ModelContext<Self>,
1533    ) -> Option<Task<Result<()>>> {
1534        let worktree = self.worktree_for_entry(entry_id, cx)?;
1535        worktree.update(cx, |worktree, cx| {
1536            worktree.delete_entry(entry_id, trash, cx)
1537        })
1538    }
1539
1540    pub fn expand_entry(
1541        &mut self,
1542        worktree_id: WorktreeId,
1543        entry_id: ProjectEntryId,
1544        cx: &mut ModelContext<Self>,
1545    ) -> Option<Task<Result<()>>> {
1546        let worktree = self.worktree_for_id(worktree_id, cx)?;
1547        worktree.update(cx, |worktree, cx| worktree.expand_entry(entry_id, cx))
1548    }
1549
1550    pub fn shared(&mut self, project_id: u64, cx: &mut ModelContext<Self>) -> Result<()> {
1551        if !matches!(self.client_state, ProjectClientState::Local) {
1552            if let ProjectClientState::Remote { in_room, .. } = &mut self.client_state {
1553                if *in_room || self.dev_server_project_id.is_none() {
1554                    return Err(anyhow!("project was already shared"));
1555                } else {
1556                    *in_room = true;
1557                    return Ok(());
1558                }
1559            } else {
1560                return Err(anyhow!("project was already shared"));
1561            }
1562        }
1563        self.client_subscriptions.extend([
1564            self.client
1565                .subscribe_to_entity(project_id)?
1566                .set_model(&cx.handle(), &mut cx.to_async()),
1567            self.client
1568                .subscribe_to_entity(project_id)?
1569                .set_model(&self.worktree_store, &mut cx.to_async()),
1570            self.client
1571                .subscribe_to_entity(project_id)?
1572                .set_model(&self.buffer_store, &mut cx.to_async()),
1573            self.client
1574                .subscribe_to_entity(project_id)?
1575                .set_model(&self.lsp_store, &mut cx.to_async()),
1576            self.client
1577                .subscribe_to_entity(project_id)?
1578                .set_model(&self.settings_observer, &mut cx.to_async()),
1579        ]);
1580
1581        self.buffer_store.update(cx, |buffer_store, cx| {
1582            buffer_store.shared(project_id, self.client.clone().into(), cx)
1583        });
1584        self.worktree_store.update(cx, |worktree_store, cx| {
1585            worktree_store.shared(project_id, self.client.clone().into(), cx);
1586        });
1587        self.lsp_store.update(cx, |lsp_store, cx| {
1588            lsp_store.shared(project_id, self.client.clone().into(), cx)
1589        });
1590        self.task_store.update(cx, |task_store, cx| {
1591            task_store.shared(project_id, self.client.clone().into(), cx);
1592        });
1593        self.settings_observer.update(cx, |settings_observer, cx| {
1594            settings_observer.shared(project_id, self.client.clone().into(), cx)
1595        });
1596
1597        self.client_state = ProjectClientState::Shared {
1598            remote_id: project_id,
1599        };
1600
1601        cx.emit(Event::RemoteIdChanged(Some(project_id)));
1602        cx.notify();
1603        Ok(())
1604    }
1605
1606    pub fn reshared(
1607        &mut self,
1608        message: proto::ResharedProject,
1609        cx: &mut ModelContext<Self>,
1610    ) -> Result<()> {
1611        self.buffer_store
1612            .update(cx, |buffer_store, _| buffer_store.forget_shared_buffers());
1613        self.set_collaborators_from_proto(message.collaborators, cx)?;
1614
1615        self.worktree_store.update(cx, |worktree_store, cx| {
1616            worktree_store.send_project_updates(cx);
1617        });
1618        cx.notify();
1619        cx.emit(Event::Reshared);
1620        Ok(())
1621    }
1622
1623    pub fn rejoined(
1624        &mut self,
1625        message: proto::RejoinedProject,
1626        message_id: u32,
1627        cx: &mut ModelContext<Self>,
1628    ) -> Result<()> {
1629        cx.update_global::<SettingsStore, _>(|store, cx| {
1630            self.worktree_store.update(cx, |worktree_store, cx| {
1631                for worktree in worktree_store.worktrees() {
1632                    store
1633                        .clear_local_settings(worktree.read(cx).id(), cx)
1634                        .log_err();
1635                }
1636            });
1637        });
1638
1639        self.join_project_response_message_id = message_id;
1640        self.set_worktrees_from_proto(message.worktrees, cx)?;
1641        self.set_collaborators_from_proto(message.collaborators, cx)?;
1642        self.lsp_store.update(cx, |lsp_store, _| {
1643            lsp_store.set_language_server_statuses_from_proto(message.language_servers)
1644        });
1645        self.enqueue_buffer_ordered_message(BufferOrderedMessage::Resync)
1646            .unwrap();
1647        cx.emit(Event::Rejoined);
1648        cx.notify();
1649        Ok(())
1650    }
1651
1652    pub fn unshare(&mut self, cx: &mut ModelContext<Self>) -> Result<()> {
1653        self.unshare_internal(cx)?;
1654        cx.notify();
1655        Ok(())
1656    }
1657
1658    fn unshare_internal(&mut self, cx: &mut AppContext) -> Result<()> {
1659        if self.is_via_collab() {
1660            if self.dev_server_project_id().is_some() {
1661                if let ProjectClientState::Remote { in_room, .. } = &mut self.client_state {
1662                    *in_room = false
1663                }
1664                return Ok(());
1665            } else {
1666                return Err(anyhow!("attempted to unshare a remote project"));
1667            }
1668        }
1669
1670        if let ProjectClientState::Shared { remote_id, .. } = self.client_state {
1671            self.client_state = ProjectClientState::Local;
1672            self.collaborators.clear();
1673            self.client_subscriptions.clear();
1674            self.worktree_store.update(cx, |store, cx| {
1675                store.unshared(cx);
1676            });
1677            self.buffer_store.update(cx, |buffer_store, cx| {
1678                buffer_store.forget_shared_buffers();
1679                buffer_store.unshared(cx)
1680            });
1681            self.task_store.update(cx, |task_store, cx| {
1682                task_store.unshared(cx);
1683            });
1684            self.settings_observer.update(cx, |settings_observer, cx| {
1685                settings_observer.unshared(cx);
1686            });
1687
1688            self.client
1689                .send(proto::UnshareProject {
1690                    project_id: remote_id,
1691                })
1692                .ok();
1693            Ok(())
1694        } else {
1695            Err(anyhow!("attempted to unshare an unshared project"))
1696        }
1697    }
1698
1699    pub fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1700        if self.is_disconnected(cx) {
1701            return;
1702        }
1703        self.disconnected_from_host_internal(cx);
1704        cx.emit(Event::DisconnectedFromHost);
1705        cx.notify();
1706    }
1707
1708    pub fn set_role(&mut self, role: proto::ChannelRole, cx: &mut ModelContext<Self>) {
1709        let new_capability =
1710            if role == proto::ChannelRole::Member || role == proto::ChannelRole::Admin {
1711                Capability::ReadWrite
1712            } else {
1713                Capability::ReadOnly
1714            };
1715        if let ProjectClientState::Remote { capability, .. } = &mut self.client_state {
1716            if *capability == new_capability {
1717                return;
1718            }
1719
1720            *capability = new_capability;
1721            for buffer in self.opened_buffers(cx) {
1722                buffer.update(cx, |buffer, cx| buffer.set_capability(new_capability, cx));
1723            }
1724        }
1725    }
1726
1727    fn disconnected_from_host_internal(&mut self, cx: &mut AppContext) {
1728        if let ProjectClientState::Remote {
1729            sharing_has_stopped,
1730            ..
1731        } = &mut self.client_state
1732        {
1733            *sharing_has_stopped = true;
1734            self.collaborators.clear();
1735            self.worktree_store.update(cx, |store, cx| {
1736                store.disconnected_from_host(cx);
1737            });
1738            self.buffer_store.update(cx, |buffer_store, cx| {
1739                buffer_store.disconnected_from_host(cx)
1740            });
1741            self.lsp_store
1742                .update(cx, |lsp_store, _cx| lsp_store.disconnected_from_host());
1743        }
1744    }
1745
1746    pub fn close(&mut self, cx: &mut ModelContext<Self>) {
1747        cx.emit(Event::Closed);
1748    }
1749
1750    pub fn is_disconnected(&self, cx: &AppContext) -> bool {
1751        match &self.client_state {
1752            ProjectClientState::Remote {
1753                sharing_has_stopped,
1754                ..
1755            } => *sharing_has_stopped,
1756            ProjectClientState::Local if self.is_via_ssh() => self.ssh_is_disconnected(cx),
1757            _ => false,
1758        }
1759    }
1760
1761    fn ssh_is_disconnected(&self, cx: &AppContext) -> bool {
1762        self.ssh_client
1763            .as_ref()
1764            .map(|ssh| ssh.read(cx).is_disconnected())
1765            .unwrap_or(false)
1766    }
1767
1768    pub fn capability(&self) -> Capability {
1769        match &self.client_state {
1770            ProjectClientState::Remote { capability, .. } => *capability,
1771            ProjectClientState::Shared { .. } | ProjectClientState::Local => Capability::ReadWrite,
1772        }
1773    }
1774
1775    pub fn is_read_only(&self, cx: &AppContext) -> bool {
1776        self.is_disconnected(cx) || self.capability() == Capability::ReadOnly
1777    }
1778
1779    pub fn is_local(&self) -> bool {
1780        match &self.client_state {
1781            ProjectClientState::Local | ProjectClientState::Shared { .. } => {
1782                self.ssh_client.is_none()
1783            }
1784            ProjectClientState::Remote { .. } => false,
1785        }
1786    }
1787
1788    pub fn is_via_ssh(&self) -> bool {
1789        match &self.client_state {
1790            ProjectClientState::Local | ProjectClientState::Shared { .. } => {
1791                self.ssh_client.is_some()
1792            }
1793            ProjectClientState::Remote { .. } => false,
1794        }
1795    }
1796
1797    pub fn is_via_collab(&self) -> bool {
1798        match &self.client_state {
1799            ProjectClientState::Local | ProjectClientState::Shared { .. } => false,
1800            ProjectClientState::Remote { .. } => true,
1801        }
1802    }
1803
1804    pub fn create_buffer(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<Model<Buffer>>> {
1805        self.buffer_store
1806            .update(cx, |buffer_store, cx| buffer_store.create_buffer(cx))
1807    }
1808
1809    pub fn create_local_buffer(
1810        &mut self,
1811        text: &str,
1812        language: Option<Arc<Language>>,
1813        cx: &mut ModelContext<Self>,
1814    ) -> Model<Buffer> {
1815        if self.is_via_collab() || self.is_via_ssh() {
1816            panic!("called create_local_buffer on a remote project")
1817        }
1818        self.buffer_store.update(cx, |buffer_store, cx| {
1819            buffer_store.create_local_buffer(text, language, cx)
1820        })
1821    }
1822
1823    pub fn open_path(
1824        &mut self,
1825        path: ProjectPath,
1826        cx: &mut ModelContext<Self>,
1827    ) -> Task<Result<(Option<ProjectEntryId>, AnyModel)>> {
1828        let task = self.open_buffer(path.clone(), cx);
1829        cx.spawn(move |_, cx| async move {
1830            let buffer = task.await?;
1831            let project_entry_id = buffer.read_with(&cx, |buffer, cx| {
1832                File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1833            })?;
1834
1835            let buffer: &AnyModel = &buffer;
1836            Ok((project_entry_id, buffer.clone()))
1837        })
1838    }
1839
1840    pub fn open_local_buffer(
1841        &mut self,
1842        abs_path: impl AsRef<Path>,
1843        cx: &mut ModelContext<Self>,
1844    ) -> Task<Result<Model<Buffer>>> {
1845        if let Some((worktree, relative_path)) = self.find_worktree(abs_path.as_ref(), cx) {
1846            self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1847        } else {
1848            Task::ready(Err(anyhow!("no such path")))
1849        }
1850    }
1851
1852    pub fn open_buffer(
1853        &mut self,
1854        path: impl Into<ProjectPath>,
1855        cx: &mut ModelContext<Self>,
1856    ) -> Task<Result<Model<Buffer>>> {
1857        if (self.is_via_collab() || self.is_via_ssh()) && self.is_disconnected(cx) {
1858            return Task::ready(Err(anyhow!(ErrorCode::Disconnected)));
1859        }
1860
1861        self.buffer_store.update(cx, |buffer_store, cx| {
1862            buffer_store.open_buffer(path.into(), cx)
1863        })
1864    }
1865
1866    pub fn open_buffer_by_id(
1867        &mut self,
1868        id: BufferId,
1869        cx: &mut ModelContext<Self>,
1870    ) -> Task<Result<Model<Buffer>>> {
1871        if let Some(buffer) = self.buffer_for_id(id, cx) {
1872            Task::ready(Ok(buffer))
1873        } else if self.is_local() || self.is_via_ssh() {
1874            Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1875        } else if let Some(project_id) = self.remote_id() {
1876            let request = self.client.request(proto::OpenBufferById {
1877                project_id,
1878                id: id.into(),
1879            });
1880            cx.spawn(move |this, mut cx| async move {
1881                let buffer_id = BufferId::new(request.await?.buffer_id)?;
1882                this.update(&mut cx, |this, cx| {
1883                    this.wait_for_remote_buffer(buffer_id, cx)
1884                })?
