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authorFilipe Azevedo2022-09-20 07:44:36 +0000
committerGitHub2022-09-20 07:44:36 +0000
commit385ccdfc9c4f04cbe33c7cfdd668a1f694b6d870 (patch)
tree9a0b6ed9c9ae0c7406ce16f38207c5ac3ca4aab1 /helix-lsp/src
parentaa00a470f31514b792e219513ffb3806a5e5b53e (diff)
add :lsp-restart command (#3435)
Diffstat (limited to 'helix-lsp/src')
-rw-r--r--helix-lsp/src/lib.rs118
1 files changed, 81 insertions, 37 deletions
diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs
index 8d43410a..cb234357 100644
--- a/helix-lsp/src/lib.rs
+++ b/helix-lsp/src/lib.rs
@@ -9,7 +9,8 @@ pub use lsp::{Position, Url};
pub use lsp_types as lsp;
use futures_util::stream::select_all::SelectAll;
-use helix_core::syntax::LanguageConfiguration;
+use helix_core::syntax::{LanguageConfiguration, LanguageServerConfiguration};
+use tokio::sync::mpsc::UnboundedReceiver;
use std::{
collections::{hash_map::Entry, HashMap},
@@ -335,6 +336,33 @@ impl Registry {
.map(|(_, client)| client.as_ref())
}
+ pub fn restart(
+ &mut self,
+ language_config: &LanguageConfiguration,
+ ) -> Result<Option<Arc<Client>>> {
+ let config = match &language_config.language_server {
+ Some(config) => config,
+ None => return Ok(None),
+ };
+
+ let scope = language_config.scope.clone();
+
+ match self.inner.entry(scope) {
+ Entry::Vacant(_) => Ok(None),
+ Entry::Occupied(mut entry) => {
+ // initialize a new client
+ let id = self.counter.fetch_add(1, Ordering::Relaxed);
+
+ let NewClientResult(client, incoming) = start_client(id, language_config, config)?;
+ self.incoming.push(UnboundedReceiverStream::new(incoming));
+
+ entry.insert((id, client.clone()));
+
+ Ok(Some(client))
+ }
+ }
+ }
+
pub fn get(&mut self, language_config: &LanguageConfiguration) -> Result<Option<Arc<Client>>> {
let config = match &language_config.language_server {
Some(config) => config,
@@ -346,43 +374,9 @@ impl Registry {
Entry::Vacant(entry) => {
// initialize a new client
let id = self.counter.fetch_add(1, Ordering::Relaxed);
- let (client, incoming, initialize_notify) = Client::start(
- &config.command,
- &config.args,
- language_config.config.clone(),
- &language_config.roots,
- id,
- config.timeout,
- )?;
+
+ let NewClientResult(client, incoming) = start_client(id, language_config, config)?;
self.incoming.push(UnboundedReceiverStream::new(incoming));
- let client = Arc::new(client);
-
- // Initialize the client asynchronously
- let _client = client.clone();
- tokio::spawn(async move {
- use futures_util::TryFutureExt;
- let value = _client
- .capabilities
- .get_or_try_init(|| {
- _client
- .initialize()
- .map_ok(|response| response.capabilities)
- })
- .await;
-
- if let Err(e) = value {
- log::error!("failed to initialize language server: {}", e);
- return;
- }
-
- // next up, notify<initialized>
- _client
- .notify::<lsp::notification::Initialized>(lsp::InitializedParams {})
- .await
- .unwrap();
-
- initialize_notify.notify_one();
- });
entry.insert((id, client.clone()));
Ok(Some(client))
@@ -473,6 +467,56 @@ impl LspProgressMap {
}
}
+struct NewClientResult(Arc<Client>, UnboundedReceiver<(usize, Call)>);
+
+/// start_client takes both a LanguageConfiguration and a LanguageServerConfiguration to ensure that
+/// it is only called when it makes sense.
+fn start_client(
+ id: usize,
+ config: &LanguageConfiguration,
+ ls_config: &LanguageServerConfiguration,
+) -> Result<NewClientResult> {
+ let (client, incoming, initialize_notify) = Client::start(
+ &ls_config.command,
+ &ls_config.args,
+ config.config.clone(),
+ &config.roots,
+ id,
+ ls_config.timeout,
+ )?;
+
+ let client = Arc::new(client);
+
+ // Initialize the client asynchronously
+ let _client = client.clone();
+ tokio::spawn(async move {
+ use futures_util::TryFutureExt;
+ let value = _client
+ .capabilities
+ .get_or_try_init(|| {
+ _client
+ .initialize()
+ .map_ok(|response| response.capabilities)
+ })
+ .await;
+
+ if let Err(e) = value {
+ log::error!("failed to initialize language server: {}", e);
+ return;
+ }
+
+ // next up, notify<initialized>
+ _client
+ .notify::<lsp::notification::Initialized>(lsp::InitializedParams {})
+ .await
+ .unwrap();
+
+ initialize_notify.notify_one();
+ });
+
+ Ok(NewClientResult(client, incoming))
+}
+
#[cfg(test)]
mod tests {
use super::{lsp, util::*, OffsetEncoding};