project.rs

   1pub mod buffer_store;
   2mod color_extractor;
   3pub mod connection_manager;
   4pub mod debounced_delay;
   5pub mod debugger;
   6pub mod git_store;
   7pub mod image_store;
   8pub mod lsp_command;
   9pub mod lsp_store;
  10mod manifest_tree;
  11pub mod prettier_store;
  12pub mod project_settings;
  13pub mod search;
  14mod task_inventory;
  15pub mod task_store;
  16pub mod terminals;
  17pub mod toolchain_store;
  18pub mod worktree_store;
  19
  20#[cfg(test)]
  21mod project_tests;
  22
  23mod direnv;
  24mod environment;
  25use buffer_diff::BufferDiff;
  26pub use environment::{EnvironmentErrorMessage, ProjectEnvironmentEvent};
  27use git_store::{GitEvent, Repository};
  28pub mod search_history;
  29mod yarn;
  30
  31use crate::git_store::GitStore;
  32pub use git_store::git_traversal::{ChildEntriesGitIter, GitEntry, GitEntryRef, GitTraversal};
  33
  34use anyhow::{anyhow, Context as _, Result};
  35use buffer_store::{BufferStore, BufferStoreEvent};
  36use client::{
  37    proto, Client, Collaborator, PendingEntitySubscription, ProjectId, TypedEnvelope, UserStore,
  38};
  39use clock::ReplicaId;
  40
  41use dap::{client::DebugAdapterClient, DapRegistry, DebugAdapterConfig};
  42
  43use collections::{BTreeSet, HashMap, HashSet};
  44use debounced_delay::DebouncedDelay;
  45use debugger::{
  46    breakpoint_store::BreakpointStore,
  47    dap_store::{DapStore, DapStoreEvent},
  48    session::Session,
  49};
  50pub use environment::ProjectEnvironment;
  51use futures::{
  52    channel::mpsc::{self, UnboundedReceiver},
  53    future::try_join_all,
  54    StreamExt,
  55};
  56pub use image_store::{ImageItem, ImageStore};
  57use image_store::{ImageItemEvent, ImageStoreEvent};
  58
  59use ::git::{blame::Blame, status::FileStatus};
  60use gpui::{
  61    AnyEntity, App, AppContext, AsyncApp, BorrowAppContext, Context, Entity, EventEmitter, Hsla,
  62    SharedString, Task, WeakEntity, Window,
  63};
  64use itertools::Itertools;
  65use language::{
  66    language_settings::InlayHintKind, proto::split_operations, Buffer, BufferEvent, Capability,
  67    CodeLabel, File as _, Language, LanguageName, LanguageRegistry, PointUtf16, ToOffset,
  68    ToPointUtf16, Toolchain, ToolchainList, Transaction, Unclipped,
  69};
  70use lsp::{
  71    CodeActionKind, CompletionContext, CompletionItemKind, DocumentHighlightKind, LanguageServerId,
  72    LanguageServerName, MessageActionItem,
  73};
  74use lsp_command::*;
  75use lsp_store::{CompletionDocumentation, LspFormatTarget, OpenLspBufferHandle};
  76pub use manifest_tree::ManifestProviders;
  77use node_runtime::NodeRuntime;
  78use parking_lot::Mutex;
  79pub use prettier_store::PrettierStore;
  80use project_settings::{ProjectSettings, SettingsObserver, SettingsObserverEvent};
  81use remote::{SshConnectionOptions, SshRemoteClient};
  82use rpc::{
  83    proto::{FromProto, LanguageServerPromptResponse, ToProto, SSH_PROJECT_ID},
  84    AnyProtoClient, ErrorCode,
  85};
  86use search::{SearchInputKind, SearchQuery, SearchResult};
  87use search_history::SearchHistory;
  88use settings::{InvalidSettingsError, Settings, SettingsLocation, SettingsStore};
  89use smol::channel::Receiver;
  90use snippet::Snippet;
  91use snippet_provider::SnippetProvider;
  92use std::{
  93    borrow::Cow,
  94    ops::Range,
  95    path::{Component, Path, PathBuf},
  96    pin::pin,
  97    str,
  98    sync::Arc,
  99    time::Duration,
 100};
 101
 102use task_store::TaskStore;
 103use terminals::Terminals;
 104use text::{Anchor, BufferId};
 105use toolchain_store::EmptyToolchainStore;
 106use util::{
 107    maybe,
 108    paths::{compare_paths, SanitizedPath},
 109    ResultExt as _,
 110};
 111use worktree::{CreatedEntry, Snapshot, Traversal};
 112pub use worktree::{
 113    Entry, EntryKind, File, LocalWorktree, PathChange, ProjectEntryId, UpdatedEntriesSet,
 114    UpdatedGitRepositoriesSet, Worktree, WorktreeId, WorktreeSettings, FS_WATCH_LATENCY,
 115};
 116use worktree_store::{WorktreeStore, WorktreeStoreEvent};
 117
 118pub use fs::*;
 119pub use language::Location;
 120#[cfg(any(test, feature = "test-support"))]
 121pub use prettier::FORMAT_SUFFIX as TEST_PRETTIER_FORMAT_SUFFIX;
 122pub use task_inventory::{
 123    BasicContextProvider, ContextProviderWithTasks, Inventory, TaskContexts, TaskSourceKind,
 124};
 125
 126pub use buffer_store::ProjectTransaction;
 127pub use lsp_store::{
 128    DiagnosticSummary, LanguageServerLogType, LanguageServerProgress, LanguageServerPromptRequest,
 129    LanguageServerStatus, LanguageServerToQuery, LspStore, LspStoreEvent,
 130    SERVER_PROGRESS_THROTTLE_TIMEOUT,
 131};
 132pub use toolchain_store::ToolchainStore;
 133const MAX_PROJECT_SEARCH_HISTORY_SIZE: usize = 500;
 134const MAX_SEARCH_RESULT_FILES: usize = 5_000;
 135const MAX_SEARCH_RESULT_RANGES: usize = 10_000;
 136
 137pub trait ProjectItem {
 138    fn try_open(
 139        project: &Entity<Project>,
 140        path: &ProjectPath,
 141        cx: &mut App,
 142    ) -> Option<Task<Result<Entity<Self>>>>
 143    where
 144        Self: Sized;
 145    fn entry_id(&self, cx: &App) -> Option<ProjectEntryId>;
 146    fn project_path(&self, cx: &App) -> Option<ProjectPath>;
 147    fn is_dirty(&self) -> bool;
 148}
 149
 150#[derive(Clone)]
 151pub enum OpenedBufferEvent {
 152    Disconnected,
 153    Ok(BufferId),
 154    Err(BufferId, Arc<anyhow::Error>),
 155}
 156
 157/// Semantics-aware entity that is relevant to one or more [`Worktree`] with the files.
 158/// `Project` is responsible for tasks, LSP and collab queries, synchronizing worktree states accordingly.
 159/// Maps [`Worktree`] entries with its own logic using [`ProjectEntryId`] and [`ProjectPath`] structs.
 160///
 161/// Can be either local (for the project opened on the same host) or remote.(for collab projects, browsed by multiple remote users).
 162pub struct Project {
 163    active_entry: Option<ProjectEntryId>,
 164    buffer_ordered_messages_tx: mpsc::UnboundedSender<BufferOrderedMessage>,
 165    languages: Arc<LanguageRegistry>,
 166    debug_adapters: Arc<DapRegistry>,
 167    dap_store: Entity<DapStore>,
 168
 169    breakpoint_store: Entity<BreakpointStore>,
 170    client: Arc<client::Client>,
 171    join_project_response_message_id: u32,
 172    task_store: Entity<TaskStore>,
 173    user_store: Entity<UserStore>,
 174    fs: Arc<dyn Fs>,
 175    ssh_client: Option<Entity<SshRemoteClient>>,
 176    client_state: ProjectClientState,
 177    git_store: Entity<GitStore>,
 178    collaborators: HashMap<proto::PeerId, Collaborator>,
 179    client_subscriptions: Vec<client::Subscription>,
 180    worktree_store: Entity<WorktreeStore>,
 181    buffer_store: Entity<BufferStore>,
 182    image_store: Entity<ImageStore>,
 183    lsp_store: Entity<LspStore>,
 184    _subscriptions: Vec<gpui::Subscription>,
 185    buffers_needing_diff: HashSet<WeakEntity<Buffer>>,
 186    git_diff_debouncer: DebouncedDelay<Self>,
 187    remotely_created_models: Arc<Mutex<RemotelyCreatedModels>>,
 188    terminals: Terminals,
 189    node: Option<NodeRuntime>,
 190    search_history: SearchHistory,
 191    search_included_history: SearchHistory,
 192    search_excluded_history: SearchHistory,
 193    snippets: Entity<SnippetProvider>,
 194    environment: Entity<ProjectEnvironment>,
 195    settings_observer: Entity<SettingsObserver>,
 196    toolchain_store: Option<Entity<ToolchainStore>>,
 197}
 198
 199#[derive(Default)]
 200struct RemotelyCreatedModels {
 201    worktrees: Vec<Entity<Worktree>>,
 202    buffers: Vec<Entity<Buffer>>,
 203    retain_count: usize,
 204}
 205
 206struct RemotelyCreatedModelGuard {
 207    remote_models: std::sync::Weak<Mutex<RemotelyCreatedModels>>,
 208}
 209
 210impl Drop for RemotelyCreatedModelGuard {
 211    fn drop(&mut self) {
 212        if let Some(remote_models) = self.remote_models.upgrade() {
 213            let mut remote_models = remote_models.lock();
 214            assert!(
 215                remote_models.retain_count > 0,
 216                "RemotelyCreatedModelGuard dropped too many times"
 217            );
 218            remote_models.retain_count -= 1;
 219            if remote_models.retain_count == 0 {
 220                remote_models.buffers.clear();
 221                remote_models.worktrees.clear();
 222            }
 223        }
 224    }
 225}
 226/// Message ordered with respect to buffer operations
 227#[derive(Debug)]
 228enum BufferOrderedMessage {
 229    Operation {
 230        buffer_id: BufferId,
 231        operation: proto::Operation,
 232    },
 233    LanguageServerUpdate {
 234        language_server_id: LanguageServerId,
 235        message: proto::update_language_server::Variant,
 236    },
 237    Resync,
 238}
 239
 240#[derive(Debug)]
 241enum ProjectClientState {
 242    /// Single-player mode.
 243    Local,
 244    /// Multi-player mode but still a local project.
 245    Shared { remote_id: u64 },
 246    /// Multi-player mode but working on a remote project.
 247    Remote {
 248        sharing_has_stopped: bool,
 249        capability: Capability,
 250        remote_id: u64,
 251        replica_id: ReplicaId,
 252    },
 253}
 254
 255#[derive(Clone, Debug, PartialEq)]
 256pub enum Event {
 257    LanguageServerAdded(LanguageServerId, LanguageServerName, Option<WorktreeId>),
 258    LanguageServerRemoved(LanguageServerId),
 259    LanguageServerLog(LanguageServerId, LanguageServerLogType, String),
 260    Toast {
 261        notification_id: SharedString,
 262        message: String,
 263    },
 264    HideToast {
 265        notification_id: SharedString,
 266    },
 267    LanguageServerPrompt(LanguageServerPromptRequest),
 268    LanguageNotFound(Entity<Buffer>),
 269    ActiveEntryChanged(Option<ProjectEntryId>),
 270    ActivateProjectPanel,
 271    WorktreeAdded(WorktreeId),
 272    WorktreeOrderChanged,
 273    WorktreeRemoved(WorktreeId),
 274    WorktreeUpdatedEntries(WorktreeId, UpdatedEntriesSet),
 275    DiskBasedDiagnosticsStarted {
 276        language_server_id: LanguageServerId,
 277    },
 278    DiskBasedDiagnosticsFinished {
 279        language_server_id: LanguageServerId,
 280    },
 281    DiagnosticsUpdated {
 282        path: ProjectPath,
 283        language_server_id: LanguageServerId,
 284    },
 285    RemoteIdChanged(Option<u64>),
 286    DisconnectedFromHost,
 287    DisconnectedFromSshRemote,
 288    Closed,
 289    DeletedEntry(WorktreeId, ProjectEntryId),
 290    CollaboratorUpdated {
 291        old_peer_id: proto::PeerId,
 292        new_peer_id: proto::PeerId,
 293    },
 294    CollaboratorJoined(proto::PeerId),
 295    CollaboratorLeft(proto::PeerId),
 296    HostReshared,
 297    Reshared,
 298    Rejoined,
 299    RefreshInlayHints,
 300    RefreshCodeLens,
 301    RevealInProjectPanel(ProjectEntryId),
 302    SnippetEdit(BufferId, Vec<(lsp::Range, Snippet)>),
 303    ExpandedAllForEntry(WorktreeId, ProjectEntryId),
 304    GitStateUpdated,
 305    ActiveRepositoryChanged,
 306}
 307
 308pub enum DebugAdapterClientState {
 309    Starting(Task<Option<Arc<DebugAdapterClient>>>),
 310    Running(Arc<DebugAdapterClient>),
 311}
 312
 313#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
 314pub struct ProjectPath {
 315    pub worktree_id: WorktreeId,
 316    pub path: Arc<Path>,
 317}
 318
 319impl ProjectPath {
 320    pub fn from_proto(p: proto::ProjectPath) -> Self {
 321        Self {
 322            worktree_id: WorktreeId::from_proto(p.worktree_id),
 323            path: Arc::<Path>::from_proto(p.path),
 324        }
 325    }
 326
 327    pub fn to_proto(&self) -> proto::ProjectPath {
 328        proto::ProjectPath {
 329            worktree_id: self.worktree_id.to_proto(),
 330            path: self.path.as_ref().to_proto(),
 331        }
 332    }
 333
 334    pub fn root_path(worktree_id: WorktreeId) -> Self {
 335        Self {
 336            worktree_id,
 337            path: Path::new("").into(),
 338        }
 339    }
 340}
 341
 342#[derive(Debug, Default)]
 343pub enum PrepareRenameResponse {
 344    Success(Range<Anchor>),
 345    OnlyUnpreparedRenameSupported,
 346    #[default]
 347    InvalidPosition,
 348}
 349
 350#[derive(Debug, Clone, PartialEq, Eq)]
 351pub struct InlayHint {
 352    pub position: language::Anchor,
 353    pub label: InlayHintLabel,
 354    pub kind: Option<InlayHintKind>,
 355    pub padding_left: bool,
 356    pub padding_right: bool,
 357    pub tooltip: Option<InlayHintTooltip>,
 358    pub resolve_state: ResolveState,
 359}
 360
 361/// The user's intent behind a given completion confirmation
 362#[derive(PartialEq, Eq, Hash, Debug, Clone, Copy)]
 363pub enum CompletionIntent {
 364    /// The user intends to 'commit' this result, if possible
 365    /// completion confirmations should run side effects
 366    Complete,
 367    /// The user intends to continue 'composing' this completion
 368    /// completion confirmations should not run side effects and
 369    /// let the user continue composing their action
 370    Compose,
 371}
 372
 373impl CompletionIntent {
 374    pub fn is_complete(&self) -> bool {
 375        self == &Self::Complete
 376    }
 377
 378    pub fn is_compose(&self) -> bool {
 379        self == &Self::Compose
 380    }
 381}
 382
 383/// A completion provided by a language server
 384#[derive(Clone)]
 385pub struct Completion {
 386    /// The range of the buffer that will be replaced.
 387    pub old_range: Range<Anchor>,
 388    /// The new text that will be inserted.
 389    pub new_text: String,
 390    /// A label for this completion that is shown in the menu.
 391    pub label: CodeLabel,
 392    /// The documentation for this completion.
 393    pub documentation: Option<CompletionDocumentation>,
 394    /// Completion data source which it was constructed from.
 395    pub source: CompletionSource,
 396    /// A path to an icon for this completion that is shown in the menu.
 397    pub icon_path: Option<SharedString>,
 398    /// An optional callback to invoke when this completion is confirmed.
 399    /// Returns, whether new completions should be retriggered after the current one.
 400    /// If `true` is returned, the editor will show a new completion menu after this completion is confirmed.
 401    /// if no confirmation is provided or `false` is returned, the completion will be committed.
 402    pub confirm: Option<Arc<dyn Send + Sync + Fn(CompletionIntent, &mut Window, &mut App) -> bool>>,
 403}
 404
 405#[derive(Debug, Clone)]
 406pub enum CompletionSource {
 407    Lsp {
 408        /// The id of the language server that produced this completion.
 409        server_id: LanguageServerId,
 410        /// The raw completion provided by the language server.
 411        lsp_completion: Box<lsp::CompletionItem>,
 412        /// A set of defaults for this completion item.
 413        lsp_defaults: Option<Arc<lsp::CompletionListItemDefaults>>,
 414        /// Whether this completion has been resolved, to ensure it happens once per completion.
 415        resolved: bool,
 416    },
 417    Custom,
 418    BufferWord {
 419        word_range: Range<Anchor>,
 420        resolved: bool,
 421    },
 422}
 423
 424impl CompletionSource {
 425    pub fn server_id(&self) -> Option<LanguageServerId> {
 426        if let CompletionSource::Lsp { server_id, .. } = self {
 427            Some(*server_id)
 428        } else {
 429            None
 430        }
 431    }
 432
 433    pub fn lsp_completion(&self, apply_defaults: bool) -> Option<Cow<lsp::CompletionItem>> {
 434        if let Self::Lsp {
 435            lsp_completion,
 436            lsp_defaults,
 437            ..
 438        } = self
 439        {
 440            if apply_defaults {
 441                if let Some(lsp_defaults) = lsp_defaults {
 442                    let mut completion_with_defaults = *lsp_completion.clone();
 443                    let default_commit_characters = lsp_defaults.commit_characters.as_ref();
 444                    let default_edit_range = lsp_defaults.edit_range.as_ref();
 445                    let default_insert_text_format = lsp_defaults.insert_text_format.as_ref();
 446                    let default_insert_text_mode = lsp_defaults.insert_text_mode.as_ref();
 447
 448                    if default_commit_characters.is_some()
 449                        || default_edit_range.is_some()
 450                        || default_insert_text_format.is_some()
 451                        || default_insert_text_mode.is_some()
 452                    {
 453                        if completion_with_defaults.commit_characters.is_none()
 454                            && default_commit_characters.is_some()
 455                        {
 456                            completion_with_defaults.commit_characters =
 457                                default_commit_characters.cloned()
 458                        }
 459                        if completion_with_defaults.text_edit.is_none() {
 460                            match default_edit_range {
 461                                Some(lsp::CompletionListItemDefaultsEditRange::Range(range)) => {
 462                                    completion_with_defaults.text_edit =
 463                                        Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
 464                                            range: *range,
 465                                            new_text: completion_with_defaults.label.clone(),
 466                                        }))
 467                                }
 468                                Some(
 469                                    lsp::CompletionListItemDefaultsEditRange::InsertAndReplace {
 470                                        insert,
 471                                        replace,
 472                                    },
 473                                ) => {
 474                                    completion_with_defaults.text_edit =
 475                                        Some(lsp::CompletionTextEdit::InsertAndReplace(
 476                                            lsp::InsertReplaceEdit {
 477                                                new_text: completion_with_defaults.label.clone(),
 478                                                insert: *insert,
 479                                                replace: *replace,
 480                                            },
 481                                        ))
 482                                }
 483                                None => {}
 484                            }
 485                        }
 486                        if completion_with_defaults.insert_text_format.is_none()
 487                            && default_insert_text_format.is_some()
 488                        {
 489                            completion_with_defaults.insert_text_format =
 490                                default_insert_text_format.cloned()
 491                        }
 492                        if completion_with_defaults.insert_text_mode.is_none()
 493                            && default_insert_text_mode.is_some()
 494                        {
 495                            completion_with_defaults.insert_text_mode =
 496                                default_insert_text_mode.cloned()
 497                        }
 498                    }
 499                    return Some(Cow::Owned(completion_with_defaults));
 500                }
 501            }
 502            Some(Cow::Borrowed(lsp_completion))
 503        } else {
 504            None
 505        }
 506    }
 507}
 508
 509impl std::fmt::Debug for Completion {
 510    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 511        f.debug_struct("Completion")
 512            .field("old_range", &self.old_range)
 513            .field("new_text", &self.new_text)
 514            .field("label", &self.label)
 515            .field("documentation", &self.documentation)
 516            .field("source", &self.source)
 517            .finish()
 518    }
 519}
 520
 521/// A completion provided by a language server
 522#[derive(Clone, Debug)]
 523pub(crate) struct CoreCompletion {
 524    old_range: Range<Anchor>,
 525    new_text: String,
 526    source: CompletionSource,
 527}
 528
 529/// A code action provided by a language server.
 530#[derive(Clone, Debug)]
 531pub struct CodeAction {
 532    /// The id of the language server that produced this code action.
 533    pub server_id: LanguageServerId,
 534    /// The range of the buffer where this code action is applicable.
 535    pub range: Range<Anchor>,
 536    /// The raw code action provided by the language server.
 537    /// Can be either an action or a command.
 538    pub lsp_action: LspAction,
 539    /// Whether the action needs to be resolved using the language server.
 540    pub resolved: bool,
 541}
 542
 543/// An action sent back by a language server.
 544#[derive(Clone, Debug)]
 545pub enum LspAction {
 546    /// An action with the full data, may have a command or may not.
 547    /// May require resolving.
 548    Action(Box<lsp::CodeAction>),
 549    /// A command data to run as an action.
 550    Command(lsp::Command),
 551    /// A code lens data to run as an action.
