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