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