1885                .await
1886            })
1887        } else {
1888            Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1889        }
1890    }
1891
1892    pub fn save_buffers(
1893        &self,
1894        buffers: HashSet<Model<Buffer>>,
1895        cx: &mut ModelContext<Self>,
1896    ) -> Task<Result<()>> {
1897        cx.spawn(move |this, mut cx| async move {
1898            let save_tasks = buffers.into_iter().filter_map(|buffer| {
1899                this.update(&mut cx, |this, cx| this.save_buffer(buffer, cx))
1900                    .ok()
1901            });
1902            try_join_all(save_tasks).await?;
1903            Ok(())
1904        })
1905    }
1906
1907    pub fn save_buffer(
1908        &self,
1909        buffer: Model<Buffer>,
1910        cx: &mut ModelContext<Self>,
1911    ) -> Task<Result<()>> {
1912        self.buffer_store
1913            .update(cx, |buffer_store, cx| buffer_store.save_buffer(buffer, cx))
1914    }
1915
1916    pub fn save_buffer_as(
1917        &mut self,
1918        buffer: Model<Buffer>,
1919        path: ProjectPath,
1920        cx: &mut ModelContext<Self>,
1921    ) -> Task<Result<()>> {
1922        self.buffer_store.update(cx, |buffer_store, cx| {
1923            buffer_store.save_buffer_as(buffer.clone(), path, cx)
1924        })
1925    }
1926
1927    pub fn get_open_buffer(
1928        &mut self,
1929        path: &ProjectPath,
1930        cx: &mut ModelContext<Self>,
1931    ) -> Option<Model<Buffer>> {
1932        self.buffer_store.read(cx).get_by_path(path, cx)
1933    }
1934
1935    fn register_buffer(
1936        &mut self,
1937        buffer: &Model<Buffer>,
1938        cx: &mut ModelContext<Self>,
1939    ) -> Result<()> {
1940        {
1941            let mut remotely_created_models = self.remotely_created_models.lock();
1942            if remotely_created_models.retain_count > 0 {
1943                remotely_created_models.buffers.push(buffer.clone())
1944            }
1945        }
1946
1947        self.request_buffer_diff_recalculation(buffer, cx);
1948
1949        cx.subscribe(buffer, |this, buffer, event, cx| {
1950            this.on_buffer_event(buffer, event, cx);
1951        })
1952        .detach();
1953
1954        Ok(())
1955    }
1956
1957    async fn send_buffer_ordered_messages(
1958        this: WeakModel<Self>,
1959        rx: UnboundedReceiver<BufferOrderedMessage>,
1960        mut cx: AsyncAppContext,
1961    ) -> Result<()> {
1962        const MAX_BATCH_SIZE: usize = 128;
1963
1964        let mut operations_by_buffer_id = HashMap::default();
1965        async fn flush_operations(
1966            this: &WeakModel<Project>,
1967            operations_by_buffer_id: &mut HashMap<BufferId, Vec<proto::Operation>>,
1968            needs_resync_with_host: &mut bool,
1969            is_local: bool,
1970            cx: &mut AsyncAppContext,
1971        ) -> Result<()> {
1972            for (buffer_id, operations) in operations_by_buffer_id.drain() {
1973                let request = this.update(cx, |this, _| {
1974                    let project_id = this.remote_id()?;
1975                    Some(this.client.request(proto::UpdateBuffer {
1976                        buffer_id: buffer_id.into(),
1977                        project_id,
1978                        operations,
1979                    }))
1980                })?;
1981                if let Some(request) = request {
1982                    if request.await.is_err() && !is_local {
1983                        *needs_resync_with_host = true;
1984                        break;
1985                    }
1986                }
1987            }
1988            Ok(())
1989        }
1990
1991        let mut needs_resync_with_host = false;
1992        let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
1993
1994        while let Some(changes) = changes.next().await {
1995            let is_local = this.update(&mut cx, |this, _| this.is_local())?;
1996
1997            for change in changes {
1998                match change {
1999                    BufferOrderedMessage::Operation {
2000                        buffer_id,
2001                        operation,
2002                    } => {
2003                        if needs_resync_with_host {
2004                            continue;
2005                        }
2006
2007                        operations_by_buffer_id
2008                            .entry(buffer_id)
2009                            .or_insert(Vec::new())
2010                            .push(operation);
2011                    }
2012
2013                    BufferOrderedMessage::Resync => {
2014                        operations_by_buffer_id.clear();
2015                        if this
2016                            .update(&mut cx, |this, cx| this.synchronize_remote_buffers(cx))?
2017                            .await
2018                            .is_ok()
2019                        {
2020                            needs_resync_with_host = false;
2021                        }
2022                    }
2023
2024                    BufferOrderedMessage::LanguageServerUpdate {
2025                        language_server_id,
2026                        message,
2027                    } => {
2028                        flush_operations(
2029                            &this,
2030                            &mut operations_by_buffer_id,
2031                            &mut needs_resync_with_host,
2032                            is_local,
2033                            &mut cx,
2034                        )
2035                        .await?;
2036
2037                        this.update(&mut cx, |this, _| {
2038                            if let Some(project_id) = this.remote_id() {
2039                                this.client
2040                                    .send(proto::UpdateLanguageServer {
2041                                        project_id,
2042                                        language_server_id: language_server_id.0 as u64,
2043                                        variant: Some(message),
2044                                    })
2045                                    .log_err();
2046                            }
2047                        })?;
2048                    }
2049                }
2050            }
2051
2052            flush_operations(
2053                &this,
2054                &mut operations_by_buffer_id,
2055                &mut needs_resync_with_host,
2056                is_local,
2057                &mut cx,
2058            )
2059            .await?;
2060        }
2061
2062        Ok(())
2063    }
2064
2065    fn on_buffer_store_event(
2066        &mut self,
2067        _: Model<BufferStore>,
2068        event: &BufferStoreEvent,
2069        cx: &mut ModelContext<Self>,
2070    ) {
2071        match event {
2072            BufferStoreEvent::BufferAdded(buffer) => {
2073                self.register_buffer(buffer, cx).log_err();
2074            }
2075            BufferStoreEvent::BufferChangedFilePath { .. } => {}
2076            BufferStoreEvent::BufferDropped(buffer_id) => {
2077                if let Some(ref ssh_client) = self.ssh_client {
2078                    ssh_client
2079                        .read(cx)
2080                        .proto_client()
2081                        .send(proto::CloseBuffer {
2082                            project_id: 0,
2083                            buffer_id: buffer_id.to_proto(),
2084                        })
2085                        .log_err();
2086                }
2087            }
2088        }
2089    }
2090
2091    fn on_lsp_store_event(
2092        &mut self,
2093        _: Model<LspStore>,
2094        event: &LspStoreEvent,
2095        cx: &mut ModelContext<Self>,
2096    ) {
2097        match event {
2098            LspStoreEvent::DiagnosticsUpdated {
2099                language_server_id,
2100                path,
2101            } => cx.emit(Event::DiagnosticsUpdated {
2102                path: path.clone(),
2103                language_server_id: *language_server_id,
2104            }),
2105            LspStoreEvent::LanguageServerAdded(language_server_id, name, worktree_id) => cx.emit(
2106                Event::LanguageServerAdded(*language_server_id, name.clone(), *worktree_id),
2107            ),
2108            LspStoreEvent::LanguageServerRemoved(language_server_id) => {
2109                cx.emit(Event::LanguageServerRemoved(*language_server_id))
2110            }
2111            LspStoreEvent::LanguageServerLog(server_id, log_type, string) => cx.emit(
2112                Event::LanguageServerLog(*server_id, log_type.clone(), string.clone()),
2113            ),
2114            LspStoreEvent::LanguageDetected {
2115                buffer,
2116                new_language,
2117            } => {
2118                let Some(_) = new_language else {
2119                    cx.emit(Event::LanguageNotFound(buffer.clone()));
2120                    return;
2121                };
2122            }
2123            LspStoreEvent::RefreshInlayHints => cx.emit(Event::RefreshInlayHints),
2124            LspStoreEvent::LanguageServerPrompt(prompt) => {
2125                cx.emit(Event::LanguageServerPrompt(prompt.clone()))
2126            }
2127            LspStoreEvent::DiskBasedDiagnosticsStarted { language_server_id } => {
2128                cx.emit(Event::DiskBasedDiagnosticsStarted {
2129                    language_server_id: *language_server_id,
2130                });
2131            }
2132            LspStoreEvent::DiskBasedDiagnosticsFinished { language_server_id } => {
2133                cx.emit(Event::DiskBasedDiagnosticsFinished {
2134                    language_server_id: *language_server_id,
2135                });
2136            }
2137            LspStoreEvent::LanguageServerUpdate {
2138                language_server_id,
2139                message,
2140            } => {
2141                if self.is_local() {
2142                    self.enqueue_buffer_ordered_message(
2143                        BufferOrderedMessage::LanguageServerUpdate {
2144                            language_server_id: *language_server_id,
2145                            message: message.clone(),
2146                        },
2147                    )
2148                    .ok();
2149                }
2150            }
2151            LspStoreEvent::Notification(message) => cx.emit(Event::Toast {
2152                notification_id: "lsp".into(),
2153                message: message.clone(),
2154            }),
2155            LspStoreEvent::SnippetEdit {
2156                buffer_id,
2157                edits,
2158                most_recent_edit,
2159            } => {
2160                if most_recent_edit.replica_id == self.replica_id() {
2161                    cx.emit(Event::SnippetEdit(*buffer_id, edits.clone()))
2162                }
2163            }
2164        }
2165    }
2166
2167    fn on_ssh_event(
2168        &mut self,
2169        _: Model<SshRemoteClient>,
2170        event: &remote::SshRemoteEvent,
2171        cx: &mut ModelContext<Self>,
2172    ) {
2173        match event {
2174            remote::SshRemoteEvent::Disconnected => {
2175                // if self.is_via_ssh() {
2176                // self.collaborators.clear();
2177                self.worktree_store.update(cx, |store, cx| {
2178                    store.disconnected_from_host(cx);
2179                });
2180                self.buffer_store.update(cx, |buffer_store, cx| {
2181                    buffer_store.disconnected_from_host(cx)
2182                });
2183                self.lsp_store.update(cx, |lsp_store, _cx| {
2184                    lsp_store.disconnected_from_ssh_remote()
2185                });
2186                cx.emit(Event::DisconnectedFromSshRemote);
2187            }
2188        }
2189    }
2190
2191    fn on_settings_observer_event(
2192        &mut self,
2193        _: Model<SettingsObserver>,
2194        event: &SettingsObserverEvent,
2195        cx: &mut ModelContext<Self>,
2196    ) {
2197        match event {
2198            SettingsObserverEvent::LocalSettingsUpdated(result) => match result {
2199                Err(InvalidSettingsError::LocalSettings { message, path }) => {
2200                    let message =
2201                        format!("Failed to set local settings in {:?}:\n{}", path, message);
2202                    cx.emit(Event::Toast {
2203                        notification_id: "local-settings".into(),
2204                        message,
2205                    });
2206                }
2207                Ok(_) => cx.emit(Event::HideToast {
2208                    notification_id: "local-settings".into(),
2209                }),
2210                Err(_) => {}
2211            },
2212        }
2213    }
2214
2215    fn on_worktree_store_event(
2216        &mut self,
2217        _: Model<WorktreeStore>,