 552    CodeLens(lsp::CodeLens),
 553}
 554
 555impl LspAction {
 556    pub fn title(&self) -> &str {
 557        match self {
 558            Self::Action(action) => &action.title,
 559            Self::Command(command) => &command.title,
 560            Self::CodeLens(lens) => lens
 561                .command
 562                .as_ref()
 563                .map(|command| command.title.as_str())
 564                .unwrap_or("Unknown command"),
 565        }
 566    }
 567
 568    fn action_kind(&self) -> Option<lsp::CodeActionKind> {
 569        match self {
 570            Self::Action(action) => action.kind.clone(),
 571            Self::Command(_) => Some(lsp::CodeActionKind::new("command")),
 572            Self::CodeLens(_) => Some(lsp::CodeActionKind::new("code lens")),
 573        }
 574    }
 575
 576    fn edit(&self) -> Option<&lsp::WorkspaceEdit> {
 577        match self {
 578            Self::Action(action) => action.edit.as_ref(),
 579            Self::Command(_) => None,
 580            Self::CodeLens(_) => None,
 581        }
 582    }
 583
 584    fn command(&self) -> Option<&lsp::Command> {
 585        match self {
 586            Self::Action(action) => action.command.as_ref(),
 587            Self::Command(command) => Some(command),
 588            Self::CodeLens(lens) => lens.command.as_ref(),
 589        }
 590    }
 591}
 592
 593#[derive(Debug, Clone, PartialEq, Eq)]
 594pub enum ResolveState {
 595    Resolved,
 596    CanResolve(LanguageServerId, Option<lsp::LSPAny>),
 597    Resolving,
 598}
 599
 600impl InlayHint {
 601    pub fn text(&self) -> String {
 602        match &self.label {
 603            InlayHintLabel::String(s) => s.to_owned(),
 604            InlayHintLabel::LabelParts(parts) => parts.iter().map(|part| &part.value).join(""),
 605        }
 606    }
 607}
 608
 609#[derive(Debug, Clone, PartialEq, Eq)]
 610pub enum InlayHintLabel {
 611    String(String),
 612    LabelParts(Vec<InlayHintLabelPart>),
 613}
 614
 615#[derive(Debug, Clone, PartialEq, Eq)]
 616pub struct InlayHintLabelPart {
 617    pub value: String,
 618    pub tooltip: Option<InlayHintLabelPartTooltip>,
 619    pub location: Option<(LanguageServerId, lsp::Location)>,
 620}
 621
 622#[derive(Debug, Clone, PartialEq, Eq)]
 623pub enum InlayHintTooltip {
 624    String(String),
 625    MarkupContent(MarkupContent),
 626}
 627
 628#[derive(Debug, Clone, PartialEq, Eq)]
 629pub enum InlayHintLabelPartTooltip {
 630    String(String),
 631    MarkupContent(MarkupContent),
 632}
 633
 634#[derive(Debug, Clone, PartialEq, Eq)]
 635pub struct MarkupContent {
 636    pub kind: HoverBlockKind,
 637    pub value: String,
 638}
 639
 640#[derive(Debug, Clone)]
 641pub struct LocationLink {
 642    pub origin: Option<Location>,
 643    pub target: Location,
 644}
 645
 646#[derive(Debug)]
 647pub struct DocumentHighlight {
 648    pub range: Range<language::Anchor>,
 649    pub kind: DocumentHighlightKind,
 650}
 651
 652#[derive(Clone, Debug)]
 653pub struct Symbol {
 654    pub language_server_name: LanguageServerName,
 655    pub source_worktree_id: WorktreeId,
 656    pub source_language_server_id: LanguageServerId,
 657    pub path: ProjectPath,
 658    pub label: CodeLabel,
 659    pub name: String,
 660    pub kind: lsp::SymbolKind,
 661    pub range: Range<Unclipped<PointUtf16>>,
 662    pub signature: [u8; 32],
 663}
 664
 665#[derive(Clone, Debug)]
 666pub struct DocumentSymbol {
 667    pub name: String,
 668    pub kind: lsp::SymbolKind,
 669    pub range: Range<Unclipped<PointUtf16>>,
 670    pub selection_range: Range<Unclipped<PointUtf16>>,
 671    pub children: Vec<DocumentSymbol>,
 672}
 673
 674#[derive(Clone, Debug, PartialEq)]
 675pub struct HoverBlock {
 676    pub text: String,
 677    pub kind: HoverBlockKind,
 678}
 679
 680#[derive(Clone, Debug, PartialEq, Eq)]
 681pub enum HoverBlockKind {
 682    PlainText,
 683    Markdown,
 684    Code { language: String },
 685}
 686
 687#[derive(Debug, Clone)]
 688pub struct Hover {
 689    pub contents: Vec<HoverBlock>,
 690    pub range: Option<Range<language::Anchor>>,
 691    pub language: Option<Arc<Language>>,
 692}
 693
 694impl Hover {
 695    pub fn is_empty(&self) -> bool {
 696        self.contents.iter().all(|block| block.text.is_empty())
 697    }
 698}
 699
 700enum EntitySubscription {
 701    Project(PendingEntitySubscription<Project>),
 702    BufferStore(PendingEntitySubscription<BufferStore>),
 703    GitStore(PendingEntitySubscription<GitStore>),
 704    WorktreeStore(PendingEntitySubscription<WorktreeStore>),
 705    LspStore(PendingEntitySubscription<LspStore>),
 706    SettingsObserver(PendingEntitySubscription<SettingsObserver>),
 707    DapStore(PendingEntitySubscription<DapStore>),
 708}
 709
 710#[derive(Debug, Clone)]
 711pub struct DirectoryItem {
 712    pub path: PathBuf,
 713    pub is_dir: bool,
 714}
 715
 716#[derive(Clone)]
 717pub enum DirectoryLister {
 718    Project(Entity<Project>),
 719    Local(Arc<dyn Fs>),
 720}
 721
 722impl DirectoryLister {
 723    pub fn is_local(&self, cx: &App) -> bool {
 724        match self {
 725            DirectoryLister::Local(_) => true,
 726            DirectoryLister::Project(project) => project.read(cx).is_local(),
 727        }
 728    }
 729
 730    pub fn resolve_tilde<'a>(&self, path: &'a String, cx: &App) -> Cow<'a, str> {
 731        if self.is_local(cx) {
 732            shellexpand::tilde(path)
 733        } else {
 734            Cow::from(path)
 735        }
 736    }
 737
 738    pub fn default_query(&self, cx: &mut App) -> String {
 739        if let DirectoryLister::Project(project) = self {
 740            if let Some(worktree) = project.read(cx).visible_worktrees(cx).next() {
 741                return worktree.read(cx).abs_path().to_string_lossy().to_string();
 742            }
 743        };
 744        format!("~{}", std::path::MAIN_SEPARATOR_STR)
 745    }
 746
 747    pub fn list_directory(&self, path: String, cx: &mut App) -> Task<Result<Vec<DirectoryItem>>> {
 748        match self {
 749            DirectoryLister::Project(project) => {
 750                project.update(cx, |project, cx| project.list_directory(path, cx))
 751            }
 752            DirectoryLister::Local(fs) => {
 753                let fs = fs.clone();
 754                cx.background_spawn(async move {
 755                    let mut results = vec![];
 756                    let expanded = shellexpand::tilde(&path);
 757                    let query = Path::new(expanded.as_ref());
 758                    let mut response = fs.read_dir(query).await?;
 759                    while let Some(path) = response.next().await {
 760                        let path = path?;
 761                        if let Some(file_name) = path.file_name() {
 762                            results.push(DirectoryItem {
 763                                path: PathBuf::from(file_name.to_os_string()),
 764                                is_dir: fs.is_dir(&path).await,
 765                            });
 766                        }
 767                    }
 768                    Ok(results)
 769                })
 770            }
 771        }
 772    }
 773}
 774
 775#[cfg(any(test, feature = "test-support"))]
 776pub const DEFAULT_COMPLETION_CONTEXT: CompletionContext = CompletionContext {
 777    trigger_kind: lsp::CompletionTriggerKind::INVOKED,
 778    trigger_character: None,
 779};
 780
 781impl Project {
 782    pub fn init_settings(cx: &mut App) {
 783        WorktreeSettings::register(cx);
 784        ProjectSettings::register(cx);
 785    }
 786
 787    pub fn init(client: &Arc<Client>, cx: &mut App) {
 788        connection_manager::init(client.clone(), cx);
 789        Self::init_settings(cx);
 790
 791        let client: AnyProtoClient = client.clone().into();
 792        client.add_entity_message_handler(Self::handle_add_collaborator);
 793        client.add_entity_message_handler(Self::handle_update_project_collaborator);
 794        client.add_entity_message_handler(Self::handle_remove_collaborator);
 795        client.add_entity_message_handler(Self::handle_update_project);
 796        client.add_entity_message_handler(Self::handle_unshare_project);
 797        client.add_entity_request_handler(Self::handle_update_buffer);
 798        client.add_entity_message_handler(Self::handle_update_worktree);
 799        client.add_entity_request_handler(Self::handle_synchronize_buffers);
 800
 801        client.add_entity_request_handler(Self::handle_search_candidate_buffers);
 802        client.add_entity_request_handler(Self::handle_open_buffer_by_id);
 803        client.add_entity_request_handler(Self::handle_open_buffer_by_path);
 804        client.add_entity_request_handler(Self::handle_open_new_buffer);
 805        client.add_entity_message_handler(Self::handle_create_buffer_for_peer);
 806
 807        WorktreeStore::init(&client);
 808        BufferStore::init(&client);
 809        LspStore::init(&client);
 810        GitStore::init(&client);
 811        SettingsObserver::init(&client);
 812        TaskStore::init(Some(&client));
 813        ToolchainStore::init(&client);
 814        DapStore::init(&client);
 815        BreakpointStore::init(&client);
 816    }
 817
 818    pub fn local(
 819        client: Arc<Client>,
 820        node: NodeRuntime,
 821        user_store: Entity<UserStore>,
 822        languages: Arc<LanguageRegistry>,
 823        debug_adapters: Arc<DapRegistry>,
 824        fs: Arc<dyn Fs>,
 825        env: Option<HashMap<String, String>>,
 826        cx: &mut App,
 827    ) -> Entity<Self> {
 828        cx.new(|cx: &mut Context<Self>| {
 829            let (tx, rx) = mpsc::unbounded();
 830            cx.spawn(async move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx).await)
 831                .detach();
 832            let snippets = SnippetProvider::new(fs.clone(), BTreeSet::from_iter([]), cx);
 833            let worktree_store = cx.new(|_| WorktreeStore::local(false, fs.clone()));
 834            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
 835                .detach();
 836
 837            let environment = ProjectEnvironment::new(&worktree_store, env, cx);
 838            let toolchain_store = cx.new(|cx| {
 839                ToolchainStore::local(
 840                    languages.clone(),
 841                    worktree_store.clone(),
 842                    environment.clone(),
 843                    cx,
 844                )
 845            });
 846
 847            let buffer_store = cx.new(|cx| BufferStore::local(worktree_store.clone(), cx));
 848            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
 849                .detach();
 850
 851            let breakpoint_store =
 852                cx.new(|_| BreakpointStore::local(worktree_store.clone(), buffer_store.clone()));
 853
 854            let dap_store = cx.new(|cx| {
 855                DapStore::new_local(
 856                    client.http_client(),
 857                    node.clone(),
 858                    fs.clone(),
 859                    languages.clone(),
 860                    debug_adapters.clone(),
 861                    environment.clone(),
 862                    toolchain_store.read(cx).as_language_toolchain_store(),
 863                    breakpoint_store.clone(),
 864                    worktree_store.clone(),
 865                    cx,
 866                )
 867            });
 868            cx.subscribe(&dap_store, Self::on_dap_store_event).detach();
 869
 870            let image_store = cx.new(|cx| ImageStore::local(worktree_store.clone(), cx));
 871            cx.subscribe(&image_store, Self::on_image_store_event)
 872                .detach();
 873
 874            let prettier_store = cx.new(|cx| {
 875                PrettierStore::new(
 876                    node.clone(),
 877                    fs.clone(),
 878                    languages.clone(),
 879                    worktree_store.clone(),
 880                    cx,
 881                )
 882            });
 883
 884            let task_store = cx.new(|cx| {
 885                TaskStore::local(
 886                    buffer_store.downgrade(),
 887                    worktree_store.clone(),
 888                    toolchain_store.read(cx).as_language_toolchain_store(),
 889                    environment.clone(),
 890                    cx,
 891                )
 892            });
 893
 894            let settings_observer = cx.new(|cx| {
 895                SettingsObserver::new_local(
 896                    fs.clone(),
 897                    worktree_store.clone(),
 898                    task_store.clone(),
 899                    cx,
 900                )
 901            });
 902            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
 903                .detach();
 904
 905            let lsp_store = cx.new(|cx| {
 906                LspStore::new_local(
 907                    buffer_store.clone(),
 908                    worktree_store.clone(),
 909                    prettier_store.clone(),
 910                    toolchain_store.clone(),
 911                    environment.clone(),
 912                    languages.clone(),
 913                    client.http_client(),
 914                    fs.clone(),
 915                    cx,
 916                )
 917            });
 918
 919            let git_store = cx.new(|cx| {
 920                GitStore::local(
 921                    &worktree_store,
 922                    buffer_store.clone(),
 923                    environment.clone(),
 924                    fs.clone(),
 925                    cx,
 926                )
 927            });
 928            cx.subscribe(&git_store, Self::on_git_store_event).detach();
 929
 930            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
 931
 932            Self {
 933                buffer_ordered_messages_tx: tx,
 934                collaborators: Default::default(),
 935                worktree_store,
 936                buffer_store,
 937                image_store,
 938                lsp_store,
 939                join_project_response_message_id: 0,
 940                client_state: ProjectClientState::Local,
 941                git_store,
 942                client_subscriptions: Vec::new(),
 943                _subscriptions: vec![cx.on_release(Self::release)],
 944                active_entry: None,
 945                snippets,
 946                languages,
 947                debug_adapters,
 948                client,
 949                task_store,
 950                user_store,
 951                settings_observer,
 952                fs,
 953                ssh_client: None,
 954                breakpoint_store,
 955                dap_store,
 956
 957                buffers_needing_diff: Default::default(),
 958                git_diff_debouncer: DebouncedDelay::new(),
 959                terminals: Terminals {
 960                    local_handles: Vec::new(),
 961                },
 962                node: Some(node),
 963                search_history: Self::new_search_history(),
 964                environment,
 965                remotely_created_models: Default::default(),
 966
 967                search_included_history: Self::new_search_history(),
 968                search_excluded_history: Self::new_search_history(),
 969
 970                toolchain_store: Some(toolchain_store),
 971            }
 972        })
 973    }
 974
 975    pub fn ssh(
 976        ssh: Entity<SshRemoteClient>,
 977        client: Arc<Client>,
 978        node: NodeRuntime,
 979        user_store: Entity<UserStore>,
 980        languages: Arc<LanguageRegistry>,
 981        fs: Arc<dyn Fs>,
 982        cx: &mut App,
 983    ) -> Entity<Self> {
 984        cx.new(|cx: &mut Context<Self>| {
 985            let (tx, rx) = mpsc::unbounded();
 986            cx.spawn(async move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx).await)
 987                .detach();
 988            let global_snippets_dir = paths::config_dir().join("snippets");
 989            let snippets =
 990                SnippetProvider::new(fs.clone(), BTreeSet::from_iter([global_snippets_dir]), cx);
 991
 992            let ssh_proto = ssh.read(cx).proto_client();
 993            let worktree_store =
 994                cx.new(|_| WorktreeStore::remote(false, ssh_proto.clone(), SSH_PROJECT_ID));
 995            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
 996                .detach();
 997
 998            let buffer_store = cx.new(|cx| {
 999                BufferStore::remote(
1000                    worktree_store.clone(),
1001                    ssh.read(cx).proto_client(),
1002                    SSH_PROJECT_ID,
1003                    cx,
1004                )
1005            });
1006            let image_store = cx.new(|cx| {
1007                ImageStore::remote(
1008                    worktree_store.clone(),
1009                    ssh.read(cx).proto_client(),
1010                    SSH_PROJECT_ID,
1011                    cx,
1012                )
1013            });
1014            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
1015                .detach();
1016            let toolchain_store = cx
1017                .new(|cx| ToolchainStore::remote(SSH_PROJECT_ID, ssh.read(cx).proto_client(), cx));
1018            let task_store = cx.new(|cx| {
1019                TaskStore::remote(
1020                    buffer_store.downgrade(),
1021                    worktree_store.clone(),
1022                    toolchain_store.read(cx).as_language_toolchain_store(),
1023                    ssh.read(cx).proto_client(),
1024                    SSH_PROJECT_ID,
1025                    cx,
1026                )
1027            });
1028
1029            let settings_observer = cx.new(|cx| {
1030                SettingsObserver::new_remote(
1031                    fs.clone(),
1032                    worktree_store.clone(),
1033                    task_store.clone(),
1034                    cx,
1035                )
1036            });
1037            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
1038                .detach();
1039
1040            let environment = ProjectEnvironment::new(&worktree_store, None, cx);
1041
1042            let lsp_store = cx.new(|cx| {
1043                LspStore::new_remote(
1044                    buffer_store.clone(),
1045                    worktree_store.clone(),
1046                    Some(toolchain_store.clone()),
1047                    languages.clone(),
1048                    ssh_proto.clone(),
1049                    SSH_PROJECT_ID,
1050                    fs.clone(),
1051                    cx,
1052                )
1053            });
1054            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
1055
1056            let breakpoint_store =
1057                cx.new(|_| BreakpointStore::remote(SSH_PROJECT_ID, client.clone().into()));
1058
1059            let dap_store = cx.new(|_| {
1060                DapStore::new_remote(
1061                    SSH_PROJECT_ID,
1062                    client.clone().into(),
1063                    breakpoint_store.clone(),
1064                )
1065            });
1066
1067            let git_store = cx.new(|cx| {
1068                GitStore::ssh(
1069                    &worktree_store,
1070                    buffer_store.clone(),
1071                    environment.clone(),
1072                    ssh_proto.clone(),
1073                    cx,
1074                )
1075            });
1076
1077            cx.subscribe(&ssh, Self::on_ssh_event).detach();
1078
1079            let this = Self {
1080                buffer_ordered_messages_tx: tx,
1081                collaborators: Default::default(),
1082                worktree_store,
1083                buffer_store,
1084                image_store,
1085                lsp_store,
1086                breakpoint_store,
1087                dap_store,
1088                join_project_response_message_id: 0,
1089                client_state: ProjectClientState::Local,
1090                git_store,
1091                client_subscriptions: Vec::new(),
1092                _subscriptions: vec![
1093                    cx.on_release(Self::release),
1094                    cx.on_app_quit(|this, cx| {
1095                        let shutdown = this.ssh_client.take().and_then(|client| {
1096                            client
1097                                .read(cx)
1098                                .shutdown_processes(Some(proto::ShutdownRemoteServer {}))
1099                        });
1100
1101                        cx.background_executor().spawn(async move {
1102                            if let Some(shutdown) = shutdown {
1103                                shutdown.await;
1104                            }
1105                        })
1106                    }),
1107                ],
1108                active_entry: None,
1109                snippets,
1110                languages,
1111                debug_adapters: Arc::new(DapRegistry::default()),
1112                client,
1113                task_store,
1114                user_store,
1115                settings_observer,
1116                fs,
1117                ssh_client: Some(ssh.clone()),
1118                buffers_needing_diff: Default::default(),
1119                git_diff_debouncer: DebouncedDelay::new(),
1120                terminals: Terminals {
1121                    local_handles: Vec::new(),
1122                },
1123                node: Some(node),
1124                search_history: Self::new_search_history(),
1125                environment,
1126                remotely_created_models: Default::default(),
1127
1128                search_included_history: Self::new_search_history(),
1129                search_excluded_history: Self::new_search_history(),
1130
1131                toolchain_store: Some(toolchain_store),
1132            };
1133
1134            // ssh -> local machine handlers
1135            let ssh = ssh.read(cx);
1136            ssh.subscribe_to_entity(SSH_PROJECT_ID, &cx.entity());
1137            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.buffer_store);
1138            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.worktree_store);
1139            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.lsp_store);
1140            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.dap_store);
1141            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.settings_observer);
1142            ssh.subscribe_to_entity(SSH_PROJECT_ID, &this.git_store);
1143
1144            ssh_proto.add_entity_message_handler(Self::handle_create_buffer_for_peer);
1145            ssh_proto.add_entity_message_handler(Self::handle_update_worktree);
1146            ssh_proto.add_entity_message_handler(Self::handle_update_project);
1147            ssh_proto.add_entity_message_handler(Self::handle_toast);
1148            ssh_proto.add_entity_request_handler(Self::handle_language_server_prompt_request);
1149            ssh_proto.add_entity_message_handler(Self::handle_hide_toast);
1150            ssh_proto.add_entity_request_handler(Self::handle_update_buffer_from_ssh);
1151            BufferStore::init(&ssh_proto);
1152            LspStore::init(&ssh_proto);
1153            SettingsObserver::init(&ssh_proto);
1154            TaskStore::init(Some(&ssh_proto));
1155            ToolchainStore::init(&ssh_proto);
1156            DapStore::init(&ssh_proto);
1157            GitStore::init(&ssh_proto);
1158
1159            this
1160        })
1161    }
1162
1163    pub async fn remote(
1164        remote_id: u64,
1165        client: Arc<Client>,
1166        user_store: Entity<UserStore>,
1167        languages: Arc<LanguageRegistry>,
1168        fs: Arc<dyn Fs>,
1169        cx: AsyncApp,
1170    ) -> Result<Entity<Self>> {
1171        let project =
1172            Self::in_room(remote_id, client, user_store, languages, fs, cx.clone()).await?;
1173        cx.update(|cx| {
1174            connection_manager::Manager::global(cx).update(cx, |manager, cx| {
1175                manager.maintain_project_connection(&project, cx)
1176            })
1177        })?;
1178        Ok(project)
1179    }
1180
1181    pub async fn in_room(
1182        remote_id: u64,
1183        client: Arc<Client>,
1184        user_store: Entity<UserStore>,
1185        languages: Arc<LanguageRegistry>,
1186        fs: Arc<dyn Fs>,
1187        cx: AsyncApp,
1188    ) -> Result<Entity<Self>> {
1189        client.authenticate_and_connect(true, &cx).await?;
1190
1191        let subscriptions = [
1192            EntitySubscription::Project(client.subscribe_to_entity::<Self>(remote_id)?),
1193            EntitySubscription::BufferStore(client.subscribe_to_entity::<BufferStore>(remote_id)?),
1194            EntitySubscription::GitStore(client.subscribe_to_entity::<GitStore>(remote_id)?),
1195            EntitySubscription::WorktreeStore(
1196                client.subscribe_to_entity::<WorktreeStore>(remote_id)?,
1197            ),
1198            EntitySubscription::LspStore(client.subscribe_to_entity::<LspStore>(remote_id)?),
1199            EntitySubscription::SettingsObserver(
1200                client.subscribe_to_entity::<SettingsObserver>(remote_id)?,
1201            ),
1202            EntitySubscription::DapStore(client.subscribe_to_entity::<DapStore>(remote_id)?),
1203        ];
1204        let response = client
1205            .request_envelope(proto::JoinProject {
1206                project_id: remote_id,
1207            })
1208            .await?;
1209        Self::from_join_project_response(
1210            response,
1211            subscriptions,
1212            client,
1213            false,
1214            user_store,
1215            languages,
1216            fs,
1217            cx,
1218        )
1219        .await
1220    }
1221
1222    async fn from_join_project_response(
1223        response: TypedEnvelope<proto::JoinProjectResponse>,
1224        subscriptions: [EntitySubscription; 7],
1225        client: Arc<Client>,
1226        run_tasks: bool,
1227        user_store: Entity<UserStore>,
1228        languages: Arc<LanguageRegistry>,
1229        fs: Arc<dyn Fs>,
1230        mut cx: AsyncApp,
1231    ) -> Result<Entity<Self>> {
1232        let remote_id = response.payload.project_id;
1233        let role = response.payload.role();
1234
1235        let worktree_store = cx.new(|_| {
1236            WorktreeStore::remote(true, client.clone().into(), response.payload.project_id)
1237        })?;
1238        let buffer_store = cx.new(|cx| {
1239            BufferStore::remote(worktree_store.clone(), client.clone().into(), remote_id, cx)
1240        })?;
1241        let image_store = cx.new(|cx| {
1242            ImageStore::remote(worktree_store.clone(), client.clone().into(), remote_id, cx)
1243        })?;
1244
1245        let environment = cx.update(|cx| ProjectEnvironment::new(&worktree_store, None, cx))?;
1246
1247        let breakpoint_store =
1248            cx.new(|_| BreakpointStore::remote(remote_id, client.clone().into()))?;
1249        let dap_store = cx.new(|_cx| {
1250            DapStore::new_remote(remote_id, client.clone().into(), breakpoint_store.clone())
1251        })?;
1252
1253        let lsp_store = cx.new(|cx| {
1254            let mut lsp_store = LspStore::new_remote(
1255                buffer_store.clone(),
1256                worktree_store.clone(),
1257                None,
1258                languages.clone(),
1259                client.clone().into(),
1260                remote_id,
1261                fs.clone(),
1262                cx,
1263            );
1264            lsp_store.set_language_server_statuses_from_proto(response.payload.language_servers);
1265            lsp_store
1266        })?;
1267
1268        let task_store = cx.new(|cx| {
1269            if run_tasks {
1270                TaskStore::remote(
1271                    buffer_store.downgrade(),
1272                    worktree_store.clone(),
1273                    Arc::new(EmptyToolchainStore),
1274                    client.clone().into(),
1275                    remote_id,
1276                    cx,
1277                )
1278            } else {
1279                TaskStore::Noop
1280            }
1281        })?;
1282
1283        let settings_observer = cx.new(|cx| {
1284            SettingsObserver::new_remote(fs.clone(), worktree_store.clone(), task_store.clone(), cx)
1285        })?;
1286
1287        let git_store = cx.new(|cx| {
1288            GitStore::remote(
1289                // In this remote case we pass None for the environment
1290                &worktree_store,
1291                buffer_store.clone(),
1292                client.clone().into(),
1293                ProjectId(remote_id),
1294                cx,
1295            )
1296        })?;
1297
1298        let this = cx.new(|cx| {
1299            let replica_id = response.payload.replica_id as ReplicaId;
1300
1301            let snippets = SnippetProvider::new(fs.clone(), BTreeSet::from_iter([]), cx);
1302
1303            let mut worktrees = Vec::new();
1304            for worktree in response.payload.worktrees {
1305                let worktree =
1306                    Worktree::remote(remote_id, replica_id, worktree, client.clone().into(), cx);
1307                worktrees.push(worktree);
1308            }
1309
1310            let (tx, rx) = mpsc::unbounded();
1311            cx.spawn(async move |this, cx| Self::send_buffer_ordered_messages(this, rx, cx).await)
1312                .detach();
1313
1314            cx.subscribe(&worktree_store, Self::on_worktree_store_event)
1315                .detach();
1316
1317            cx.subscribe(&buffer_store, Self::on_buffer_store_event)
1318                .detach();
1319            cx.subscribe(&lsp_store, Self::on_lsp_store_event).detach();
1320            cx.subscribe(&settings_observer, Self::on_settings_observer_event)
1321                .detach();
1322
1323            cx.subscribe(&dap_store, Self::on_dap_store_event).detach();
1324
1325            let mut this = Self {
1326                buffer_ordered_messages_tx: tx,
1327                buffer_store: buffer_store.clone(),
1328                image_store,
1329                worktree_store: worktree_store.clone(),
1330                lsp_store: lsp_store.clone(),
1331                active_entry: None,
1332                collaborators: Default::default(),
1333                join_project_response_message_id: response.message_id,
1334                languages,
1335                debug_adapters: Arc::new(DapRegistry::default()),
1336                user_store: user_store.clone(),
1337                task_store,
1338                snippets,
1339                fs,
1340                ssh_client: None,
1341                settings_observer: settings_observer.clone(),
1342                client_subscriptions: Default::default(),
1343                _subscriptions: vec![cx.on_release(Self::release)],
1344                client: client.clone(),
1345                client_state: ProjectClientState::Remote {
1346                    sharing_has_stopped: false,
1347                    capability: Capability::ReadWrite,
1348                    remote_id,
1349                    replica_id,
1350                },
1351                breakpoint_store,
1352                dap_store: dap_store.clone(),
1353                git_store: git_store.clone(),
1354                buffers_needing_diff: Default::default(),
1355                git_diff_debouncer: DebouncedDelay::new(),
1356                terminals: Terminals {
1357                    local_handles: Vec::new(),
1358                },
1359                node: None,
1360                search_history: Self::new_search_history(),
1361                search_included_history: Self::new_search_history(),
1362                search_excluded_history: Self::new_search_history(),
1363                environment,
1364                remotely_created_models: Arc::new(Mutex::new(RemotelyCreatedModels::default())),
1365                toolchain_store: None,
1366            };
1367            this.set_role(role, cx);
1368            for worktree in worktrees {
1369                this.add_worktree(&worktree, cx);
1370            }
1371            this
1372        })?;
1373
1374        let subscriptions = subscriptions
1375            .into_iter()
1376            .map(|s| match s {
1377                EntitySubscription::BufferStore(subscription) => {
1378                    subscription.set_entity(&buffer_store, &mut cx)
1379                }
1380                EntitySubscription::WorktreeStore(subscription) => {
1381                    subscription.set_entity(&worktree_store, &mut cx)
1382                }
1383                EntitySubscription::GitStore(subscription) => {
1384                    subscription.set_entity(&git_store, &mut cx)
1385                }
1386                EntitySubscription::SettingsObserver(subscription) => {
1387                    subscription.set_entity(&settings_observer, &mut cx)
1388                }
1389                EntitySubscription::Project(subscription) => {
1390                    subscription.set_entity(&this, &mut cx)
1391                }
1392                EntitySubscription::LspStore(subscription) => {
1393                    subscription.set_entity(&lsp_store, &mut cx)
1394                }
1395                EntitySubscription::DapStore(subscription) => {
1396                    subscription.set_entity(&dap_store, &mut cx)
1397                }
1398            })
1399            .collect::<Vec<_>>();
1400
1401        let user_ids = response
1402            .payload
1403            .collaborators
1404            .iter()
1405            .map(|peer| peer.user_id)
1406            .collect();
1407        user_store
1408            .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))?
