Debugger implementation (#13433)

###  DISCLAIMER

> As of 6th March 2025, debugger is still in development. We plan to
merge it behind a staff-only feature flag for staff use only, followed
by non-public release and then finally a public one (akin to how Git
panel release was handled). This is done to ensure the best experience
when it gets released.

### END OF DISCLAIMER 

**The current state of the debugger implementation:**


https://github.com/user-attachments/assets/c4deff07-80dd-4dc6-ad2e-0c252a478fe9


https://github.com/user-attachments/assets/e1ed2345-b750-4bb6-9c97-50961b76904f

----

All the todo's are in the following channel, so it's easier to work on
this together:
https://zed.dev/channel/zed-debugger-11370

If you are on Linux, you can use the following command to join the
channel:
```cli
zed https://zed.dev/channel/zed-debugger-11370 
```

## Current Features

- Collab
  - Breakpoints
    - Sync when you (re)join a project
    - Sync when you add/remove a breakpoint
  - Sync active debug line
  - Stack frames
    - Click on stack frame
      - View variables that belong to the stack frame
      - Visit the source file
    - Restart stack frame (if adapter supports this)
  - Variables
  - Loaded sources
  - Modules
  - Controls
    - Continue
    - Step back
      - Stepping granularity (configurable)
    - Step into
      - Stepping granularity (configurable)
    - Step over
      - Stepping granularity (configurable)
    - Step out
      - Stepping granularity (configurable)
  - Debug console
- Breakpoints
  - Log breakpoints
  - line breakpoints
  - Persistent between zed sessions (configurable)
  - Multi buffer support
  - Toggle disable/enable all breakpoints
- Stack frames
  - Click on stack frame
    - View variables that belong to the stack frame
    - Visit the source file
    - Show collapsed stack frames
  - Restart stack frame (if adapter supports this)
- Loaded sources
  - View all used loaded sources if supported by adapter.
- Modules
  - View all used modules (if adapter supports this)
- Variables
  - Copy value
  - Copy name
  - Copy memory reference
  - Set value (if adapter supports this)
  - keyboard navigation
- Debug Console
  - See logs
  - View output that was sent from debug adapter
    - Output grouping
  - Evaluate code
    - Updates the variable list
    - Auto completion
- If not supported by adapter, we will show auto-completion for existing
variables
- Debug Terminal
- Run custom commands and change env values right inside your Zed
terminal
- Attach to process (if adapter supports this)
  - Process picker
- Controls
  - Continue
  - Step back
    - Stepping granularity (configurable)
  - Step into
    - Stepping granularity (configurable)
  - Step over
    - Stepping granularity (configurable)
  - Step out
    - Stepping granularity (configurable)
  - Disconnect
  - Restart
  - Stop
- Warning when a debug session exited without hitting any breakpoint
- Debug view to see Adapter/RPC log messages
- Testing
  - Fake debug adapter
    - Fake requests & events

---

Release Notes:

- N/A

---------

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Piotr Osiewicz <peterosiewicz@gmail.com>
Co-authored-by: Piotr <piotr@zed.dev>

crates/debugger_tools/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "debugger_tools"
+version = "0.1.0"
+edition.workspace = true
+publish.workspace = true
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/debugger_tools.rs"
+doctest = false
+
+[dependencies]
+anyhow.workspace = true
+dap.workspace = true
+editor.workspace = true
+futures.workspace = true
+gpui.workspace = true
+project.workspace = true
+serde_json.workspace = true
+settings.workspace = true
+smol.workspace = true
+util.workspace = true
+workspace.workspace = true

