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Refactor language server startup

Browse source 
Avoid parallel vecs

Co-Authored-By: Max Brunsfeld <max@zed.dev>
This commit is contained in:
Julia 2023-04-19 16:30:24 -04:00 committed by Max Brunsfeld
parent c59204c5e6
commit 9e2949e7ba
2 changed files with 325 additions and 333 deletions
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99
crates/language/src/language.rs
View file

@ -782,13 +782,14 @@ impl LanguageRegistry {
self.state.read().languages.iter().cloned().collect()
}
pub fn start_language_servers(
pub fn start_language_server(
self: &Arc<Self>,
language: Arc<Language>,
adapter: Arc<CachedLspAdapter>,
root_path: Arc<Path>,
http_client: Arc<dyn HttpClient>,
cx: &mut AppContext,
) -> Vec<PendingLanguageServer> {
) -> Option<PendingLanguageServer> {
#[cfg(any(test, feature = "test-support"))]
if language.fake_adapter.is_some() {
let task = cx.spawn(|cx| async move {
@ -819,70 +820,60 @@ impl LanguageRegistry {
});
let server_id = post_inc(&mut self.state.write().next_language_server_id);
return vec![PendingLanguageServer { server_id, task }];
return Some(PendingLanguageServer { server_id, task });
}
let download_dir = self
.language_server_download_dir
.clone()
.ok_or_else(|| anyhow!("language server download directory has not been assigned"))
.log_err();
let download_dir = match download_dir {
Some(download_dir) => download_dir,
None => return Vec::new(),
};
.log_err()?;
let mut results = Vec::new();
let this = self.clone();
let language = language.clone();
let http_client = http_client.clone();
let download_dir = download_dir.clone();
let root_path = root_path.clone();
let adapter = adapter.clone();
let lsp_binary_statuses = self.lsp_binary_statuses_tx.clone();
let login_shell_env_loaded = self.login_shell_env_loaded.clone();
let server_id = post_inc(&mut self.state.write().next_language_server_id);
for adapter in &language.adapters {
let this = self.clone();
let language = language.clone();
let http_client = http_client.clone();
let download_dir = download_dir.clone();
let root_path = root_path.clone();
let adapter = adapter.clone();
let lsp_binary_statuses = self.lsp_binary_statuses_tx.clone();
let login_shell_env_loaded = self.login_shell_env_loaded.clone();
let server_id = post_inc(&mut self.state.write().next_language_server_id);
let task = cx.spawn(|cx| async move {
login_shell_env_loaded.await;
let task = cx.spawn(|cx| async move {
login_shell_env_loaded.await;
let mut lock = this.lsp_binary_paths.lock();
let entry = lock
.entry(adapter.name.clone())
.or_insert_with(|| {
get_binary(
adapter.clone(),
language.clone(),
http_client,
download_dir,
lsp_binary_statuses,
)
.map_err(Arc::new)
.boxed()
.shared()
})
.clone();
drop(lock);
let binary = entry.clone().map_err(|e| anyhow!(e)).await?;
let mut lock = this.lsp_binary_paths.lock();
let entry = lock
.entry(adapter.name.clone())
.or_insert_with(|| {
get_binary(
adapter.clone(),
language.clone(),
http_client,
download_dir,
lsp_binary_statuses,
)
.map_err(Arc::new)
.boxed()
.shared()
})
.clone();
drop(lock);
let binary = entry.clone().map_err(|e| anyhow!(e)).await?;
let server = lsp::LanguageServer::new(
server_id,
&binary.path,
&binary.arguments,
&root_path,
adapter.code_action_kinds(),
cx,
)?;
let server = lsp::LanguageServer::new(
server_id,
&binary.path,
&binary.arguments,
&root_path,
adapter.code_action_kinds(),
cx,
)?;
Ok(server)
});
Ok(server)
});
results.push(PendingLanguageServer { server_id, task });
}
results
Some(PendingLanguageServer { server_id, task })
}
pub fn language_server_binary_statuses(

559
crates/project/src/project.rs
View file

@ -2137,17 +2137,23 @@ impl Project {