1409            .await?;
1410
1411        this.update(&mut cx, |this, cx| {
1412            this.set_collaborators_from_proto(response.payload.collaborators, cx)?;
1413            this.client_subscriptions.extend(subscriptions);
1414            anyhow::Ok(())
1415        })??;
1416
1417        Ok(this)
1418    }
1419
1420    fn new_search_history() -> SearchHistory {
1421        SearchHistory::new(
1422            Some(MAX_PROJECT_SEARCH_HISTORY_SIZE),
1423            search_history::QueryInsertionBehavior::AlwaysInsert,
1424        )
1425    }
1426
1427    fn release(&mut self, cx: &mut App) {
1428        if let Some(client) = self.ssh_client.take() {
1429            let shutdown = client
1430                .read(cx)
1431                .shutdown_processes(Some(proto::ShutdownRemoteServer {}));
1432
1433            cx.background_spawn(async move {
1434                if let Some(shutdown) = shutdown {
1435                    shutdown.await;
1436                }
1437            })
1438            .detach()
1439        }
1440
1441        match &self.client_state {
1442            ProjectClientState::Local => {}
1443            ProjectClientState::Shared { .. } => {
1444                let _ = self.unshare_internal(cx);
1445            }
1446            ProjectClientState::Remote { remote_id, .. } => {
1447                let _ = self.client.send(proto::LeaveProject {
1448                    project_id: *remote_id,
1449                });
1450                self.disconnected_from_host_internal(cx);
1451            }
1452        }
1453    }
1454
1455    pub fn queue_debug_session(&mut self, config: DebugAdapterConfig, cx: &mut Context<Self>) {
1456        if config.locator.is_none() {
1457            self.start_debug_session(config, cx).detach_and_log_err(cx);
1458        }
1459    }
1460
1461    pub fn start_debug_session(
1462        &mut self,
1463        config: DebugAdapterConfig,
1464        cx: &mut Context<Self>,
1465    ) -> Task<Result<Entity<Session>>> {
1466        let worktree = maybe!({ self.worktrees(cx).next() });
1467
1468        let Some(worktree) = &worktree else {
1469            return Task::ready(Err(anyhow!("Failed to find a worktree")));
1470        };
1471
1472        self.dap_store
1473            .update(cx, |dap_store, cx| {
1474                dap_store.new_session(config, worktree, None, cx)
1475            })
1476            .1
1477    }
1478
1479    #[cfg(any(test, feature = "test-support"))]
1480    pub fn fake_debug_session(
1481        &mut self,
1482        request: task::DebugRequestType,
1483        caps: Option<dap::Capabilities>,
1484        fails: bool,
1485        cx: &mut Context<Self>,
1486    ) -> Task<Result<Entity<Session>>> {
1487        use dap::{Capabilities, FakeAdapter};
1488        use task::DebugRequestDisposition;
1489
1490        let worktree = maybe!({ self.worktrees(cx).next() });
1491
1492        let Some(worktree) = &worktree else {
1493            return Task::ready(Err(anyhow!("Failed to find a worktree")));
1494        };
1495        let config = DebugAdapterConfig {
1496            label: "test config".into(),
1497            adapter: FakeAdapter::ADAPTER_NAME.into(),
1498            request: DebugRequestDisposition::UserConfigured(request),
1499            initialize_args: None,
1500            tcp_connection: None,
1501            locator: None,
1502            args: Default::default(),
1503        };
1504        let caps = caps.unwrap_or(Capabilities {
1505            supports_step_back: Some(false),
1506            ..Default::default()
1507        });
1508        self.dap_store
1509            .update(cx, |dap_store, cx| {
1510                dap_store.new_fake_session(config, worktree, None, caps, fails, cx)
1511            })
1512            .1
1513    }
1514
1515    #[cfg(any(test, feature = "test-support"))]
1516    pub async fn example(
1517        root_paths: impl IntoIterator<Item = &Path>,
1518        cx: &mut AsyncApp,
1519    ) -> Entity<Project> {
1520        use clock::FakeSystemClock;
1521
1522        let fs = Arc::new(RealFs::new(None, cx.background_executor().clone()));
1523        let languages = LanguageRegistry::test(cx.background_executor().clone());
1524        let debug_adapters = DapRegistry::default().into();
1525        let clock = Arc::new(FakeSystemClock::new());
1526        let http_client = http_client::FakeHttpClient::with_404_response();
1527        let client = cx
1528            .update(|cx| client::Client::new(clock, http_client.clone(), cx))
1529            .unwrap();
1530        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx)).unwrap();
1531        let project = cx
1532            .update(|cx| {
1533                Project::local(
1534                    client,
1535                    node_runtime::NodeRuntime::unavailable(),
1536                    user_store,
1537                    Arc::new(languages),
1538                    debug_adapters,
1539                    fs,
1540                    None,
1541                    cx,
1542                )
1543            })
1544            .unwrap();
1545        for path in root_paths {
1546            let (tree, _) = project
1547                .update(cx, |project, cx| {
1548                    project.find_or_create_worktree(path, true, cx)
1549                })
1550                .unwrap()
1551                .await
1552                .unwrap();
1553            tree.update(cx, |tree, _| tree.as_local().unwrap().scan_complete())
1554                .unwrap()
1555                .await;
1556        }
1557        project
1558    }
1559
1560    #[cfg(any(test, feature = "test-support"))]
1561    pub async fn test(
1562        fs: Arc<dyn Fs>,
1563        root_paths: impl IntoIterator<Item = &Path>,
1564        cx: &mut gpui::TestAppContext,
1565    ) -> Entity<Project> {
1566        use clock::FakeSystemClock;
1567
1568        let languages = LanguageRegistry::test(cx.executor());
1569        let debug_adapters = DapRegistry::fake();
1570        let clock = Arc::new(FakeSystemClock::new());
1571        let http_client = http_client::FakeHttpClient::with_404_response();
1572        let client = cx.update(|cx| client::Client::new(clock, http_client.clone(), cx));
1573        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
1574        let project = cx.update(|cx| {
1575            Project::local(
1576                client,
1577                node_runtime::NodeRuntime::unavailable(),
1578                user_store,
1579                Arc::new(languages),
1580                Arc::new(debug_adapters),
1581                fs,
1582                None,
1583                cx,
1584            )
1585        });
1586        for path in root_paths {
1587            let (tree, _) = project
1588                .update(cx, |project, cx| {
1589                    project.find_or_create_worktree(path, true, cx)
1590                })
1591                .await
1592                .unwrap();
1593
1594            tree.update(cx, |tree, _| tree.as_local().unwrap().scan_complete())
1595                .await;
1596        }
1597        project
1598    }
1599
1600    pub fn dap_store(&self) -> Entity<DapStore> {
1601        self.dap_store.clone()
1602    }
1603
1604    pub fn breakpoint_store(&self) -> Entity<BreakpointStore> {
1605        self.breakpoint_store.clone()
1606    }
1607
1608    pub fn lsp_store(&self) -> Entity<LspStore> {
1609        self.lsp_store.clone()
1610    }
1611
1612    pub fn worktree_store(&self) -> Entity<WorktreeStore> {
1613        self.worktree_store.clone()
1614    }
1615
1616    pub fn buffer_for_id(&self, remote_id: BufferId, cx: &App) -> Option<Entity<Buffer>> {
1617        self.buffer_store.read(cx).get(remote_id)
1618    }
1619
1620    pub fn languages(&self) -> &Arc<LanguageRegistry> {
1621        &self.languages
1622    }
1623
1624    pub fn debug_adapters(&self) -> &Arc<DapRegistry> {
1625        &self.debug_adapters
1626    }
1627
1628    pub fn client(&self) -> Arc<Client> {
1629        self.client.clone()
1630    }
1631
1632    pub fn ssh_client(&self) -> Option<Entity<SshRemoteClient>> {
1633        self.ssh_client.clone()
1634    }
1635
1636    pub fn user_store(&self) -> Entity<UserStore> {
1637        self.user_store.clone()
1638    }
1639
1640    pub fn node_runtime(&self) -> Option<&NodeRuntime> {
1641        self.node.as_ref()
1642    }
1643
1644    pub fn opened_buffers(&self, cx: &App) -> Vec<Entity<Buffer>> {
1645        self.buffer_store.read(cx).buffers().collect()
1646    }
1647
1648    pub fn environment(&self) -> &Entity<ProjectEnvironment> {
1649        &self.environment
1650    }
1651
1652    pub fn cli_environment(&self, cx: &App) -> Option<HashMap<String, String>> {
1653        self.environment.read(cx).get_cli_environment()
1654    }
1655
1656    pub fn shell_environment_errors<'a>(
1657        &'a self,
1658        cx: &'a App,
1659    ) -> impl Iterator<Item = (&'a WorktreeId, &'a EnvironmentErrorMessage)> {
1660        self.environment.read(cx).environment_errors()
1661    }
1662
1663    pub fn remove_environment_error(&mut self, worktree_id: WorktreeId, cx: &mut Context<Self>) {
1664        self.environment.update(cx, |environment, cx| {
1665            environment.remove_environment_error(worktree_id, cx);
1666        });
1667    }
1668
1669    #[cfg(any(test, feature = "test-support"))]
1670    pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &App) -> bool {
1671        self.buffer_store
1672            .read(cx)
1673            .get_by_path(&path.into(), cx)
1674            .is_some()
1675    }
1676
1677    pub fn fs(&self) -> &Arc<dyn Fs> {
1678        &self.fs
1679    }
1680
1681    pub fn remote_id(&self) -> Option<u64> {
1682        match self.client_state {
1683            ProjectClientState::Local => None,
1684            ProjectClientState::Shared { remote_id, .. }
1685            | ProjectClientState::Remote { remote_id, .. } => Some(remote_id),
1686        }
1687    }
1688
1689    pub fn supports_terminal(&self, _cx: &App) -> bool {
1690        if self.is_local() {
1691            return true;
1692        }
1693        if self.is_via_ssh() {
1694            return true;
1695        }
1696
1697        return false;
1698    }
1699
1700    pub fn ssh_connection_string(&self, cx: &App) -> Option<SharedString> {
1701        if let Some(ssh_state) = &self.ssh_client {
1702            return Some(ssh_state.read(cx).connection_string().into());
1703        }
1704
1705        return None;
1706    }
1707
1708    pub fn ssh_connection_state(&self, cx: &App) -> Option<remote::ConnectionState> {
1709        self.ssh_client
1710            .as_ref()
1711            .map(|ssh| ssh.read(cx).connection_state())
1712    }
1713
1714    pub fn ssh_connection_options(&self, cx: &App) -> Option<SshConnectionOptions> {
1715        self.ssh_client
1716            .as_ref()
1717            .map(|ssh| ssh.read(cx).connection_options())
1718    }
1719
1720    pub fn replica_id(&self) -> ReplicaId {
1721        match self.client_state {
1722            ProjectClientState::Remote { replica_id, .. } => replica_id,
1723            _ => {
1724                if self.ssh_client.is_some() {
1725                    1
1726                } else {
1727                    0
1728                }
1729            }
1730        }
1731    }
1732
1733    pub fn task_store(&self) -> &Entity<TaskStore> {
1734        &self.task_store
1735    }
1736
1737    pub fn snippets(&self) -> &Entity<SnippetProvider> {
1738        &self.snippets
1739    }
1740
1741    pub fn search_history(&self, kind: SearchInputKind) -> &SearchHistory {
1742        match kind {
1743            SearchInputKind::Query => &self.search_history,
1744            SearchInputKind::Include => &self.search_included_history,
1745            SearchInputKind::Exclude => &self.search_excluded_history,
1746        }
1747    }
1748
1749    pub fn search_history_mut(&mut self, kind: SearchInputKind) -> &mut SearchHistory {
1750        match kind {
1751            SearchInputKind::Query => &mut self.search_history,
1752            SearchInputKind::Include => &mut self.search_included_history,
1753            SearchInputKind::Exclude => &mut self.search_excluded_history,
1754        }
1755    }
1756
1757    pub fn collaborators(&self) -> &HashMap<proto::PeerId, Collaborator> {
1758        &self.collaborators
1759    }
1760
1761    pub fn host(&self) -> Option<&Collaborator> {
1762        self.collaborators.values().find(|c| c.is_host)
1763    }
1764
1765    pub fn set_worktrees_reordered(&mut self, worktrees_reordered: bool, cx: &mut App) {
1766        self.worktree_store.update(cx, |store, _| {
1767            store.set_worktrees_reordered(worktrees_reordered);
1768        });
1769    }
1770
1771    /// Collect all worktrees, including ones that don't appear in the project panel
1772    pub fn worktrees<'a>(
1773        &self,
1774        cx: &'a App,
1775    ) -> impl 'a + DoubleEndedIterator<Item = Entity<Worktree>> {
1776        self.worktree_store.read(cx).worktrees()
1777    }
1778
1779    /// Collect all user-visible worktrees, the ones that appear in the project panel.
1780    pub fn visible_worktrees<'a>(
1781        &'a self,
1782        cx: &'a App,
1783    ) -> impl 'a + DoubleEndedIterator<Item = Entity<Worktree>> {
1784        self.worktree_store.read(cx).visible_worktrees(cx)
1785    }
1786
1787    pub fn worktree_for_root_name(&self, root_name: &str, cx: &App) -> Option<Entity<Worktree>> {
1788        self.visible_worktrees(cx)
1789            .find(|tree| tree.read(cx).root_name() == root_name)
1790    }
1791
1792    pub fn worktree_root_names<'a>(&'a self, cx: &'a App) -> impl Iterator<Item = &'a str> {
1793        self.visible_worktrees(cx)
1794            .map(|tree| tree.read(cx).root_name())
1795    }
1796
1797    pub fn worktree_for_id(&self, id: WorktreeId, cx: &App) -> Option<Entity<Worktree>> {
1798        self.worktree_store.read(cx).worktree_for_id(id, cx)
1799    }
1800
1801    pub fn worktree_for_entry(
1802        &self,
1803        entry_id: ProjectEntryId,
1804        cx: &App,
1805    ) -> Option<Entity<Worktree>> {
1806        self.worktree_store
1807            .read(cx)
1808            .worktree_for_entry(entry_id, cx)
1809    }
1810
1811    pub fn worktree_id_for_entry(&self, entry_id: ProjectEntryId, cx: &App) -> Option<WorktreeId> {
1812        self.worktree_for_entry(entry_id, cx)
1813            .map(|worktree| worktree.read(cx).id())
1814    }
1815
1816    /// Checks if the entry is the root of a worktree.
1817    pub fn entry_is_worktree_root(&self, entry_id: ProjectEntryId, cx: &App) -> bool {
1818        self.worktree_for_entry(entry_id, cx)
1819            .map(|worktree| {
1820                worktree
1821                    .read(cx)
1822                    .root_entry()
1823                    .is_some_and(|e| e.id == entry_id)
1824            })
1825            .unwrap_or(false)
1826    }
1827
1828    pub fn project_path_git_status(
1829        &self,
1830        project_path: &ProjectPath,
1831        cx: &App,
1832    ) -> Option<FileStatus> {
1833        self.git_store
1834            .read(cx)
1835            .project_path_git_status(project_path, cx)
1836    }
1837
1838    pub fn visibility_for_paths(
1839        &self,
1840        paths: &[PathBuf],
1841        metadatas: &[Metadata],
1842        exclude_sub_dirs: bool,
1843        cx: &App,
1844    ) -> Option<bool> {
1845        paths
1846            .iter()
1847            .zip(metadatas)
1848            .map(|(path, metadata)| self.visibility_for_path(path, metadata, exclude_sub_dirs, cx))
1849            .max()
1850            .flatten()
1851    }
1852
1853    pub fn visibility_for_path(
1854        &self,
1855        path: &Path,
1856        metadata: &Metadata,
1857        exclude_sub_dirs: bool,
1858        cx: &App,
1859    ) -> Option<bool> {
1860        let sanitized_path = SanitizedPath::from(path);
1861        let path = sanitized_path.as_path();
1862        self.worktrees(cx)
1863            .filter_map(|worktree| {
1864                let worktree = worktree.read(cx);
1865                let abs_path = worktree.as_local()?.abs_path();
1866                let contains = path == abs_path
1867                    || (path.starts_with(abs_path) && (!exclude_sub_dirs || !metadata.is_dir));
1868                contains.then(|| worktree.is_visible())
1869            })
1870            .max()
1871    }
1872
1873    pub fn create_entry(
1874        &mut self,
1875        project_path: impl Into<ProjectPath>,
1876        is_directory: bool,
1877        cx: &mut Context<Self>,
1878    ) -> Task<Result<CreatedEntry>> {
1879        let project_path = project_path.into();
1880        let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) else {
1881            return Task::ready(Err(anyhow!(format!(
1882                "No worktree for path {project_path:?}"
1883            ))));
1884        };
1885        worktree.update(cx, |worktree, cx| {
1886            worktree.create_entry(project_path.path, is_directory, cx)
1887        })
1888    }
1889
1890    pub fn copy_entry(
1891        &mut self,
1892        entry_id: ProjectEntryId,
1893        relative_worktree_source_path: Option<PathBuf>,
1894        new_path: impl Into<Arc<Path>>,
1895        cx: &mut Context<Self>,
1896    ) -> Task<Result<Option<Entry>>> {
1897        let Some(worktree) = self.worktree_for_entry(entry_id, cx) else {
1898            return Task::ready(Ok(None));
1899        };
1900        worktree.update(cx, |worktree, cx| {
1901            worktree.copy_entry(entry_id, relative_worktree_source_path, new_path, cx)
1902        })
1903    }
1904
1905    /// Renames the project entry with given `entry_id`.
