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rust-analyzer: lightweight profile (disable cachePriming + cargo.auto… #1557

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14 changes: 12 additions & 2 deletions src/solidlsp/language_servers/rust_analyzer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -505,9 +505,19 @@ def _get_initialize_params(repository_absolute_path: str) -> InitializeParams:
"showUnlinkedFileNotification": True,
"showDependenciesExplorer": True,
"assist": {"emitMustUse": False, "expressionFillDefault": "todo"},
"cachePriming": {"enable": True, "numThreads": 0},
# rustback lightweight patch: serena's symbol tools don't need
# rust-analyzer's eager whole-workspace+deps cache priming, nor a
# re-index on every cargo metadata / target/ change. On large,
# actively-built Rust workspaces these drove rust-analyzer to
# 40+ GB RSS and re-indexed on every external `cargo build`.
# Disabling them keeps symbol navigation working at a fraction of
# the memory. NOTE: checkOnSave is intentionally left enabled below
# because serena's get_diagnostics_for_file relies on flycheck
# (`cargo check`) for Rust diagnostics. (Upstream: expose these as
# a config knob / a "lightweight" RA profile.)
"cachePriming": {"enable": False, "numThreads": 0},
"cargo": {
"autoreload": True,
"autoreload": False,
"buildScripts": {
"enable": True,
"invocationLocation": "workspace",
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