2218        event: &WorktreeStoreEvent,
2219        cx: &mut ModelContext<Self>,
2220    ) {
2221        match event {
2222            WorktreeStoreEvent::WorktreeAdded(worktree) => {
2223                self.on_worktree_added(worktree, cx);
2224                cx.emit(Event::WorktreeAdded);
2225            }
2226            WorktreeStoreEvent::WorktreeRemoved(_, id) => {
2227                cx.emit(Event::WorktreeRemoved(*id));
2228            }
2229            WorktreeStoreEvent::WorktreeReleased(_, id) => {
2230                self.on_worktree_released(*id, cx);
2231            }
2232            WorktreeStoreEvent::WorktreeOrderChanged => cx.emit(Event::WorktreeOrderChanged),
2233            WorktreeStoreEvent::WorktreeUpdateSent(_) => {}
2234        }
2235    }
2236
2237    fn on_worktree_added(&mut self, worktree: &Model<Worktree>, cx: &mut ModelContext<Self>) {
2238        {
2239            let mut remotely_created_models = self.remotely_created_models.lock();
2240            if remotely_created_models.retain_count > 0 {
2241                remotely_created_models.worktrees.push(worktree.clone())
2242            }
2243        }
2244        cx.observe(worktree, |_, _, cx| cx.notify()).detach();
2245        cx.subscribe(worktree, |project, worktree, event, cx| match event {
2246            worktree::Event::UpdatedEntries(changes) => {
2247                cx.emit(Event::WorktreeUpdatedEntries(
2248                    worktree.read(cx).id(),
2249                    changes.clone(),
2250                ));
2251
2252                let worktree_id = worktree.update(cx, |worktree, _| worktree.id());
2253                project
2254                    .client()
2255                    .telemetry()
2256                    .report_discovered_project_events(worktree_id, changes);
2257            }
2258            worktree::Event::UpdatedGitRepositories(_) => {
2259                cx.emit(Event::WorktreeUpdatedGitRepositories);
2260            }
2261            worktree::Event::DeletedEntry(id) => cx.emit(Event::DeletedEntry(*id)),
2262        })
2263        .detach();
2264        cx.notify();
2265    }
2266
2267    fn on_worktree_released(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
2268        if let Some(dev_server_project_id) = self.dev_server_project_id {
2269            let paths: Vec<String> = self
2270                .visible_worktrees(cx)
2271                .filter_map(|worktree| {
2272                    if worktree.read(cx).id() == id_to_remove {
2273                        None
2274                    } else {
2275                        Some(worktree.read(cx).abs_path().to_string_lossy().to_string())
2276                    }
2277                })
2278                .collect();
2279            if !paths.is_empty() {
2280                let request = self.client.request(proto::UpdateDevServerProject {
2281                    dev_server_project_id: dev_server_project_id.0,
2282                    paths,
2283                });
2284                cx.background_executor()
2285                    .spawn(request)
2286                    .detach_and_log_err(cx);
2287            }
2288            return;
2289        }
2290
2291        if let Some(ssh) = &self.ssh_client {
2292            ssh.read(cx)
2293                .proto_client()
2294                .send(proto::RemoveWorktree {
2295                    worktree_id: id_to_remove.to_proto(),
2296                })
2297                .log_err();
2298        }
2299
2300        cx.notify();
2301    }
2302
2303    fn on_buffer_event(
2304        &mut self,
2305        buffer: Model<Buffer>,
2306        event: &BufferEvent,
2307        cx: &mut ModelContext<Self>,
2308    ) -> Option<()> {
2309        if matches!(
2310            event,
2311            BufferEvent::Edited { .. } | BufferEvent::Reloaded | BufferEvent::DiffBaseChanged
2312        ) {
2313            self.request_buffer_diff_recalculation(&buffer, cx);
2314        }
2315
2316        let buffer_id = buffer.read(cx).remote_id();
2317        match event {
2318            BufferEvent::ReloadNeeded => {
2319                if !self.is_via_collab() {
2320                    self.reload_buffers([buffer.clone()].into_iter().collect(), false, cx)
2321                        .detach_and_log_err(cx);
2322                }
2323            }
2324            BufferEvent::Operation {
2325                operation,
2326                is_local: true,
2327            } => {
2328                let operation = language::proto::serialize_operation(operation);
2329
2330                if let Some(ssh) = &self.ssh_client {
2331                    ssh.read(cx)
2332                        .proto_client()
2333                        .send(proto::UpdateBuffer {
2334                            project_id: 0,
2335                            buffer_id: buffer_id.to_proto(),
2336                            operations: vec![operation.clone()],
2337                        })
2338                        .ok();
2339                }
2340
2341                self.enqueue_buffer_ordered_message(BufferOrderedMessage::Operation {
2342                    buffer_id,
2343                    operation,
2344                })
2345                .ok();
2346            }
2347
2348            _ => {}
2349        }
2350
2351        None
2352    }
2353
2354    fn request_buffer_diff_recalculation(
2355        &mut self,
2356        buffer: &Model<Buffer>,
2357        cx: &mut ModelContext<Self>,
2358    ) {
2359        self.buffers_needing_diff.insert(buffer.downgrade());
2360        let first_insertion = self.buffers_needing_diff.len() == 1;
2361
2362        let settings = ProjectSettings::get_global(cx);
2363        let delay = if let Some(delay) = settings.git.gutter_debounce {
2364            delay
2365        } else {
2366            if first_insertion {
2367                let this = cx.weak_model();
2368                cx.defer(move |cx| {
2369                    if let Some(this) = this.upgrade() {
2370                        this.update(cx, |this, cx| {
2371                            this.recalculate_buffer_diffs(cx).detach();
2372                        });
2373                    }
2374                });
2375            }
2376            return;
2377        };
2378
2379        const MIN_DELAY: u64 = 50;
2380        let delay = delay.max(MIN_DELAY);
2381        let duration = Duration::from_millis(delay);
2382
2383        self.git_diff_debouncer
2384            .fire_new(duration, cx, move |this, cx| {
2385                this.recalculate_buffer_diffs(cx)
2386            });
2387    }
2388
2389    fn recalculate_buffer_diffs(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
2390        let buffers = self.buffers_needing_diff.drain().collect::<Vec<_>>();
2391        cx.spawn(move |this, mut cx| async move {
2392            let tasks: Vec<_> = buffers
2393                .iter()
2394                .filter_map(|buffer| {
2395                    let buffer = buffer.upgrade()?;
2396                    buffer
2397                        .update(&mut cx, |buffer, cx| buffer.recalculate_diff(cx))
2398                        .ok()
2399                        .flatten()
2400                })
2401                .collect();
2402
2403            futures::future::join_all(tasks).await;
2404
2405            this.update(&mut cx, |this, cx| {
2406                if this.buffers_needing_diff.is_empty() {
2407                    // TODO: Would a `ModelContext<Project>.notify()` suffice here?
2408                    for buffer in buffers {
2409                        if let Some(buffer) = buffer.upgrade() {
2410                            buffer.update(cx, |_, cx| cx.notify());
2411                        }
2412                    }
2413                } else {
2414                    this.recalculate_buffer_diffs(cx).detach();
2415                }
2416            })
2417            .ok();
2418        })
2419    }
2420
2421    pub fn set_language_for_buffer(
2422        &mut self,
2423        buffer: &Model<Buffer>,
2424        new_language: Arc<Language>,
2425        cx: &mut ModelContext<Self>,
2426    ) {
2427        self.lsp_store.update(cx, |lsp_store, cx| {
2428            lsp_store.set_language_for_buffer(buffer, new_language, cx)
2429        })
2430    }
2431
2432    pub fn restart_language_servers_for_buffers(
2433        &mut self,
2434        buffers: impl IntoIterator<Item = Model<Buffer>>,
2435        cx: &mut ModelContext<Self>,
2436    ) {
2437        self.lsp_store.update(cx, |lsp_store, cx| {
2438            lsp_store.restart_language_servers_for_buffers(buffers, cx)
2439        })
2440    }
2441
2442    pub fn cancel_language_server_work_for_buffers(
2443        &mut self,
2444        buffers: impl IntoIterator<Item = Model<Buffer>>,
2445        cx: &mut ModelContext<Self>,
2446    ) {
2447        self.lsp_store.update(cx, |lsp_store, cx| {
2448            lsp_store.cancel_language_server_work_for_buffers(buffers, cx)
2449        })
2450    }
2451
2452    pub fn cancel_language_server_work(
2453        &mut self,
2454        server_id: LanguageServerId,
2455        token_to_cancel: Option<String>,
2456        cx: &mut ModelContext<Self>,
2457    ) {
2458        self.lsp_store.update(cx, |lsp_store, cx| {
2459            lsp_store.cancel_language_server_work(server_id, token_to_cancel, cx)
2460        })
2461    }
2462
2463    fn enqueue_buffer_ordered_message(&mut self, message: BufferOrderedMessage) -> Result<()> {
2464        self.buffer_ordered_messages_tx
2465            .unbounded_send(message)
2466            .map_err(|e| anyhow!(e))
2467    }
2468
2469    pub fn language_server_statuses<'a>(
2470        &'a self,
2471        cx: &'a AppContext,
2472    ) -> impl DoubleEndedIterator<Item = (LanguageServerId, &'a LanguageServerStatus)> {
2473        self.lsp_store.read(cx).language_server_statuses()
2474    }
2475
2476    pub fn last_formatting_failure<'a>(&self, cx: &'a AppContext) -> Option<&'a str> {
2477        self.lsp_store.read(cx).last_formatting_failure()
2478    }
2479
2480    pub fn update_diagnostics(
2481        &mut self,
2482        language_server_id: LanguageServerId,
2483        params: lsp::PublishDiagnosticsParams,
2484        disk_based_sources: &[String],
2485        cx: &mut ModelContext<Self>,
2486    ) -> Result<()> {
2487        self.lsp_store.update(cx, |lsp_store, cx| {
2488            lsp_store.update_diagnostics(language_server_id, params, disk_based_sources, cx)
2489        })
2490    }
2491
2492    pub fn update_diagnostic_entries(
2493        &mut self,
2494        server_id: LanguageServerId,
2495        abs_path: PathBuf,
2496        version: Option<i32>,
2497        diagnostics: Vec<DiagnosticEntry<Unclipped<PointUtf16>>>,
2498        cx: &mut ModelContext<Project>,
2499    ) -> Result<(), anyhow::Error> {
2500        self.lsp_store.update(cx, |lsp_store, cx| {
2501            lsp_store.update_diagnostic_entries(server_id, abs_path, version, diagnostics, cx)
2502        })
2503    }
2504
2505    pub fn reload_buffers(
2506        &self,
2507        buffers: HashSet<Model<Buffer>>,
2508        push_to_history: bool,
2509        cx: &mut ModelContext<Self>,
2510    ) -> Task<Result<ProjectTransaction>> {
2511        self.buffer_store.update(cx, |buffer_store, cx| {
2512            buffer_store.reload_buffers(buffers, push_to_history, cx)
2513        })
2514    }
2515
2516    pub fn format(
2517        &mut self,
2518        buffers: HashSet<Model<Buffer>>,
2519        push_to_history: bool,
2520        trigger: lsp_store::FormatTrigger,
2521        target: lsp_store::FormatTarget,
2522        cx: &mut ModelContext<Project>,
2523    ) -> Task<anyhow::Result<ProjectTransaction>> {
2524        self.lsp_store.update(cx, |lsp_store, cx| {
2525            lsp_store.format(buffers, push_to_history, trigger, target, cx)
2526        })
2527    }
2528
2529    #[inline(never)]
2530    fn definition_impl(
2531        &mut self,
2532        buffer: &Model<Buffer>,
2533        position: PointUtf16,
2534        cx: &mut ModelContext<Self>,
2535    ) -> Task<Result<Vec<LocationLink>>> {
2536        self.request_lsp(
2537            buffer.clone(),
2538            LanguageServerToQuery::Primary,
2539            GetDefinition { position },
2540            cx,
2541        )
2542    }
2543    pub fn definition<T: ToPointUtf16>(
2544        &mut self,
2545        buffer: &Model<Buffer>,
2546        position: T,
2547        cx: &mut ModelContext<Self>,
2548    ) -> Task<Result<Vec<LocationLink>>> {
2549        let position = position.to_point_utf16(buffer.read(cx));
2550        self.definition_impl(buffer, position, cx)
2551    }
2552
2553    fn declaration_impl(
2554        &mut self,
2555        buffer: &Model<Buffer>,
2556        position: PointUtf16,
2557        cx: &mut ModelContext<Self>,
2558    ) -> Task<Result<Vec<LocationLink>>> {
2559        self.request_lsp(
2560            buffer.clone(),