crates/debugger_tools/LICENSE-GPL

@@ -0,0 +1 @@
+../../LICENSE-GPL

crates/debugger_tools/src/dap_log.rs

@@ -0,0 +1,845 @@
+use dap::{
+    client::SessionId,
+    debugger_settings::DebuggerSettings,
+    transport::{IoKind, LogKind},
+};
+use editor::{Editor, EditorEvent};
+use futures::{
+    channel::mpsc::{unbounded, UnboundedSender},
+    StreamExt,
+};
+use gpui::{
+    actions, div, App, AppContext, Context, Empty, Entity, EventEmitter, FocusHandle, Focusable,
+    IntoElement, ParentElement, Render, SharedString, Styled, Subscription, WeakEntity, Window,
+};
+use project::{
+    debugger::{dap_store, session::Session},
+    search::SearchQuery,
+    Project,
+};
+use settings::Settings as _;
+use std::{
+    borrow::Cow,
+    collections::{HashMap, VecDeque},
+    sync::Arc,
+};
+use util::maybe;
+use workspace::{
+    item::Item,
+    searchable::{Direction, SearchEvent, SearchableItem, SearchableItemHandle},
+    ui::{h_flex, Button, Clickable, ContextMenu, Label, LabelCommon, PopoverMenu},
+    ToolbarItemEvent, ToolbarItemView, Workspace,
+};
+
+struct DapLogView {
+    editor: Entity<Editor>,
+    focus_handle: FocusHandle,
+    log_store: Entity<LogStore>,
+    editor_subscriptions: Vec<Subscription>,
+    current_view: Option<(SessionId, LogKind)>,
+    project: Entity<Project>,
+    _subscriptions: Vec<Subscription>,
+}
+
+struct LogStore {
+    projects: HashMap<WeakEntity<Project>, ProjectState>,
+    debug_clients: HashMap<SessionId, DebugAdapterState>,
+    rpc_tx: UnboundedSender<(SessionId, IoKind, String)>,
+    adapter_log_tx: UnboundedSender<(SessionId, IoKind, String)>,
+}
+
+struct ProjectState {
+    _subscriptions: [gpui::Subscription; 2],
+}
+
+struct DebugAdapterState {
+    log_messages: VecDeque<String>,
+    rpc_messages: RpcMessages,
+}
+
+struct RpcMessages {
+    messages: VecDeque<String>,
+    last_message_kind: Option<MessageKind>,
+}
+
+impl RpcMessages {
+    const MESSAGE_QUEUE_LIMIT: usize = 255;
+
+    fn new() -> Self {
+        Self {
+            last_message_kind: None,
+            messages: VecDeque::with_capacity(Self::MESSAGE_QUEUE_LIMIT),
+        }
+    }
+}
+
+const SEND: &str = "// Send";
+const RECEIVE: &str = "// Receive";
+
+#[derive(Clone, Copy, PartialEq, Eq)]
+enum MessageKind {
+    Send,
+    Receive,
+}
+
+impl MessageKind {
+    fn label(&self) -> &'static str {
+        match self {
+            Self::Send => SEND,
+            Self::Receive => RECEIVE,
+        }
+    }
+}
+
+impl DebugAdapterState {
+    fn new() -> Self {
+        Self {
+            log_messages: VecDeque::new(),
+            rpc_messages: RpcMessages::new(),
+        }
+    }
+}
+
+impl LogStore {
+    fn new(cx: &Context<Self>) -> Self {
+        let (rpc_tx, mut rpc_rx) = unbounded::<(SessionId, IoKind, String)>();
+        cx.spawn(|this, mut cx| async move {
+            while let Some((client_id, io_kind, message)) = rpc_rx.next().await {
+                if let Some(this) = this.upgrade() {
+                    this.update(&mut cx, |this, cx| {
+                        this.on_rpc_log(client_id, io_kind, &message, cx);
+                    })?;
+                }
+
+                smol::future::yield_now().await;
+            }
+            anyhow::Ok(())
+        })
+        .detach_and_log_err(cx);
+
+        let (adapter_log_tx, mut adapter_log_rx) = unbounded::<(SessionId, IoKind, String)>();
+        cx.spawn(|this, mut cx| async move {
+            while let Some((client_id, io_kind, message)) = adapter_log_rx.next().await {
+                if let Some(this) = this.upgrade() {
+                    this.update(&mut cx, |this, cx| {
+                        this.on_adapter_log(client_id, io_kind, &message, cx);
+                    })?;
+                }
+
+                smol::future::yield_now().await;
+            }
+            anyhow::Ok(())
+        })
+        .detach_and_log_err(cx);
+        Self {
+            rpc_tx,
+            adapter_log_tx,
+            projects: HashMap::new(),
+            debug_clients: HashMap::new(),
+        }
+    }
+
+    fn on_rpc_log(
+        &mut self,
+        client_id: SessionId,
+        io_kind: IoKind,
+        message: &str,
+        cx: &mut Context<Self>,
+    ) {
+        self.add_debug_client_message(client_id, io_kind, message.to_string(), cx);
+    }
+
+    fn on_adapter_log(
+        &mut self,
+        client_id: SessionId,
+        io_kind: IoKind,
+        message: &str,
+        cx: &mut Context<Self>,
+    ) {
+        self.add_debug_client_log(client_id, io_kind, message.to_string(), cx);