1906    ///
1907    /// `new_path` is a relative path to worktree root.
1908    /// If root entry is renamed then its new root name is used instead.
1909    pub fn rename_entry(
1910        &mut self,
1911        entry_id: ProjectEntryId,
1912        new_path: impl Into<Arc<Path>>,
1913        cx: &mut Context<Self>,
1914    ) -> Task<Result<CreatedEntry>> {
1915        let worktree_store = self.worktree_store.read(cx);
1916        let new_path = new_path.into();
1917        let Some((worktree, old_path, is_dir)) = worktree_store
1918            .worktree_and_entry_for_id(entry_id, cx)
1919            .map(|(worktree, entry)| (worktree, entry.path.clone(), entry.is_dir()))
1920        else {
1921            return Task::ready(Err(anyhow!(format!("No worktree for entry {entry_id:?}"))));
1922        };
1923
1924        let worktree_id = worktree.read(cx).id();
1925        let is_root_entry = self.entry_is_worktree_root(entry_id, cx);
1926
1927        let lsp_store = self.lsp_store().downgrade();
1928        cx.spawn(async move |_, cx| {
1929            let (old_abs_path, new_abs_path) = {
1930                let root_path = worktree.update(cx, |this, _| this.abs_path())?;
1931                let new_abs_path = if is_root_entry {
1932                    root_path.parent().unwrap().join(&new_path)
1933                } else {
1934                    root_path.join(&new_path)
1935                };
1936                (root_path.join(&old_path), new_abs_path)
1937            };
1938            LspStore::will_rename_entry(
1939                lsp_store.clone(),
1940                worktree_id,
1941                &old_abs_path,
1942                &new_abs_path,
1943                is_dir,
1944                cx.clone(),
1945            )
1946            .await;
1947
1948            let entry = worktree
1949                .update(cx, |worktree, cx| {
1950                    worktree.rename_entry(entry_id, new_path.clone(), cx)
1951                })?
1952                .await?;
1953
1954            lsp_store
1955                .update(cx, |this, _| {
1956                    this.did_rename_entry(worktree_id, &old_abs_path, &new_abs_path, is_dir);
1957                })
1958                .ok();
1959            Ok(entry)
1960        })
1961    }
1962
1963    pub fn delete_file(
1964        &mut self,
1965        path: ProjectPath,
1966        trash: bool,
1967        cx: &mut Context<Self>,
1968    ) -> Option<Task<Result<()>>> {
1969        let entry = self.entry_for_path(&path, cx)?;
1970        self.delete_entry(entry.id, trash, cx)
1971    }
1972
1973    pub fn delete_entry(
1974        &mut self,
1975        entry_id: ProjectEntryId,
1976        trash: bool,
1977        cx: &mut Context<Self>,
1978    ) -> Option<Task<Result<()>>> {
1979        let worktree = self.worktree_for_entry(entry_id, cx)?;
1980        cx.emit(Event::DeletedEntry(worktree.read(cx).id(), entry_id));
1981        worktree.update(cx, |worktree, cx| {
1982            worktree.delete_entry(entry_id, trash, cx)
1983        })
1984    }
1985
1986    pub fn expand_entry(
1987        &mut self,
1988        worktree_id: WorktreeId,
1989        entry_id: ProjectEntryId,
1990        cx: &mut Context<Self>,
1991    ) -> Option<Task<Result<()>>> {
1992        let worktree = self.worktree_for_id(worktree_id, cx)?;
1993        worktree.update(cx, |worktree, cx| worktree.expand_entry(entry_id, cx))
1994    }
1995
1996    pub fn expand_all_for_entry(
1997        &mut self,
1998        worktree_id: WorktreeId,
1999        entry_id: ProjectEntryId,
2000        cx: &mut Context<Self>,
2001    ) -> Option<Task<Result<()>>> {
2002        let worktree = self.worktree_for_id(worktree_id, cx)?;
2003        let task = worktree.update(cx, |worktree, cx| {
2004            worktree.expand_all_for_entry(entry_id, cx)
2005        });
2006        Some(cx.spawn(async move |this, cx| {
2007            task.ok_or_else(|| anyhow!("no task"))?.await?;
2008            this.update(cx, |_, cx| {
2009                cx.emit(Event::ExpandedAllForEntry(worktree_id, entry_id));
2010            })?;
2011            Ok(())
2012        }))
2013    }
2014
2015    pub fn shared(&mut self, project_id: u64, cx: &mut Context<Self>) -> Result<()> {
2016        if !matches!(self.client_state, ProjectClientState::Local) {
2017            return Err(anyhow!("project was already shared"));
2018        }
2019
2020        self.client_subscriptions.extend([
2021            self.client
2022                .subscribe_to_entity(project_id)?
2023                .set_entity(&cx.entity(), &mut cx.to_async()),
2024            self.client
2025                .subscribe_to_entity(project_id)?
2026                .set_entity(&self.worktree_store, &mut cx.to_async()),
2027            self.client
2028                .subscribe_to_entity(project_id)?
2029                .set_entity(&self.buffer_store, &mut cx.to_async()),
2030            self.client
2031                .subscribe_to_entity(project_id)?
2032                .set_entity(&self.lsp_store, &mut cx.to_async()),
2033            self.client
2034                .subscribe_to_entity(project_id)?
2035                .set_entity(&self.settings_observer, &mut cx.to_async()),
2036            self.client
2037                .subscribe_to_entity(project_id)?
2038                .set_entity(&self.dap_store, &mut cx.to_async()),
2039            self.client
2040                .subscribe_to_entity(project_id)?
2041                .set_entity(&self.breakpoint_store, &mut cx.to_async()),
2042            self.client
2043                .subscribe_to_entity(project_id)?
2044                .set_entity(&self.git_store, &mut cx.to_async()),
2045        ]);
2046
2047        self.buffer_store.update(cx, |buffer_store, cx| {
2048            buffer_store.shared(project_id, self.client.clone().into(), cx)
2049        });
2050        self.worktree_store.update(cx, |worktree_store, cx| {
2051            worktree_store.shared(project_id, self.client.clone().into(), cx);
2052        });
2053        self.lsp_store.update(cx, |lsp_store, cx| {
2054            lsp_store.shared(project_id, self.client.clone().into(), cx)
2055        });
2056        self.breakpoint_store.update(cx, |breakpoint_store, _| {
2057            breakpoint_store.shared(project_id, self.client.clone().into())
2058        });
2059        self.dap_store.update(cx, |dap_store, cx| {
2060            dap_store.shared(project_id, self.client.clone().into(), cx);
2061        });
2062        self.task_store.update(cx, |task_store, cx| {
2063            task_store.shared(project_id, self.client.clone().into(), cx);
2064        });
2065        self.settings_observer.update(cx, |settings_observer, cx| {
2066            settings_observer.shared(project_id, self.client.clone().into(), cx)
2067        });
2068        self.git_store.update(cx, |git_store, cx| {
2069            git_store.shared(project_id, self.client.clone().into(), cx)
2070        });
2071
2072        self.client_state = ProjectClientState::Shared {
2073            remote_id: project_id,
2074        };
2075
2076        cx.emit(Event::RemoteIdChanged(Some(project_id)));
2077        Ok(())
2078    }
2079
2080    pub fn reshared(
2081        &mut self,
2082        message: proto::ResharedProject,
2083        cx: &mut Context<Self>,
2084    ) -> Result<()> {
2085        self.buffer_store
2086            .update(cx, |buffer_store, _| buffer_store.forget_shared_buffers());
2087        self.set_collaborators_from_proto(message.collaborators, cx)?;
2088
2089        self.worktree_store.update(cx, |worktree_store, cx| {
2090            worktree_store.send_project_updates(cx);
2091        });
2092        if let Some(remote_id) = self.remote_id() {
2093            self.git_store.update(cx, |git_store, cx| {
2094                git_store.shared(remote_id, self.client.clone().into(), cx)
2095            });
2096        }
2097        cx.emit(Event::Reshared);
2098        Ok(())
2099    }
2100
2101    pub fn rejoined(
2102        &mut self,
2103        message: proto::RejoinedProject,
2104        message_id: u32,
2105        cx: &mut Context<Self>,
2106    ) -> Result<()> {
2107        cx.update_global::<SettingsStore, _>(|store, cx| {
2108            self.worktree_store.update(cx, |worktree_store, cx| {
2109                for worktree in worktree_store.worktrees() {
2110                    store
2111                        .clear_local_settings(worktree.read(cx).id(), cx)
2112                        .log_err();
2113                }
2114            });
2115        });
2116
2117        self.join_project_response_message_id = message_id;
2118        self.set_worktrees_from_proto(message.worktrees, cx)?;
2119        self.set_collaborators_from_proto(message.collaborators, cx)?;
2120        self.lsp_store.update(cx, |lsp_store, _| {
2121            lsp_store.set_language_server_statuses_from_proto(message.language_servers)
2122        });
2123        self.enqueue_buffer_ordered_message(BufferOrderedMessage::Resync)
2124            .unwrap();
2125        cx.emit(Event::Rejoined);
2126        Ok(())
2127    }
2128
2129    pub fn unshare(&mut self, cx: &mut Context<Self>) -> Result<()> {
2130        self.unshare_internal(cx)?;
2131        cx.emit(Event::RemoteIdChanged(None));
2132        Ok(())
2133    }
2134
2135    fn unshare_internal(&mut self, cx: &mut App) -> Result<()> {
2136        if self.is_via_collab() {
2137            return Err(anyhow!("attempted to unshare a remote project"));
2138        }
2139
2140        if let ProjectClientState::Shared { remote_id, .. } = self.client_state {
2141            self.client_state = ProjectClientState::Local;
2142            self.collaborators.clear();
2143            self.client_subscriptions.clear();
2144            self.worktree_store.update(cx, |store, cx| {
2145                store.unshared(cx);
2146            });
2147            self.buffer_store.update(cx, |buffer_store, cx| {
2148                buffer_store.forget_shared_buffers();
2149                buffer_store.unshared(cx)
2150            });
2151            self.task_store.update(cx, |task_store, cx| {
2152                task_store.unshared(cx);
2153            });
2154            self.breakpoint_store.update(cx, |breakpoint_store, cx| {
2155                breakpoint_store.unshared(cx);
2156            });
2157            self.dap_store.update(cx, |dap_store, cx| {
2158                dap_store.unshared(cx);
2159            });
2160            self.settings_observer.update(cx, |settings_observer, cx| {
2161                settings_observer.unshared(cx);
2162            });
2163            self.git_store.update(cx, |git_store, cx| {
2164                git_store.unshared(cx);
2165            });
2166
2167            self.client
2168                .send(proto::UnshareProject {
2169                    project_id: remote_id,
2170                })
2171                .ok();
2172            Ok(())
2173        } else {
2174            Err(anyhow!("attempted to unshare an unshared project"))
2175        }
2176    }
2177
2178    pub fn disconnected_from_host(&mut self, cx: &mut Context<Self>) {
2179        if self.is_disconnected(cx) {
2180            return;
2181        }
2182        self.disconnected_from_host_internal(cx);
2183        cx.emit(Event::DisconnectedFromHost);
2184    }
2185
2186    pub fn set_role(&mut self, role: proto::ChannelRole, cx: &mut Context<Self>) {
2187        let new_capability =
2188            if role == proto::ChannelRole::Member || role == proto::ChannelRole::Admin {
2189                Capability::ReadWrite
2190            } else {
2191                Capability::ReadOnly
2192            };
2193        if let ProjectClientState::Remote { capability, .. } = &mut self.client_state {
2194            if *capability == new_capability {
2195                return;
2196            }
2197
2198            *capability = new_capability;
2199            for buffer in self.opened_buffers(cx) {
2200                buffer.update(cx, |buffer, cx| buffer.set_capability(new_capability, cx));
2201            }
2202        }
2203    }
2204
2205    fn disconnected_from_host_internal(&mut self, cx: &mut App) {
2206        if let ProjectClientState::Remote {
2207            sharing_has_stopped,
2208            ..
2209        } = &mut self.client_state
2210        {
2211            *sharing_has_stopped = true;
2212            self.collaborators.clear();
2213            self.worktree_store.update(cx, |store, cx| {
2214                store.disconnected_from_host(cx);
2215            });
2216            self.buffer_store.update(cx, |buffer_store, cx| {
2217                buffer_store.disconnected_from_host(cx)
2218            });
2219            self.lsp_store
2220                .update(cx, |lsp_store, _cx| lsp_store.disconnected_from_host());
2221        }
2222    }
2223
2224    pub fn close(&mut self, cx: &mut Context<Self>) {
2225        cx.emit(Event::Closed);
2226    }
2227
2228    pub fn is_disconnected(&self, cx: &App) -> bool {
2229        match &self.client_state {
2230            ProjectClientState::Remote {
2231                sharing_has_stopped,
2232                ..
2233            } => *sharing_has_stopped,
2234            ProjectClientState::Local if self.is_via_ssh() => self.ssh_is_disconnected(cx),
2235            _ => false,
2236        }
2237    }
2238
2239    fn ssh_is_disconnected(&self, cx: &App) -> bool {
2240        self.ssh_client
2241            .as_ref()
2242            .map(|ssh| ssh.read(cx).is_disconnected())
2243            .unwrap_or(false)
2244    }
2245
2246    pub fn capability(&self) -> Capability {
2247        match &self.client_state {
2248            ProjectClientState::Remote { capability, .. } => *capability,
2249            ProjectClientState::Shared { .. } | ProjectClientState::Local => Capability::ReadWrite,
2250        }
2251    }
2252
2253    pub fn is_read_only(&self, cx: &App) -> bool {
2254        self.is_disconnected(cx) || self.capability() == Capability::ReadOnly
2255    }
2256
2257    pub fn is_local(&self) -> bool {
2258        match &self.client_state {
2259            ProjectClientState::Local | ProjectClientState::Shared { .. } => {
2260                self.ssh_client.is_none()
2261            }
2262            ProjectClientState::Remote { .. } => false,
2263        }
2264    }
2265
2266    pub fn is_via_ssh(&self) -> bool {
2267        match &self.client_state {
2268            ProjectClientState::Local | ProjectClientState::Shared { .. } => {
2269                self.ssh_client.is_some()
2270            }
2271            ProjectClientState::Remote { .. } => false,
2272        }
2273    }
2274
2275    pub fn is_via_collab(&self) -> bool {
2276        match &self.client_state {
2277            ProjectClientState::Local | ProjectClientState::Shared { .. } => false,
2278            ProjectClientState::Remote { .. } => true,
2279        }
2280    }
2281
2282    pub fn create_buffer(&mut self, cx: &mut Context<Self>) -> Task<Result<Entity<Buffer>>> {
2283        self.buffer_store
2284            .update(cx, |buffer_store, cx| buffer_store.create_buffer(cx))
2285    }
2286
2287    pub fn create_local_buffer(
2288        &mut self,
2289        text: &str,
2290        language: Option<Arc<Language>>,
2291        cx: &mut Context<Self>,
2292    ) -> Entity<Buffer> {
2293        if self.is_via_collab() || self.is_via_ssh() {
2294            panic!("called create_local_buffer on a remote project")
2295        }
2296        self.buffer_store.update(cx, |buffer_store, cx| {
2297            buffer_store.create_local_buffer(text, language, cx)
2298        })
2299    }
2300
2301    pub fn open_path(
2302        &mut self,
2303        path: ProjectPath,
2304        cx: &mut Context<Self>,
2305    ) -> Task<Result<(Option<ProjectEntryId>, AnyEntity)>> {
2306        let task = self.open_buffer(path.clone(), cx);
2307        cx.spawn(async move |_project, cx| {
2308            let buffer = task.await?;
2309            let project_entry_id = buffer.read_with(cx, |buffer, cx| {
2310                File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
2311            })?;
2312
2313            let buffer: &AnyEntity = &buffer;
2314            Ok((project_entry_id, buffer.clone()))
2315        })
2316    }
2317
2318    pub fn open_local_buffer(
2319        &mut self,
2320        abs_path: impl AsRef<Path>,
2321        cx: &mut Context<Self>,
2322    ) -> Task<Result<Entity<Buffer>>> {
2323        if let Some((worktree, relative_path)) = self.find_worktree(abs_path.as_ref(), cx) {
2324            self.open_buffer((worktree.read(cx).id(), relative_path), cx)
2325        } else {
2326            Task::ready(Err(anyhow!("no such path")))
2327        }
2328    }
2329
2330    #[cfg(any(test, feature = "test-support"))]
2331    pub fn open_local_buffer_with_lsp(
2332        &mut self,
2333        abs_path: impl AsRef<Path>,
2334        cx: &mut Context<Self>,
2335    ) -> Task<Result<(Entity<Buffer>, lsp_store::OpenLspBufferHandle)>> {
2336        if let Some((worktree, relative_path)) = self.find_worktree(abs_path.as_ref(), cx) {
2337            self.open_buffer_with_lsp((worktree.read(cx).id(), relative_path), cx)
2338        } else {
2339            Task::ready(Err(anyhow!("no such path")))
2340        }
2341    }
2342
2343    pub fn open_buffer(
2344        &mut self,
2345        path: impl Into<ProjectPath>,
2346        cx: &mut App,
2347    ) -> Task<Result<Entity<Buffer>>> {
2348        if self.is_disconnected(cx) {
2349            return Task::ready(Err(anyhow!(ErrorCode::Disconnected)));
2350        }
2351
2352        self.buffer_store.update(cx, |buffer_store, cx| {
2353            buffer_store.open_buffer(path.into(), cx)
2354        })
2355    }
2356
2357    #[cfg(any(test, feature = "test-support"))]
2358    pub fn open_buffer_with_lsp(
2359        &mut self,
2360        path: impl Into<ProjectPath>,
2361        cx: &mut Context<Self>,
2362    ) -> Task<Result<(Entity<Buffer>, lsp_store::OpenLspBufferHandle)>> {
2363        let buffer = self.open_buffer(path, cx);
2364        cx.spawn(async move |this, cx| {
2365            let buffer = buffer.await?;
2366            let handle = this.update(cx, |project, cx| {
2367                project.register_buffer_with_language_servers(&buffer, cx)
2368            })?;
2369            Ok((buffer, handle))
2370        })
2371    }
2372
2373    pub fn register_buffer_with_language_servers(
2374        &self,
2375        buffer: &Entity<Buffer>,
2376        cx: &mut App,
2377    ) -> OpenLspBufferHandle {
2378        self.lsp_store.update(cx, |lsp_store, cx| {
2379            lsp_store.register_buffer_with_language_servers(&buffer, false, cx)
2380        })
2381    }
2382
2383    pub fn open_unstaged_diff(
2384        &mut self,
2385        buffer: Entity<Buffer>,
2386        cx: &mut Context<Self>,
2387    ) -> Task<Result<Entity<BufferDiff>>> {
2388        if self.is_disconnected(cx) {
2389            return Task::ready(Err(anyhow!(ErrorCode::Disconnected)));
2390        }
2391        self.git_store
2392            .update(cx, |git_store, cx| git_store.open_unstaged_diff(buffer, cx))
2393    }
2394
2395    pub fn open_uncommitted_diff(
2396        &mut self,
2397        buffer: Entity<Buffer>,
2398        cx: &mut Context<Self>,
2399    ) -> Task<Result<Entity<BufferDiff>>> {
2400        if self.is_disconnected(cx) {
2401            return Task::ready(Err(anyhow!(ErrorCode::Disconnected)));
2402        }
2403        self.git_store.update(cx, |git_store, cx| {
2404            git_store.open_uncommitted_diff(buffer, cx)
2405        })
2406    }
2407
2408    pub fn open_buffer_by_id(
2409        &mut self,
2410        id: BufferId,
2411        cx: &mut Context<Self>,
2412    ) -> Task<Result<Entity<Buffer>>> {
2413        if let Some(buffer) = self.buffer_for_id(id, cx) {
2414            Task::ready(Ok(buffer))
2415        } else if self.is_local() || self.is_via_ssh() {
2416            Task::ready(Err(anyhow!("buffer {} does not exist", id)))
2417        } else if let Some(project_id) = self.remote_id() {
2418            let request = self.client.request(proto::OpenBufferById {
2419                project_id,
2420                id: id.into(),
2421            });
2422            cx.spawn(async move |project, cx| {
2423                let buffer_id = BufferId::new(request.await?.buffer_id)?;
2424                project
2425                    .update(cx, |project, cx| {
2426                        project.buffer_store.update(cx, |buffer_store, cx| {
2427                            buffer_store.wait_for_remote_buffer(buffer_id, cx)
2428                        })
2429                    })?
