Files
zed/crates/copilot/src/copilot.rs
T
Kirill Bulatov 89b1e76003 Fix gopls langserver downloads (#7571)
Fixes https://github.com/zed-industries/zed/issues/7534 by not requiring
assets for gopls and vscode-eslint langservers — those two are the only
ones in Zed that do not use assets directly when determining langserver
version and retrieving those.
All other servers deal with assets, hence require those to be present.

The problem with https://github.com/tamasfe/taplo/releases is that they
host multiple binary releases in the same release list, so for now the
code works because only the langserver has assets — but as soon as
another release there gets assets, it will break again.
We could filter out those by names also, but they also tend to change
(and can be edited manually), so keeping it as is for now.

Release Notes:

- Fixed gopls language server downloads
([7534](https://github.com/zed-industries/zed/issues/7534))
2024-02-08 16:17:47 +02:00

1283 lines
46 KiB
Rust

pub mod request;
use anyhow::{anyhow, Context as _, Result};
use async_compression::futures::bufread::GzipDecoder;
use async_tar::Archive;
use collections::{HashMap, HashSet};
use futures::{channel::oneshot, future::Shared, Future, FutureExt, TryFutureExt};
use gpui::{
actions, AppContext, AsyncAppContext, Context, Entity, EntityId, EventEmitter, Global, Model,
ModelContext, Task, WeakModel,
};
use language::{
language_settings::{all_language_settings, language_settings},
point_from_lsp, point_to_lsp, Anchor, Bias, Buffer, BufferSnapshot, Language,
LanguageServerName, PointUtf16, ToPointUtf16,
};
use lsp::{LanguageServer, LanguageServerBinary, LanguageServerId};
use node_runtime::NodeRuntime;
use parking_lot::Mutex;
use request::StatusNotification;
use settings::SettingsStore;
use smol::{fs, io::BufReader, stream::StreamExt};
use std::{
any::TypeId,
ffi::OsString,
mem,
ops::Range,
path::{Path, PathBuf},
sync::Arc,
};
use util::{
async_maybe, fs::remove_matching, github::latest_github_release, http::HttpClient, paths,
ResultExt,
};
// HACK: This type is only defined in `copilot` since it is the earliest ancestor
// of the crates that use it.
//
// This is not great. Let's find a better place for it to live.
#[derive(Default)]
pub struct CommandPaletteFilter {
pub hidden_namespaces: HashSet<&'static str>,
pub hidden_action_types: HashSet<TypeId>,
}
impl Global for CommandPaletteFilter {}
actions!(
copilot,
[
Suggest,
NextSuggestion,
PreviousSuggestion,
Reinstall,
SignIn,
SignOut
]
);
pub fn init(
new_server_id: LanguageServerId,
http: Arc<dyn HttpClient>,
node_runtime: Arc<dyn NodeRuntime>,
cx: &mut AppContext,
) {
let copilot = cx.new_model({
let node_runtime = node_runtime.clone();
move |cx| Copilot::start(new_server_id, http, node_runtime, cx)
});
Copilot::set_global(copilot.clone(), cx);
cx.observe(&copilot, |handle, cx| {
let copilot_action_types = [
TypeId::of::<Suggest>(),
TypeId::of::<NextSuggestion>(),
TypeId::of::<PreviousSuggestion>(),
TypeId::of::<Reinstall>(),
];
let copilot_auth_action_types = [TypeId::of::<SignOut>()];
let copilot_no_auth_action_types = [TypeId::of::<SignIn>()];
let status = handle.read(cx).status();
let filter = cx.default_global::<CommandPaletteFilter>();
match status {
Status::Disabled => {
filter.hidden_action_types.extend(copilot_action_types);
filter.hidden_action_types.extend(copilot_auth_action_types);
filter
.hidden_action_types
.extend(copilot_no_auth_action_types);
}
Status::Authorized => {
filter
.hidden_action_types
.extend(copilot_no_auth_action_types);
for type_id in copilot_action_types
.iter()
.chain(&copilot_auth_action_types)
{
filter.hidden_action_types.remove(type_id);
}
}
_ => {
filter.hidden_action_types.extend(copilot_action_types);
filter.hidden_action_types.extend(copilot_auth_action_types);
for type_id in &copilot_no_auth_action_types {
filter.hidden_action_types.remove(type_id);
}
}
}
})
.detach();
cx.on_action(|_: &SignIn, cx| {
if let Some(copilot) = Copilot::global(cx) {
copilot