+    }
+
+    pub fn add_project(&mut self, project: &Entity<Project>, cx: &mut Context<Self>) {
+        let weak_project = project.downgrade();
+        self.projects.insert(
+            project.downgrade(),
+            ProjectState {
+                _subscriptions: [
+                    cx.observe_release(project, move |this, _, _| {
+                        this.projects.remove(&weak_project);
+                    }),
+                    cx.subscribe(
+                        &project.read(cx).dap_store(),
+                        |this, dap_store, event, cx| match event {
+                            dap_store::DapStoreEvent::DebugClientStarted(session_id) => {
+                                let session = dap_store.read(cx).session_by_id(session_id);
+                                if let Some(session) = session {
+                                    this.add_debug_client(*session_id, session, cx);
+                                }
+                            }
+                            dap_store::DapStoreEvent::DebugClientShutdown(session_id) => {
+                                this.remove_debug_client(*session_id, cx);
+                            }
+
+                            _ => {}
+                        },
+                    ),
+                ],
+            },
+        );
+    }
+
+    fn get_debug_adapter_state(&mut self, id: SessionId) -> Option<&mut DebugAdapterState> {
+        self.debug_clients.get_mut(&id)
+    }
+
+    fn add_debug_client_message(
+        &mut self,
+        id: SessionId,
+        io_kind: IoKind,
+        message: String,
+        cx: &mut Context<Self>,
+    ) {
+        let Some(debug_client_state) = self.get_debug_adapter_state(id) else {
+            return;
+        };
+
+        let kind = match io_kind {
+            IoKind::StdOut | IoKind::StdErr => MessageKind::Receive,
+            IoKind::StdIn => MessageKind::Send,
+        };
+
+        let rpc_messages = &mut debug_client_state.rpc_messages;
+        if rpc_messages.last_message_kind != Some(kind) {
+            Self::add_debug_client_entry(
+                &mut rpc_messages.messages,
+                id,
+                kind.label().to_string(),
+                LogKind::Rpc,
+                cx,
+            );
+            rpc_messages.last_message_kind = Some(kind);
+        }
+        Self::add_debug_client_entry(&mut rpc_messages.messages, id, message, LogKind::Rpc, cx);
+
+        cx.notify();
+    }
+
+    fn add_debug_client_log(
+        &mut self,
+        id: SessionId,
+        io_kind: IoKind,
+        message: String,
+        cx: &mut Context<Self>,
+    ) {
+        let Some(debug_client_state) = self.get_debug_adapter_state(id) else {
+            return;
+        };
+
+        let message = match io_kind {
+            IoKind::StdErr => {
+                let mut message = message.clone();
+                message.insert_str(0, "stderr: ");
+                message
+            }
+            _ => message,
+        };
+
+        Self::add_debug_client_entry(
+            &mut debug_client_state.log_messages,
+            id,
+            message,
+            LogKind::Adapter,
+            cx,
+        );
+        cx.notify();
+    }
+
+    fn add_debug_client_entry(
+        log_lines: &mut VecDeque<String>,
+        id: SessionId,
+        message: String,
+        kind: LogKind,
+        cx: &mut Context<Self>,
+    ) {
+        while log_lines.len() >= RpcMessages::MESSAGE_QUEUE_LIMIT {
+            log_lines.pop_front();
+        }
+
+        let format_messages = DebuggerSettings::get_global(cx).format_dap_log_messages;
+
+        let entry = if format_messages {
+            maybe!({
+                serde_json::to_string_pretty::<serde_json::Value>(
+                    &serde_json::from_str(&message).ok()?,
+                )
+                .ok()
+            })
+            .unwrap_or(message)
+        } else {
+            message
+        };
+        log_lines.push_back(entry.clone());
+
+        cx.emit(Event::NewLogEntry { id, entry, kind });
+    }
+
+    fn add_debug_client(
+        &mut self,
+        client_id: SessionId,
+        client: Entity<Session>,
+        cx: &App,
+    ) -> Option<&mut DebugAdapterState> {
+        let client_state = self
+            .debug_clients
+            .entry(client_id)
+            .or_insert_with(DebugAdapterState::new);
+
+        let io_tx = self.rpc_tx.clone();
+
+        let client = client.read(cx).adapter_client()?;
+        client.add_log_handler(
+            move |io_kind, message| {
+                io_tx