2430                    .await
2431            })
2432        } else {
2433            Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
2434        }
2435    }
2436
2437    pub fn save_buffers(
2438        &self,
2439        buffers: HashSet<Entity<Buffer>>,
2440        cx: &mut Context<Self>,
2441    ) -> Task<Result<()>> {
2442        cx.spawn(async move |this, cx| {
2443            let save_tasks = buffers.into_iter().filter_map(|buffer| {
2444                this.update(cx, |this, cx| this.save_buffer(buffer, cx))
2445                    .ok()
2446            });
2447            try_join_all(save_tasks).await?;
2448            Ok(())
2449        })
2450    }
2451
2452    pub fn save_buffer(&self, buffer: Entity<Buffer>, cx: &mut Context<Self>) -> Task<Result<()>> {
2453        self.buffer_store
2454            .update(cx, |buffer_store, cx| buffer_store.save_buffer(buffer, cx))
2455    }
2456
2457    pub fn save_buffer_as(
2458        &mut self,
2459        buffer: Entity<Buffer>,
2460        path: ProjectPath,
2461        cx: &mut Context<Self>,
2462    ) -> Task<Result<()>> {
2463        self.buffer_store.update(cx, |buffer_store, cx| {
2464            buffer_store.save_buffer_as(buffer.clone(), path, cx)
2465        })
2466    }
2467
2468    pub fn get_open_buffer(&self, path: &ProjectPath, cx: &App) -> Option<Entity<Buffer>> {
2469        self.buffer_store.read(cx).get_by_path(path, cx)
2470    }
2471
2472    fn register_buffer(&mut self, buffer: &Entity<Buffer>, cx: &mut Context<Self>) -> Result<()> {
2473        {
2474            let mut remotely_created_models = self.remotely_created_models.lock();
2475            if remotely_created_models.retain_count > 0 {
2476                remotely_created_models.buffers.push(buffer.clone())
2477            }
2478        }
2479
2480        self.request_buffer_diff_recalculation(buffer, cx);
2481
2482        cx.subscribe(buffer, |this, buffer, event, cx| {
2483            this.on_buffer_event(buffer, event, cx);
2484        })
2485        .detach();
2486
2487        Ok(())
2488    }
2489
2490    pub fn open_image(
2491        &mut self,
2492        path: impl Into<ProjectPath>,
2493        cx: &mut Context<Self>,
2494    ) -> Task<Result<Entity<ImageItem>>> {
2495        if self.is_disconnected(cx) {
2496            return Task::ready(Err(anyhow!(ErrorCode::Disconnected)));
2497        }
2498
2499        let open_image_task = self.image_store.update(cx, |image_store, cx| {
2500            image_store.open_image(path.into(), cx)
2501        });
2502
2503        let weak_project = cx.entity().downgrade();
2504        cx.spawn(async move |_, cx| {
2505            let image_item = open_image_task.await?;
2506            let project = weak_project
2507                .upgrade()
2508                .ok_or_else(|| anyhow!("Project dropped"))?;
2509
2510            let metadata = ImageItem::load_image_metadata(image_item.clone(), project, cx).await?;
2511            image_item.update(cx, |image_item, cx| {
2512                image_item.image_metadata = Some(metadata);
2513                cx.emit(ImageItemEvent::MetadataUpdated);
2514            })?;
2515
2516            Ok(image_item)
2517        })
2518    }
2519
2520    async fn send_buffer_ordered_messages(
2521        this: WeakEntity<Self>,
2522        rx: UnboundedReceiver<BufferOrderedMessage>,
2523        cx: &mut AsyncApp,
2524    ) -> Result<()> {
2525        const MAX_BATCH_SIZE: usize = 128;
2526
2527        let mut operations_by_buffer_id = HashMap::default();
2528        async fn flush_operations(
2529            this: &WeakEntity<Project>,
2530            operations_by_buffer_id: &mut HashMap<BufferId, Vec<proto::Operation>>,
2531            needs_resync_with_host: &mut bool,
2532            is_local: bool,
2533            cx: &mut AsyncApp,
2534        ) -> Result<()> {
2535            for (buffer_id, operations) in operations_by_buffer_id.drain() {
2536                let request = this.update(cx, |this, _| {
2537                    let project_id = this.remote_id()?;
2538                    Some(this.client.request(proto::UpdateBuffer {
2539                        buffer_id: buffer_id.into(),
2540                        project_id,
2541                        operations,
2542                    }))
2543                })?;
2544                if let Some(request) = request {
2545                    if request.await.is_err() && !is_local {
2546                        *needs_resync_with_host = true;
2547                        break;
2548                    }
2549                }
2550            }
2551            Ok(())
2552        }
2553
2554        let mut needs_resync_with_host = false;
2555        let mut changes = rx.ready_chunks(MAX_BATCH_SIZE);
2556
2557        while let Some(changes) = changes.next().await {
2558            let is_local = this.update(cx, |this, _| this.is_local())?;
2559
2560            for change in changes {
2561                match change {
2562                    BufferOrderedMessage::Operation {
2563                        buffer_id,
2564                        operation,
2565                    } => {
2566                        if needs_resync_with_host {
2567                            continue;
2568                        }
2569
2570                        operations_by_buffer_id
2571                            .entry(buffer_id)
2572                            .or_insert(Vec::new())
2573                            .push(operation);
2574                    }
2575
2576                    BufferOrderedMessage::Resync => {
2577                        operations_by_buffer_id.clear();
2578                        if this
2579                            .update(cx, |this, cx| this.synchronize_remote_buffers(cx))?
2580                            .await
2581                            .is_ok()
2582                        {
2583                            needs_resync_with_host = false;
2584                        }
2585                    }
2586
2587                    BufferOrderedMessage::LanguageServerUpdate {
2588                        language_server_id,
2589                        message,
2590                    } => {
2591                        flush_operations(
2592                            &this,
2593                            &mut operations_by_buffer_id,
2594                            &mut needs_resync_with_host,
2595                            is_local,
2596                            cx,
2597                        )
2598                        .await?;
2599
2600                        this.update(cx, |this, _| {
2601                            if let Some(project_id) = this.remote_id() {
2602                                this.client
2603                                    .send(proto::UpdateLanguageServer {
2604                                        project_id,
2605                                        language_server_id: language_server_id.0 as u64,
2606                                        variant: Some(message),
2607                                    })
2608                                    .log_err();
2609                            }
2610                        })?;
2611                    }
2612                }
2613            }
2614
2615            flush_operations(
2616                &this,
2617                &mut operations_by_buffer_id,
2618                &mut needs_resync_with_host,
2619                is_local,
2620                cx,
2621            )
2622            .await?;
2623        }
2624
2625        Ok(())
2626    }
2627
2628    fn on_buffer_store_event(
2629        &mut self,
2630        _: Entity<BufferStore>,
2631        event: &BufferStoreEvent,
2632        cx: &mut Context<Self>,
2633    ) {
2634        match event {
2635            BufferStoreEvent::BufferAdded(buffer) => {
2636                self.register_buffer(buffer, cx).log_err();
2637            }
2638            BufferStoreEvent::BufferDropped(buffer_id) => {
2639                if let Some(ref ssh_client) = self.ssh_client {
2640                    ssh_client
2641                        .read(cx)
2642                        .proto_client()
2643                        .send(proto::CloseBuffer {
2644                            project_id: 0,
2645                            buffer_id: buffer_id.to_proto(),
2646                        })
2647                        .log_err();
2648                }
2649            }
2650            _ => {}
2651        }
2652    }
2653
2654    fn on_image_store_event(
2655        &mut self,
2656        _: Entity<ImageStore>,
2657        event: &ImageStoreEvent,
2658        cx: &mut Context<Self>,
2659    ) {
2660        match event {
2661            ImageStoreEvent::ImageAdded(image) => {
2662                cx.subscribe(image, |this, image, event, cx| {
2663                    this.on_image_event(image, event, cx);
2664                })
2665                .detach();
2666            }
2667        }
2668    }
2669
2670    fn on_dap_store_event(
2671        &mut self,
2672        _: Entity<DapStore>,
2673        event: &DapStoreEvent,
2674        cx: &mut Context<Self>,
2675    ) {
2676        match event {
2677            DapStoreEvent::Notification(message) => {
2678                cx.emit(Event::Toast {
2679                    notification_id: "dap".into(),
2680                    message: message.clone(),
2681                });
2682            }
2683            _ => {}
2684        }
2685    }
2686
2687    fn on_lsp_store_event(
2688        &mut self,
2689        _: Entity<LspStore>,
2690        event: &LspStoreEvent,
2691        cx: &mut Context<Self>,
2692    ) {
2693        match event {
2694            LspStoreEvent::DiagnosticsUpdated {
2695                language_server_id,
2696                path,
2697            } => cx.emit(Event::DiagnosticsUpdated {
2698                path: path.clone(),
2699                language_server_id: *language_server_id,
2700            }),
2701            LspStoreEvent::LanguageServerAdded(language_server_id, name, worktree_id) => cx.emit(
2702                Event::LanguageServerAdded(*language_server_id, name.clone(), *worktree_id),
2703            ),
2704            LspStoreEvent::LanguageServerRemoved(language_server_id) => {
2705                cx.emit(Event::LanguageServerRemoved(*language_server_id))
2706            }
2707            LspStoreEvent::LanguageServerLog(server_id, log_type, string) => cx.emit(
2708                Event::LanguageServerLog(*server_id, log_type.clone(), string.clone()),
2709            ),
2710            LspStoreEvent::LanguageDetected {
2711                buffer,
2712                new_language,
2713            } => {
2714                let Some(_) = new_language else {
2715                    cx.emit(Event::LanguageNotFound(buffer.clone()));
2716                    return;
2717                };
2718            }
2719            LspStoreEvent::RefreshInlayHints => cx.emit(Event::RefreshInlayHints),
2720            LspStoreEvent::RefreshCodeLens => cx.emit(Event::RefreshCodeLens),
2721            LspStoreEvent::LanguageServerPrompt(prompt) => {
2722                cx.emit(Event::LanguageServerPrompt(prompt.clone()))
2723            }
2724            LspStoreEvent::DiskBasedDiagnosticsStarted { language_server_id } => {
2725                cx.emit(Event::DiskBasedDiagnosticsStarted {
2726                    language_server_id: *language_server_id,
2727                });
2728            }
2729            LspStoreEvent::DiskBasedDiagnosticsFinished { language_server_id } => {
2730                cx.emit(Event::DiskBasedDiagnosticsFinished {
2731                    language_server_id: *language_server_id,
2732                });
2733            }
2734            LspStoreEvent::LanguageServerUpdate {
2735                language_server_id,
2736                message,
2737            } => {
2738                if self.is_local() {
2739                    self.enqueue_buffer_ordered_message(
2740                        BufferOrderedMessage::LanguageServerUpdate {
2741                            language_server_id: *language_server_id,
2742                            message: message.clone(),
2743                        },
2744                    )
2745                    .ok();
2746                }
2747            }
2748            LspStoreEvent::Notification(message) => cx.emit(Event::Toast {
2749                notification_id: "lsp".into(),
2750                message: message.clone(),
2751            }),
2752            LspStoreEvent::SnippetEdit {
2753                buffer_id,
2754                edits,
2755                most_recent_edit,
2756            } => {
2757                if most_recent_edit.replica_id == self.replica_id() {
2758                    cx.emit(Event::SnippetEdit(*buffer_id, edits.clone()))
2759                }
2760            }
2761        }
2762    }
2763
2764    fn on_git_store_event(
2765        &mut self,
2766        _: Entity<GitStore>,
2767        event: &GitEvent,
2768        cx: &mut Context<Self>,
2769    ) {
2770        match event {
2771            GitEvent::GitStateUpdated => cx.emit(Event::GitStateUpdated),
2772            GitEvent::ActiveRepositoryChanged => cx.emit(Event::ActiveRepositoryChanged),
2773            GitEvent::FileSystemUpdated | GitEvent::IndexWriteError(_) => {}
2774        }
2775    }
2776
2777    fn on_ssh_event(
2778        &mut self,
2779        _: Entity<SshRemoteClient>,
2780        event: &remote::SshRemoteEvent,
2781        cx: &mut Context<Self>,
2782    ) {
2783        match event {
2784            remote::SshRemoteEvent::Disconnected => {
2785                // if self.is_via_ssh() {
2786                // self.collaborators.clear();
2787                self.worktree_store.update(cx, |store, cx| {
2788                    store.disconnected_from_host(cx);
2789                });
2790                self.buffer_store.update(cx, |buffer_store, cx| {
2791                    buffer_store.disconnected_from_host(cx)
2792                });
2793                self.lsp_store.update(cx, |lsp_store, _cx| {
2794                    lsp_store.disconnected_from_ssh_remote()
2795                });
2796                cx.emit(Event::DisconnectedFromSshRemote);
2797            }
2798        }
2799    }
2800
2801    fn on_settings_observer_event(
2802        &mut self,
2803        _: Entity<SettingsObserver>,
2804        event: &SettingsObserverEvent,
2805        cx: &mut Context<Self>,
2806    ) {
2807        match event {
2808            SettingsObserverEvent::LocalSettingsUpdated(result) => match result {
2809                Err(InvalidSettingsError::LocalSettings { message, path }) => {
2810                    let message = format!("Failed to set local settings in {path:?}:\n{message}");
2811                    cx.emit(Event::Toast {
2812                        notification_id: format!("local-settings-{path:?}").into(),
2813                        message,
2814                    });
2815                }
2816                Ok(path) => cx.emit(Event::HideToast {
2817                    notification_id: format!("local-settings-{path:?}").into(),
2818                }),
2819                Err(_) => {}
2820            },
2821            SettingsObserverEvent::LocalTasksUpdated(result) => match result {
2822                Err(InvalidSettingsError::Tasks { message, path }) => {
2823                    let message = format!("Failed to set local tasks in {path:?}:\n{message}");
2824                    cx.emit(Event::Toast {
2825                        notification_id: format!("local-tasks-{path:?}").into(),
2826                        message,
2827                    });
2828                }
2829                Ok(path) => cx.emit(Event::HideToast {
2830                    notification_id: format!("local-tasks-{path:?}").into(),
2831                }),
2832                Err(_) => {}
2833            },
2834        }
2835    }
2836
2837    fn on_worktree_store_event(
2838        &mut self,
2839        _: Entity<WorktreeStore>,
2840        event: &WorktreeStoreEvent,
2841        cx: &mut Context<Self>,
2842    ) {
2843        match event {
2844            WorktreeStoreEvent::WorktreeAdded(worktree) => {
2845                self.on_worktree_added(worktree, cx);
2846                cx.emit(Event::WorktreeAdded(worktree.read(cx).id()));
2847            }
2848            WorktreeStoreEvent::WorktreeRemoved(_, id) => {
2849                cx.emit(Event::WorktreeRemoved(*id));
2850            }
2851            WorktreeStoreEvent::WorktreeReleased(_, id) => {
2852                self.on_worktree_released(*id, cx);
2853            }
2854            WorktreeStoreEvent::WorktreeOrderChanged => cx.emit(Event::WorktreeOrderChanged),
2855            WorktreeStoreEvent::WorktreeUpdateSent(_) => {}
2856            WorktreeStoreEvent::WorktreeUpdatedEntries(worktree_id, changes) => {
2857                self.client()
2858                    .telemetry()
2859                    .report_discovered_project_events(*worktree_id, changes);
2860                cx.emit(Event::WorktreeUpdatedEntries(*worktree_id, changes.clone()))
2861            }
2862            WorktreeStoreEvent::WorktreeDeletedEntry(worktree_id, id) => {
2863                cx.emit(Event::DeletedEntry(*worktree_id, *id))
2864            }
2865            // Listen to the GitStore instead.
2866            WorktreeStoreEvent::WorktreeUpdatedGitRepositories(_, _) => {}
2867        }
2868    }
2869
2870    fn on_worktree_added(&mut self, worktree: &Entity<Worktree>, _: &mut Context<Self>) {
2871        let mut remotely_created_models = self.remotely_created_models.lock();
2872        if remotely_created_models.retain_count > 0 {
2873            remotely_created_models.worktrees.push(worktree.clone())
2874        }
2875    }
2876
2877    fn on_worktree_released(&mut self, id_to_remove: WorktreeId, cx: &mut Context<Self>) {
2878        if let Some(ssh) = &self.ssh_client {
2879            ssh.read(cx)
2880                .proto_client()
2881                .send(proto::RemoveWorktree {
2882                    worktree_id: id_to_remove.to_proto(),
2883                })
2884                .log_err();
2885        }
2886    }
2887
2888    fn on_buffer_event(
2889        &mut self,
2890        buffer: Entity<Buffer>,
2891        event: &BufferEvent,
2892        cx: &mut Context<Self>,
2893    ) -> Option<()> {
2894        if matches!(event, BufferEvent::Edited { .. } | BufferEvent::Reloaded) {
2895            self.request_buffer_diff_recalculation(&buffer, cx);
2896        }
2897
2898        let buffer_id = buffer.read(cx).remote_id();
2899        match event {
2900            BufferEvent::ReloadNeeded => {
2901                if !self.is_via_collab() {
2902                    self.reload_buffers([buffer.clone()].into_iter().collect(), true, cx)
2903                        .detach_and_log_err(cx);
2904                }
2905            }
2906            BufferEvent::Operation {
2907                operation,
2908                is_local: true,
2909            } => {
2910                let operation = language::proto::serialize_operation(operation);
2911
2912                if let Some(ssh) = &self.ssh_client {
2913                    ssh.read(cx)
2914                        .proto_client()
2915                        .send(proto::UpdateBuffer {
2916                            project_id: 0,
2917                            buffer_id: buffer_id.to_proto(),
2918                            operations: vec![operation.clone()],
2919                        })
2920                        .ok();
2921                }
2922
2923                self.enqueue_buffer_ordered_message(BufferOrderedMessage::Operation {
2924                    buffer_id,
2925                    operation,
2926                })
2927                .ok();
2928            }
2929
2930            _ => {}
2931        }
2932
2933        None
2934    }
2935
2936    fn on_image_event(
2937        &mut self,
2938        image: Entity<ImageItem>,
2939        event: &ImageItemEvent,
2940        cx: &mut Context<Self>,
2941    ) -> Option<()> {
2942        match event {
2943            ImageItemEvent::ReloadNeeded => {
2944                if !self.is_via_collab() {
2945                    self.reload_images([image.clone()].into_iter().collect(), cx)
2946                        .detach_and_log_err(cx);
2947                }
2948            }
2949            _ => {}
2950        }
2951
2952        None
2953    }
2954
2955    fn request_buffer_diff_recalculation(
2956        &mut self,
2957        buffer: &Entity<Buffer>,
2958        cx: &mut Context<Self>,
2959    ) {
2960        self.buffers_needing_diff.insert(buffer.downgrade());
2961        let first_insertion = self.buffers_needing_diff.len() == 1;
2962
2963        let settings = ProjectSettings::get_global(cx);
2964        let delay = if let Some(delay) = settings.git.gutter_debounce {
2965            delay
2966        } else {
2967            if first_insertion {
2968                let this = cx.weak_entity();
2969                cx.defer(move |cx| {
2970                    if let Some(this) = this.upgrade() {
2971                        this.update(cx, |this, cx| {
2972                            this.recalculate_buffer_diffs(cx).detach();
2973                        });
2974                    }
2975                });
2976            }
2977            return;
2978        };
2979
2980        const MIN_DELAY: u64 = 50;
2981        let delay = delay.max(MIN_DELAY);
2982        let duration = Duration::from_millis(delay);
2983
2984        self.git_diff_debouncer
2985            .fire_new(duration, cx, move |this, cx| {
2986                this.recalculate_buffer_diffs(cx)
2987            });
2988    }
2989
2990    fn recalculate_buffer_diffs(&mut self, cx: &mut Context<Self>) -> Task<()> {
2991        cx.spawn(async move |this, cx| loop {
2992            let task = this
2993                .update(cx, |this, cx| {
2994                    let buffers = this
2995                        .buffers_needing_diff
2996                        .drain()
2997                        .filter_map(|buffer| buffer.upgrade())
2998                        .collect::<Vec<_>>();
2999                    if buffers.is_empty() {
3000                        None
3001                    } else {
3002                        Some(this.git_store.update(cx, |git_store, cx| {
3003                            git_store.recalculate_buffer_diffs(buffers, cx)
3004                        }))
3005                    }
3006                })
3007                .ok()
3008                .flatten();
3009
3010            if let Some(task) = task {
3011                task.await;
3012            } else {
3013                break;
3014            }
3015        })
3016    }
3017
3018    pub fn set_language_for_buffer(
3019        &mut self,
3020        buffer: &Entity<Buffer>,
3021        new_language: Arc<Language>,
3022        cx: &mut Context<Self>,
3023    ) {
3024        self.lsp_store.update(cx, |lsp_store, cx| {
3025            lsp_store.set_language_for_buffer(buffer, new_language, cx)
3026        })
3027    }
3028
3029    pub fn restart_language_servers_for_buffers(
3030        &mut self,
3031        buffers: Vec<Entity<Buffer>>,
3032        cx: &mut Context<Self>,
3033    ) {
3034        self.lsp_store.update(cx, |lsp_store, cx| {
3035            lsp_store.restart_language_servers_for_buffers(buffers, cx)
3036        })
3037    }
3038
3039    pub fn cancel_language_server_work_for_buffers(
3040        &mut self,
3041        buffers: impl IntoIterator<Item = Entity<Buffer>>,
3042        cx: &mut Context<Self>,
3043    ) {
3044        self.lsp_store.update(cx, |lsp_store, cx| {
3045            lsp_store.cancel_language_server_work_for_buffers(buffers, cx)
3046        })
3047    }
3048
3049    pub fn cancel_language_server_work(
3050        &mut self,
3051        server_id: LanguageServerId,
3052        token_to_cancel: Option<String>,
3053        cx: &mut Context<Self>,
3054    ) {
3055        self.lsp_store.update(cx, |lsp_store, cx| {
3056            lsp_store.cancel_language_server_work(server_id, token_to_cancel, cx)
3057        })
3058    }
3059
3060    fn enqueue_buffer_ordered_message(&mut self, message: BufferOrderedMessage) -> Result<()> {
3061        self.buffer_ordered_messages_tx
3062            .unbounded_send(message)
3063            .map_err(|e| anyhow!(e))
3064    }
3065
3066    pub fn available_toolchains(
3067        &self,
3068        worktree_id: WorktreeId,
3069        language_name: LanguageName,
3070        cx: &App,
3071    ) -> Task<Option<ToolchainList>> {
3072        if let Some(toolchain_store) = self.toolchain_store.clone() {
3073            cx.spawn(async move |cx| {
3074                cx.update(|cx| {
3075                    toolchain_store
3076                        .read(cx)
3077                        .list_toolchains(worktree_id, language_name, cx)
3078                })
3079                .ok()?
3080                .await
3081            })
3082        } else {
3083            Task::ready(None)
3084        }
3085    }
3086
3087    pub async fn toolchain_term(
3088        languages: Arc<LanguageRegistry>,
3089        language_name: LanguageName,
3090    ) -> Option<SharedString> {
3091        languages
3092            .language_for_name(language_name.as_ref())
3093            .await
3094            .ok()?
