Support workspace diagnostic refresh

helix-lsp/src/client.rs

@@ -571,6 +571,9 @@ impl Client {
                         did_rename: Some(true),
                         ..Default::default()
                     }),
+                    diagnostic: Some(lsp::DiagnosticWorkspaceClientCapabilities {
+                        refresh_support: Some(true),
+                    }),
                     ..Default::default()
                 }),
                 text_document: Some(lsp::TextDocumentClientCapabilities {

helix-lsp/src/lib.rs

@@ -10,6 +10,7 @@ pub use client::Client;
 pub use futures_executor::block_on;
 pub use helix_lsp_types as lsp;
 pub use jsonrpc::Call;
+use lsp::request::Request;
 pub use lsp::{Position, Url};
 
 use futures_util::stream::select_all::SelectAll;
@@ -569,7 +570,6 @@ pub enum MethodCall {
 
 impl MethodCall {
     pub fn parse(method: &str, params: jsonrpc::Params) -> Result<MethodCall> {
-        use lsp::request::Request;
         let request = match method {
             lsp::request::WorkDoneProgressCreate::METHOD => {
                 let params: lsp::WorkDoneProgressCreateParams = params.parse()?;
@@ -614,6 +614,7 @@ pub enum Notification {
     ShowMessage(lsp::ShowMessageParams),
     LogMessage(lsp::LogMessageParams),
     ProgressMessage(lsp::ProgressParams),
+    WorkspaceDiagnosticRefresh,
 }
 
 impl Notification {
@@ -640,6 +641,7 @@ impl Notification {
                 let params: lsp::ProgressParams = params.parse()?;
                 Self::ProgressMessage(params)
             }
+            lsp::request::WorkspaceDiagnosticRefresh::METHOD => Self::WorkspaceDiagnosticRefresh,
             _ => {
                 return Err(Error::Unhandled);
             }

helix-term/src/application.rs

@@ -703,6 +703,15 @@ impl Application {
                 };
 
                 match notification {
+                    Notification::WorkspaceDiagnosticRefresh => {
+                        for document in self.editor.documents() {
+                            let langugage_server = language_server!();
+                            handlers::diagnostics::pull_diagnostics_for_document(
+                                document,
+                                langugage_server,
+                            );
+                        }
+                    }
                     Notification::Initialized => {
                         let language_server = language_server!();
 

helix-term/src/handlers.rs

@@ -16,7 +16,7 @@ pub use helix_view::handlers::Handlers;
 
 mod auto_save;
 pub mod completion;
-mod diagnostics;
+pub mod diagnostics;
 mod signature_help;
 
 pub fn setup(config: Arc<ArcSwap<Config>>) -> Handlers {

helix-term/src/handlers/diagnostics.rs

@@ -114,7 +114,10 @@ impl helix_event::AsyncHook for PullDiagnosticsHandler {
     }
 }
 
-fn pull_diagnostics_for_document(doc: &helix_view::Document, language_server: &helix_lsp::Client) {
+pub fn pull_diagnostics_for_document(
+    doc: &helix_view::Document,
+    language_server: &helix_lsp::Client,
+) {
     let Some(future) = language_server
         .text_document_diagnostic(doc.identifier(), doc.previous_diagnostic_id.clone())
     else {