+                    .unbounded_send((client_id, io_kind, message.to_string()))
+                    .ok();
+            },
+            LogKind::Rpc,
+        );
+
+        let log_io_tx = self.adapter_log_tx.clone();
+        client.add_log_handler(
+            move |io_kind, message| {
+                log_io_tx
+                    .unbounded_send((client_id, io_kind, message.to_string()))
+                    .ok();
+            },
+            LogKind::Adapter,
+        );
+
+        Some(client_state)
+    }
+
+    fn remove_debug_client(&mut self, client_id: SessionId, cx: &mut Context<Self>) {
+        self.debug_clients.remove(&client_id);
+        cx.notify();
+    }
+
+    fn log_messages_for_client(&mut self, client_id: SessionId) -> Option<&mut VecDeque<String>> {
+        Some(&mut self.debug_clients.get_mut(&client_id)?.log_messages)
+    }
+
+    fn rpc_messages_for_client(&mut self, client_id: SessionId) -> Option<&mut VecDeque<String>> {
+        Some(
+            &mut self
+                .debug_clients
+                .get_mut(&client_id)?
+                .rpc_messages
+                .messages,
+        )
+    }
+}
+
+pub struct DapLogToolbarItemView {
+    log_view: Option<Entity<DapLogView>>,
+}
+
+impl DapLogToolbarItemView {
+    pub fn new() -> Self {
+        Self { log_view: None }
+    }
+}
+
+impl Render for DapLogToolbarItemView {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        let Some(log_view) = self.log_view.clone() else {
+            return Empty.into_any_element();
+        };
+
+        let (menu_rows, current_client_id) = log_view.update(cx, |log_view, cx| {
+            (
+                log_view.menu_items(cx).unwrap_or_default(),
+                log_view.current_view.map(|(client_id, _)| client_id),
+            )
+        });
+
+        let current_client = current_client_id.and_then(|current_client_id| {
+            menu_rows
+                .iter()
+                .find(|row| row.client_id == current_client_id)
+        });
+
+        let dap_menu: PopoverMenu<_> = PopoverMenu::new("DapLogView")
+            .anchor(gpui::Corner::TopLeft)
+            .trigger(Button::new(
+                "debug_client_menu_header",
+                current_client
+                    .map(|sub_item| {
+                        Cow::Owned(format!(
+                            "{} ({}) - {}",
+                            sub_item.client_name,
+                            sub_item.client_id.0,
+                            match sub_item.selected_entry {
+                                LogKind::Adapter => ADAPTER_LOGS,
+                                LogKind::Rpc => RPC_MESSAGES,
+                            }
+                        ))
+                    })
+                    .unwrap_or_else(|| "No adapter selected".into()),
+            ))
+            .menu(move |mut window, cx| {
+                let log_view = log_view.clone();
+                let menu_rows = menu_rows.clone();
+                ContextMenu::build(&mut window, cx, move |mut menu, window, _cx| {
+                    for row in menu_rows.into_iter() {
+                        menu = menu.custom_row(move |_window, _cx| {
+                            div()
+                                .w_full()
+                                .pl_2()
+                                .child(
+                                    Label::new(
+                                        format!("{}. {}", row.client_id.0, row.client_name,),
+                                    )
+                                    .color(workspace::ui::Color::Muted),
+                                )
+                                .into_any_element()
+                        });
+
+                        if row.has_adapter_logs {
+                            menu = menu.custom_entry(
+                                move |_window, _cx| {
+                                    div()
+                                        .w_full()
+                                        .pl_4()
+                                        .child(Label::new(ADAPTER_LOGS))
+                                        .into_any_element()
+                                },
+                                window.handler_for(&log_view, move |view, window, cx| {
+                                    view.show_log_messages_for_adapter(row.client_id, window, cx);
+                                }),
+                            );
+                        }
+
+                        menu = menu.custom_entry(
+                            move |_window, _cx| {