return;
}
let adapters = language.lsp_adapters();
let language_servers = self.languages.start_language_servers(
language.clone(),
worktree_path.clone(),
self.client.http_client(),
cx,
);
debug_assert_eq!(adapters.len(), language_servers.len());
for (adapter, pending_server) in adapters.into_iter().zip(language_servers.into_iter()) {
for adapter in language.lsp_adapters() {
let key = (worktree_id, adapter.name.clone());
if self.language_server_ids.contains_key(&key) {
continue;
}
let pending_server = match self.languages.start_language_server(
language.clone(),
adapter.clone(),
worktree_path.clone(),
self.client.http_client(),
cx,
) {
Some(pending_server) => pending_server,
None => continue,
};
let lsp = &cx.global::<Settings>().lsp.get(&adapter.name.0);
let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
@ -2160,17 +2166,17 @@ impl Project {
_ => {}
}
if !self.language_server_ids.contains_key(&key) {
let adapter = self.setup_pending_language_server(
initialization_options,
pending_server,
adapter.clone(),
language.clone(),
key.clone(),
cx,
);
self.language_server_ids.insert(key.clone(), adapter);
}
let server_id = pending_server.server_id;
let state = self.setup_pending_language_server(
initialization_options,
pending_server,
adapter.clone(),
language.clone(),
key.clone(),
cx,
);
self.language_servers.insert(server_id, state);
self.language_server_ids.insert(key.clone(), server_id);
}
}
@ -2182,286 +2188,281 @@ impl Project {
language: Arc<Language>,
key: (WorktreeId, LanguageServerName),
cx: &mut ModelContext<Project>,
) -> usize {
) -> LanguageServerState {
let server_id = pending_server.server_id;
let languages = self.languages.clone();
self.language_servers.insert(
server_id,
LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
let language_server = pending_server.task.await.log_err()?;
let language_server = language_server
.initialize(initialization_options)
.await
.log_err()?;
let this = this.upgrade(&cx)?;
LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
let workspace_config = cx.update(|cx| languages.workspace_configuration(cx)).await;
let language_server = pending_server.task.await.log_err()?;
let language_server = language_server
.initialize(initialization_options)
.await
.log_err()?;
let this = this.upgrade(&cx)?;
language_server
.on_notification::<lsp::notification::PublishDiagnostics, _>({
let this = this.downgrade();
language_server
.on_notification::<lsp::notification::PublishDiagnostics, _>({
let this = this.downgrade();
let adapter = adapter.clone();
move |mut params, cx| {
let this = this;
let adapter = adapter.clone();
move |mut params, cx| {
let this = this;
let adapter = adapter.clone();
cx.spawn(|mut cx| async move {
adapter.process_diagnostics(&mut params).await;
if let Some(this) = this.upgrade(&cx) {
this.update(&mut cx, |this, cx| {
this.update_diagnostics(
server_id,
params,
&adapter.disk_based_diagnostic_sources,
cx,
)
.log_err();
});
}
})
.detach();
}
})
.detach();
language_server
.on_request::<lsp::request::WorkspaceConfiguration, _, _>({
let languages = languages.clone();
move |params, mut cx| {
let languages = languages.clone();
async move {
dbg!(&params.items);
let workspace_config =
cx.update(|cx| languages.workspace_configuration(cx)).await;
Ok(params
.items
.into_iter()
.map(|item| {
if let Some(section) = &item.section {
workspace_config
.get(section)
.cloned()
.unwrap_or(serde_json::Value::Null)
} else {
workspace_config.clone()
}
})
.collect())
}
}
})
.detach();
// Even though we don't have handling for these requests, respond to them to
// avoid stalling any language server like `gopls` which waits for a response
// to these requests when initializing.