.update(cx, |copilot, cx| copilot.sign_in(cx))
.detach_and_log_err(cx);
}
});
cx.on_action(|_: &SignOut, cx| {
if let Some(copilot) = Copilot::global(cx) {
copilot
.update(cx, |copilot, cx| copilot.sign_out(cx))
.detach_and_log_err(cx);
}
});
cx.on_action(|_: &Reinstall, cx| {
if let Some(copilot) = Copilot::global(cx) {
copilot
.update(cx, |copilot, cx| copilot.reinstall(cx))
.detach();
}
});
}
enum CopilotServer {
Disabled,
Starting { task: Shared<Task<()>> },
Error(Arc<str>),
Running(RunningCopilotServer),
}
impl CopilotServer {
fn as_authenticated(&mut self) -> Result<&mut RunningCopilotServer> {
let server = self.as_running()?;
if matches!(server.sign_in_status, SignInStatus::Authorized { .. }) {
Ok(server)
} else {
Err(anyhow!("must sign in before using copilot"))
}
}
fn as_running(&mut self) -> Result<&mut RunningCopilotServer> {
match self {
CopilotServer::Starting { .. } => Err(anyhow!("copilot is still starting")),
CopilotServer::Disabled => Err(anyhow!("copilot is disabled")),
CopilotServer::Error(error) => Err(anyhow!(
"copilot was not started because of an error: {}",
error
)),
CopilotServer::Running(server) => Ok(server),
}
}
}
struct RunningCopilotServer {
name: LanguageServerName,
lsp: Arc<LanguageServer>,
sign_in_status: SignInStatus,
registered_buffers: HashMap<EntityId, RegisteredBuffer>,
}
#[derive(Clone, Debug)]
enum SignInStatus {
Authorized,
Unauthorized,
SigningIn {
prompt: Option<request::PromptUserDeviceFlow>,
task: Shared<Task<Result<(), Arc<anyhow::Error>>>>,
},
SignedOut,
}
#[derive(Debug, Clone)]
pub enum Status {
Starting {
task: Shared<Task<()>>,
},
Error(Arc<str>),
Disabled,
SignedOut,
SigningIn {
prompt: Option<request::PromptUserDeviceFlow>,
},
Unauthorized,
Authorized,
}
impl Status {
pub fn is_authorized(&self) -> bool {
matches!(self, Status::Authorized)
}
}
struct RegisteredBuffer {
uri: lsp::Url,
language_id: String,
snapshot: BufferSnapshot,
snapshot_version: i32,
_subscriptions: [gpui::Subscription; 2],
pending_buffer_change: Task<Option<()>>,
}
impl RegisteredBuffer {
fn report_changes(
&mut self,
buffer: &Model<Buffer>,
cx: &mut ModelContext<Copilot>,
) -> oneshot::Receiver<(i32, BufferSnapshot)> {
let (done_tx, done_rx) = oneshot::channel();
if buffer.read(cx).version() == self.snapshot.version {
let _ = done_tx.send((self.snapshot_version, self.snapshot.clone()));
} else {
let buffer = buffer.downgrade();
let id = buffer.entity_id();
let prev_pending_change =
mem::replace(&mut self.pending_buffer_change, Task::ready(None));
self.pending_buffer_change = cx.spawn(move |copilot, mut cx| async move {
prev_pending_change.await;
let old_version = copilot
.update(&mut cx, |copilot, _| {
let server = copilot.server.as_authenticated().log_err()?;
let buffer = server.registered_buffers.get_mut(&id)?;
Some(buffer.snapshot.version.clone())
})
.ok()??;
let new_snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot()).ok()?;
let content_changes = cx
.background_executor()
.spawn({
let new_snapshot = new_snapshot.clone();
async move {
new_snapshot
.edits_since::<(PointUtf16, usize)>(&old_version)
.map(|edit| {
let edit_start = edit.new.start.0;
let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
let new_text = new_snapshot
.text_for_range(edit.new.start.1..edit.new.end.1)
.collect();
lsp::TextDocumentContentChangeEvent {
range: Some(lsp::Range::new(
point_to_lsp(edit_start),
point_to_lsp(edit_end),
)),
range_length: None,
text: new_text,
}
})
.collect::<Vec<_>>()
}
})
.await;
copilot
.update(&mut cx, |copilot, _| {
let server = copilot.server.as_authenticated().log_err()?;
let buffer = server.registered_buffers.get_mut(&id)?;
if !content_changes.is_empty() {
buffer.snapshot_version += 1;
buffer.snapshot = new_snapshot;
server
.lsp
.notify::<lsp::notification::DidChangeTextDocument>(
lsp::DidChangeTextDocumentParams {
text_document: lsp::VersionedTextDocumentIdentifier::new(
buffer.uri.clone(),
buffer.snapshot_version,
),
content_changes,
},
)
.log_err();
}
let _ = done_tx.send((buffer.snapshot_version, buffer.snapshot.clone()));
