project.rs

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