Clojurians Log v2

High CPU usage from the clojure-lsp server is plaguing me in the malli codebase (especially the malli.core namespace, which is ~2,700 lines of code). Indentation behaviour causes the CPU spike: • When I slurp/barf forms using smartparens (e.g. sp-forward-barf-sexp and sp-forward-slurp-sexp). • Workspace log shows that the client sends the entire file's worth of content (~2,700 lines of code) to the LSP server, for any slurp/barf action. This is happening to provide clojure-lsp-powered re-indentation.

[Trace - 02:28:42 PM] Sending notification 'textDocument/didChange'.Params: {  "textDocument": {    "uri": "file:///path/to/malli/src/malli/core.cljc",    "version": 30  },  "contentChanges": [    {      "text": "(ns malli.core\n  

... [SNIP] ... 

the whole file worth of content... ... ..." 
 }
]

• I assume that's a bit much for cljfmt, because the rangeFormatting request times out.

lsp-request: Timeout while waiting for response.  Method: textDocument/rangeFormatting

• Meanwhile, my Emacs remains frozen for several seconds (until the timeout). • My Emacs becomes responsive if I turn off lsp indentation support by setting lsp-enable-indentation nil so that Emacs uses CIDER indentation. Is this expected behaviour? i.e. sending the whole file, when modifying even a single form? I noticed older issues (like https://github.com/clojure-lsp/clojure-lsp/pull/795) which suggest the rangeFormatting performance hit should not occur any more. I am on Emacs 28.1, using the latest available clojure-lsp server, and latest-available packages for clojure-lsp, lsp-mode, and smartparens.