Some(())
})
.ok()?;
Some(())
});
}
done_rx
}
}
#[derive(Debug)]
pub struct Completion {
pub uuid: String,
pub range: Range<Anchor>,
pub text: String,
}
pub struct Copilot {
http: Arc<dyn HttpClient>,
node_runtime: Arc<dyn NodeRuntime>,
server: CopilotServer,
buffers: HashSet<WeakModel<Buffer>>,
server_id: LanguageServerId,
_subscription: gpui::Subscription,
}
pub enum Event {
CopilotLanguageServerStarted,
}
impl EventEmitter<Event> for Copilot {}
struct GlobalCopilot(Model<Copilot>);
impl Global for GlobalCopilot {}
impl Copilot {
pub fn global(cx: &AppContext) -> Option<Model<Self>> {
cx.try_global::<GlobalCopilot>()
.map(|model| model.0.clone())
}
pub fn set_global(copilot: Model<Self>, cx: &mut AppContext) {
cx.set_global(GlobalCopilot(copilot));
}
fn start(
new_server_id: LanguageServerId,
http: Arc<dyn HttpClient>,
node_runtime: Arc<dyn NodeRuntime>,
cx: &mut ModelContext<Self>,
) -> Self {
let mut this = Self {
server_id: new_server_id,
http,
node_runtime,
server: CopilotServer::Disabled,
buffers: Default::default(),
_subscription: cx.on_app_quit(Self::shutdown_language_server),
};
this.enable_or_disable_copilot(cx);
cx.observe_global::<SettingsStore>(move |this, cx| this.enable_or_disable_copilot(cx))
.detach();
this
}
fn shutdown_language_server(
&mut self,
_cx: &mut ModelContext<Self>,
) -> impl Future<Output = ()> {
let shutdown = match mem::replace(&mut self.server, CopilotServer::Disabled) {
CopilotServer::Running(server) => Some(Box::pin(async move { server.lsp.shutdown() })),
_ => None,
};
async move {
if let Some(shutdown) = shutdown {
shutdown.await;
}
}
}
fn enable_or_disable_copilot(&mut self, cx: &mut ModelContext<Self>) {
let server_id = self.server_id;
let http = self.http.clone();
let node_runtime = self.node_runtime.clone();
if all_language_settings(None, cx).copilot_enabled(None, None) {
if matches!(self.server, CopilotServer::Disabled) {
let start_task = cx
.spawn(move |this, cx| {
Self::start_language_server(server_id, http, node_runtime, this, cx)
})
.shared();
self.server = CopilotServer::Starting { task: start_task };
cx.notify();
}
} else {
self.server = CopilotServer::Disabled;
cx.notify();
}
}
#[cfg(any(test, feature = "test-support"))]
pub fn fake(cx: &mut gpui::TestAppContext) -> (Model<Self>, lsp::FakeLanguageServer) {
use lsp::FakeLanguageServer;
use node_runtime::FakeNodeRuntime;
let (server, fake_server) =
FakeLanguageServer::new("copilot".into(), Default::default(), cx.to_async());
let http = util::http::FakeHttpClient::create(|_| async { unreachable!() });
let node_runtime = FakeNodeRuntime::new();
let this = cx.new_model(|cx| Self {
server_id: LanguageServerId(0),
http: http.clone(),
node_runtime,
server: CopilotServer::Running(RunningCopilotServer {
name: LanguageServerName(Arc::from("copilot")),
lsp: Arc::new(server),
sign_in_status: SignInStatus::Authorized,
registered_buffers: Default::default(),
}),
_subscription: cx.on_app_quit(Self::shutdown_language_server),
buffers: Default::default(),
});
(this, fake_server)
}
fn start_language_server(
new_server_id: LanguageServerId,
http: Arc<dyn HttpClient>,
node_runtime: Arc<dyn NodeRuntime>,
this: WeakModel<Self>,
mut cx: AsyncAppContext,
) -> impl Future<Output = ()> {
async move {
let start_language_server = async {
let server_path = get_copilot_lsp(http).await?;
let node_path = node_runtime.binary_path().await?;
let arguments: Vec<OsString> = vec![server_path.into(), "--stdio".into()];
let binary = LanguageServerBinary {
path: node_path,
arguments,
};
let server = LanguageServer::new(
Arc::new(Mutex::new(None)),
new_server_id,
binary,
Path::new("/"),
None,
cx.clone(),
)?;
server
.on_notification::<StatusNotification, _>(
|_, _| { /* Silence the notification */ },
)
.detach();
let server = cx.update(|cx| server.initialize(None, cx))?.await?;
let status = server
.request::<request::CheckStatus>(request::CheckStatusParams {
local_checks_only: false,
})
.await?;
server
.request::<request::SetEditorInfo>(request::SetEditorInfoParams {