2561            LanguageServerToQuery::Primary,
2562            GetDeclaration { position },
2563            cx,
2564        )
2565    }
2566
2567    pub fn declaration<T: ToPointUtf16>(
2568        &mut self,
2569        buffer: &Model<Buffer>,
2570        position: T,
2571        cx: &mut ModelContext<Self>,
2572    ) -> Task<Result<Vec<LocationLink>>> {
2573        let position = position.to_point_utf16(buffer.read(cx));
2574        self.declaration_impl(buffer, position, cx)
2575    }
2576
2577    fn type_definition_impl(
2578        &mut self,
2579        buffer: &Model<Buffer>,
2580        position: PointUtf16,
2581        cx: &mut ModelContext<Self>,
2582    ) -> Task<Result<Vec<LocationLink>>> {
2583        self.request_lsp(
2584            buffer.clone(),
2585            LanguageServerToQuery::Primary,
2586            GetTypeDefinition { position },
2587            cx,
2588        )
2589    }
2590
2591    pub fn type_definition<T: ToPointUtf16>(
2592        &mut self,
2593        buffer: &Model<Buffer>,
2594        position: T,
2595        cx: &mut ModelContext<Self>,
2596    ) -> Task<Result<Vec<LocationLink>>> {
2597        let position = position.to_point_utf16(buffer.read(cx));
2598        self.type_definition_impl(buffer, position, cx)
2599    }
2600
2601    pub fn implementation<T: ToPointUtf16>(
2602        &mut self,
2603        buffer: &Model<Buffer>,
2604        position: T,
2605        cx: &mut ModelContext<Self>,
2606    ) -> Task<Result<Vec<LocationLink>>> {
2607        let position = position.to_point_utf16(buffer.read(cx));
2608        self.request_lsp(
2609            buffer.clone(),
2610            LanguageServerToQuery::Primary,
2611            GetImplementation { position },
2612            cx,
2613        )
2614    }
2615
2616    pub fn references<T: ToPointUtf16>(
2617        &mut self,
2618        buffer: &Model<Buffer>,
2619        position: T,
2620        cx: &mut ModelContext<Self>,
2621    ) -> Task<Result<Vec<Location>>> {
2622        let position = position.to_point_utf16(buffer.read(cx));
2623        self.request_lsp(
2624            buffer.clone(),
2625            LanguageServerToQuery::Primary,
2626            GetReferences { position },
2627            cx,
2628        )
2629    }
2630
2631    fn document_highlights_impl(
2632        &mut self,
2633        buffer: &Model<Buffer>,
2634        position: PointUtf16,
2635        cx: &mut ModelContext<Self>,
2636    ) -> Task<Result<Vec<DocumentHighlight>>> {
2637        self.request_lsp(
2638            buffer.clone(),
2639            LanguageServerToQuery::Primary,
2640            GetDocumentHighlights { position },
2641            cx,
2642        )
2643    }
2644
2645    pub fn document_highlights<T: ToPointUtf16>(
2646        &mut self,
2647        buffer: &Model<Buffer>,
2648        position: T,
2649        cx: &mut ModelContext<Self>,
2650    ) -> Task<Result<Vec<DocumentHighlight>>> {
2651        let position = position.to_point_utf16(buffer.read(cx));
2652        self.document_highlights_impl(buffer, position, cx)
2653    }
2654
2655    pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
2656        self.lsp_store
2657            .update(cx, |lsp_store, cx| lsp_store.symbols(query, cx))
2658    }
2659
2660    pub fn open_buffer_for_symbol(
2661        &mut self,
2662        symbol: &Symbol,
2663        cx: &mut ModelContext<Self>,
2664    ) -> Task<Result<Model<Buffer>>> {
2665        self.lsp_store.update(cx, |lsp_store, cx| {
2666            lsp_store.open_buffer_for_symbol(symbol, cx)
2667        })
2668    }
2669
2670    pub fn open_server_settings(
2671        &mut self,
2672        cx: &mut ModelContext<Self>,
2673    ) -> Task<Result<Model<Buffer>>> {
2674        let guard = self.retain_remotely_created_models(cx);
2675        let Some(ssh_client) = self.ssh_client.as_ref() else {
2676            return Task::ready(Err(anyhow!("not an ssh project")));
2677        };
2678
2679        let proto_client = ssh_client.read(cx).proto_client();
2680
2681        cx.spawn(|this, mut cx| async move {
2682            let buffer = proto_client
2683                .request(proto::OpenServerSettings {
2684                    project_id: SSH_PROJECT_ID,
2685                })
2686                .await?;
2687
2688            let buffer = this
2689                .update(&mut cx, |this, cx| {
2690                    anyhow::Ok(this.wait_for_remote_buffer(BufferId::new(buffer.buffer_id)?, cx))
2691                })??
2692                .await;
2693
2694            drop(guard);
2695            buffer
2696        })
2697    }
2698
2699    pub fn open_local_buffer_via_lsp(
2700        &mut self,
2701        abs_path: lsp::Url,
2702        language_server_id: LanguageServerId,
2703        language_server_name: LanguageServerName,
2704        cx: &mut ModelContext<Self>,
2705    ) -> Task<Result<Model<Buffer>>> {
2706        self.lsp_store.update(cx, |lsp_store, cx| {
2707            lsp_store.open_local_buffer_via_lsp(
2708                abs_path,
2709                language_server_id,
2710                language_server_name,
2711                cx,
2712            )
2713        })
2714    }
2715
2716    pub fn signature_help<T: ToPointUtf16>(
2717        &self,
2718        buffer: &Model<Buffer>,
2719        position: T,
2720        cx: &mut ModelContext<Self>,
2721    ) -> Task<Vec<SignatureHelp>> {
2722        self.lsp_store.update(cx, |lsp_store, cx| {
2723            lsp_store.signature_help(buffer, position, cx)
2724        })
2725    }
2726
2727    pub fn hover<T: ToPointUtf16>(
2728        &self,
2729        buffer: &Model<Buffer>,
2730        position: T,
2731        cx: &mut ModelContext<Self>,
2732    ) -> Task<Vec<Hover>> {
2733        let position = position.to_point_utf16(buffer.read(cx));
2734        self.lsp_store
2735            .update(cx, |lsp_store, cx| lsp_store.hover(buffer, position, cx))
2736    }
2737
2738    pub fn linked_edit(
2739        &self,
2740        buffer: &Model<Buffer>,
2741        position: Anchor,
2742        cx: &mut ModelContext<Self>,
2743    ) -> Task<Result<Vec<Range<Anchor>>>> {
2744        self.lsp_store.update(cx, |lsp_store, cx| {
2745            lsp_store.linked_edit(buffer, position, cx)
2746        })
2747    }
2748
2749    pub fn completions<T: ToOffset + ToPointUtf16>(
2750        &self,
2751        buffer: &Model<Buffer>,
2752        position: T,
2753        context: CompletionContext,
2754        cx: &mut ModelContext<Self>,
2755    ) -> Task<Result<Vec<Completion>>> {
2756        let position = position.to_point_utf16(buffer.read(cx));
2757        self.lsp_store.update(cx, |lsp_store, cx| {
2758            lsp_store.completions(buffer, position, context, cx)
2759        })
2760    }
2761
2762    pub fn resolve_completions(
2763        &self,
2764        buffer: Model<Buffer>,
2765        completion_indices: Vec<usize>,
2766        completions: Arc<RwLock<Box<[Completion]>>>,
2767        cx: &mut ModelContext<Self>,
2768    ) -> Task<Result<bool>> {
2769        self.lsp_store.update(cx, |lsp_store, cx| {
2770            lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
2771        })
2772    }
2773
2774    pub fn apply_additional_edits_for_completion(
2775        &self,
2776        buffer_handle: Model<Buffer>,
2777        completion: Completion,
2778        push_to_history: bool,
2779        cx: &mut ModelContext<Self>,
2780    ) -> Task<Result<Option<Transaction>>> {
2781        self.lsp_store.update(cx, |lsp_store, cx| {
2782            lsp_store.apply_additional_edits_for_completion(
2783                buffer_handle,
2784                completion,
2785                push_to_history,
2786                cx,
2787            )
2788        })
2789    }
2790
2791    pub fn code_actions<T: Clone + ToOffset>(
2792        &mut self,
2793        buffer_handle: &Model<Buffer>,
2794        range: Range<T>,
2795        cx: &mut ModelContext<Self>,
2796    ) -> Task<Result<Vec<CodeAction>>> {
2797        let buffer = buffer_handle.read(cx);
2798        let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
2799        self.lsp_store.update(cx, |lsp_store, cx| {
2800            lsp_store.code_actions(buffer_handle, range, cx)
2801        })
2802    }
2803
2804    pub fn apply_code_action(
2805        &self,
2806        buffer_handle: Model<Buffer>,
2807        action: CodeAction,
2808        push_to_history: bool,
2809        cx: &mut ModelContext<Self>,
2810    ) -> Task<Result<ProjectTransaction>> {
2811        self.lsp_store.update(cx, |lsp_store, cx| {
2812            lsp_store.apply_code_action(buffer_handle, action, push_to_history, cx)
2813        })
2814    }
2815
2816    fn prepare_rename_impl(
2817        &mut self,
2818        buffer: Model<Buffer>,
2819        position: PointUtf16,
2820        cx: &mut ModelContext<Self>,
2821    ) -> Task<Result<Option<Range<Anchor>>>> {
2822        self.request_lsp(
2823            buffer,
2824            LanguageServerToQuery::Primary,
2825            PrepareRename { position },
2826            cx,
2827        )
2828    }
2829    pub fn prepare_rename<T: ToPointUtf16>(
2830        &mut self,
2831        buffer: Model<Buffer>,
2832        position: T,
2833        cx: &mut ModelContext<Self>,
2834    ) -> Task<Result<Option<Range<Anchor>>>> {
2835        let position = position.to_point_utf16(buffer.read(cx));
2836        self.prepare_rename_impl(buffer, position, cx)
2837    }
2838
2839    fn perform_rename_impl(
2840        &mut self,
2841        buffer: Model<Buffer>,
2842        position: PointUtf16,
2843        new_name: String,
2844        push_to_history: bool,
2845        cx: &mut ModelContext<Self>,
2846    ) -> Task<Result<ProjectTransaction>> {
2847        let position = position.to_point_utf16(buffer.read(cx));
2848        self.request_lsp(
2849            buffer,
2850            LanguageServerToQuery::Primary,
2851            PerformRename {
2852                position,
2853                new_name,
2854                push_to_history,
2855            },
2856            cx,
2857        )
2858    }
2859
2860    pub fn perform_rename<T: ToPointUtf16>(
2861        &mut self,
2862        buffer: Model<Buffer>,
2863        position: T,
2864        new_name: String,
2865        cx: &mut ModelContext<Self>,
2866    ) -> Task<Result<ProjectTransaction>> {
2867        let position = position.to_point_utf16(buffer.read(cx));
2868        self.perform_rename_impl(buffer, position, new_name, true, cx)
2869    }
2870
2871    pub fn on_type_format<T: ToPointUtf16>(
2872        &mut self,
2873        buffer: Model<Buffer>,
2874        position: T,
2875        trigger: String,
2876        push_to_history: bool,
2877        cx: &mut ModelContext<Self>,
2878    ) -> Task<Result<Option<Transaction>>> {
2879        self.lsp_store.update(cx, |lsp_store, cx| {
2880            lsp_store.on_type_format(buffer, position, trigger, push_to_history, cx)
2881        })
2882    }
2883
2884    pub fn inlay_hints<T: ToOffset>(
2885        &mut self,
2886        buffer_handle: Model<Buffer>,
2887        range: Range<T>,
2888        cx: &mut ModelContext<Self>,
2889    ) -> Task<anyhow::Result<Vec<InlayHint>>> {
2890        let buffer = buffer_handle.read(cx);
2891        let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
2892        self.lsp_store.update(cx, |lsp_store, cx| {
2893            lsp_store.inlay_hints(buffer_handle, range, cx)
2894        })
2895    }
2896
2897    pub fn resolve_inlay_hint(
2898        &self,
2899        hint: InlayHint,
2900        buffer_handle: Model<Buffer>,
2901        server_id: LanguageServerId,
2902        cx: &mut ModelContext<Self>,
2903    ) -> Task<anyhow::Result<InlayHint>> {
2904        self.lsp_store.update(cx, |lsp_store, cx| {
2905            lsp_store.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
2906        })
2907    }
2908
2909    pub fn search(
2910        &mut self,
2911        query: SearchQuery,
2912        cx: &mut ModelContext<Self>,
2913    ) -> Receiver<SearchResult> {
2914        let (result_tx, result_rx) = smol::channel::unbounded();
2915
2916        let matching_buffers_rx = if query.is_opened_only() {
2917            self.sort_search_candidates(&query, cx)
2918        } else {
2919            self.find_search_candidate_buffers(&query, MAX_SEARCH_RESULT_FILES + 1, cx)
2920        };
2921
2922        cx.spawn(|_, cx| async move {
2923            let mut range_count = 0;
2924            let mut buffer_count = 0;
2925            let mut limit_reached = false;
2926            let query = Arc::new(query);
2927            let mut chunks = matching_buffers_rx.ready_chunks(64);
2928
2929            // Now that we know what paths match the query, we will load at most
2930            // 64 buffers at a time to avoid overwhelming the main thread. For each
2931            // opened buffer, we will spawn a background task that retrieves all the
2932            // ranges in the buffer matched by the query.