3095            .toolchain_lister()
3096            .map(|lister| lister.term())
3097    }
3098
3099    pub fn activate_toolchain(
3100        &self,
3101        worktree_id: WorktreeId,
3102        toolchain: Toolchain,
3103        cx: &mut App,
3104    ) -> Task<Option<()>> {
3105        let Some(toolchain_store) = self.toolchain_store.clone() else {
3106            return Task::ready(None);
3107        };
3108        toolchain_store.update(cx, |this, cx| {
3109            this.activate_toolchain(worktree_id, toolchain, cx)
3110        })
3111    }
3112    pub fn active_toolchain(
3113        &self,
3114        worktree_id: WorktreeId,
3115        language_name: LanguageName,
3116        cx: &App,
3117    ) -> Task<Option<Toolchain>> {
3118        let Some(toolchain_store) = self.toolchain_store.clone() else {
3119            return Task::ready(None);
3120        };
3121        toolchain_store
3122            .read(cx)
3123            .active_toolchain(worktree_id, language_name, cx)
3124    }
3125    pub fn language_server_statuses<'a>(
3126        &'a self,
3127        cx: &'a App,
3128    ) -> impl DoubleEndedIterator<Item = (LanguageServerId, &'a LanguageServerStatus)> {
3129        self.lsp_store.read(cx).language_server_statuses()
3130    }
3131
3132    pub fn last_formatting_failure<'a>(&self, cx: &'a App) -> Option<&'a str> {
3133        self.lsp_store.read(cx).last_formatting_failure()
3134    }
3135
3136    pub fn reset_last_formatting_failure(&self, cx: &mut App) {
3137        self.lsp_store
3138            .update(cx, |store, _| store.reset_last_formatting_failure());
3139    }
3140
3141    pub fn reload_buffers(
3142        &self,
3143        buffers: HashSet<Entity<Buffer>>,
3144        push_to_history: bool,
3145        cx: &mut Context<Self>,
3146    ) -> Task<Result<ProjectTransaction>> {
3147        self.buffer_store.update(cx, |buffer_store, cx| {
3148            buffer_store.reload_buffers(buffers, push_to_history, cx)
3149        })
3150    }
3151
3152    pub fn reload_images(
3153        &self,
3154        images: HashSet<Entity<ImageItem>>,
3155        cx: &mut Context<Self>,
3156    ) -> Task<Result<()>> {
3157        self.image_store
3158            .update(cx, |image_store, cx| image_store.reload_images(images, cx))
3159    }
3160
3161    pub fn format(
3162        &mut self,
3163        buffers: HashSet<Entity<Buffer>>,
3164        target: LspFormatTarget,
3165        push_to_history: bool,
3166        trigger: lsp_store::FormatTrigger,
3167        cx: &mut Context<Project>,
3168    ) -> Task<anyhow::Result<ProjectTransaction>> {
3169        self.lsp_store.update(cx, |lsp_store, cx| {
3170            lsp_store.format(buffers, target, push_to_history, trigger, cx)
3171        })
3172    }
3173
3174    #[inline(never)]
3175    fn definition_impl(
3176        &mut self,
3177        buffer: &Entity<Buffer>,
3178        position: PointUtf16,
3179        cx: &mut Context<Self>,
3180    ) -> Task<Result<Vec<LocationLink>>> {
3181        self.request_lsp(
3182            buffer.clone(),
3183            LanguageServerToQuery::FirstCapable,
3184            GetDefinition { position },
3185            cx,
3186        )
3187    }
3188    pub fn definition<T: ToPointUtf16>(
3189        &mut self,
3190        buffer: &Entity<Buffer>,
3191        position: T,
3192        cx: &mut Context<Self>,
3193    ) -> Task<Result<Vec<LocationLink>>> {
3194        let position = position.to_point_utf16(buffer.read(cx));
3195        self.definition_impl(buffer, position, cx)
3196    }
3197
3198    fn declaration_impl(
3199        &mut self,
3200        buffer: &Entity<Buffer>,
3201        position: PointUtf16,
3202        cx: &mut Context<Self>,
3203    ) -> Task<Result<Vec<LocationLink>>> {
3204        self.request_lsp(
3205            buffer.clone(),
3206            LanguageServerToQuery::FirstCapable,
3207            GetDeclaration { position },
3208            cx,
3209        )
3210    }
3211
3212    pub fn declaration<T: ToPointUtf16>(
3213        &mut self,
3214        buffer: &Entity<Buffer>,
3215        position: T,
3216        cx: &mut Context<Self>,
3217    ) -> Task<Result<Vec<LocationLink>>> {
3218        let position = position.to_point_utf16(buffer.read(cx));
3219        self.declaration_impl(buffer, position, cx)
3220    }
3221
3222    fn type_definition_impl(
3223        &mut self,
3224        buffer: &Entity<Buffer>,
3225        position: PointUtf16,
3226        cx: &mut Context<Self>,
3227    ) -> Task<Result<Vec<LocationLink>>> {
3228        self.request_lsp(
3229            buffer.clone(),
3230            LanguageServerToQuery::FirstCapable,
3231            GetTypeDefinition { position },
3232            cx,
3233        )
3234    }
3235
3236    pub fn type_definition<T: ToPointUtf16>(
3237        &mut self,
3238        buffer: &Entity<Buffer>,
3239        position: T,
3240        cx: &mut Context<Self>,
3241    ) -> Task<Result<Vec<LocationLink>>> {
3242        let position = position.to_point_utf16(buffer.read(cx));
3243        self.type_definition_impl(buffer, position, cx)
3244    }
3245
3246    pub fn implementation<T: ToPointUtf16>(
3247        &mut self,
3248        buffer: &Entity<Buffer>,
3249        position: T,
3250        cx: &mut Context<Self>,
3251    ) -> Task<Result<Vec<LocationLink>>> {
3252        let position = position.to_point_utf16(buffer.read(cx));
3253        self.request_lsp(
3254            buffer.clone(),
3255            LanguageServerToQuery::FirstCapable,
3256            GetImplementation { position },
3257            cx,
3258        )
3259    }
3260
3261    pub fn references<T: ToPointUtf16>(
3262        &mut self,
3263        buffer: &Entity<Buffer>,
3264        position: T,
3265        cx: &mut Context<Self>,
3266    ) -> Task<Result<Vec<Location>>> {
3267        let position = position.to_point_utf16(buffer.read(cx));
3268        self.request_lsp(
3269            buffer.clone(),
3270            LanguageServerToQuery::FirstCapable,
3271            GetReferences { position },
3272            cx,
3273        )
3274    }
3275
3276    fn document_highlights_impl(
3277        &mut self,
3278        buffer: &Entity<Buffer>,
3279        position: PointUtf16,
3280        cx: &mut Context<Self>,
3281    ) -> Task<Result<Vec<DocumentHighlight>>> {
3282        self.request_lsp(
3283            buffer.clone(),
3284            LanguageServerToQuery::FirstCapable,
3285            GetDocumentHighlights { position },
3286            cx,
3287        )
3288    }
3289
3290    pub fn document_highlights<T: ToPointUtf16>(
3291        &mut self,
3292        buffer: &Entity<Buffer>,
3293        position: T,
3294        cx: &mut Context<Self>,
3295    ) -> Task<Result<Vec<DocumentHighlight>>> {
3296        let position = position.to_point_utf16(buffer.read(cx));
3297        self.document_highlights_impl(buffer, position, cx)
3298    }
3299
3300    pub fn document_symbols(
3301        &mut self,
3302        buffer: &Entity<Buffer>,
3303        cx: &mut Context<Self>,
3304    ) -> Task<Result<Vec<DocumentSymbol>>> {
3305        self.request_lsp(
3306            buffer.clone(),
3307            LanguageServerToQuery::FirstCapable,
3308            GetDocumentSymbols,
3309            cx,
3310        )
3311    }
3312
3313    pub fn symbols(&self, query: &str, cx: &mut Context<Self>) -> Task<Result<Vec<Symbol>>> {
3314        self.lsp_store
3315            .update(cx, |lsp_store, cx| lsp_store.symbols(query, cx))
3316    }
3317
3318    pub fn open_buffer_for_symbol(
3319        &mut self,
3320        symbol: &Symbol,
3321        cx: &mut Context<Self>,
3322    ) -> Task<Result<Entity<Buffer>>> {
3323        self.lsp_store.update(cx, |lsp_store, cx| {
3324            lsp_store.open_buffer_for_symbol(symbol, cx)
3325        })
3326    }
3327
3328    pub fn open_server_settings(&mut self, cx: &mut Context<Self>) -> Task<Result<Entity<Buffer>>> {
3329        let guard = self.retain_remotely_created_models(cx);
3330        let Some(ssh_client) = self.ssh_client.as_ref() else {
3331            return Task::ready(Err(anyhow!("not an ssh project")));
3332        };
3333
3334        let proto_client = ssh_client.read(cx).proto_client();
3335
3336        cx.spawn(async move |project, cx| {
3337            let buffer = proto_client
3338                .request(proto::OpenServerSettings {
3339                    project_id: SSH_PROJECT_ID,
3340                })
3341                .await?;
3342
3343            let buffer = project
3344                .update(cx, |project, cx| {
3345                    project.buffer_store.update(cx, |buffer_store, cx| {
3346                        anyhow::Ok(
3347                            buffer_store
3348                                .wait_for_remote_buffer(BufferId::new(buffer.buffer_id)?, cx),
3349                        )
3350                    })
3351                })??
3352                .await;
3353
3354            drop(guard);
3355            buffer
3356        })
3357    }
3358
3359    pub fn open_local_buffer_via_lsp(
3360        &mut self,
3361        abs_path: lsp::Url,
3362        language_server_id: LanguageServerId,
3363        language_server_name: LanguageServerName,
3364        cx: &mut Context<Self>,
3365    ) -> Task<Result<Entity<Buffer>>> {
3366        self.lsp_store.update(cx, |lsp_store, cx| {
3367            lsp_store.open_local_buffer_via_lsp(
3368                abs_path,
3369                language_server_id,
3370                language_server_name,
3371                cx,
3372            )
3373        })
3374    }
3375
3376    pub fn signature_help<T: ToPointUtf16>(
3377        &self,
3378        buffer: &Entity<Buffer>,
3379        position: T,
3380        cx: &mut Context<Self>,
3381    ) -> Task<Vec<SignatureHelp>> {
3382        self.lsp_store.update(cx, |lsp_store, cx| {
3383            lsp_store.signature_help(buffer, position, cx)
3384        })
3385    }
3386
3387    pub fn hover<T: ToPointUtf16>(
3388        &self,
3389        buffer: &Entity<Buffer>,
3390        position: T,
3391        cx: &mut Context<Self>,
3392    ) -> Task<Vec<Hover>> {
3393        let position = position.to_point_utf16(buffer.read(cx));
3394        self.lsp_store
3395            .update(cx, |lsp_store, cx| lsp_store.hover(buffer, position, cx))
3396    }
3397
3398    pub fn linked_edit(
3399        &self,
3400        buffer: &Entity<Buffer>,
3401        position: Anchor,
3402        cx: &mut Context<Self>,
3403    ) -> Task<Result<Vec<Range<Anchor>>>> {
3404        self.lsp_store.update(cx, |lsp_store, cx| {
3405            lsp_store.linked_edit(buffer, position, cx)
3406        })
3407    }
3408
3409    pub fn completions<T: ToOffset + ToPointUtf16>(
3410        &self,
3411        buffer: &Entity<Buffer>,
3412        position: T,
3413        context: CompletionContext,
3414        cx: &mut Context<Self>,
3415    ) -> Task<Result<Option<Vec<Completion>>>> {
3416        let position = position.to_point_utf16(buffer.read(cx));
3417        self.lsp_store.update(cx, |lsp_store, cx| {
3418            lsp_store.completions(buffer, position, context, cx)
3419        })
3420    }
3421
3422    pub fn code_actions<T: Clone + ToOffset>(
3423        &mut self,
3424        buffer_handle: &Entity<Buffer>,
3425        range: Range<T>,
3426        kinds: Option<Vec<CodeActionKind>>,
3427        cx: &mut Context<Self>,
3428    ) -> Task<Result<Vec<CodeAction>>> {
3429        let buffer = buffer_handle.read(cx);
3430        let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3431        self.lsp_store.update(cx, |lsp_store, cx| {
3432            lsp_store.code_actions(buffer_handle, range, kinds, cx)
3433        })
3434    }
3435
3436    pub fn code_lens<T: Clone + ToOffset>(
3437        &mut self,
3438        buffer_handle: &Entity<Buffer>,
3439        range: Range<T>,
3440        cx: &mut Context<Self>,
3441    ) -> Task<Result<Vec<CodeAction>>> {
3442        let snapshot = buffer_handle.read(cx).snapshot();
3443        let range = snapshot.anchor_before(range.start)..snapshot.anchor_after(range.end);
3444        let code_lens_actions = self
3445            .lsp_store
3446            .update(cx, |lsp_store, cx| lsp_store.code_lens(buffer_handle, cx));
3447
3448        cx.background_spawn(async move {
3449            let mut code_lens_actions = code_lens_actions.await?;
3450            code_lens_actions.retain(|code_lens_action| {
3451                range
3452                    .start
3453                    .cmp(&code_lens_action.range.start, &snapshot)
3454                    .is_ge()
3455                    && range
3456                        .end
3457                        .cmp(&code_lens_action.range.end, &snapshot)
3458                        .is_le()
3459            });
3460            Ok(code_lens_actions)
3461        })
3462    }
3463
3464    pub fn apply_code_action(
3465        &self,
3466        buffer_handle: Entity<Buffer>,
3467        action: CodeAction,
3468        push_to_history: bool,
3469        cx: &mut Context<Self>,
3470    ) -> Task<Result<ProjectTransaction>> {
3471        self.lsp_store.update(cx, |lsp_store, cx| {
3472            lsp_store.apply_code_action(buffer_handle, action, push_to_history, cx)
3473        })
3474    }
3475
3476    pub fn apply_code_action_kind(
3477        &self,
3478        buffers: HashSet<Entity<Buffer>>,
3479        kind: CodeActionKind,
3480        push_to_history: bool,
3481        cx: &mut Context<Self>,
3482    ) -> Task<Result<ProjectTransaction>> {
3483        self.lsp_store.update(cx, |lsp_store, cx| {
3484            lsp_store.apply_code_action_kind(buffers, kind, push_to_history, cx)
3485        })
3486    }
3487
3488    fn prepare_rename_impl(
3489        &mut self,
3490        buffer: Entity<Buffer>,
3491        position: PointUtf16,
3492        cx: &mut Context<Self>,
3493    ) -> Task<Result<PrepareRenameResponse>> {
3494        self.request_lsp(
3495            buffer,
3496            LanguageServerToQuery::FirstCapable,
3497            PrepareRename { position },
3498            cx,
3499        )
3500    }
3501    pub fn prepare_rename<T: ToPointUtf16>(
3502        &mut self,
3503        buffer: Entity<Buffer>,
3504        position: T,
3505        cx: &mut Context<Self>,
3506    ) -> Task<Result<PrepareRenameResponse>> {
3507        let position = position.to_point_utf16(buffer.read(cx));
3508        self.prepare_rename_impl(buffer, position, cx)
3509    }
3510
3511    pub fn perform_rename<T: ToPointUtf16>(
3512        &mut self,
3513        buffer: Entity<Buffer>,
3514        position: T,
3515        new_name: String,
3516        cx: &mut Context<Self>,
3517    ) -> Task<Result<ProjectTransaction>> {
3518        let push_to_history = true;
3519        let position = position.to_point_utf16(buffer.read(cx));
3520        self.request_lsp(
3521            buffer,
3522            LanguageServerToQuery::FirstCapable,
3523            PerformRename {
3524                position,
3525                new_name,
3526                push_to_history,
3527            },
3528            cx,
3529        )
3530    }
3531
3532    pub fn on_type_format<T: ToPointUtf16>(
3533        &mut self,
3534        buffer: Entity<Buffer>,
3535        position: T,
3536        trigger: String,
3537        push_to_history: bool,
3538        cx: &mut Context<Self>,
3539    ) -> Task<Result<Option<Transaction>>> {
3540        self.lsp_store.update(cx, |lsp_store, cx| {
3541            lsp_store.on_type_format(buffer, position, trigger, push_to_history, cx)
3542        })
3543    }
3544
3545    pub fn inlay_hints<T: ToOffset>(
3546        &mut self,
3547        buffer_handle: Entity<Buffer>,
3548        range: Range<T>,
3549        cx: &mut Context<Self>,
3550    ) -> Task<anyhow::Result<Vec<InlayHint>>> {
3551        let buffer = buffer_handle.read(cx);
3552        let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3553        self.lsp_store.update(cx, |lsp_store, cx| {
3554            lsp_store.inlay_hints(buffer_handle, range, cx)
3555        })
3556    }
3557
3558    pub fn resolve_inlay_hint(
3559        &self,
3560        hint: InlayHint,
3561        buffer_handle: Entity<Buffer>,
3562        server_id: LanguageServerId,
3563        cx: &mut Context<Self>,
3564    ) -> Task<anyhow::Result<InlayHint>> {
3565        self.lsp_store.update(cx, |lsp_store, cx| {
3566            lsp_store.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
3567        })
3568    }
3569
3570    pub fn search(&mut self, query: SearchQuery, cx: &mut Context<Self>) -> Receiver<SearchResult> {
3571        let (result_tx, result_rx) = smol::channel::unbounded();
3572
3573        let matching_buffers_rx = if query.is_opened_only() {
3574            self.sort_search_candidates(&query, cx)
3575        } else {
3576            self.find_search_candidate_buffers(&query, MAX_SEARCH_RESULT_FILES + 1, cx)
3577        };
3578
3579        cx.spawn(async move |_, cx| {
3580            let mut range_count = 0;
3581            let mut buffer_count = 0;
3582            let mut limit_reached = false;
3583            let query = Arc::new(query);
3584            let mut chunks = matching_buffers_rx.ready_chunks(64);
3585
3586            // Now that we know what paths match the query, we will load at most
3587            // 64 buffers at a time to avoid overwhelming the main thread. For each
3588            // opened buffer, we will spawn a background task that retrieves all the
3589            // ranges in the buffer matched by the query.
3590            let mut chunks = pin!(chunks);
3591            'outer: while let Some(matching_buffer_chunk) = chunks.next().await {
3592                let mut chunk_results = Vec::new();
3593                for buffer in matching_buffer_chunk {
3594                    let buffer = buffer.clone();
3595                    let query = query.clone();
3596                    let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot())?;
3597                    chunk_results.push(cx.background_spawn(async move {
3598                        let ranges = query
3599                            .search(&snapshot, None)
3600                            .await
3601                            .iter()
3602                            .map(|range| {
3603                                snapshot.anchor_before(range.start)
3604                                    ..snapshot.anchor_after(range.end)
3605                            })
3606                            .collect::<Vec<_>>();
3607                        anyhow::Ok((buffer, ranges))
3608                    }));
3609                }
3610
3611                let chunk_results = futures::future::join_all(chunk_results).await;
3612                for result in chunk_results {
3613                    if let Some((buffer, ranges)) = result.log_err() {
3614                        range_count += ranges.len();
3615                        buffer_count += 1;
3616                        result_tx
3617                            .send(SearchResult::Buffer { buffer, ranges })
3618                            .await?;
3619                        if buffer_count > MAX_SEARCH_RESULT_FILES
3620                            || range_count > MAX_SEARCH_RESULT_RANGES
3621                        {
3622                            limit_reached = true;
3623                            break 'outer;
3624                        }
3625                    }
3626                }
3627            }
3628
3629            if limit_reached {
3630                result_tx.send(SearchResult::LimitReached).await?;
3631            }
3632
3633            anyhow::Ok(())
3634        })
3635        .detach();
3636
3637        result_rx
3638    }
3639
3640    fn find_search_candidate_buffers(
3641        &mut self,
3642        query: &SearchQuery,
3643        limit: usize,
3644        cx: &mut Context<Project>,
3645    ) -> Receiver<Entity<Buffer>> {
3646        if self.is_local() {
3647            let fs = self.fs.clone();
3648            self.buffer_store.update(cx, |buffer_store, cx| {
3649                buffer_store.find_search_candidates(query, limit, fs, cx)
3650            })
3651        } else {
3652            self.find_search_candidates_remote(query, limit, cx)
3653        }
3654    }
3655
3656    fn sort_search_candidates(
3657        &mut self,
3658        search_query: &SearchQuery,
3659        cx: &mut Context<Project>,
3660    ) -> Receiver<Entity<Buffer>> {
3661        let worktree_store = self.worktree_store.read(cx);
3662        let mut buffers = search_query
3663            .buffers()
3664            .into_iter()
3665            .flatten()
3666            .filter(|buffer| {
3667                let b = buffer.read(cx);
3668                if let Some(file) = b.file() {
3669                    if !search_query.file_matches(file.path()) {
3670                        return false;
3671                    }
3672                    if let Some(entry) = b
3673                        .entry_id(cx)
3674                        .and_then(|entry_id| worktree_store.entry_for_id(entry_id, cx))
3675                    {
3676                        if entry.is_ignored && !search_query.include_ignored() {
3677                            return false;
3678                        }
3679                    }
3680                }
3681                true
3682            })
3683            .collect::<Vec<_>>();
3684        let (tx, rx) = smol::channel::unbounded();
3685        buffers.sort_by(|a, b| match (a.read(cx).file(), b.read(cx).file()) {
3686            (None, None) => a.read(cx).remote_id().cmp(&b.read(cx).remote_id()),
3687            (None, Some(_)) => std::cmp::Ordering::Less,
3688            (Some(_), None) => std::cmp::Ordering::Greater,
3689            (Some(a), Some(b)) => compare_paths((a.path(), true), (b.path(), true)),
3690        });
3691        for buffer in buffers {
3692            tx.send_blocking(buffer.clone()).unwrap()
3693        }
3694
3695        rx
3696    }
3697
3698    fn find_search_candidates_remote(
3699        &mut self,
3700        query: &SearchQuery,
3701        limit: usize,
3702        cx: &mut Context<Project>,
3703    ) -> Receiver<Entity<Buffer>> {
3704        let (tx, rx) = smol::channel::unbounded();
3705
3706        let (client, remote_id): (AnyProtoClient, _) = if let Some(ssh_client) = &self.ssh_client {
3707            (ssh_client.read(cx).proto_client(), 0)
3708        } else if let Some(remote_id) = self.remote_id() {
3709            (self.client.clone().into(), remote_id)
3710        } else {
3711            return rx;
3712        };
3713
3714        let request = client.request(proto::FindSearchCandidates {
3715            project_id: remote_id,
3716            query: Some(query.to_proto()),
3717            limit: limit as _,
3718        });
3719        let guard = self.retain_remotely_created_models(cx);
3720
3721        cx.spawn(async move |project, cx| {
3722            let response = request.await?;
3723            for buffer_id in response.buffer_ids {
3724                let buffer_id = BufferId::new(buffer_id)?;
3725                let buffer = project
3726                    .update(cx, |project, cx| {
3727                        project.buffer_store.update(cx, |buffer_store, cx| {
3728                            buffer_store.wait_for_remote_buffer(buffer_id, cx)
3729                        })
3730                    })?
3731                    .await?;
3732                let _ = tx.send(buffer).await;
3733            }
3734
3735            drop(guard);
3736            anyhow::Ok(())
3737        })
3738        .detach_and_log_err(cx);
3739        rx
3740    }
3741
3742    pub fn request_lsp<R: LspCommand>(
3743        &mut self,
3744        buffer_handle: Entity<Buffer>,
3745        server: LanguageServerToQuery,
3746        request: R,
3747        cx: &mut Context<Self>,
3748    ) -> Task<Result<R::Response>>
3749    where
3750        <R::LspRequest as lsp::request::Request>::Result: Send,
3751        <R::LspRequest as lsp::request::Request>::Params: Send,
3752    {
3753        let guard = self.retain_remotely_created_models(cx);
3754        let task = self.lsp_store.update(cx, |lsp_store, cx| {
3755            lsp_store.request_lsp(buffer_handle, server, request, cx)
3756        });
3757        cx.spawn(async move |_, _| {
3758            let result = task.await;
3759            drop(guard);
3760            result
3761        })
3762    }
3763
3764    /// Move a worktree to a new position in the worktree order.
3765    ///
3766    /// The worktree will moved to the opposite side of the destination worktree.
3767    ///
3768    /// # Example
3769    ///
3770    /// Given the worktree order `[11, 22, 33]` and a call to move worktree `22` to `33`,
3771    /// worktree_order will be updated to produce the indexes `[11, 33, 22]`.
3772    ///
3773    /// Given the worktree order `[11, 22, 33]` and a call to move worktree `22` to `11`,
3774    /// worktree_order will be updated to produce the indexes `[22, 11, 33]`.