editor_info: request::EditorInfo {
name: "zed".into(),
version: env!("CARGO_PKG_VERSION").into(),
},
editor_plugin_info: request::EditorPluginInfo {
name: "zed-copilot".into(),
version: "0.0.1".into(),
},
})
.await?;
anyhow::Ok((server, status))
};
let server = start_language_server.await;
this.update(&mut cx, |this, cx| {
cx.notify();
match server {
Ok((server, status)) => {
this.server = CopilotServer::Running(RunningCopilotServer {
name: LanguageServerName(Arc::from("copilot")),
lsp: server,
sign_in_status: SignInStatus::SignedOut,
registered_buffers: Default::default(),
});
cx.emit(Event::CopilotLanguageServerStarted);
this.update_sign_in_status(status, cx);
}
Err(error) => {
this.server = CopilotServer::Error(error.to_string().into());
cx.notify()
}
}
})
.ok();
}
}
pub fn sign_in(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
if let CopilotServer::Running(server) = &mut self.server {
let task = match &server.sign_in_status {
SignInStatus::Authorized { .. } => Task::ready(Ok(())).shared(),
SignInStatus::SigningIn { task, .. } => {
cx.notify();
task.clone()
}
SignInStatus::SignedOut | SignInStatus::Unauthorized { .. } => {
let lsp = server.lsp.clone();
let task = cx
.spawn(|this, mut cx| async move {
let sign_in = async {
let sign_in = lsp
.request::<request::SignInInitiate>(
request::SignInInitiateParams {},
)
.await?;
match sign_in {
request::SignInInitiateResult::AlreadySignedIn { user } => {
Ok(request::SignInStatus::Ok { user })
}
request::SignInInitiateResult::PromptUserDeviceFlow(flow) => {
this.update(&mut cx, |this, cx| {
if let CopilotServer::Running(RunningCopilotServer {
sign_in_status: status,
..
}) = &mut this.server
{
if let SignInStatus::SigningIn {
prompt: prompt_flow,
..
} = status
{
*prompt_flow = Some(flow.clone());
cx.notify();
}
}
})?;
let response = lsp
.request::<request::SignInConfirm>(
request::SignInConfirmParams {
user_code: flow.user_code,
},
)
.await?;
Ok(response)
}
}
};
let sign_in = sign_in.await;
this.update(&mut cx, |this, cx| match sign_in {
Ok(status) => {
this.update_sign_in_status(status, cx);
Ok(())
}
Err(error) => {
this.update_sign_in_status(
request::SignInStatus::NotSignedIn,
cx,
);
Err(Arc::new(error))
}
})?
})
.shared();
server.sign_in_status = SignInStatus::SigningIn {
prompt: None,
task: task.clone(),
};
cx.notify();
task
}
};
cx.background_executor()
.spawn(task.map_err(|err| anyhow!("{:?}", err)))
} else {
// If we're downloading, wait until download is finished
// If we're in a stuck state, display to the user
Task::ready(Err(anyhow!("copilot hasn't started yet")))
}
}
fn sign_out(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
self.update_sign_in_status(request::SignInStatus::NotSignedIn, cx);
if let CopilotServer::Running(RunningCopilotServer { lsp: server, .. }) = &self.server {
let server = server.clone();
cx.background_executor().spawn(async move {
server
.request::<request::SignOut>(request::SignOutParams {})
.await?;
anyhow::Ok(())
})
} else {
Task::ready(Err(anyhow!("copilot hasn't started yet")))
}
}
pub fn reinstall(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
let start_task = cx
.spawn({
let http = self.http.clone();
let node_runtime = self.node_runtime.clone();
let server_id = self.server_id;
move |this, cx| async move {
clear_copilot_dir().await;
Self::start_language_server(server_id, http, node_runtime, this, cx).await
}
})
.shared();
self.server = CopilotServer::Starting {
task: start_task.clone(),
};
cx.notify();
cx.background_executor().spawn(start_task)
}
pub fn language_server(&self) -> Option<(&LanguageServerName, &Arc<LanguageServer>)> {
if let CopilotServer::Running(server) = &self.server {
Some((&server.name, &server.lsp))
} else {
None
}
}
pub fn register_buffer(&mut self, buffer: &Model<Buffer>, cx: &mut ModelContext<Self>) {
let weak_buffer = buffer.downgrade();
self.buffers.insert(weak_buffer.clone());
if let CopilotServer::Running(RunningCopilotServer {
lsp: server,
sign_in_status: status,
registered_buffers,
..