2933            'outer: while let Some(matching_buffer_chunk) = chunks.next().await {
2934                let mut chunk_results = Vec::new();
2935                for buffer in matching_buffer_chunk {
2936                    let buffer = buffer.clone();
2937                    let query = query.clone();
2938                    let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot())?;
2939                    chunk_results.push(cx.background_executor().spawn(async move {
2940                        let ranges = query
2941                            .search(&snapshot, None)
2942                            .await
2943                            .iter()
2944                            .map(|range| {
2945                                snapshot.anchor_before(range.start)
2946                                    ..snapshot.anchor_after(range.end)
2947                            })
2948                            .collect::<Vec<_>>();
2949                        anyhow::Ok((buffer, ranges))
2950                    }));
2951                }
2952
2953                let chunk_results = futures::future::join_all(chunk_results).await;
2954                for result in chunk_results {
2955                    if let Some((buffer, ranges)) = result.log_err() {
2956                        range_count += ranges.len();
2957                        buffer_count += 1;
2958                        result_tx
2959                            .send(SearchResult::Buffer { buffer, ranges })
2960                            .await?;
2961                        if buffer_count > MAX_SEARCH_RESULT_FILES
2962                            || range_count > MAX_SEARCH_RESULT_RANGES
2963                        {
2964                            limit_reached = true;
2965                            break 'outer;
2966                        }
2967                    }
2968                }
2969            }
2970
2971            if limit_reached {
2972                result_tx.send(SearchResult::LimitReached).await?;
2973            }
2974
2975            anyhow::Ok(())
2976        })
2977        .detach();
2978
2979        result_rx
2980    }
2981
2982    fn find_search_candidate_buffers(
2983        &mut self,
2984        query: &SearchQuery,
2985        limit: usize,
2986        cx: &mut ModelContext<Project>,
2987    ) -> Receiver<Model<Buffer>> {
2988        if self.is_local() {
2989            let fs = self.fs.clone();
2990            self.buffer_store.update(cx, |buffer_store, cx| {
2991                buffer_store.find_search_candidates(query, limit, fs, cx)
2992            })
2993        } else {
2994            self.find_search_candidates_remote(query, limit, cx)
2995        }
2996    }
2997
2998    fn sort_search_candidates(
2999        &mut self,
3000        search_query: &SearchQuery,
3001        cx: &mut ModelContext<Project>,
3002    ) -> Receiver<Model<Buffer>> {
3003        let worktree_store = self.worktree_store.read(cx);
3004        let mut buffers = search_query
3005            .buffers()
3006            .into_iter()
3007            .flatten()
3008            .filter(|buffer| {
3009                let b = buffer.read(cx);
3010                if let Some(file) = b.file() {
3011                    if !search_query.file_matches(file.path()) {
3012                        return false;
3013                    }
3014                    if let Some(entry) = b
3015                        .entry_id(cx)
3016                        .and_then(|entry_id| worktree_store.entry_for_id(entry_id, cx))
3017                    {
3018                        if entry.is_ignored && !search_query.include_ignored() {
3019                            return false;
3020                        }
3021                    }
3022                }
3023                true
3024            })
3025            .collect::<Vec<_>>();
3026        let (tx, rx) = smol::channel::unbounded();
3027        buffers.sort_by(|a, b| match (a.read(cx).file(), b.read(cx).file()) {
3028            (None, None) => a.read(cx).remote_id().cmp(&b.read(cx).remote_id()),
3029            (None, Some(_)) => std::cmp::Ordering::Less,
3030            (Some(_), None) => std::cmp::Ordering::Greater,
3031            (Some(a), Some(b)) => compare_paths((a.path(), true), (b.path(), true)),
3032        });
3033        for buffer in buffers {
3034            tx.send_blocking(buffer.clone()).unwrap()
3035        }
3036
3037        rx
3038    }
3039
3040    fn find_search_candidates_remote(
3041        &mut self,
3042        query: &SearchQuery,
3043        limit: usize,
3044        cx: &mut ModelContext<Project>,
3045    ) -> Receiver<Model<Buffer>> {
3046        let (tx, rx) = smol::channel::unbounded();
3047
3048        let (client, remote_id): (AnyProtoClient, _) = if let Some(ssh_client) = &self.ssh_client {
3049            (ssh_client.read(cx).proto_client(), 0)
3050        } else if let Some(remote_id) = self.remote_id() {
3051            (self.client.clone().into(), remote_id)
3052        } else {
3053            return rx;
3054        };
3055
3056        let request = client.request(proto::FindSearchCandidates {
3057            project_id: remote_id,
3058            query: Some(query.to_proto()),
3059            limit: limit as _,
3060        });
3061        let guard = self.retain_remotely_created_models(cx);
3062
3063        cx.spawn(move |this, mut cx| async move {
3064            let response = request.await?;
3065            for buffer_id in response.buffer_ids {
3066                let buffer_id = BufferId::new(buffer_id)?;
3067                let buffer = this
3068                    .update(&mut cx, |this, cx| {
3069                        this.wait_for_remote_buffer(buffer_id, cx)
3070                    })?
3071                    .await?;
3072                let _ = tx.send(buffer).await;
3073            }
3074
3075            drop(guard);
3076            anyhow::Ok(())
3077        })
3078        .detach_and_log_err(cx);
3079        rx
3080    }
3081
3082    pub fn request_lsp<R: LspCommand>(
3083        &mut self,
3084        buffer_handle: Model<Buffer>,
3085        server: LanguageServerToQuery,
3086        request: R,
3087        cx: &mut ModelContext<Self>,
3088    ) -> Task<Result<R::Response>>
3089    where
3090        <R::LspRequest as lsp::request::Request>::Result: Send,
3091        <R::LspRequest as lsp::request::Request>::Params: Send,
3092    {
3093        let guard = self.retain_remotely_created_models(cx);
3094        let task = self.lsp_store.update(cx, |lsp_store, cx| {
3095            lsp_store.request_lsp(buffer_handle, server, request, cx)
3096        });
3097        cx.spawn(|_, _| async move {
3098            let result = task.await;
3099            drop(guard);
3100            result
3101        })
3102    }
3103
3104    /// Move a worktree to a new position in the worktree order.
3105    ///
3106    /// The worktree will moved to the opposite side of the destination worktree.
3107    ///
3108    /// # Example
3109    ///
3110    /// Given the worktree order `[11, 22, 33]` and a call to move worktree `22` to `33`,
3111    /// worktree_order will be updated to produce the indexes `[11, 33, 22]`.
3112    ///
3113    /// Given the worktree order `[11, 22, 33]` and a call to move worktree `22` to `11`,
3114    /// worktree_order will be updated to produce the indexes `[22, 11, 33]`.
3115    ///
3116    /// # Errors
3117    ///
3118    /// An error will be returned if the worktree or destination worktree are not found.
3119    pub fn move_worktree(
3120        &mut self,
3121        source: WorktreeId,
3122        destination: WorktreeId,
3123        cx: &mut ModelContext<'_, Self>,
3124    ) -> Result<()> {
3125        self.worktree_store.update(cx, |worktree_store, cx| {
3126            worktree_store.move_worktree(source, destination, cx)
3127        })
3128    }
3129
3130    pub fn find_or_create_worktree(
3131        &mut self,
3132        abs_path: impl AsRef<Path>,
3133        visible: bool,
3134        cx: &mut ModelContext<Self>,
3135    ) -> Task<Result<(Model<Worktree>, PathBuf)>> {
3136        self.worktree_store.update(cx, |worktree_store, cx| {
3137            worktree_store.find_or_create_worktree(abs_path, visible, cx)
3138        })
3139    }
3140
3141    pub fn find_worktree(
3142        &self,
3143        abs_path: &Path,
3144        cx: &AppContext,
3145    ) -> Option<(Model<Worktree>, PathBuf)> {
3146        self.worktree_store.read_with(cx, |worktree_store, cx| {
3147            worktree_store.find_worktree(abs_path, cx)
3148        })
3149    }
3150
3151    pub fn is_shared(&self) -> bool {
3152        match &self.client_state {
3153            ProjectClientState::Shared { .. } => true,
3154            ProjectClientState::Local => false,
3155            ProjectClientState::Remote { in_room, .. } => *in_room,
3156        }
3157    }
3158
3159    /// Returns the resolved version of `path`, that was found in `buffer`, if it exists.