3775    ///
3776    /// # Errors
3777    ///
3778    /// An error will be returned if the worktree or destination worktree are not found.
3779    pub fn move_worktree(
3780        &mut self,
3781        source: WorktreeId,
3782        destination: WorktreeId,
3783        cx: &mut Context<Self>,
3784    ) -> Result<()> {
3785        self.worktree_store.update(cx, |worktree_store, cx| {
3786            worktree_store.move_worktree(source, destination, cx)
3787        })
3788    }
3789
3790    pub fn find_or_create_worktree(
3791        &mut self,
3792        abs_path: impl AsRef<Path>,
3793        visible: bool,
3794        cx: &mut Context<Self>,
3795    ) -> Task<Result<(Entity<Worktree>, PathBuf)>> {
3796        self.worktree_store.update(cx, |worktree_store, cx| {
3797            worktree_store.find_or_create_worktree(abs_path, visible, cx)
3798        })
3799    }
3800
3801    pub fn find_worktree(&self, abs_path: &Path, cx: &App) -> Option<(Entity<Worktree>, PathBuf)> {
3802        self.worktree_store.read_with(cx, |worktree_store, cx| {
3803            worktree_store.find_worktree(abs_path, cx)
3804        })
3805    }
3806
3807    pub fn is_shared(&self) -> bool {
3808        match &self.client_state {
3809            ProjectClientState::Shared { .. } => true,
3810            ProjectClientState::Local => false,
3811            ProjectClientState::Remote { .. } => true,
3812        }
3813    }
3814
3815    /// Returns the resolved version of `path`, that was found in `buffer`, if it exists.
3816    pub fn resolve_path_in_buffer(
3817        &self,
3818        path: &str,
3819        buffer: &Entity<Buffer>,
3820        cx: &mut Context<Self>,
3821    ) -> Task<Option<ResolvedPath>> {
3822        let path_buf = PathBuf::from(path);
3823        if path_buf.is_absolute() || path.starts_with("~") {
3824            self.resolve_abs_path(path, cx)
3825        } else {
3826            self.resolve_path_in_worktrees(path_buf, buffer, cx)
3827        }
3828    }
3829
3830    pub fn resolve_abs_file_path(
3831        &self,
3832        path: &str,
3833        cx: &mut Context<Self>,
3834    ) -> Task<Option<ResolvedPath>> {
3835        let resolve_task = self.resolve_abs_path(path, cx);
3836        cx.background_spawn(async move {
3837            let resolved_path = resolve_task.await;
3838            resolved_path.filter(|path| path.is_file())
3839        })
3840    }
3841
3842    pub fn resolve_abs_path(
3843        &self,
3844        path: &str,
3845        cx: &mut Context<Self>,
3846    ) -> Task<Option<ResolvedPath>> {
3847        if self.is_local() {
3848            let expanded = PathBuf::from(shellexpand::tilde(&path).into_owned());
3849            let fs = self.fs.clone();
3850            cx.background_spawn(async move {
3851                let path = expanded.as_path();
3852                let metadata = fs.metadata(path).await.ok().flatten();
3853
3854                metadata.map(|metadata| ResolvedPath::AbsPath {
3855                    path: expanded,
3856                    is_dir: metadata.is_dir,
3857                })
3858            })
3859        } else if let Some(ssh_client) = self.ssh_client.as_ref() {
3860            let request_path = Path::new(path);
3861            let request = ssh_client
3862                .read(cx)
3863                .proto_client()
3864                .request(proto::GetPathMetadata {
3865                    project_id: SSH_PROJECT_ID,
3866                    path: request_path.to_proto(),
3867                });
3868            cx.background_spawn(async move {
3869                let response = request.await.log_err()?;
3870                if response.exists {
3871                    Some(ResolvedPath::AbsPath {
3872                        path: PathBuf::from_proto(response.path),
3873                        is_dir: response.is_dir,
3874                    })
3875                } else {
3876                    None
3877                }
3878            })
3879        } else {
3880            return Task::ready(None);
3881        }
3882    }
3883
3884    fn resolve_path_in_worktrees(
3885        &self,
3886        path: PathBuf,
3887        buffer: &Entity<Buffer>,
3888        cx: &mut Context<Self>,
3889    ) -> Task<Option<ResolvedPath>> {
3890        let mut candidates = vec![path.clone()];
3891
3892        if let Some(file) = buffer.read(cx).file() {
3893            if let Some(dir) = file.path().parent() {
3894                let joined = dir.to_path_buf().join(path);
3895                candidates.push(joined);
3896            }
3897        }
3898
3899        let buffer_worktree_id = buffer.read(cx).file().map(|file| file.worktree_id(cx));
3900        let worktrees_with_ids: Vec<_> = self
3901            .worktrees(cx)
3902            .map(|worktree| {
3903                let id = worktree.read(cx).id();
3904                (worktree, id)
3905            })
3906            .collect();
3907
3908        cx.spawn(async move |_, mut cx| {
3909            if let Some(buffer_worktree_id) = buffer_worktree_id {
3910                if let Some((worktree, _)) = worktrees_with_ids
3911                    .iter()
3912                    .find(|(_, id)| *id == buffer_worktree_id)
3913                {
3914                    for candidate in candidates.iter() {
3915                        if let Some(path) =
3916                            Self::resolve_path_in_worktree(&worktree, candidate, &mut cx)
3917                        {
3918                            return Some(path);
3919                        }
3920                    }
3921                }
3922            }
3923            for (worktree, id) in worktrees_with_ids {
3924                if Some(id) == buffer_worktree_id {
3925                    continue;
3926                }
3927                for candidate in candidates.iter() {
3928                    if let Some(path) =
3929                        Self::resolve_path_in_worktree(&worktree, candidate, &mut cx)
3930                    {
3931                        return Some(path);
3932                    }
3933                }
3934            }
3935            None
3936        })
3937    }
3938
3939    fn resolve_path_in_worktree(
3940        worktree: &Entity<Worktree>,
3941        path: &PathBuf,
3942        cx: &mut AsyncApp,
3943    ) -> Option<ResolvedPath> {
3944        worktree
3945            .update(cx, |worktree, _| {
3946                let root_entry_path = &worktree.root_entry()?.path;
3947                let resolved = resolve_path(root_entry_path, path);
3948                let stripped = resolved.strip_prefix(root_entry_path).unwrap_or(&resolved);
3949                worktree.entry_for_path(stripped).map(|entry| {
3950                    let project_path = ProjectPath {
3951                        worktree_id: worktree.id(),
3952                        path: entry.path.clone(),
3953                    };
3954                    ResolvedPath::ProjectPath {
3955                        project_path,
3956                        is_dir: entry.is_dir(),
3957                    }
3958                })
3959            })
3960            .ok()?
3961    }
3962
3963    pub fn list_directory(
3964        &self,
3965        query: String,
3966        cx: &mut Context<Self>,
3967    ) -> Task<Result<Vec<DirectoryItem>>> {
3968        if self.is_local() {
3969            DirectoryLister::Local(self.fs.clone()).list_directory(query, cx)
3970        } else if let Some(session) = self.ssh_client.as_ref() {
3971            let path_buf = PathBuf::from(query);
3972            let request = proto::ListRemoteDirectory {
3973                dev_server_id: SSH_PROJECT_ID,
3974                path: path_buf.to_proto(),
3975                config: Some(proto::ListRemoteDirectoryConfig { is_dir: true }),
3976            };
3977
3978            let response = session.read(cx).proto_client().request(request);
3979            cx.background_spawn(async move {
3980                let proto::ListRemoteDirectoryResponse {
3981                    entries,
3982                    entry_info,
3983                } = response.await?;
3984                Ok(entries
3985                    .into_iter()
3986                    .zip(entry_info)
3987                    .map(|(entry, info)| DirectoryItem {
3988                        path: PathBuf::from(entry),
3989                        is_dir: info.is_dir,
3990                    })
3991                    .collect())
3992            })
3993        } else {
3994            Task::ready(Err(anyhow!("cannot list directory in remote project")))
3995        }
3996    }
3997
3998    pub fn create_worktree(
3999        &mut self,
4000        abs_path: impl AsRef<Path>,
4001        visible: bool,
4002        cx: &mut Context<Self>,
4003    ) -> Task<Result<Entity<Worktree>>> {
4004        self.worktree_store.update(cx, |worktree_store, cx| {
4005            worktree_store.create_worktree(abs_path, visible, cx)
4006        })
4007    }
4008
4009    pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut Context<Self>) {
4010        self.worktree_store.update(cx, |worktree_store, cx| {
4011            worktree_store.remove_worktree(id_to_remove, cx);
4012        });
4013    }
4014
4015    fn add_worktree(&mut self, worktree: &Entity<Worktree>, cx: &mut Context<Self>) {
4016        self.worktree_store.update(cx, |worktree_store, cx| {
4017            worktree_store.add(worktree, cx);
4018        });
4019    }
4020
4021    pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut Context<Self>) {
4022        let new_active_entry = entry.and_then(|project_path| {
4023            let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4024            let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4025            Some(entry.id)
4026        });
4027        if new_active_entry != self.active_entry {
4028            self.active_entry = new_active_entry;
4029            self.lsp_store.update(cx, |lsp_store, _| {
4030                lsp_store.set_active_entry(new_active_entry);
4031            });
4032            cx.emit(Event::ActiveEntryChanged(new_active_entry));
4033        }
4034    }
4035
4036    pub fn language_servers_running_disk_based_diagnostics<'a>(
4037        &'a self,
4038        cx: &'a App,
4039    ) -> impl Iterator<Item = LanguageServerId> + 'a {
4040        self.lsp_store
4041            .read(cx)
4042            .language_servers_running_disk_based_diagnostics()
4043    }
4044
4045    pub fn diagnostic_summary(&self, include_ignored: bool, cx: &App) -> DiagnosticSummary {
4046        self.lsp_store
4047            .read(cx)
4048            .diagnostic_summary(include_ignored, cx)
4049    }
4050
4051    pub fn diagnostic_summaries<'a>(
4052        &'a self,
4053        include_ignored: bool,
4054        cx: &'a App,
4055    ) -> impl Iterator<Item = (ProjectPath, LanguageServerId, DiagnosticSummary)> + 'a {
4056        self.lsp_store
4057            .read(cx)
4058            .diagnostic_summaries(include_ignored, cx)
4059    }
4060
4061    pub fn active_entry(&self) -> Option<ProjectEntryId> {
4062        self.active_entry
4063    }
4064
4065    pub fn entry_for_path(&self, path: &ProjectPath, cx: &App) -> Option<Entry> {
4066        self.worktree_store.read(cx).entry_for_path(path, cx)
4067    }
4068
4069    pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &App) -> Option<ProjectPath> {
4070        let worktree = self.worktree_for_entry(entry_id, cx)?;
4071        let worktree = worktree.read(cx);
4072        let worktree_id = worktree.id();
4073        let path = worktree.entry_for_id(entry_id)?.path.clone();
4074        Some(ProjectPath { worktree_id, path })
4075    }
4076
4077    pub fn absolute_path(&self, project_path: &ProjectPath, cx: &App) -> Option<PathBuf> {
4078        self.worktree_for_id(project_path.worktree_id, cx)?
4079            .read(cx)
4080            .absolutize(&project_path.path)
4081            .ok()
4082    }
4083
4084    /// Attempts to find a `ProjectPath` corresponding to the given path. If the path
4085    /// is a *full path*, meaning it starts with the root name of a worktree, we'll locate
4086    /// it in that worktree. Otherwise, we'll attempt to find it as a relative path in
4087    /// the first visible worktree that has an entry for that relative path.
4088    ///
4089    /// We use this to resolve edit steps, when there's a chance an LLM may omit the workree
4090    /// root name from paths.
4091    ///
4092    /// # Arguments
4093    ///
4094    /// * `path` - A full path that starts with a worktree root name, or alternatively a
4095    ///            relative path within a visible worktree.
4096    /// * `cx` - A reference to the `AppContext`.
4097    ///
4098    /// # Returns
4099    ///
4100    /// Returns `Some(ProjectPath)` if a matching worktree is found, otherwise `None`.
4101    pub fn find_project_path(&self, path: impl AsRef<Path>, cx: &App) -> Option<ProjectPath> {
4102        let path = path.as_ref();
4103        let worktree_store = self.worktree_store.read(cx);
4104
4105        for worktree in worktree_store.visible_worktrees(cx) {
4106            let worktree_root_name = worktree.read(cx).root_name();
4107            if let Ok(relative_path) = path.strip_prefix(worktree_root_name) {
4108                return Some(ProjectPath {
4109                    worktree_id: worktree.read(cx).id(),
4110                    path: relative_path.into(),
4111                });
4112            }
4113        }
4114
4115        for worktree in worktree_store.visible_worktrees(cx) {
4116            let worktree = worktree.read(cx);
4117            if let Some(entry) = worktree.entry_for_path(path) {
4118                return Some(ProjectPath {
4119                    worktree_id: worktree.id(),
4120                    path: entry.path.clone(),
4121                });
4122            }
4123        }
4124
4125        None
4126    }
4127
4128    pub fn project_path_for_absolute_path(&self, abs_path: &Path, cx: &App) -> Option<ProjectPath> {
4129        self.find_worktree(abs_path, cx)
4130            .map(|(worktree, relative_path)| ProjectPath {
4131                worktree_id: worktree.read(cx).id(),
4132                path: relative_path.into(),
4133            })
4134    }
4135
4136    pub fn get_workspace_root(&self, project_path: &ProjectPath, cx: &App) -> Option<PathBuf> {
4137        Some(
4138            self.worktree_for_id(project_path.worktree_id, cx)?
4139                .read(cx)
4140                .abs_path()
4141                .to_path_buf(),
4142        )
4143    }
4144
4145    pub fn blame_buffer(
4146        &self,
4147        buffer: &Entity<Buffer>,
4148        version: Option<clock::Global>,
4149        cx: &App,
4150    ) -> Task<Result<Option<Blame>>> {
4151        self.git_store.read(cx).blame_buffer(buffer, version, cx)
4152    }
4153
4154    pub fn get_permalink_to_line(
4155        &self,
4156        buffer: &Entity<Buffer>,
4157        selection: Range<u32>,
4158        cx: &App,
4159    ) -> Task<Result<url::Url>> {
4160        self.git_store
4161            .read(cx)
4162            .get_permalink_to_line(buffer, selection, cx)
4163    }
4164
4165    // RPC message handlers
4166
4167    async fn handle_unshare_project(
4168        this: Entity<Self>,
4169        _: TypedEnvelope<proto::UnshareProject>,
4170        mut cx: AsyncApp,
4171    ) -> Result<()> {
4172        this.update(&mut cx, |this, cx| {
4173            if this.is_local() || this.is_via_ssh() {
4174                this.unshare(cx)?;
4175            } else {
4176                this.disconnected_from_host(cx);
4177            }
4178            Ok(())
4179        })?
4180    }
4181
4182    async fn handle_add_collaborator(
4183        this: Entity<Self>,
4184        mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4185        mut cx: AsyncApp,
4186    ) -> Result<()> {
4187        let collaborator = envelope
4188            .payload
4189            .collaborator
4190            .take()
4191            .ok_or_else(|| anyhow!("empty collaborator"))?;
4192
4193        let collaborator = Collaborator::from_proto(collaborator)?;
4194        this.update(&mut cx, |this, cx| {
4195            this.buffer_store.update(cx, |buffer_store, _| {
4196                buffer_store.forget_shared_buffers_for(&collaborator.peer_id);
4197            });
4198            this.breakpoint_store.read(cx).broadcast();
4199            cx.emit(Event::CollaboratorJoined(collaborator.peer_id));
4200            this.collaborators
4201                .insert(collaborator.peer_id, collaborator);
4202        })?;
4203
4204        Ok(())
4205    }
4206
4207    async fn handle_update_project_collaborator(
4208        this: Entity<Self>,
4209        envelope: TypedEnvelope<proto::UpdateProjectCollaborator>,
4210        mut cx: AsyncApp,
4211    ) -> Result<()> {
4212        let old_peer_id = envelope
4213            .payload
4214            .old_peer_id
4215            .ok_or_else(|| anyhow!("missing old peer id"))?;
4216        let new_peer_id = envelope
4217            .payload
4218            .new_peer_id
4219            .ok_or_else(|| anyhow!("missing new peer id"))?;
4220        this.update(&mut cx, |this, cx| {
4221            let collaborator = this
4222                .collaborators
4223                .remove(&old_peer_id)
4224                .ok_or_else(|| anyhow!("received UpdateProjectCollaborator for unknown peer"))?;
4225            let is_host = collaborator.is_host;
4226            this.collaborators.insert(new_peer_id, collaborator);
4227
4228            log::info!("peer {} became {}", old_peer_id, new_peer_id,);
4229            this.buffer_store.update(cx, |buffer_store, _| {
4230                buffer_store.update_peer_id(&old_peer_id, new_peer_id)
4231            });
4232
4233            if is_host {
4234                this.buffer_store
4235                    .update(cx, |buffer_store, _| buffer_store.discard_incomplete());
4236                this.enqueue_buffer_ordered_message(BufferOrderedMessage::Resync)
4237                    .unwrap();
4238                cx.emit(Event::HostReshared);
4239            }
4240
4241            cx.emit(Event::CollaboratorUpdated {
4242                old_peer_id,
4243                new_peer_id,
4244            });
4245            Ok(())
4246        })?
4247    }
4248
4249    async fn handle_remove_collaborator(
4250        this: Entity<Self>,
4251        envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4252        mut cx: AsyncApp,
4253    ) -> Result<()> {
4254        this.update(&mut cx, |this, cx| {
4255            let peer_id = envelope
4256                .payload
4257                .peer_id
4258                .ok_or_else(|| anyhow!("invalid peer id"))?;
4259            let replica_id = this
4260                .collaborators
4261                .remove(&peer_id)
4262                .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4263                .replica_id;
4264            this.buffer_store.update(cx, |buffer_store, cx| {
4265                buffer_store.forget_shared_buffers_for(&peer_id);
4266                for buffer in buffer_store.buffers() {
4267                    buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4268                }
4269            });
4270            this.git_store.update(cx, |git_store, _| {
4271                git_store.forget_shared_diffs_for(&peer_id);
4272            });
4273
4274            cx.emit(Event::CollaboratorLeft(peer_id));
4275            Ok(())
4276        })?
4277    }
4278
4279    async fn handle_update_project(
4280        this: Entity<Self>,
4281        envelope: TypedEnvelope<proto::UpdateProject>,
4282        mut cx: AsyncApp,
4283    ) -> Result<()> {
4284        this.update(&mut cx, |this, cx| {
4285            // Don't handle messages that were sent before the response to us joining the project
4286            if envelope.message_id > this.join_project_response_message_id {
4287                this.set_worktrees_from_proto(envelope.payload.worktrees, cx)?;
4288            }
4289            Ok(())
4290        })?
4291    }
4292
4293    async fn handle_toast(
4294        this: Entity<Self>,
4295        envelope: TypedEnvelope<proto::Toast>,
4296        mut cx: AsyncApp,
4297    ) -> Result<()> {
4298        this.update(&mut cx, |_, cx| {
4299            cx.emit(Event::Toast {
4300                notification_id: envelope.payload.notification_id.into(),
4301                message: envelope.payload.message,
4302            });
4303            Ok(())
4304        })?
4305    }
4306
4307    async fn handle_language_server_prompt_request(
4308        this: Entity<Self>,
4309        envelope: TypedEnvelope<proto::LanguageServerPromptRequest>,
4310        mut cx: AsyncApp,
4311    ) -> Result<proto::LanguageServerPromptResponse> {
4312        let (tx, mut rx) = smol::channel::bounded(1);
4313        let actions: Vec<_> = envelope
4314            .payload
4315            .actions
4316            .into_iter()
4317            .map(|action| MessageActionItem {
4318                title: action,
4319                properties: Default::default(),
4320            })
4321            .collect();
4322        this.update(&mut cx, |_, cx| {
4323            cx.emit(Event::LanguageServerPrompt(LanguageServerPromptRequest {
4324                level: proto_to_prompt(envelope.payload.level.context("Invalid prompt level")?),
4325                message: envelope.payload.message,
4326                actions: actions.clone(),
4327                lsp_name: envelope.payload.lsp_name,
4328                response_channel: tx,
4329            }));
4330
4331            anyhow::Ok(())
4332        })??;
4333
4334        // We drop `this` to avoid holding a reference in this future for too
4335        // long.
4336        // If we keep the reference, we might not drop the `Project` early
4337        // enough when closing a window and it will only get releases on the
4338        // next `flush_effects()` call.
4339        drop(this);
4340
4341        let mut rx = pin!(rx);
4342        let answer = rx.next().await;
4343
4344        Ok(LanguageServerPromptResponse {
4345            action_response: answer.and_then(|answer| {
4346                actions
4347                    .iter()
4348                    .position(|action| *action == answer)
4349                    .map(|index| index as u64)
4350            }),
4351        })
4352    }
4353
4354    async fn handle_hide_toast(
4355        this: Entity<Self>,
4356        envelope: TypedEnvelope<proto::HideToast>,
4357        mut cx: AsyncApp,
4358    ) -> Result<()> {
4359        this.update(&mut cx, |_, cx| {
4360            cx.emit(Event::HideToast {
4361                notification_id: envelope.payload.notification_id.into(),
4362            });
4363            Ok(())
4364        })?
4365    }
4366
4367    // Collab sends UpdateWorktree protos as messages
4368    async fn handle_update_worktree(
4369        this: Entity<Self>,
4370        envelope: TypedEnvelope<proto::UpdateWorktree>,
4371        mut cx: AsyncApp,
4372    ) -> Result<()> {
4373        this.update(&mut cx, |this, cx| {
4374            let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4375            if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4376                worktree.update(cx, |worktree, _| {
4377                    let worktree = worktree.as_remote_mut().unwrap();
4378                    worktree.update_from_remote(envelope.payload);
4379                });
4380            }
4381            Ok(())
4382        })?