+                                div()
+                                    .w_full()
+                                    .pl_4()
+                                    .child(Label::new(RPC_MESSAGES))
+                                    .into_any_element()
+                            },
+                            window.handler_for(&log_view, move |view, window, cx| {
+                                view.show_rpc_trace_for_server(row.client_id, window, cx);
+                            }),
+                        );
+                    }
+
+                    menu
+                })
+                .into()
+            });
+
+        h_flex()
+            .size_full()
+            .child(dap_menu)
+            .child(
+                div()
+                    .child(
+                        Button::new("clear_log_button", "Clear").on_click(cx.listener(
+                            |this, _, window, cx| {
+                                if let Some(log_view) = this.log_view.as_ref() {
+                                    log_view.update(cx, |log_view, cx| {
+                                        log_view.editor.update(cx, |editor, cx| {
+                                            editor.set_read_only(false);
+                                            editor.clear(window, cx);
+                                            editor.set_read_only(true);
+                                        });
+                                    })
+                                }
+                            },
+                        )),
+                    )
+                    .ml_2(),
+            )
+            .into_any_element()
+    }
+}
+
+impl EventEmitter<ToolbarItemEvent> for DapLogToolbarItemView {}
+
+impl ToolbarItemView for DapLogToolbarItemView {
+    fn set_active_pane_item(
+        &mut self,
+        active_pane_item: Option<&dyn workspace::item::ItemHandle>,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> workspace::ToolbarItemLocation {
+        if let Some(item) = active_pane_item {
+            if let Some(log_view) = item.downcast::<DapLogView>() {
+                self.log_view = Some(log_view.clone());
+                return workspace::ToolbarItemLocation::PrimaryLeft;
+            }
+        }
+        self.log_view = None;
+
+        cx.notify();
+
+        workspace::ToolbarItemLocation::Hidden
+    }
+}
+
+impl DapLogView {
+    pub fn new(
+        project: Entity<Project>,
+        log_store: Entity<LogStore>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> Self {
+        let (editor, editor_subscriptions) = Self::editor_for_logs(String::new(), window, cx);
+
+        let focus_handle = cx.focus_handle();
+
+        let events_subscriptions = cx.subscribe(&log_store, |log_view, _, event, cx| match event {
+            Event::NewLogEntry { id, entry, kind } => {
+                if log_view.current_view == Some((*id, *kind)) {
+                    log_view.editor.update(cx, |editor, cx| {
+                        editor.set_read_only(false);
+                        let last_point = editor.buffer().read(cx).len(cx);
+                        editor.edit(
+                            vec![
+                                (last_point..last_point, entry.trim()),
+                                (last_point..last_point, "\n"),
+                            ],
+                            cx,
+                        );
+                        editor.set_read_only(true);
+                    });
+                }
+            }
+        });
+
+        Self {
+            editor,
+            focus_handle,
+            project,
+            log_store,
+            editor_subscriptions,
+            current_view: None,
+            _subscriptions: vec![events_subscriptions],
+        }
+    }
+
+    fn editor_for_logs(
+        log_contents: String,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> (Entity<Editor>, Vec<Subscription>) {
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::multi_line(window, cx);
+            editor.set_text(log_contents, window, cx);
+            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
+            editor.set_show_code_actions(false, cx);
+            editor.set_show_breakpoints(false, cx);
+            editor.set_show_git_diff_gutter(false, cx);
+            editor.set_show_runnables(false, cx);
+            editor.set_input_enabled(false);
+            editor.set_use_autoclose(false);
+            editor.set_read_only(true);
+            editor.set_show_edit_predictions(Some(false), window, cx);