3160    pub fn resolve_existing_file_path(
3161        &self,
3162        path: &str,
3163        buffer: &Model<Buffer>,
3164        cx: &mut ModelContext<Self>,
3165    ) -> Task<Option<ResolvedPath>> {
3166        let path_buf = PathBuf::from(path);
3167        if path_buf.is_absolute() || path.starts_with("~") {
3168            self.resolve_abs_file_path(path, cx)
3169        } else {
3170            self.resolve_path_in_worktrees(path_buf, buffer, cx)
3171        }
3172    }
3173
3174    pub fn abs_file_path_exists(&self, path: &str, cx: &mut ModelContext<Self>) -> Task<bool> {
3175        let resolve_task = self.resolve_abs_file_path(path, cx);
3176        cx.background_executor().spawn(async move {
3177            let resolved_path = resolve_task.await;
3178            resolved_path.is_some()
3179        })
3180    }
3181
3182    fn resolve_abs_file_path(
3183        &self,
3184        path: &str,
3185        cx: &mut ModelContext<Self>,
3186    ) -> Task<Option<ResolvedPath>> {
3187        if self.is_local() {
3188            let expanded = PathBuf::from(shellexpand::tilde(&path).into_owned());
3189
3190            let fs = self.fs.clone();
3191            cx.background_executor().spawn(async move {
3192                let path = expanded.as_path();
3193                let exists = fs.is_file(path).await;
3194
3195                exists.then(|| ResolvedPath::AbsPath(expanded))
3196            })
3197        } else if let Some(ssh_client) = self.ssh_client.as_ref() {
3198            let request = ssh_client
3199                .read(cx)
3200                .proto_client()
3201                .request(proto::CheckFileExists {
3202                    project_id: SSH_PROJECT_ID,
3203                    path: path.to_string(),
3204                });
3205            cx.background_executor().spawn(async move {
3206                let response = request.await.log_err()?;
3207                if response.exists {
3208                    Some(ResolvedPath::AbsPath(PathBuf::from(response.path)))
3209                } else {
3210                    None
3211                }
3212            })
3213        } else {
3214            return Task::ready(None);
3215        }
3216    }
3217
3218    fn resolve_path_in_worktrees(
3219        &self,
3220        path: PathBuf,
3221        buffer: &Model<Buffer>,
3222        cx: &mut ModelContext<Self>,
3223    ) -> Task<Option<ResolvedPath>> {
3224        let mut candidates = vec![path.clone()];
3225
3226        if let Some(file) = buffer.read(cx).file() {
3227            if let Some(dir) = file.path().parent() {
3228                let joined = dir.to_path_buf().join(path);
3229                candidates.push(joined);
3230            }
3231        }
3232
3233        let worktrees = self.worktrees(cx).collect::<Vec<_>>();
3234        cx.spawn(|_, mut cx| async move {
3235            for worktree in worktrees {
3236                for candidate in candidates.iter() {
3237                    let path = worktree
3238                        .update(&mut cx, |worktree, _| {
3239                            let root_entry_path = &worktree.root_entry()?.path;
3240
3241                            let resolved = resolve_path(root_entry_path, candidate);
3242
3243                            let stripped =
3244                                resolved.strip_prefix(root_entry_path).unwrap_or(&resolved);
3245
3246                            worktree.entry_for_path(stripped).map(|entry| {
3247                                ResolvedPath::ProjectPath(ProjectPath {
3248                                    worktree_id: worktree.id(),
3249                                    path: entry.path.clone(),
3250                                })
3251                            })
3252                        })
3253                        .ok()?;
3254
3255                    if path.is_some() {
3256                        return path;
3257                    }
3258                }
3259            }
3260            None
3261        })
3262    }
3263
3264    pub fn list_directory(
3265        &self,
3266        query: String,
3267        cx: &mut ModelContext<Self>,
3268    ) -> Task<Result<Vec<PathBuf>>> {
3269        if self.is_local() {
3270            DirectoryLister::Local(self.fs.clone()).list_directory(query, cx)
3271        } else if let Some(session) = self.ssh_client.as_ref() {
3272            let request = proto::ListRemoteDirectory {
3273                dev_server_id: SSH_PROJECT_ID,
3274                path: query,
3275            };
3276
3277            let response = session.read(cx).proto_client().request(request);
3278            cx.background_executor().spawn(async move {
3279                let response = response.await?;
3280                Ok(response.entries.into_iter().map(PathBuf::from).collect())
3281            })
3282        } else if let Some(dev_server) = self.dev_server_project_id().and_then(|id| {
3283            dev_server_projects::Store::global(cx)
3284                .read(cx)
3285                .dev_server_for_project(id)
3286        }) {
3287            let request = proto::ListRemoteDirectory {
3288                dev_server_id: dev_server.id.0,
3289                path: query,
3290            };
3291            let response = self.client.request(request);
3292            cx.background_executor().spawn(async move {
3293                let response = response.await?;
3294                Ok(response.entries.into_iter().map(PathBuf::from).collect())
3295            })
3296        } else {
3297            Task::ready(Err(anyhow!("cannot list directory in remote project")))
3298        }
3299    }
3300
3301    pub fn create_worktree(
3302        &mut self,
3303        abs_path: impl AsRef<Path>,
3304        visible: bool,
3305        cx: &mut ModelContext<Self>,
3306    ) -> Task<Result<Model<Worktree>>> {
3307        self.worktree_store.update(cx, |worktree_store, cx| {
3308            worktree_store.create_worktree(abs_path, visible, cx)
3309        })
3310    }
3311
3312    pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
3313        self.worktree_store.update(cx, |worktree_store, cx| {
3314            worktree_store.remove_worktree(id_to_remove, cx);
3315        });
3316    }
3317
3318    fn add_worktree(&mut self, worktree: &Model<Worktree>, cx: &mut ModelContext<Self>) {
3319        self.worktree_store.update(cx, |worktree_store, cx| {
3320            worktree_store.add(worktree, cx);
3321        });
3322    }
3323
3324    pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
3325        let new_active_entry = entry.and_then(|project_path| {
3326            let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
3327            let entry = worktree.read(cx).entry_for_path(project_path.path)?;
3328            Some(entry.id)
3329        });
3330        if new_active_entry != self.active_entry {
3331            self.active_entry = new_active_entry;
3332            self.lsp_store.update(cx, |lsp_store, _| {
3333                lsp_store.set_active_entry(new_active_entry);
3334            });
3335            cx.emit(Event::ActiveEntryChanged(new_active_entry));
3336        }
3337    }
3338
3339    pub fn language_servers_running_disk_based_diagnostics<'a>(
3340        &'a self,
3341        cx: &'a AppContext,
3342    ) -> impl Iterator<Item = LanguageServerId> + 'a {
3343        self.lsp_store
3344            .read(cx)
3345            .language_servers_running_disk_based_diagnostics()
3346    }
3347
3348    pub fn diagnostic_summary(&self, include_ignored: bool, cx: &AppContext) -> DiagnosticSummary {
3349        let mut summary = DiagnosticSummary::default();
3350        for (_, _, path_summary) in self.diagnostic_summaries(include_ignored, cx) {
3351            summary.error_count += path_summary.error_count;
3352            summary.warning_count += path_summary.warning_count;
3353        }
3354        summary
3355    }
3356
3357    pub fn diagnostic_summaries<'a>(
3358        &'a self,
3359        include_ignored: bool,
3360        cx: &'a AppContext,
3361    ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
3362        self.lsp_store
3363            .read(cx)
3364            .diagnostic_summaries(include_ignored, cx)
3365    }
3366
3367    pub fn active_entry(&self) -> Option<ProjectEntryId> {
3368        self.active_entry
3369    }
3370
3371    pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
3372        self.worktree_store.read(cx).entry_for_path(path, cx)
3373    }
3374
3375    pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
3376        let worktree = self.worktree_for_entry(entry_id, cx)?;
3377        let worktree = worktree.read(cx);
3378        let worktree_id = worktree.id();
3379        let path = worktree.entry_for_id(entry_id)?.path.clone();
3380        Some(ProjectPath { worktree_id, path })
3381    }
3382
3383    pub fn absolute_path(&self, project_path: &ProjectPath, cx: &AppContext) -> Option<PathBuf> {
3384        let workspace_root = self
3385            .worktree_for_id(project_path.worktree_id, cx)?
3386            .read(cx)
3387            .abs_path();
3388        let project_path = project_path.path.as_ref();
3389
3390        Some(if project_path == Path::new("") {
3391            workspace_root.to_path_buf()
3392        } else {
3393            workspace_root.join(project_path)
3394        })
3395    }
3396
3397    /// Attempts to find a `ProjectPath` corresponding to the given path. If the path
3398    /// is a *full path*, meaning it starts with the root name of a worktree, we'll locate
3399    /// it in that worktree. Otherwise, we'll attempt to find it as a relative path in
3400    /// the first visible worktree that has an entry for that relative path.
3401    ///
3402    /// We use this to resolve edit steps, when there's a chance an LLM may omit the workree
3403    /// root name from paths.
3404    ///
3405    /// # Arguments
3406    ///
3407    /// * `path` - A full path that starts with a worktree root name, or alternatively a
3408    ///            relative path within a visible worktree.
3409    /// * `cx` - A reference to the `AppContext`.
3410    ///
3411    /// # Returns
3412    ///
3413    /// Returns `Some(ProjectPath)` if a matching worktree is found, otherwise `None`.
3414    pub fn find_project_path(&self, path: &Path, cx: &AppContext) -> Option<ProjectPath> {
3415        let worktree_store = self.worktree_store.read(cx);
3416
3417        for worktree in worktree_store.visible_worktrees(cx) {
3418            let worktree_root_name = worktree.read(cx).root_name();
3419            if let Ok(relative_path) = path.strip_prefix(worktree_root_name) {
3420                return Some(ProjectPath {
3421                    worktree_id: worktree.read(cx).id(),
3422                    path: relative_path.into(),
3423                });
3424            }
3425        }
3426
3427        for worktree in worktree_store.visible_worktrees(cx) {
3428            let worktree = worktree.read(cx);
3429            if let Some(entry) = worktree.entry_for_path(path) {
3430                return Some(ProjectPath {
3431                    worktree_id: worktree.id(),
3432                    path: entry.path.clone(),
3433                });
3434            }
3435        }
3436
3437        None
3438    }
3439
3440    pub fn get_workspace_root(
3441        &self,
3442        project_path: &ProjectPath,
3443        cx: &AppContext,
3444    ) -> Option<PathBuf> {
3445        Some(
3446            self.worktree_for_id(project_path.worktree_id, cx)?
3447                .read(cx)
3448                .abs_path()
3449                .to_path_buf(),
3450        )
3451    }
3452
3453    pub fn get_repo(
3454        &self,
3455        project_path: &ProjectPath,
3456        cx: &AppContext,
3457    ) -> Option<Arc<dyn GitRepository>> {
3458        self.worktree_for_id(project_path.worktree_id, cx)?
3459            .read(cx)
3460            .as_local()?
3461            .local_git_repo(&project_path.path)
3462    }
3463
3464    pub fn get_first_worktree_root_repo(&self, cx: &AppContext) -> Option<Arc<dyn GitRepository>> {
3465        let worktree = self.visible_worktrees(cx).next()?.read(cx).as_local()?;
3466        let root_entry = worktree.root_git_entry()?;
3467        worktree.get_local_repo(&root_entry)?.repo().clone().into()
3468    }
3469
3470    pub fn blame_buffer(
3471        &self,
3472        buffer: &Model<Buffer>,
3473        version: Option<clock::Global>,
3474        cx: &AppContext,
3475    ) -> Task<Result<Blame>> {
3476        self.buffer_store.read(cx).blame_buffer(buffer, version, cx)
3477    }
3478
3479    pub fn get_permalink_to_line(
3480        &self,
3481        buffer: &Model<Buffer>,
3482        selection: Range<u32>,
3483        cx: &AppContext,
3484    ) -> Task<Result<url::Url>> {
3485        self.buffer_store
3486            .read(cx)
3487            .get_permalink_to_line(buffer, selection, cx)
3488    }
3489
3490    // RPC message handlers
3491
3492    async fn handle_unshare_project(
3493        this: Model<Self>,
3494        _: TypedEnvelope<proto::UnshareProject>,
3495        mut cx: AsyncAppContext,
3496    ) -> Result<()> {
3497        this.update(&mut cx, |this, cx| {
3498            if this.is_local() || this.is_via_ssh() {
3499                this.unshare(cx)?;
3500            } else {
3501                this.disconnected_from_host(cx);
3502            }
3503            Ok(())
3504        })?
3505    }
3506
3507    async fn handle_add_collaborator(
3508        this: Model<Self>,
3509        mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
3510        mut cx: AsyncAppContext,
3511    ) -> Result<()> {
3512        let collaborator = envelope
3513            .payload
3514            .collaborator
3515            .take()
3516            .ok_or_else(|| anyhow!("empty collaborator"))?;
3517
3518        let collaborator = Collaborator::from_proto(collaborator)?;
3519        this.update(&mut cx, |this, cx| {
3520            this.buffer_store.update(cx, |buffer_store, _| {
3521                buffer_store.forget_shared_buffers_for(&collaborator.peer_id);
3522            });
3523            cx.emit(Event::CollaboratorJoined(collaborator.peer_id));
3524            this.collaborators
3525                .insert(collaborator.peer_id, collaborator);
3526            cx.notify();
3527        })?;
3528
3529        Ok(())
3530    }
3531
3532    async fn handle_update_project_collaborator(
3533        this: Model<Self>,
3534        envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
3535        mut cx: AsyncAppContext,
3536    ) -> Result<()> {
3537        let old_peer_id = envelope
3538            .payload
3539            .old_peer_id
3540            .ok_or_else(|| anyhow!("missing old peer id"))?;
3541        let new_peer_id = envelope
3542            .payload
3543            .new_peer_id
3544            .ok_or_else(|| anyhow!("missing new peer id"))?;
3545        this.update(&mut cx, |this, cx| {
3546            let collaborator = this
3547                .collaborators
3548                .remove(&old_peer_id)
3549                .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
3550            let is_host = collaborator.replica_id == 0;
3551            this.collaborators.insert(new_peer_id, collaborator);
3552
3553            log::info!("peer {} became {}", old_peer_id, new_peer_id,);
3554            this.buffer_store.update(cx, |buffer_store, _| {
3555                buffer_store.update_peer_id(&old_peer_id, new_peer_id)
3556            });
3557
3558            if is_host {
3559                this.buffer_store
3560                    .update(cx, |buffer_store, _| buffer_store.discard_incomplete());
3561                this.enqueue_buffer_ordered_message(BufferOrderedMessage::Resync)
3562                    .unwrap();
3563                cx.emit(Event::HostReshared);
3564            }
3565
3566            cx.emit(Event::CollaboratorUpdated {
3567                old_peer_id,
3568                new_peer_id,
3569            });
3570            cx.notify();
3571            Ok(())
3572        })?