language_server
.on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
let this = this.downgrade();
move |params, mut cx| async move {
if let Some(this) = this.upgrade(&cx) {
this.update(&mut cx, |this, _| {
if let Some(status) =
this.language_server_statuses.get_mut(&server_id)
{
if let lsp::NumberOrString::String(token) = params.token {
status.progress_tokens.insert(token);
}
}
});
}
Ok(())
}
})
.detach();
language_server
.on_request::<lsp::request::RegisterCapability, _, _>({
let this = this.downgrade();
move |params, mut cx| async move {
let this = this
.upgrade(&cx)
.ok_or_else(|| anyhow!("project dropped"))?;
for reg in params.registrations {
if reg.method == "workspace/didChangeWatchedFiles" {
if let Some(options) = reg.register_options {
let options = serde_json::from_value(options)?;
this.update(&mut cx, |this, cx| {
this.on_lsp_did_change_watched_files(
server_id, options, cx,
);
});
}
}
}
Ok(())
}
})
.detach();
language_server
.on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
let this = this.downgrade();
let adapter = adapter.clone();
let language_server = language_server.clone();
move |params, cx| {
Self::on_lsp_workspace_edit(
this,
params,
server_id,
adapter.clone(),
language_server.clone(),
cx,
)
}
})
.detach();
let disk_based_diagnostics_progress_token =
adapter.disk_based_diagnostics_progress_token.clone();
language_server
.on_notification::<lsp::notification::Progress, _>({
let this = this.downgrade();
move |params, mut cx| {
cx.spawn(|mut cx| async move {
adapter.process_diagnostics(&mut params).await;
if let Some(this) = this.upgrade(&cx) {
this.update(&mut cx, |this, cx| {
this.on_lsp_progress(
params,
this.update_diagnostics(
server_id,
disk_based_diagnostics_progress_token.clone(),
params,
&adapter.disk_based_diagnostic_sources,
cx,
);
)
.log_err();
});
}
})
.detach();
}
})
.detach();
language_server
.on_request::<lsp::request::WorkspaceConfiguration, _, _>({
let languages = languages.clone();
move |params, mut cx| {
let languages = languages.clone();
async move {
let workspace_config =
cx.update(|cx| languages.workspace_configuration(cx)).await;
Ok(params
.items
.into_iter()
.map(|item| {
if let Some(section) = &item.section {
workspace_config
.get(section)
.cloned()
.unwrap_or(serde_json::Value::Null)
} else {
workspace_config.clone()
}
})
.collect())
}
}
})
.detach();
// Even though we don't have handling for these requests, respond to them to
// avoid stalling any language server like `gopls` which waits for a response
// to these requests when initializing.
language_server
.on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
let this = this.downgrade();
move |params, mut cx| async move {
if let Some(this) = this.upgrade(&cx) {
this.update(&mut cx, |this, _| {
if let Some(status) =
this.language_server_statuses.get_mut(&server_id)
{
if let lsp::NumberOrString::String(token) = params.token {
status.progress_tokens.insert(token);
}
}
});
}
Ok(())
}
})
.detach();
language_server
.on_request::<lsp::request::RegisterCapability, _, _>({
let this = this.downgrade();
move |params, mut cx| async move {
let this = this
.upgrade(&cx)
.ok_or_else(|| anyhow!("project dropped"))?;
for reg in params.registrations {
if reg.method == "workspace/didChangeWatchedFiles" {
if let Some(options) = reg.register_options {
let options = serde_json::from_value(options)?;
this.update(&mut cx, |this, cx| {
this.on_lsp_did_change_watched_files(
server_id, options, cx,
);
});
}
}
}
})
.detach();
language_server
.notify::<lsp::notification::DidChangeConfiguration>(
lsp::DidChangeConfigurationParams {
settings: workspace_config,
},
)
.ok();
this.update(&mut cx, |this, cx| {
// If the language server for this key doesn't match the server id, don't store the
// server. Which will cause it to be dropped, killing the process
if this
.language_server_ids
.get(&key)
.map(|id| id != &server_id)
.unwrap_or(false)
{
return None;
Ok(())
}
})
.detach();
// Update language_servers collection with Running variant of LanguageServerState
// indicating that the server is up and running and ready
this.language_servers.insert(
server_id,
LanguageServerState::Running {
adapter: adapter.clone(),
language: language.clone(),
watched_paths: Default::default(),
server: language_server.clone(),
simulate_disk_based_diagnostics_completion: None,
},
);
this.language_server_statuses.insert(
server_id,
LanguageServerStatus {
name: language_server.name().to_string(),
pending_work: Default::default(),
has_pending_diagnostic_updates: false,
progress_tokens: Default::default(),
},
);
if let Some(project_id) = this.remote_id() {
this.client
.send(proto::StartLanguageServer {
project_id,
server: Some(proto::LanguageServer {
id: server_id as u64,
name: language_server.name().to_string(),
}),
})
.log_err();
language_server
.on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
let this = this.downgrade();
let adapter = adapter.clone();
let language_server = language_server.clone();
move |params, cx| {
Self::on_lsp_workspace_edit(
this,
params,
server_id,
adapter.clone(),
language_server.clone(),
cx,
)
}
})
.detach();
// Tell the language server about every open buffer in the worktree that matches the language.