+            editor
+        });
+        let editor_subscription = cx.subscribe(
+            &editor,
+            |_, _, event: &EditorEvent, cx: &mut Context<'_, DapLogView>| cx.emit(event.clone()),
+        );
+        let search_subscription = cx.subscribe(
+            &editor,
+            |_, _, event: &SearchEvent, cx: &mut Context<'_, DapLogView>| cx.emit(event.clone()),
+        );
+        (editor, vec![editor_subscription, search_subscription])
+    }
+
+    fn menu_items(&self, cx: &App) -> Option<Vec<DapMenuItem>> {
+        let mut menu_items = self
+            .project
+            .read(cx)
+            .dap_store()
+            .read(cx)
+            .sessions()
+            .filter_map(|client| {
+                let client = client.read(cx).adapter_client()?;
+                Some(DapMenuItem {
+                    client_id: client.id(),
+                    client_name: client.name().0.as_ref().into(),
+                    has_adapter_logs: client.has_adapter_logs(),
+                    selected_entry: self.current_view.map_or(LogKind::Adapter, |(_, kind)| kind),
+                })
+            })
+            .collect::<Vec<_>>();
+        menu_items.sort_by_key(|item| item.client_id.0);
+        Some(menu_items)
+    }
+
+    fn show_rpc_trace_for_server(
+        &mut self,
+        client_id: SessionId,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let rpc_log = self.log_store.update(cx, |log_store, _| {
+            log_store
+                .rpc_messages_for_client(client_id)
+                .map(|state| log_contents(&state))
+        });
+        if let Some(rpc_log) = rpc_log {
+            self.current_view = Some((client_id, LogKind::Rpc));
+            let (editor, editor_subscriptions) = Self::editor_for_logs(rpc_log, window, cx);
+            let language = self.project.read(cx).languages().language_for_name("JSON");
+            editor
+                .read(cx)
+                .buffer()
+                .read(cx)
+                .as_singleton()
+                .expect("log buffer should be a singleton")
+                .update(cx, |_, cx| {
+                    cx.spawn({
+                        let buffer = cx.entity();
+                        |_, mut cx| async move {
+                            let language = language.await.ok();
+                            buffer.update(&mut cx, |buffer, cx| {
+                                buffer.set_language(language, cx);
+                            })
+                        }
+                    })
+                    .detach_and_log_err(cx);
+                });
+
+            self.editor = editor;
+            self.editor_subscriptions = editor_subscriptions;
+            cx.notify();
+        }
+
+        cx.focus_self(window);
+    }
+
+    fn show_log_messages_for_adapter(
+        &mut self,
+        client_id: SessionId,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let message_log = self.log_store.update(cx, |log_store, _| {
+            log_store
+                .log_messages_for_client(client_id)
+                .map(|state| log_contents(&state))
+        });
+        if let Some(message_log) = message_log {
+            self.current_view = Some((client_id, LogKind::Adapter));
+            let (editor, editor_subscriptions) = Self::editor_for_logs(message_log, window, cx);
+            editor
+                .read(cx)
+                .buffer()
+                .read(cx)
+                .as_singleton()
+                .expect("log buffer should be a singleton");
+
+            self.editor = editor;
+            self.editor_subscriptions = editor_subscriptions;
+            cx.notify();
+        }
+
+        cx.focus_self(window);
+    }
+}
+
+fn log_contents(lines: &VecDeque<String>) -> String {
+    let (a, b) = lines.as_slices();
+    let a = a.iter().map(move |v| v.as_ref());
+    let b = b.iter().map(move |v| v.as_ref());
+    a.chain(b).fold(String::new(), |mut acc, el| {
+        acc.push_str(el);
+        acc.push('\n');
+        acc
+    })
+}
+
+#[derive(Clone, PartialEq)]
+pub(crate) struct DapMenuItem {
+    pub client_id: SessionId,
+    pub client_name: String,
+    pub has_adapter_logs: bool,
+    pub selected_entry: LogKind,
+}
+
+const ADAPTER_LOGS: &str = "Adapter Logs";
+const RPC_MESSAGES: &str = "RPC Messages";
+
+impl Render for DapLogView {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        self.editor.update(cx, |editor, cx| {
+            editor.render(window, cx).into_any_element()
+        })
+    }
+}
+
+actions!(debug, [OpenDebuggerAdapterLogs]);
+