3573    }
3574
3575    async fn handle_remove_collaborator(
3576        this: Model<Self>,
3577        envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
3578        mut cx: AsyncAppContext,
3579    ) -> Result<()> {
3580        this.update(&mut cx, |this, cx| {
3581            let peer_id = envelope
3582                .payload
3583                .peer_id
3584                .ok_or_else(|| anyhow!("invalid peer id"))?;
3585            let replica_id = this
3586                .collaborators
3587                .remove(&peer_id)
3588                .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
3589                .replica_id;
3590            this.buffer_store.update(cx, |buffer_store, cx| {
3591                buffer_store.forget_shared_buffers_for(&peer_id);
3592                for buffer in buffer_store.buffers() {
3593                    buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
3594                }
3595            });
3596
3597            cx.emit(Event::CollaboratorLeft(peer_id));
3598            cx.notify();
3599            Ok(())
3600        })?
3601    }
3602
3603    async fn handle_update_project(
3604        this: Model<Self>,
3605        envelope: TypedEnvelope<proto::UpdateProject>,
3606        mut cx: AsyncAppContext,
3607    ) -> Result<()> {
3608        this.update(&mut cx, |this, cx| {
3609            // Don't handle messages that were sent before the response to us joining the project
3610            if envelope.message_id > this.join_project_response_message_id {
3611                this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
3612            }
3613            Ok(())
3614        })?
3615    }
3616
3617    async fn handle_toast(
3618        this: Model<Self>,
3619        envelope: TypedEnvelope<proto::Toast>,
3620        mut cx: AsyncAppContext,
3621    ) -> Result<()> {
3622        this.update(&mut cx, |_, cx| {
3623            cx.emit(Event::Toast {
3624                notification_id: envelope.payload.notification_id.into(),
3625                message: envelope.payload.message,
3626            });
3627            Ok(())
3628        })?
3629    }
3630
3631    async fn handle_language_server_prompt_request(
3632        this: Model<Self>,
3633        envelope: TypedEnvelope<proto::LanguageServerPromptRequest>,
3634        mut cx: AsyncAppContext,
3635    ) -> Result<proto::LanguageServerPromptResponse> {
3636        let (tx, mut rx) = smol::channel::bounded(1);
3637        let actions: Vec<_> = envelope
3638            .payload
3639            .actions
3640            .into_iter()
3641            .map(|action| MessageActionItem {
3642                title: action,
3643                properties: Default::default(),
3644            })
3645            .collect();
3646        this.update(&mut cx, |_, cx| {
3647            cx.emit(Event::LanguageServerPrompt(LanguageServerPromptRequest {
3648                level: proto_to_prompt(envelope.payload.level.context("Invalid prompt level")?),
3649                message: envelope.payload.message,
3650                actions: actions.clone(),
3651                lsp_name: envelope.payload.lsp_name,
3652                response_channel: tx,
3653            }));
3654
3655            anyhow::Ok(())
3656        })??;
3657
3658        let answer = rx.next().await;
3659
3660        Ok(LanguageServerPromptResponse {
3661            action_response: answer.and_then(|answer| {
3662                actions
3663                    .iter()
3664                    .position(|action| *action == answer)
3665                    .map(|index| index as u64)
3666            }),
3667        })
3668    }
3669
3670    async fn handle_hide_toast(
3671        this: Model<Self>,
3672        envelope: TypedEnvelope<proto::HideToast>,
3673        mut cx: AsyncAppContext,
3674    ) -> Result<()> {
3675        this.update(&mut cx, |_, cx| {
3676            cx.emit(Event::HideToast {
3677                notification_id: envelope.payload.notification_id.into(),
3678            });
3679            Ok(())
3680        })?
3681    }
3682
3683    // Collab sends UpdateWorktree protos as messages
3684    async fn handle_update_worktree(
3685        this: Model<Self>,
3686        envelope: TypedEnvelope<proto::UpdateWorktree>,
3687        mut cx: AsyncAppContext,
3688    ) -> Result<()> {
3689        this.update(&mut cx, |this, cx| {
3690            let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
3691            if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
3692                worktree.update(cx, |worktree, _| {
3693                    let worktree = worktree.as_remote_mut().unwrap();
3694                    worktree.update_from_remote(envelope.payload);
3695                });
3696            }
3697            Ok(())
3698        })?
3699    }
3700
3701    async fn handle_update_buffer(
3702        this: Model<Self>,
3703        envelope: TypedEnvelope<proto::UpdateBuffer>,
3704        cx: AsyncAppContext,
3705    ) -> Result<proto::Ack> {
3706        let buffer_store = this.read_with(&cx, |this, cx| {
3707            if let Some(ssh) = &this.ssh_client {
3708                let mut payload = envelope.payload.clone();
3709                payload.project_id = SSH_PROJECT_ID;
3710                cx.background_executor()
3711                    .spawn(ssh.read(cx).proto_client().request(payload))
3712                    .detach_and_log_err(cx);
3713            }
3714            this.buffer_store.clone()
3715        })?;
3716        BufferStore::handle_update_buffer(buffer_store, envelope, cx).await
3717    }
3718
3719    fn retain_remotely_created_models(
3720        &mut self,
3721        cx: &mut ModelContext<Self>,
3722    ) -> RemotelyCreatedModelGuard {
3723        {
3724            let mut remotely_create_models = self.remotely_created_models.lock();
3725            if remotely_create_models.retain_count == 0 {
3726                remotely_create_models.buffers = self.buffer_store.read(cx).buffers().collect();
3727                remotely_create_models.worktrees =
3728                    self.worktree_store.read(cx).worktrees().collect();
3729            }
3730            remotely_create_models.retain_count += 1;
3731        }
3732        RemotelyCreatedModelGuard {
3733            remote_models: Arc::downgrade(&self.remotely_created_models),
3734        }
3735    }
3736
3737    async fn handle_create_buffer_for_peer(
3738        this: Model<Self>,
3739        envelope: TypedEnvelope<proto::CreateBufferForPeer>,
3740        mut cx: AsyncAppContext,
3741    ) -> Result<()> {
3742        this.update(&mut cx, |this, cx| {
3743            this.buffer_store.update(cx, |buffer_store, cx| {
3744                buffer_store.handle_create_buffer_for_peer(
3745                    envelope,
3746                    this.replica_id(),
3747                    this.capability(),
3748                    cx,
3749                )
3750            })
3751        })?
3752    }
3753
3754    async fn handle_synchronize_buffers(
3755        this: Model<Self>,
3756        envelope: TypedEnvelope<proto::SynchronizeBuffers>,
3757        mut cx: AsyncAppContext,
3758    ) -> Result<proto::SynchronizeBuffersResponse> {
3759        let response = this.update(&mut cx, |this, cx| {
3760            let client = this.client.clone();
3761            this.buffer_store.update(cx, |this, cx| {
3762                this.handle_synchronize_buffers(envelope, cx, client)
3763            })
3764        })??;
3765
3766        Ok(response)
3767    }
3768
3769    async fn handle_search_candidate_buffers(
3770        this: Model<Self>,
3771        envelope: TypedEnvelope<proto::FindSearchCandidates>,
3772        mut cx: AsyncAppContext,
3773    ) -> Result<proto::FindSearchCandidatesResponse> {
3774        let peer_id = envelope.original_sender_id()?;
3775        let message = envelope.payload;
3776        let query = SearchQuery::from_proto(
3777            message
3778                .query
3779                .ok_or_else(|| anyhow!("missing query field"))?,
3780        )?;
3781        let mut results = this.update(&mut cx, |this, cx| {
3782            this.find_search_candidate_buffers(&query, message.limit as _, cx)
3783        })?;
3784
3785        let mut response = proto::FindSearchCandidatesResponse {
3786            buffer_ids: Vec::new(),
3787        };
3788
3789        while let Some(buffer) = results.next().await {
3790            this.update(&mut cx, |this, cx| {
3791                let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
3792                response.buffer_ids.push(buffer_id.to_proto());
3793            })?;
3794        }
3795
3796        Ok(response)
3797    }
3798
3799    async fn handle_open_buffer_by_id(
3800        this: Model<Self>,
3801        envelope: TypedEnvelope<proto::OpenBufferById>,
3802        mut cx: AsyncAppContext,
3803    ) -> Result<proto::OpenBufferResponse> {
3804        let peer_id = envelope.original_sender_id()?;
3805        let buffer_id = BufferId::new(envelope.payload.id)?;
3806        let buffer = this
3807            .update(&mut cx, |this, cx| this.open_buffer_by_id(buffer_id, cx))?
3808            .await?;
3809        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
3810    }
3811
3812    async fn handle_open_buffer_by_path(
3813        this: Model<Self>,
3814        envelope: TypedEnvelope<proto::OpenBufferByPath>,
3815        mut cx: AsyncAppContext,
3816    ) -> Result<proto::OpenBufferResponse> {
3817        let peer_id = envelope.original_sender_id()?;
3818        let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
3819        let open_buffer = this.update(&mut cx, |this, cx| {
3820            this.open_buffer(
3821                ProjectPath {
3822                    worktree_id,
3823                    path: PathBuf::from(envelope.payload.path).into(),
3824                },
3825                cx,
3826            )
3827        })?;
3828
3829        let buffer = open_buffer.await?;
3830        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
3831    }
3832
3833    async fn handle_open_new_buffer(
3834        this: Model<Self>,
3835        envelope: TypedEnvelope<proto::OpenNewBuffer>,
3836        mut cx: AsyncAppContext,
3837    ) -> Result<proto::OpenBufferResponse> {
3838        let buffer = this
3839            .update(&mut cx, |this, cx| this.create_buffer(cx))?
3840            .await?;
3841        let peer_id = envelope.original_sender_id()?;
3842
3843        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
3844    }
3845
3846    fn respond_to_open_buffer_request(
3847        this: Model<Self>,
3848        buffer: Model<Buffer>,
3849        peer_id: proto::PeerId,
3850        cx: &mut AsyncAppContext,
3851    ) -> Result<proto::OpenBufferResponse> {
3852        this.update(cx, |this, cx| {
3853            let is_private = buffer
3854                .read(cx)
3855                .file()
3856                .map(|f| f.is_private())
3857                .unwrap_or_default();
3858            if is_private {
3859                Err(anyhow!(ErrorCode::UnsharedItem))
3860            } else {
3861                Ok(proto::OpenBufferResponse {
3862                    buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx).into(),
3863                })
3864            }
3865        })?
3866    }
3867
3868    fn create_buffer_for_peer(
3869        &mut self,
3870        buffer: &Model<Buffer>,
3871        peer_id: proto::PeerId,
3872        cx: &mut AppContext,
3873    ) -> BufferId {
3874        self.buffer_store
3875            .update(cx, |buffer_store, cx| {
3876                buffer_store.create_buffer_for_peer(buffer, peer_id, cx)
3877            })
3878            .detach_and_log_err(cx);
3879        buffer.read(cx).remote_id()
3880    }
3881
3882    fn wait_for_remote_buffer(
3883        &mut self,
3884        id: BufferId,
3885        cx: &mut ModelContext<Self>,
3886    ) -> Task<Result<Model<Buffer>>> {
3887        self.buffer_store.update(cx, |buffer_store, cx| {
3888            buffer_store.wait_for_remote_buffer(id, cx)
3889        })
3890    }
3891
3892    fn synchronize_remote_buffers(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
3893        let project_id = match self.client_state {
3894            ProjectClientState::Remote {
3895                sharing_has_stopped,
3896                remote_id,
3897                ..
3898            } => {
3899                if sharing_has_stopped {
3900                    return Task::ready(Err(anyhow!(
3901                        "can't synchronize remote buffers on a readonly project"
3902                    )));
3903                } else {
3904                    remote_id
3905                }
3906            }
3907            ProjectClientState::Shared { .. } | ProjectClientState::Local => {
3908                return Task::ready(Err(anyhow!(
3909                    "can't synchronize remote buffers on a local project"
3910                )))
3911            }
3912        };
3913
3914        let client = self.client.clone();
3915        cx.spawn(move |this, mut cx| async move {
3916            let (buffers, incomplete_buffer_ids) = this.update(&mut cx, |this, cx| {
3917                this.buffer_store.read(cx).buffer_version_info(cx)
3918            })?;
3919            let response = client
3920                .request(proto::SynchronizeBuffers {
3921                    project_id,
3922                    buffers,
3923                })
3924                .await?;
3925
3926            let send_updates_for_buffers = this.update(&mut cx, |this, cx| {
3927                response
3928                    .buffers
3929                    .into_iter()
3930                    .map(|buffer| {
3931                        let client = client.clone();
3932                        let buffer_id = match BufferId::new(buffer.id) {
3933                            Ok(id) => id,
3934                            Err(e) => {
3935                                return Task::ready(Err(e));
3936                            }
3937                        };
3938                        let remote_version = language::proto::deserialize_version(&buffer.version);
3939                        if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
3940                            let operations =
3941                                buffer.read(cx).serialize_ops(Some(remote_version), cx);
3942                            cx.background_executor().spawn(async move {
3943                                let operations = operations.await;
3944                                for chunk in split_operations(operations) {
3945                                    client
3946                                        .request(proto::UpdateBuffer {
3947                                            project_id,
3948                                            buffer_id: buffer_id.into(),
3949                                            operations: chunk,
3950                                        })
3951                                        .await?;
3952                                }
3953                                anyhow::Ok(())
3954                            })
3955                        } else {
3956                            Task::ready(Ok(()))
3957                        }
3958                    })
3959                    .collect::<Vec<_>>()
3960            })?;
3961
3962            // Any incomplete buffers have open requests waiting. Request that the host sends
3963            // creates these buffers for us again to unblock any waiting futures.
