Make incremental sync opt-in

1 files changed, 6 insertions, 1 deletions

diff --git a/crates/rust-analyzer/src/caps.rs b/crates/rust-analyzer/src/caps.rs
index 44222d8bd..680415cac 100644
--- a/crates/rust-analyzer/src/caps.rs
+++ b/crates/rust-analyzer/src/caps.rs
@@ -1,4 +1,5 @@
 //! Advertizes the capabilities of the LSP Server.
+use std::env;
 
 use crate::semantic_tokens;
 
@@ -16,7 +17,11 @@ pub fn server_capabilities() -> ServerCapabilities {
     ServerCapabilities {
         text_document_sync: Some(TextDocumentSyncCapability::Options(TextDocumentSyncOptions {
             open_close: Some(true),
-            change: Some(TextDocumentSyncKind::Incremental),
+            change: Some(if env::var("RA_PROFILE").is_ok() {
+                TextDocumentSyncKind::Incremental
+            } else {
+                TextDocumentSyncKind::Full
+            }),
             will_save: None,
             will_save_wait_until: None,
             save: Some(SaveOptions::default()),