}) = &mut self.server
{
if !matches!(status, SignInStatus::Authorized { .. }) {
return;
}
registered_buffers
.entry(buffer.entity_id())
.or_insert_with(|| {
let uri: lsp::Url = uri_for_buffer(buffer, cx);
let language_id = id_for_language(buffer.read(cx).language());
let snapshot = buffer.read(cx).snapshot();
server
.notify::<lsp::notification::DidOpenTextDocument>(
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem {
uri: uri.clone(),
language_id: language_id.clone(),
version: 0,
text: snapshot.text(),
},
},
)
.log_err();
RegisteredBuffer {
uri,
language_id,
snapshot,
snapshot_version: 0,
pending_buffer_change: Task::ready(Some(())),
_subscriptions: [
cx.subscribe(buffer, |this, buffer, event, cx| {
this.handle_buffer_event(buffer, event, cx).log_err();
}),
cx.observe_release(buffer, move |this, _buffer, _cx| {
this.buffers.remove(&weak_buffer);
this.unregister_buffer(&weak_buffer);
}),
],
}
});
}
}
fn handle_buffer_event(
&mut self,
buffer: Model<Buffer>,
event: &language::Event,
cx: &mut ModelContext<Self>,
) -> Result<()> {
if let Ok(server) = self.server.as_running() {
if let Some(registered_buffer) = server.registered_buffers.get_mut(&buffer.entity_id())
{
match event {
language::Event::Edited => {
let _ = registered_buffer.report_changes(&buffer, cx);
}
language::Event::Saved => {
server
.lsp
.notify::<lsp::notification::DidSaveTextDocument>(
lsp::DidSaveTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(
registered_buffer.uri.clone(),
),
text: None,
},
)?;
}
language::Event::FileHandleChanged | language::Event::LanguageChanged => {
let new_language_id = id_for_language(buffer.read(cx).language());
let new_uri = uri_for_buffer(&buffer, cx);
if new_uri != registered_buffer.uri
|| new_language_id != registered_buffer.language_id
{
let old_uri = mem::replace(&mut registered_buffer.uri, new_uri);
registered_buffer.language_id = new_language_id;
server
.lsp
.notify::<lsp::notification::DidCloseTextDocument>(
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(old_uri),
},
)?;
server
.lsp
.notify::<lsp::notification::DidOpenTextDocument>(
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
registered_buffer.uri.clone(),
registered_buffer.language_id.clone(),
registered_buffer.snapshot_version,
registered_buffer.snapshot.text(),
),
},
)?;
}
}
_ => {}
}
}
}
Ok(())
}
fn unregister_buffer(&mut self, buffer: &WeakModel<Buffer>) {
if let Ok(server) = self.server.as_running() {
if let Some(buffer) = server.registered_buffers.remove(&buffer.entity_id()) {
server
.lsp
.notify::<lsp::notification::DidCloseTextDocument>(
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(buffer.uri),
},
)
.log_err();
}
}
}
pub fn completions<T>(
&mut self,
buffer: &Model<Buffer>,
position: T,
cx: &mut ModelContext<Self>,
) -> Task<Result<Vec<Completion>>>
where
T: ToPointUtf16,
{
self.request_completions::<request::GetCompletions, _>(buffer, position, cx)
}
pub fn completions_cycling<T>(
&mut self,
buffer: &Model<Buffer>,
position: T,
cx: &mut ModelContext<Self>,
) -> Task<Result<Vec<Completion>>>
where
T: ToPointUtf16,
{
self.request_completions::<request::GetCompletionsCycling, _>(buffer, position, cx)
}
pub fn accept_completion(
&mut self,
completion: &Completion,
cx: &mut ModelContext<Self>,
) -> Task<Result<()>> {
let server = match self.server.as_authenticated() {
Ok(server) => server,
Err(error) => return Task::ready(Err(error)),
};
let request =
server
.lsp
.request::<request::NotifyAccepted>(request::NotifyAcceptedParams {
uuid: completion.uuid.clone(),
});
cx.background_executor().spawn(async move {
request.await?;
Ok(())
})
}
pub fn discard_completions(
&mut self,
completions: &[Completion],
cx: &mut ModelContext<Self>,
) -> Task<Result<()>> {
let server = match self.server.as_authenticated() {
Ok(server) => server,
Err(error) => return Task::ready(Err(error)),
};
let request =
server
.lsp
.request::<request::NotifyRejected>(request::NotifyRejectedParams {