for buffer in this.opened_buffers.values() {
if let Some(buffer_handle) = buffer.upgrade(cx) {
let buffer = buffer_handle.read(cx);
let file = match File::from_dyn(buffer.file()) {
Some(file) => file,
None => continue,
};
let language = match buffer.language() {
Some(language) => language,
None => continue,
};
let disk_based_diagnostics_progress_token =
adapter.disk_based_diagnostics_progress_token.clone();
if file.worktree.read(cx).id() != key.0
|| !language.lsp_adapters().iter().any(|a| a.name == key.1)
{
continue;
}
let file = file.as_local()?;
let versions = this
.buffer_snapshots
.entry(buffer.remote_id())
.or_default()
.entry(server_id)
.or_insert_with(|| {
vec![LspBufferSnapshot {
version: 0,
snapshot: buffer.text_snapshot(),
}]
});
let snapshot = versions.last().unwrap();
let version = snapshot.version;
let initial_snapshot = &snapshot.snapshot;
let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
language_server
.notify::<lsp::notification::DidOpenTextDocument>(
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
uri,
adapter
.language_ids
.get(language.name().as_ref())
.cloned()
.unwrap_or_default(),
version,
initial_snapshot.text(),
),
},
)
.log_err()?;
buffer_handle.update(cx, |buffer, cx| {
buffer.set_completion_triggers(
language_server
.capabilities()
.completion_provider
.as_ref()
.and_then(|provider| provider.trigger_characters.clone())
.unwrap_or_default(),
language_server
.on_notification::<lsp::notification::Progress, _>({
let this = this.downgrade();
move |params, mut cx| {
if let Some(this) = this.upgrade(&cx) {
this.update(&mut cx, |this, cx| {
this.on_lsp_progress(
params,
server_id,
disk_based_diagnostics_progress_token.clone(),
cx,
)
);
});
}
}
cx.notify();
Some(language_server)
})
})),
);
server_id
.detach();
language_server
.notify::<lsp::notification::DidChangeConfiguration>(
lsp::DidChangeConfigurationParams {
settings: workspace_config,
},
)
.ok();
this.update(&mut cx, |this, cx| {
// If the language server for this key doesn't match the server id, don't store the
// server. Which will cause it to be dropped, killing the process
if this
.language_server_ids
.get(&key)
.map(|id| id != &server_id)
.unwrap_or(false)
{
return None;
}
// Update language_servers collection with Running variant of LanguageServerState
// indicating that the server is up and running and ready
this.language_servers.insert(
server_id,
LanguageServerState::Running {
adapter: adapter.clone(),
language: language.clone(),
watched_paths: Default::default(),
server: language_server.clone(),
simulate_disk_based_diagnostics_completion: None,
},
);
this.language_server_statuses.insert(
server_id,
LanguageServerStatus {
name: language_server.name().to_string(),
pending_work: Default::default(),
has_pending_diagnostic_updates: false,
progress_tokens: Default::default(),
},
);
if let Some(project_id) = this.remote_id() {
this.client
.send(proto::StartLanguageServer {
project_id,
server: Some(proto::LanguageServer {
id: server_id as u64,
name: language_server.name().to_string(),
}),
})
.log_err();
}
// Tell the language server about every open buffer in the worktree that matches the language.
for buffer in this.opened_buffers.values() {
if let Some(buffer_handle) = buffer.upgrade(cx) {
let buffer = buffer_handle.read(cx);
let file = match File::from_dyn(buffer.file()) {
Some(file) => file,
None => continue,
};
let language = match buffer.language() {
Some(language) => language,
None => continue,
};
if file.worktree.read(cx).id() != key.0
|| !language.lsp_adapters().iter().any(|a| a.name == key.1)
{
continue;
}
let file = file.as_local()?;
let versions = this
.buffer_snapshots
.entry(buffer.remote_id())
.or_default()
.entry(server_id)
.or_insert_with(|| {
vec![LspBufferSnapshot {
version: 0,
snapshot: buffer.text_snapshot(),
}]
});
let snapshot = versions.last().unwrap();
let version = snapshot.version;
let initial_snapshot = &snapshot.snapshot;
let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
language_server
.notify::<lsp::notification::DidOpenTextDocument>(
lsp::DidOpenTextDocumentParams {
text_document: lsp::TextDocumentItem::new(
uri,
adapter
.language_ids
.get(language.name().as_ref())
.cloned()
.unwrap_or_default(),
version,
initial_snapshot.text(),
),
},
)
.log_err()?;
buffer_handle.update(cx, |buffer, cx| {
buffer.set_completion_triggers(
language_server
.capabilities()
.completion_provider
.as_ref()
.and_then(|provider| provider.trigger_characters.clone())
.unwrap_or_default(),
cx,
)
});
}
}
cx.notify();
Some(language_server)
})
}))
}
// Returns a list of all of the worktrees which no longer have a language server and the root path