4383    }
4384
4385    async fn handle_update_buffer_from_ssh(
4386        this: Entity<Self>,
4387        envelope: TypedEnvelope<proto::UpdateBuffer>,
4388        cx: AsyncApp,
4389    ) -> Result<proto::Ack> {
4390        let buffer_store = this.read_with(&cx, |this, cx| {
4391            if let Some(remote_id) = this.remote_id() {
4392                let mut payload = envelope.payload.clone();
4393                payload.project_id = remote_id;
4394                cx.background_spawn(this.client.request(payload))
4395                    .detach_and_log_err(cx);
4396            }
4397            this.buffer_store.clone()
4398        })?;
4399        BufferStore::handle_update_buffer(buffer_store, envelope, cx).await
4400    }
4401
4402    async fn handle_update_buffer(
4403        this: Entity<Self>,
4404        envelope: TypedEnvelope<proto::UpdateBuffer>,
4405        cx: AsyncApp,
4406    ) -> Result<proto::Ack> {
4407        let buffer_store = this.read_with(&cx, |this, cx| {
4408            if let Some(ssh) = &this.ssh_client {
4409                let mut payload = envelope.payload.clone();
4410                payload.project_id = SSH_PROJECT_ID;
4411                cx.background_spawn(ssh.read(cx).proto_client().request(payload))
4412                    .detach_and_log_err(cx);
4413            }
4414            this.buffer_store.clone()
4415        })?;
4416        BufferStore::handle_update_buffer(buffer_store, envelope, cx).await
4417    }
4418
4419    fn retain_remotely_created_models(
4420        &mut self,
4421        cx: &mut Context<Self>,
4422    ) -> RemotelyCreatedModelGuard {
4423        {
4424            let mut remotely_create_models = self.remotely_created_models.lock();
4425            if remotely_create_models.retain_count == 0 {
4426                remotely_create_models.buffers = self.buffer_store.read(cx).buffers().collect();
4427                remotely_create_models.worktrees =
4428                    self.worktree_store.read(cx).worktrees().collect();
4429            }
4430            remotely_create_models.retain_count += 1;
4431        }
4432        RemotelyCreatedModelGuard {
4433            remote_models: Arc::downgrade(&self.remotely_created_models),
4434        }
4435    }
4436
4437    async fn handle_create_buffer_for_peer(
4438        this: Entity<Self>,
4439        envelope: TypedEnvelope<proto::CreateBufferForPeer>,
4440        mut cx: AsyncApp,
4441    ) -> Result<()> {
4442        this.update(&mut cx, |this, cx| {
4443            this.buffer_store.update(cx, |buffer_store, cx| {
4444                buffer_store.handle_create_buffer_for_peer(
4445                    envelope,
4446                    this.replica_id(),
4447                    this.capability(),
4448                    cx,
4449                )
4450            })
4451        })?
4452    }
4453
4454    async fn handle_synchronize_buffers(
4455        this: Entity<Self>,
4456        envelope: TypedEnvelope<proto::SynchronizeBuffers>,
4457        mut cx: AsyncApp,
4458    ) -> Result<proto::SynchronizeBuffersResponse> {
4459        let response = this.update(&mut cx, |this, cx| {
4460            let client = this.client.clone();
4461            this.buffer_store.update(cx, |this, cx| {
4462                this.handle_synchronize_buffers(envelope, cx, client)
4463            })
4464        })??;
4465
4466        Ok(response)
4467    }
4468
4469    async fn handle_search_candidate_buffers(
4470        this: Entity<Self>,
4471        envelope: TypedEnvelope<proto::FindSearchCandidates>,
4472        mut cx: AsyncApp,
4473    ) -> Result<proto::FindSearchCandidatesResponse> {
4474        let peer_id = envelope.original_sender_id()?;
4475        let message = envelope.payload;
4476        let query = SearchQuery::from_proto(
4477            message
4478                .query
4479                .ok_or_else(|| anyhow!("missing query field"))?,
4480        )?;
4481        let results = this.update(&mut cx, |this, cx| {
4482            this.find_search_candidate_buffers(&query, message.limit as _, cx)
4483        })?;
4484
4485        let mut response = proto::FindSearchCandidatesResponse {
4486            buffer_ids: Vec::new(),
4487        };
4488
4489        while let Ok(buffer) = results.recv().await {
4490            this.update(&mut cx, |this, cx| {
4491                let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
4492                response.buffer_ids.push(buffer_id.to_proto());
4493            })?;
4494        }
4495
4496        Ok(response)
4497    }
4498
4499    async fn handle_open_buffer_by_id(
4500        this: Entity<Self>,
4501        envelope: TypedEnvelope<proto::OpenBufferById>,
4502        mut cx: AsyncApp,
4503    ) -> Result<proto::OpenBufferResponse> {
4504        let peer_id = envelope.original_sender_id()?;
4505        let buffer_id = BufferId::new(envelope.payload.id)?;
4506        let buffer = this
4507            .update(&mut cx, |this, cx| this.open_buffer_by_id(buffer_id, cx))?
4508            .await?;
4509        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
4510    }
4511
4512    async fn handle_open_buffer_by_path(
4513        this: Entity<Self>,
4514        envelope: TypedEnvelope<proto::OpenBufferByPath>,
4515        mut cx: AsyncApp,
4516    ) -> Result<proto::OpenBufferResponse> {
4517        let peer_id = envelope.original_sender_id()?;
4518        let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4519        let open_buffer = this.update(&mut cx, |this, cx| {
4520            this.open_buffer(
4521                ProjectPath {
4522                    worktree_id,
4523                    path: Arc::<Path>::from_proto(envelope.payload.path),
4524                },
4525                cx,
4526            )
4527        })?;
4528
4529        let buffer = open_buffer.await?;
4530        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
4531    }
4532
4533    async fn handle_open_new_buffer(
4534        this: Entity<Self>,
4535        envelope: TypedEnvelope<proto::OpenNewBuffer>,
4536        mut cx: AsyncApp,
4537    ) -> Result<proto::OpenBufferResponse> {
4538        let buffer = this
4539            .update(&mut cx, |this, cx| this.create_buffer(cx))?
4540            .await?;
4541        let peer_id = envelope.original_sender_id()?;
4542
4543        Project::respond_to_open_buffer_request(this, buffer, peer_id, &mut cx)
4544    }
4545
4546    fn respond_to_open_buffer_request(
4547        this: Entity<Self>,
4548        buffer: Entity<Buffer>,
4549        peer_id: proto::PeerId,
4550        cx: &mut AsyncApp,
4551    ) -> Result<proto::OpenBufferResponse> {
4552        this.update(cx, |this, cx| {
4553            let is_private = buffer
4554                .read(cx)
4555                .file()
4556                .map(|f| f.is_private())
4557                .unwrap_or_default();
4558            if is_private {
4559                Err(anyhow!(ErrorCode::UnsharedItem))
4560            } else {
4561                Ok(proto::OpenBufferResponse {
4562                    buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx).into(),
4563                })
4564            }
4565        })?
4566    }
4567
4568    fn create_buffer_for_peer(
4569        &mut self,
4570        buffer: &Entity<Buffer>,
4571        peer_id: proto::PeerId,
4572        cx: &mut App,
4573    ) -> BufferId {
4574        self.buffer_store
4575            .update(cx, |buffer_store, cx| {
4576                buffer_store.create_buffer_for_peer(buffer, peer_id, cx)
4577            })
4578            .detach_and_log_err(cx);
4579        buffer.read(cx).remote_id()
4580    }
4581
4582    fn synchronize_remote_buffers(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
4583        let project_id = match self.client_state {
4584            ProjectClientState::Remote {
4585                sharing_has_stopped,
4586                remote_id,
4587                ..
4588            } => {
4589                if sharing_has_stopped {
4590                    return Task::ready(Err(anyhow!(
4591                        "can't synchronize remote buffers on a readonly project"
4592                    )));
4593                } else {
4594                    remote_id
4595                }
4596            }
4597            ProjectClientState::Shared { .. } | ProjectClientState::Local => {
4598                return Task::ready(Err(anyhow!(
4599                    "can't synchronize remote buffers on a local project"
4600                )))
4601            }
4602        };
4603
4604        let client = self.client.clone();
4605        cx.spawn(async move |this, cx| {
4606            let (buffers, incomplete_buffer_ids) = this.update(cx, |this, cx| {
4607                this.buffer_store.read(cx).buffer_version_info(cx)
4608            })?;
4609            let response = client
4610                .request(proto::SynchronizeBuffers {
4611                    project_id,
4612                    buffers,
4613                })
4614                .await?;
4615
4616            let send_updates_for_buffers = this.update(cx, |this, cx| {
4617                response
4618                    .buffers
4619                    .into_iter()
4620                    .map(|buffer| {
4621                        let client = client.clone();
4622                        let buffer_id = match BufferId::new(buffer.id) {
4623                            Ok(id) => id,
4624                            Err(e) => {
4625                                return Task::ready(Err(e));
4626                            }
4627                        };
4628                        let remote_version = language::proto::deserialize_version(&buffer.version);
4629                        if let Some(buffer) = this.buffer_for_id(buffer_id, cx) {
4630                            let operations =
4631                                buffer.read(cx).serialize_ops(Some(remote_version), cx);
4632                            cx.background_spawn(async move {
4633                                let operations = operations.await;
4634                                for chunk in split_operations(operations) {
4635                                    client
4636                                        .request(proto::UpdateBuffer {
4637                                            project_id,
4638                                            buffer_id: buffer_id.into(),
4639                                            operations: chunk,
4640                                        })
4641                                        .await?;
4642                                }
4643                                anyhow::Ok(())
4644                            })
4645                        } else {
4646                            Task::ready(Ok(()))
4647                        }
4648                    })
4649                    .collect::<Vec<_>>()
4650            })?;
4651
4652            // Any incomplete buffers have open requests waiting. Request that the host sends
4653            // creates these buffers for us again to unblock any waiting futures.
4654            for id in incomplete_buffer_ids {
4655                cx.background_spawn(client.request(proto::OpenBufferById {
4656                    project_id,
4657                    id: id.into(),
4658                }))
4659                .detach();
4660            }
4661
4662            futures::future::join_all(send_updates_for_buffers)
4663                .await
4664                .into_iter()
4665                .collect()
4666        })
4667    }
4668
4669    pub fn worktree_metadata_protos(&self, cx: &App) -> Vec<proto::WorktreeMetadata> {
4670        self.worktree_store.read(cx).worktree_metadata_protos(cx)
4671    }
4672
4673    /// Iterator of all open buffers that have unsaved changes
4674    pub fn dirty_buffers<'a>(&'a self, cx: &'a App) -> impl Iterator<Item = ProjectPath> + 'a {
4675        self.buffer_store.read(cx).buffers().filter_map(|buf| {
4676            let buf = buf.read(cx);
4677            if buf.is_dirty() {
4678                buf.project_path(cx)
4679            } else {
4680                None
4681            }
4682        })
4683    }
4684
4685    fn set_worktrees_from_proto(
4686        &mut self,
4687        worktrees: Vec<proto::WorktreeMetadata>,
4688        cx: &mut Context<Project>,
4689    ) -> Result<()> {
4690        self.worktree_store.update(cx, |worktree_store, cx| {
4691            worktree_store.set_worktrees_from_proto(worktrees, self.replica_id(), cx)
4692        })
4693    }
4694
4695    fn set_collaborators_from_proto(
4696        &mut self,
4697        messages: Vec<proto::Collaborator>,
4698        cx: &mut Context<Self>,
4699    ) -> Result<()> {
4700        let mut collaborators = HashMap::default();
4701        for message in messages {
4702            let collaborator = Collaborator::from_proto(message)?;
4703            collaborators.insert(collaborator.peer_id, collaborator);
4704        }
4705        for old_peer_id in self.collaborators.keys() {
4706            if !collaborators.contains_key(old_peer_id) {
4707                cx.emit(Event::CollaboratorLeft(*old_peer_id));
4708            }
4709        }
4710        self.collaborators = collaborators;
4711        Ok(())
4712    }
4713
4714    pub fn supplementary_language_servers<'a>(
4715        &'a self,
4716        cx: &'a App,
4717    ) -> impl 'a + Iterator<Item = (LanguageServerId, LanguageServerName)> {
4718        self.lsp_store.read(cx).supplementary_language_servers()
4719    }
4720
4721    pub fn any_language_server_supports_inlay_hints(&self, buffer: &Buffer, cx: &mut App) -> bool {
4722        self.lsp_store.update(cx, |this, cx| {
4723            this.language_servers_for_local_buffer(buffer, cx)
4724                .any(
4725                    |(_, server)| match server.capabilities().inlay_hint_provider {
4726                        Some(lsp::OneOf::Left(enabled)) => enabled,
4727                        Some(lsp::OneOf::Right(_)) => true,
4728                        None => false,
4729                    },
4730                )
4731        })
4732    }
4733
4734    pub fn language_server_id_for_name(
4735        &self,
4736        buffer: &Buffer,
4737        name: &str,
4738        cx: &mut App,
4739    ) -> Option<LanguageServerId> {
4740        self.lsp_store.update(cx, |this, cx| {
4741            this.language_servers_for_local_buffer(buffer, cx)
4742                .find_map(|(adapter, server)| {
4743                    if adapter.name.0 == name {
4744                        Some(server.server_id())
4745                    } else {
4746                        None
4747                    }
4748                })
4749        })
4750    }
4751
4752    pub fn has_language_servers_for(&self, buffer: &Buffer, cx: &mut App) -> bool {
4753        self.lsp_store.update(cx, |this, cx| {
4754            this.language_servers_for_local_buffer(buffer, cx)
4755                .next()
4756                .is_some()
4757        })
4758    }
4759
4760    pub fn git_init(
4761        &self,
4762        path: Arc<Path>,
4763        fallback_branch_name: String,
4764        cx: &App,
4765    ) -> Task<Result<()>> {
4766        self.git_store
4767            .read(cx)
4768            .git_init(path, fallback_branch_name, cx)
4769    }
4770
4771    pub fn buffer_store(&self) -> &Entity<BufferStore> {
4772        &self.buffer_store
4773    }
4774
4775    pub fn git_store(&self) -> &Entity<GitStore> {
4776        &self.git_store
4777    }
4778
4779    pub fn active_repository(&self, cx: &App) -> Option<Entity<Repository>> {
4780        self.git_store.read(cx).active_repository()
4781    }
4782
4783    pub fn repositories<'a>(&self, cx: &'a App) -> &'a HashMap<ProjectEntryId, Entity<Repository>> {
4784        self.git_store.read(cx).repositories()
4785    }
4786
4787    pub fn status_for_buffer_id(&self, buffer_id: BufferId, cx: &App) -> Option<FileStatus> {
4788        self.git_store.read(cx).status_for_buffer_id(buffer_id, cx)
4789    }
4790}
4791
4792pub struct PathMatchCandidateSet {
4793    pub snapshot: Snapshot,
4794    pub include_ignored: bool,
4795    pub include_root_name: bool,
4796    pub candidates: Candidates,
4797}
4798
4799pub enum Candidates {
4800    /// Only consider directories.
4801    Directories,
4802    /// Only consider files.
4803    Files,
4804    /// Consider directories and files.
4805    Entries,
4806}
4807
4808impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
4809    type Candidates = PathMatchCandidateSetIter<'a>;
4810
4811    fn id(&self) -> usize {
4812        self.snapshot.id().to_usize()
4813    }
4814
4815    fn len(&self) -> usize {
4816        match self.candidates {
4817            Candidates::Files => {
4818                if self.include_ignored {
4819                    self.snapshot.file_count()
4820                } else {
4821                    self.snapshot.visible_file_count()
4822                }
4823            }
4824
4825            Candidates::Directories => {
4826                if self.include_ignored {
4827                    self.snapshot.dir_count()
4828                } else {
4829                    self.snapshot.visible_dir_count()
4830                }
4831            }
4832
4833            Candidates::Entries => {
4834                if self.include_ignored {
4835                    self.snapshot.entry_count()
4836                } else {
4837                    self.snapshot.visible_entry_count()
4838                }
4839            }
4840        }
4841    }
4842
4843    fn prefix(&self) -> Arc<str> {
4844        if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
4845            self.snapshot.root_name().into()
4846        } else if self.include_root_name {
4847            format!("{}{}", self.snapshot.root_name(), std::path::MAIN_SEPARATOR).into()
4848        } else {
4849            Arc::default()
4850        }
4851    }
4852
4853    fn candidates(&'a self, start: usize) -> Self::Candidates {
4854        PathMatchCandidateSetIter {
4855            traversal: match self.candidates {
4856                Candidates::Directories => self.snapshot.directories(self.include_ignored, start),
4857                Candidates::Files => self.snapshot.files(self.include_ignored, start),
4858                Candidates::Entries => self.snapshot.entries(self.include_ignored, start),
4859            },
4860        }
4861    }
4862}
4863
4864pub struct PathMatchCandidateSetIter<'a> {
4865    traversal: Traversal<'a>,
4866}
4867
4868impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
4869    type Item = fuzzy::PathMatchCandidate<'a>;
4870
4871    fn next(&mut self) -> Option<Self::Item> {
4872        self.traversal
4873            .next()
4874            .map(|entry| fuzzy::PathMatchCandidate {
4875                is_dir: entry.kind.is_dir(),
4876                path: &entry.path,
4877                char_bag: entry.char_bag,
4878            })
4879    }
4880}
4881
4882impl EventEmitter<Event> for Project {}
4883
4884impl<'a> From<&'a ProjectPath> for SettingsLocation<'a> {
4885    fn from(val: &'a ProjectPath) -> Self {
4886        SettingsLocation {
4887            worktree_id: val.worktree_id,
4888            path: val.path.as_ref(),
4889        }
4890    }
4891}
4892
4893impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
4894    fn from((worktree_id, path): (WorktreeId, P)) -> Self {
4895        Self {
4896            worktree_id,
4897            path: path.as_ref().into(),
4898        }
4899    }
4900}
4901
4902pub fn relativize_path(base: &Path, path: &Path) -> PathBuf {
4903    let mut path_components = path.components();
4904    let mut base_components = base.components();
4905    let mut components: Vec<Component> = Vec::new();
4906    loop {
4907        match (path_components.next(), base_components.next()) {
4908            (None, None) => break,
4909            (Some(a), None) => {
4910                components.push(a);
4911                components.extend(path_components.by_ref());
4912                break;
4913            }
4914            (None, _) => components.push(Component::ParentDir),
4915            (Some(a), Some(b)) if components.is_empty() && a == b => (),
4916            (Some(a), Some(Component::CurDir)) => components.push(a),
4917            (Some(a), Some(_)) => {
4918                components.push(Component::ParentDir);
4919                for _ in base_components {
4920                    components.push(Component::ParentDir);
4921                }
4922                components.push(a);
4923                components.extend(path_components.by_ref());
4924                break;
4925            }
4926        }
4927    }
4928    components.iter().map(|c| c.as_os_str()).collect()
4929}
4930
4931fn resolve_path(base: &Path, path: &Path) -> PathBuf {
4932    let mut result = base.to_path_buf();
4933    for component in path.components() {
4934        match component {
4935            Component::ParentDir => {
4936                result.pop();
4937            }
4938            Component::CurDir => (),
4939            _ => result.push(component),
4940        }
4941    }
4942    result
4943}
4944
4945/// ResolvedPath is a path that has been resolved to either a ProjectPath
4946/// or an AbsPath and that *exists*.
4947#[derive(Debug, Clone)]
4948pub enum ResolvedPath {
4949    ProjectPath {
4950        project_path: ProjectPath,
4951        is_dir: bool,
4952    },
4953    AbsPath {
4954        path: PathBuf,
4955        is_dir: bool,
4956    },
4957}
4958
4959impl ResolvedPath {
4960    pub fn abs_path(&self) -> Option<&Path> {
4961        match self {
4962            Self::AbsPath { path, .. } => Some(path.as_path()),
4963            _ => None,
4964        }
4965    }
4966
4967    pub fn project_path(&self) -> Option<&ProjectPath> {
4968        match self {
4969            Self::ProjectPath { project_path, .. } => Some(&project_path),
4970            _ => None,
4971        }
4972    }
4973
4974    pub fn is_file(&self) -> bool {
4975        !self.is_dir()
4976    }
4977
4978    pub fn is_dir(&self) -> bool {
4979        match self {
4980            Self::ProjectPath { is_dir, .. } => *is_dir,
4981            Self::AbsPath { is_dir, .. } => *is_dir,
4982        }
4983    }
4984}
4985
4986impl ProjectItem for Buffer {
4987    fn try_open(
4988        project: &Entity<Project>,
4989        path: &ProjectPath,
4990        cx: &mut App,
4991    ) -> Option<Task<Result<Entity<Self>>>> {
4992        Some(project.update(cx, |project, cx| project.open_buffer(path.clone(), cx)))
4993    }
4994
4995    fn entry_id(&self, cx: &App) -> Option<ProjectEntryId> {
4996        File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
4997    }
4998
4999    fn project_path(&self, cx: &App) -> Option<ProjectPath> {
5000        File::from_dyn(self.file()).map(|file| ProjectPath {
5001            worktree_id: file.worktree_id(cx),
5002            path: file.path().clone(),
5003        })
5004    }
5005
5006    fn is_dirty(&self) -> bool {
5007        self.is_dirty()
5008    }
5009}
5010
5011impl Completion {
5012    /// A key that can be used to sort completions when displaying
5013    /// them to the user.
5014    pub fn sort_key(&self) -> (usize, &str) {
5015        const DEFAULT_KIND_KEY: usize = 2;
5016        let kind_key = self
5017            .source
5018            // `lsp::CompletionListItemDefaults` has no `kind` field
5019            .lsp_completion(false)
5020            .and_then(|lsp_completion| lsp_completion.kind)
5021            .and_then(|lsp_completion_kind| match lsp_completion_kind {
5022                lsp::CompletionItemKind::KEYWORD => Some(0),
5023                lsp::CompletionItemKind::VARIABLE => Some(1),
5024                _ => None,
5025            })
5026            .unwrap_or(DEFAULT_KIND_KEY);
5027        (kind_key, &self.label.text[self.label.filter_range.clone()])
5028    }
5029
5030    /// Whether this completion is a snippet.
5031    pub fn is_snippet(&self) -> bool {
5032        self.source
5033            // `lsp::CompletionListItemDefaults` has `insert_text_format` field
5034            .lsp_completion(true)
5035            .map_or(false, |lsp_completion| {
5036                lsp_completion.insert_text_format == Some(lsp::InsertTextFormat::SNIPPET)
5037            })
5038    }
5039
5040    /// Returns the corresponding color for this completion.
5041    ///
5042    /// Will return `None` if this completion's kind is not [`CompletionItemKind::COLOR`].
5043    pub fn color(&self) -> Option<Hsla> {
5044        // `lsp::CompletionListItemDefaults` has no `kind` field
5045        let lsp_completion = self.source.lsp_completion(false)?;
5046        if lsp_completion.kind? == CompletionItemKind::COLOR {
5047            return color_extractor::extract_color(&lsp_completion);
5048        }
5049        None
5050    }
5051}
5052
5053pub fn sort_worktree_entries(entries: &mut [impl AsRef<Entry>]) {
5054    entries.sort_by(|entry_a, entry_b| {
5055        let entry_a = entry_a.as_ref();
5056        let entry_b = entry_b.as_ref();
5057        compare_paths(
5058            (&entry_a.path, entry_a.is_file()),
5059            (&entry_b.path, entry_b.is_file()),
5060        )
5061    });
5062}
5063
5064fn proto_to_prompt(level: proto::language_server_prompt_request::Level) -> gpui::PromptLevel {
5065    match level {
5066        proto::language_server_prompt_request::Level::Info(_) => gpui::PromptLevel::Info,
5067        proto::language_server_prompt_request::Level::Warning(_) => gpui::PromptLevel::Warning,
5068        proto::language_server_prompt_request::Level::Critical(_) => gpui::PromptLevel::Critical,
5069    }
5070}