uuids: completions
.iter()
.map(|completion| completion.uuid.clone())
.collect(),
});
cx.background_executor().spawn(async move {
request.await?;
Ok(())
})
}
fn request_completions<R, T>(
&mut self,
buffer: &Model<Buffer>,
position: T,
cx: &mut ModelContext<Self>,
) -> Task<Result<Vec<Completion>>>
where
R: 'static
+ lsp::request::Request<
Params = request::GetCompletionsParams,
Result = request::GetCompletionsResult,
>,
T: ToPointUtf16,
{
self.register_buffer(buffer, cx);
let server = match self.server.as_authenticated() {
Ok(server) => server,
Err(error) => return Task::ready(Err(error)),
};
let lsp = server.lsp.clone();
let registered_buffer = server
.registered_buffers
.get_mut(&buffer.entity_id())
.unwrap();
let snapshot = registered_buffer.report_changes(buffer, cx);
let buffer = buffer.read(cx);
let uri = registered_buffer.uri.clone();
let position = position.to_point_utf16(buffer);
let settings = language_settings(buffer.language_at(position).as_ref(), buffer.file(), cx);
let tab_size = settings.tab_size;
let hard_tabs = settings.hard_tabs;
let relative_path = buffer
.file()
.map(|file| file.path().to_path_buf())
.unwrap_or_default();
cx.background_executor().spawn(async move {
let (version, snapshot) = snapshot.await?;
let result = lsp
.request::<R>(request::GetCompletionsParams {
doc: request::GetCompletionsDocument {
uri,
tab_size: tab_size.into(),
indent_size: 1,
insert_spaces: !hard_tabs,
relative_path: relative_path.to_string_lossy().into(),
position: point_to_lsp(position),
version: version.try_into().unwrap(),
},
})
.await?;
let completions = result
.completions
.into_iter()
.map(|completion| {
let start = snapshot
.clip_point_utf16(point_from_lsp(completion.range.start), Bias::Left);
let end =
snapshot.clip_point_utf16(point_from_lsp(completion.range.end), Bias::Left);
Completion {
uuid: completion.uuid,
range: snapshot.anchor_before(start)..snapshot.anchor_after(end),
text: completion.text,
}
})
.collect();
anyhow::Ok(completions)
})
}
pub fn status(&self) -> Status {
match &self.server {
CopilotServer::Starting { task } => Status::Starting { task: task.clone() },
CopilotServer::Disabled => Status::Disabled,
CopilotServer::Error(error) => Status::Error(error.clone()),
CopilotServer::Running(RunningCopilotServer { sign_in_status, .. }) => {
match sign_in_status {
SignInStatus::Authorized { .. } => Status::Authorized,
SignInStatus::Unauthorized { .. } => Status::Unauthorized,
SignInStatus::SigningIn { prompt, .. } => Status::SigningIn {
prompt: prompt.clone(),
},
SignInStatus::SignedOut => Status::SignedOut,
}
}
}
}
fn update_sign_in_status(
&mut self,
lsp_status: request::SignInStatus,
cx: &mut ModelContext<Self>,
) {
self.buffers.retain(|buffer| buffer.is_upgradable());
if let Ok(server) = self.server.as_running() {
match lsp_status {
request::SignInStatus::Ok { .. }
| request::SignInStatus::MaybeOk { .. }
| request::SignInStatus::AlreadySignedIn { .. } => {
server.sign_in_status = SignInStatus::Authorized;
for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
if let Some(buffer) = buffer.upgrade() {
self.register_buffer(&buffer, cx);
}
}
}
request::SignInStatus::NotAuthorized { .. } => {
server.sign_in_status = SignInStatus::Unauthorized;
for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
self.unregister_buffer(&buffer);
}
}
request::SignInStatus::NotSignedIn => {
server.sign_in_status = SignInStatus::SignedOut;
for buffer in self.buffers.iter().cloned().collect::<Vec<_>>() {
self.unregister_buffer(&buffer);
}
}
}
cx.notify();
}
}
}
fn id_for_language(language: Option<&Arc<Language>>) -> String {
let language_name = language.map(|language| language.name());
match language_name.as_deref() {
Some("Plain Text") => "plaintext".to_string(),
Some(language_name) => language_name.to_lowercase(),
None => "plaintext".to_string(),
}
}
fn uri_for_buffer(buffer: &Model<Buffer>, cx: &AppContext) -> lsp::Url {
if let Some(file) = buffer.read(cx).file().and_then(|file| file.as_local()) {