+pub fn init(cx: &mut App) {
+    let log_store = cx.new(|cx| LogStore::new(cx));
+
+    cx.observe_new(move |workspace: &mut Workspace, window, cx| {
+        let Some(_window) = window else {
+            return;
+        };
+
+        let project = workspace.project();
+        if project.read(cx).is_local() {
+            log_store.update(cx, |store, cx| {
+                store.add_project(project, cx);
+            });
+        }
+
+        let log_store = log_store.clone();
+        workspace.register_action(move |workspace, _: &OpenDebuggerAdapterLogs, window, cx| {
+            let project = workspace.project().read(cx);
+            if project.is_local() {
+                workspace.add_item_to_active_pane(
+                    Box::new(cx.new(|cx| {
+                        DapLogView::new(workspace.project().clone(), log_store.clone(), window, cx)
+                    })),
+                    None,
+                    true,
+                    window,
+                    cx,
+                );
+            }
+        });
+    })
+    .detach();
+}
+
+impl Item for DapLogView {
+    type Event = EditorEvent;
+
+    fn to_item_events(event: &Self::Event, f: impl FnMut(workspace::item::ItemEvent)) {
+        Editor::to_item_events(event, f)
+    }
+
+    fn tab_content_text(&self, _window: &Window, _cx: &App) -> Option<SharedString> {
+        Some("DAP Logs".into())
+    }
+
+    fn telemetry_event_text(&self) -> Option<&'static str> {
+        None
+    }
+
+    fn as_searchable(&self, handle: &Entity<Self>) -> Option<Box<dyn SearchableItemHandle>> {
+        Some(Box::new(handle.clone()))
+    }
+}
+
+impl SearchableItem for DapLogView {
+    type Match = <Editor as SearchableItem>::Match;
+
+    fn clear_matches(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        self.editor.update(cx, |e, cx| e.clear_matches(window, cx))
+    }
+
+    fn update_matches(
+        &mut self,
+        matches: &[Self::Match],
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.editor
+            .update(cx, |e, cx| e.update_matches(matches, window, cx))
+    }
+
+    fn query_suggestion(&mut self, window: &mut Window, cx: &mut Context<Self>) -> String {
+        self.editor
+            .update(cx, |e, cx| e.query_suggestion(window, cx))
+    }
+
+    fn activate_match(
+        &mut self,
+        index: usize,
+        matches: &[Self::Match],
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.editor
+            .update(cx, |e, cx| e.activate_match(index, matches, window, cx))
+    }
+
+    fn select_matches(
+        &mut self,
+        matches: &[Self::Match],
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.editor
+            .update(cx, |e, cx| e.select_matches(matches, window, cx))
+    }
+
+    fn find_matches(
+        &mut self,
+        query: Arc<project::search::SearchQuery>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> gpui::Task<Vec<Self::Match>> {
+        self.editor
+            .update(cx, |e, cx| e.find_matches(query, window, cx))
+    }
+
+    fn replace(
+        &mut self,
+        _: &Self::Match,
+        _: &SearchQuery,
+        _window: &mut Window,
+        _: &mut Context<Self>,
+    ) {
+        // Since DAP Log is read-only, it doesn't make sense to support replace operation.
+    }
+
+    fn supported_options(&self) -> workspace::searchable::SearchOptions {
+        workspace::searchable::SearchOptions {
+            case: true,
+            word: true,
+            regex: true,
+            find_in_results: true,
+            // DAP log is read-only.
+            replacement: false,
+            selection: false,
+        }
+    }
+    fn active_match_index(
+        &mut self,
+        direction: Direction,
+        matches: &[Self::Match],
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) -> Option<usize> {
+        self.editor.update(cx, |e, cx| {
+            e.active_match_index(direction, matches, window, cx)
+        })
+    }
+}
+
+impl Focusable for DapLogView {
+    fn focus_handle(&self, _cx: &App) -> FocusHandle {
+        self.focus_handle.clone()
+    }
+}
+
+pub enum Event {
+    NewLogEntry {
+        id: SessionId,
+        entry: String,
+        kind: LogKind,
+    },
+}
+
+impl EventEmitter<Event> for LogStore {}
+impl EventEmitter<Event> for DapLogView {}
+impl EventEmitter<EditorEvent> for DapLogView {}
+impl EventEmitter<SearchEvent> for DapLogView {}

crates/debugger_tools/src/debugger_tools.rs

@@ -0,0 +1,8 @@
+mod dap_log;
+pub use dap_log::*;
+
+use gpui::App;
+
+pub fn init(cx: &mut App) {
+    dap_log::init(cx);
+}