3964            for id in incomplete_buffer_ids {
3965                cx.background_executor()
3966                    .spawn(client.request(proto::OpenBufferById {
3967                        project_id,
3968                        id: id.into(),
3969                    }))
3970                    .detach();
3971            }
3972
3973            futures::future::join_all(send_updates_for_buffers)
3974                .await
3975                .into_iter()
3976                .collect()
3977        })
3978    }
3979
3980    pub fn worktree_metadata_protos(&self, cx: &AppContext) -> Vec<proto::WorktreeMetadata> {
3981        self.worktree_store.read(cx).worktree_metadata_protos(cx)
3982    }
3983
3984    fn set_worktrees_from_proto(
3985        &mut self,
3986        worktrees: Vec<proto::WorktreeMetadata>,
3987        cx: &mut ModelContext<Project>,
3988    ) -> Result<()> {
3989        cx.notify();
3990        self.worktree_store.update(cx, |worktree_store, cx| {
3991            worktree_store.set_worktrees_from_proto(worktrees, self.replica_id(), cx)
3992        })
3993    }
3994
3995    fn set_collaborators_from_proto(
3996        &mut self,
3997        messages: Vec<proto::Collaborator>,
3998        cx: &mut ModelContext<Self>,
3999    ) -> Result<()> {
4000        let mut collaborators = HashMap::default();
4001        for message in messages {
4002            let collaborator = Collaborator::from_proto(message)?;
4003            collaborators.insert(collaborator.peer_id, collaborator);
4004        }
4005        for old_peer_id in self.collaborators.keys() {
4006            if !collaborators.contains_key(old_peer_id) {
4007                cx.emit(Event::CollaboratorLeft(*old_peer_id));
4008            }
4009        }
4010        self.collaborators = collaborators;
4011        Ok(())
4012    }
4013
4014    pub fn language_servers<'a>(
4015        &'a self,
4016        cx: &'a AppContext,
4017    ) -> impl 'a + Iterator<Item = (LanguageServerId, LanguageServerName, WorktreeId)> {
4018        self.lsp_store.read(cx).language_servers()
4019    }
4020
4021    pub fn supplementary_language_servers<'a>(
4022        &'a self,
4023        cx: &'a AppContext,
4024    ) -> impl 'a + Iterator<Item = (LanguageServerId, LanguageServerName)> {
4025        self.lsp_store.read(cx).supplementary_language_servers()
4026    }
4027
4028    pub fn language_server_for_id(
4029        &self,
4030        id: LanguageServerId,
4031        cx: &AppContext,
4032    ) -> Option<Arc<LanguageServer>> {
4033        self.lsp_store.read(cx).language_server_for_id(id)
4034    }
4035
4036    pub fn language_servers_for_buffer<'a>(
4037        &'a self,
4038        buffer: &'a Buffer,
4039        cx: &'a AppContext,
4040    ) -> impl Iterator<Item = (&'a Arc<CachedLspAdapter>, &'a Arc<LanguageServer>)> {
4041        self.lsp_store
4042            .read(cx)
4043            .language_servers_for_buffer(buffer, cx)
4044    }
4045}
4046
4047fn deserialize_code_actions(code_actions: &HashMap<String, bool>) -> Vec<lsp::CodeActionKind> {
4048    code_actions
4049        .iter()
4050        .flat_map(|(kind, enabled)| {
4051            if *enabled {
4052                Some(kind.clone().into())
4053            } else {
4054                None
4055            }
4056        })
4057        .collect()
4058}
4059
4060pub struct PathMatchCandidateSet {
4061    pub snapshot: Snapshot,
4062    pub include_ignored: bool,
4063    pub include_root_name: bool,
4064    pub candidates: Candidates,
4065}
4066
4067pub enum Candidates {
4068    /// Only consider directories.
4069    Directories,
4070    /// Only consider files.
4071    Files,
4072    /// Consider directories and files.
4073    Entries,
4074}
4075
4076impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
4077    type Candidates = PathMatchCandidateSetIter<'a>;
4078
4079    fn id(&self) -> usize {
4080        self.snapshot.id().to_usize()
4081    }
4082
4083    fn len(&self) -> usize {
4084        match self.candidates {
4085            Candidates::Files => {
4086                if self.include_ignored {
4087                    self.snapshot.file_count()
4088                } else {
4089                    self.snapshot.visible_file_count()
4090                }
4091            }
4092
4093            Candidates::Directories => {
4094                if self.include_ignored {
4095                    self.snapshot.dir_count()
4096                } else {
4097                    self.snapshot.visible_dir_count()
4098                }
4099            }
4100
4101            Candidates::Entries => {
4102                if self.include_ignored {
4103                    self.snapshot.entry_count()
4104                } else {
4105                    self.snapshot.visible_entry_count()
4106                }
4107            }
4108        }
4109    }
4110
4111    fn prefix(&self) -> Arc<str> {
4112        if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
4113            self.snapshot.root_name().into()
4114        } else if self.include_root_name {
4115            format!("{}{}", self.snapshot.root_name(), std::path::MAIN_SEPARATOR).into()
4116        } else {
4117            Arc::default()
4118        }
4119    }
4120
4121    fn candidates(&'a self, start: usize) -> Self::Candidates {
4122        PathMatchCandidateSetIter {
4123            traversal: match self.candidates {
4124                Candidates::Directories => self.snapshot.directories(self.include_ignored, start),
4125                Candidates::Files => self.snapshot.files(self.include_ignored, start),
4126                Candidates::Entries => self.snapshot.entries(self.include_ignored, start),
4127            },
4128        }
4129    }
4130}
4131
4132pub struct PathMatchCandidateSetIter<'a> {
4133    traversal: Traversal<'a>,
4134}
4135
4136impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
4137    type Item = fuzzy::PathMatchCandidate<'a>;
4138
4139    fn next(&mut self) -> Option<Self::Item> {
4140        self.traversal
4141            .next()
4142            .map(|entry| fuzzy::PathMatchCandidate {
4143                is_dir: entry.kind.is_dir(),
4144                path: &entry.path,
4145                char_bag: entry.char_bag,
4146            })
4147    }
4148}
4149
4150impl EventEmitter<Event> for Project {}
4151
4152impl<'a> From<&'a ProjectPath> for SettingsLocation<'a> {
4153    fn from(val: &'a ProjectPath) -> Self {
4154        SettingsLocation {
4155            worktree_id: val.worktree_id,
4156            path: val.path.as_ref(),
4157        }
4158    }
4159}
4160
4161impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
4162    fn from((worktree_id, path): (WorktreeId, P)) -> Self {
4163        Self {
4164            worktree_id,
4165            path: path.as_ref().into(),
4166        }
4167    }
4168}
4169
4170pub fn relativize_path(base: &Path, path: &Path) -> PathBuf {
4171    let mut path_components = path.components();
4172    let mut base_components = base.components();
4173    let mut components: Vec<Component> = Vec::new();
4174    loop {
4175        match (path_components.next(), base_components.next()) {
4176            (None, None) => break,
4177            (Some(a), None) => {
4178                components.push(a);
4179                components.extend(path_components.by_ref());
4180                break;
4181            }
4182            (None, _) => components.push(Component::ParentDir),
4183            (Some(a), Some(b)) if components.is_empty() && a == b => (),
4184            (Some(a), Some(Component::CurDir)) => components.push(a),
4185            (Some(a), Some(_)) => {
4186                components.push(Component::ParentDir);
4187                for _ in base_components {
4188                    components.push(Component::ParentDir);
4189                }
4190                components.push(a);
4191                components.extend(path_components.by_ref());
4192                break;
4193            }
4194        }
4195    }
4196    components.iter().map(|c| c.as_os_str()).collect()
4197}
4198
4199fn resolve_path(base: &Path, path: &Path) -> PathBuf {
4200    let mut result = base.to_path_buf();
4201    for component in path.components() {
4202        match component {
4203            Component::ParentDir => {
4204                result.pop();
4205            }
4206            Component::CurDir => (),
4207            _ => result.push(component),
4208        }
4209    }
4210    result
4211}
4212
4213/// ResolvedPath is a path that has been resolved to either a ProjectPath
4214/// or an AbsPath and that *exists*.
4215#[derive(Debug, Clone)]
4216pub enum ResolvedPath {
4217    ProjectPath(ProjectPath),
4218    AbsPath(PathBuf),
4219}
4220
4221impl ResolvedPath {
4222    pub fn abs_path(&self) -> Option<&Path> {
4223        match self {
4224            Self::AbsPath(path) => Some(path.as_path()),
4225            _ => None,
4226        }
4227    }
4228
4229    pub fn project_path(&self) -> Option<&ProjectPath> {
4230        match self {
4231            Self::ProjectPath(path) => Some(&path),
4232            _ => None,
4233        }
4234    }
4235}
4236
4237impl Item for Buffer {
4238    fn try_open(
4239        project: &Model<Project>,
4240        path: &ProjectPath,
4241        cx: &mut AppContext,
4242    ) -> Option<Task<Result<Model<Self>>>> {
4243        Some(project.update(cx, |project, cx| project.open_buffer(path.clone(), cx)))
4244    }
4245
4246    fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
4247        File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
4248    }
4249
4250    fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
4251        File::from_dyn(self.file()).map(|file| ProjectPath {
4252            worktree_id: file.worktree_id(cx),
4253            path: file.path().clone(),
4254        })
4255    }
4256}
4257
4258impl Completion {
4259    /// A key that can be used to sort completions when displaying
4260    /// them to the user.
4261    pub fn sort_key(&self) -> (usize, &str) {
4262        let kind_key = match self.lsp_completion.kind {
4263            Some(lsp::CompletionItemKind::KEYWORD) => 0,
4264            Some(lsp::CompletionItemKind::VARIABLE) => 1,
4265            _ => 2,
4266        };
4267        (kind_key, &self.label.text[self.label.filter_range.clone()])
4268    }
4269
4270    /// Whether this completion is a snippet.
4271    pub fn is_snippet(&self) -> bool {
4272        self.lsp_completion.insert_text_format == Some(lsp::InsertTextFormat::SNIPPET)
4273    }
4274
4275    /// Returns the corresponding color for this completion.
4276    ///
4277    /// Will return `None` if this completion's kind is not [`CompletionItemKind::COLOR`].
4278    pub fn color(&self) -> Option<Hsla> {
4279        match self.lsp_completion.kind {
4280            Some(CompletionItemKind::COLOR) => color_extractor::extract_color(&self.lsp_completion),
4281            _ => None,
4282        }
4283    }
4284}
4285
4286#[derive(Debug)]
4287pub struct NoRepositoryError {}
4288
4289impl std::fmt::Display for NoRepositoryError {
4290    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
4291        write!(f, "no git repository for worktree found")
4292    }
4293}
4294
4295impl std::error::Error for NoRepositoryError {}
4296
4297pub fn sort_worktree_entries(entries: &mut [Entry]) {
4298    entries.sort_by(|entry_a, entry_b| {
4299        compare_paths(
4300            (&entry_a.path, entry_a.is_file()),
4301            (&entry_b.path, entry_b.is_file()),
4302        )
4303    });
4304}
4305
4306fn proto_to_prompt(level: proto::language_server_prompt_request::Level) -> gpui::PromptLevel {
4307    match level {
4308        proto::language_server_prompt_request::Level::Info(_) => gpui::PromptLevel::Info,
4309        proto::language_server_prompt_request::Level::Warning(_) => gpui::PromptLevel::Warning,
4310        proto::language_server_prompt_request::Level::Critical(_) => gpui::PromptLevel::Critical,
4311    }
4312}