lsp::Url::from_file_path(file.abs_path(cx)).unwrap()
} else {
format!("buffer://{}", buffer.entity_id()).parse().unwrap()
}
}
async fn clear_copilot_dir() {
remove_matching(&paths::COPILOT_DIR, |_| true).await
}
async fn get_copilot_lsp(http: Arc<dyn HttpClient>) -> anyhow::Result<PathBuf> {
const SERVER_PATH: &'static str = "dist/agent.js";
///Check for the latest copilot language server and download it if we haven't already
async fn fetch_latest(http: Arc<dyn HttpClient>) -> anyhow::Result<PathBuf> {
let release =
latest_github_release("zed-industries/copilot", true, false, http.clone()).await?;
let version_dir = &*paths::COPILOT_DIR.join(format!("copilot-{}", release.name));
fs::create_dir_all(version_dir).await?;
let server_path = version_dir.join(SERVER_PATH);
if fs::metadata(&server_path).await.is_err() {
// Copilot LSP looks for this dist dir specifically, so lets add it in.
let dist_dir = version_dir.join("dist");
fs::create_dir_all(dist_dir.as_path()).await?;
let url = &release
.assets
.get(0)
.context("Github release for copilot contained no assets")?
.browser_download_url;
let mut response = http
.get(url, Default::default(), true)
.await
.context("error downloading copilot release")?;
let decompressed_bytes = GzipDecoder::new(BufReader::new(response.body_mut()));
let archive = Archive::new(decompressed_bytes);
archive.unpack(dist_dir).await?;
remove_matching(&paths::COPILOT_DIR, |entry| entry != version_dir).await;
}
Ok(server_path)
}
match fetch_latest(http).await {
ok @ Result::Ok(..) => ok,
e @ Err(..) => {
e.log_err();
// Fetch a cached binary, if it exists
async_maybe!({
let mut last_version_dir = None;
let mut entries = fs::read_dir(paths::COPILOT_DIR.as_path()).await?;
while let Some(entry) = entries.next().await {
let entry = entry?;
if entry.file_type().await?.is_dir() {
last_version_dir = Some(entry.path());
}
}
let last_version_dir =
last_version_dir.ok_or_else(|| anyhow!("no cached binary"))?;
let server_path = last_version_dir.join(SERVER_PATH);
if server_path.exists() {
Ok(server_path)
} else {
Err(anyhow!(
"missing executable in directory {:?}",
last_version_dir
))
}
})
.await
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use gpui::TestAppContext;
use language::BufferId;
#[gpui::test(iterations = 10)]
async fn test_buffer_management(cx: &mut TestAppContext) {
let (copilot, mut lsp) = Copilot::fake(cx);
let buffer_1 = cx.new_model(|cx| {
Buffer::new(0, BufferId::new(cx.entity_id().as_u64()).unwrap(), "Hello")
});
let buffer_1_uri: lsp::Url = format!("buffer://{}", buffer_1.entity_id().as_u64())
.parse()
.unwrap();
copilot.update(cx, |copilot, cx| copilot.register_buffer(&buffer_1, cx));
assert_eq!(
lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
.await,
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
buffer_1_uri.clone(),
"plaintext".into(),
0,
"Hello".into()
),
}
);
let buffer_2 = cx.new_model(|cx| {
Buffer::new(
0,
BufferId::new(cx.entity_id().as_u64()).unwrap(),
"Goodbye",
)
});
let buffer_2_uri: lsp::Url = format!("buffer://{}", buffer_2.entity_id().as_u64())
.parse()
.unwrap();
copilot.update(cx, |copilot, cx| copilot.register_buffer(&buffer_2, cx));
assert_eq!(
lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
.await,
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
buffer_2_uri.clone(),
"plaintext".into(),
0,
"Goodbye".into()
),
}
);
buffer_1.update(cx, |buffer, cx| buffer.edit([(5..5, " world")], None, cx));
assert_eq!(
lsp.receive_notification::<lsp::notification::DidChangeTextDocument>()
.await,
lsp::DidChangeTextDocumentParams {
text_document: lsp::VersionedTextDocumentIdentifier::new(buffer_1_uri.clone(), 1),
content_changes: vec![lsp::TextDocumentContentChangeEvent {
range: Some(lsp::Range::new(
lsp::Position::new(0, 5),
lsp::Position::new(0, 5)
)),
range_length: None,
text: " world".into(),
}],
}
);
// Ensure updates to the file are reflected in the LSP.
buffer_1.update(cx, |buffer, cx| {
buffer.file_updated(
Arc::new(File {
abs_path: "/root/child/buffer-1".into(),
path: Path::new("child/buffer-1").into(),
}),
cx,
)
});
assert_eq!(
lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
.await,
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(buffer_1_uri),
}
);
let buffer_1_uri = lsp::Url::from_file_path("/root/child/buffer-1").unwrap();
assert_eq!(
lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
.await,
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
buffer_1_uri.clone(),
"plaintext".into(),
1,
"Hello world".into()
),
}
);
// Ensure all previously-registered buffers are closed when signing out.
lsp.handle_request::<request::SignOut, _, _>(|_, _| async {
Ok(request::SignOutResult {})
});
copilot
.update(cx, |copilot, cx| copilot.sign_out(cx))
.await
.unwrap();
assert_eq!(
lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
.await,
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(buffer_1_uri.clone()),
}
);
assert_eq!(
lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
.await,
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(buffer_2_uri.clone()),
}
);
// Ensure all previously-registered buffers are re-opened when signing in.
lsp.handle_request::<request::SignInInitiate, _, _>(|_, _| async {
Ok(request::SignInInitiateResult::AlreadySignedIn {
user: "user-1".into(),
})
});
copilot
.update(cx, |copilot, cx| copilot.sign_in(cx))
.await
.unwrap();
assert_eq!(
lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
.await,
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
buffer_1_uri.clone(),
"plaintext".into(),
0,
"Hello world".into()
),
}
);
assert_eq!(
lsp.receive_notification::<lsp::notification::DidOpenTextDocument>()
.await,
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
buffer_2_uri.clone(),
"plaintext".into(),
0,
"Goodbye".into()
),
}
);
// Dropping a buffer causes it to be closed on the LSP side as well.
cx.update(|_| drop(buffer_2));
assert_eq!(
lsp.receive_notification::<lsp::notification::DidCloseTextDocument>()
.await,
lsp::DidCloseTextDocumentParams {
text_document: lsp::TextDocumentIdentifier::new(buffer_2_uri),
}
);
}
struct File {
abs_path: PathBuf,
path: Arc<Path>,
}
impl language::File for File {
fn as_local(&self) -> Option<&dyn language::LocalFile> {
Some(self)
}
fn mtime(&self) -> std::time::SystemTime {
unimplemented!()
}
fn path(&self) -> &Arc<Path> {
&self.path
}
fn full_path(&self, _: &AppContext) -> PathBuf {
unimplemented!()
}
fn file_name<'a>(&'a self, _: &'a AppContext) -> &'a std::ffi::OsStr {
unimplemented!()
}
fn is_deleted(&self) -> bool {
unimplemented!()
}
fn as_any(&self) -> &dyn std::any::Any {
unimplemented!()
}
fn to_proto(&self) -> rpc::proto::File {
unimplemented!()
}
fn worktree_id(&self) -> usize {
0
}
fn is_private(&self) -> bool {
false
}
}
impl language::LocalFile for File {
fn abs_path(&self, _: &AppContext) -> PathBuf {
self.abs_path.clone()
}
fn load(&self, _: &AppContext) -> Task<Result<String>> {
unimplemented!()
}
fn buffer_reloaded(
&self,
_: BufferId,
_: &clock::Global,
_: language::RopeFingerprint,
_: language::LineEnding,
_: std::time::SystemTime,
_: &mut AppContext,
) {
unimplemented!()
}
}
}