LSP, LTeX: massive helix_lsp::transport [ERROR] logging

[getreu]

I am using LTeX for grammar checking in Markdown text files.

[[language]]
name = "markdown"
language-servers = [{ name = "ltex"}]
auto-format = false
file-types = ["md", "txt"]
scope = "source.markdown"
roots = []

Example Markdown:

---
title:      "Multiple languages"
subtitle:   "Note"
author:     "Getreu"
date:       "2023-07-01"
lang:       "de-DE"
---

Das ist Deutsch oder doch nicht? 

<!-- LTeX: language=fr -->

Ceci n'est pas. 

<!-- LTeX: language=en-GB-->

This is English. 

I noticed massive false positive error logging in Helix' log file, which grew rapidly to 93MB.

2023-07-01T11:28:15.752 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.752 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'en-GB' via LanguageTool: \"\\n\\nThis is English.\"\n"
2023-07-01T11:28:15.753 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.753 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"
2023-07-01T11:28:15.907 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.907 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'de-DE' via LanguageTool: \"\\n\\n\\n\\n\\n\\n\\n\\nDas ist Deutsch oder doch nicht?\\n\\n\"\n"
2023-07-01T11:28:15.911 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.912 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"
2023-07-01T11:28:15.912 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.912 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'fr' via LanguageTool: \"\"\n"
2023-07-01T11:28:15.915 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.915 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"
2023-07-01T11:28:15.915 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.916 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'fr' via LanguageTool: \"\\n\\nCeci n'est pas.\\n\\n\"\n"
2023-07-01T11:28:15.920 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.920 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"
2023-07-01T11:28:15.921 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.921 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'en-GB' via LanguageTool: \"\"\n"
2023-07-01T11:28:15.924 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.924 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"
2023-07-01T11:28:15.924 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker logTextToBeChecked\n"
2023-07-01T11:28:15.924 helix_lsp::transport [ERROR] ltex err <- "FINE: Checking the following text in language 'en-GB' via LanguageTool: \"\\n\\nThis is English.\"\n"
2023-07-01T11:28:15.927 helix_lsp::transport [ERROR] ltex err <- "Jul 01, 2023 11:28:15 AM org.bsplines.ltexls.server.DocumentChecker checkAnnotatedTextFragment\n"
2023-07-01T11:28:15.927 helix_lsp::transport [ERROR] ltex err <- "FINE: Obtained 0 rule matches\n"

hx --version
helix 23.05 (df094909)

./ltex-ls --version
{
  "ltex-ls": "16.0.0",
  "java": "11.0.12"
}

[the-mikedavis]

Those lines are printed to stderr by ltex-ls, we don't have control over them. Ideally ltex-ls should have its own logfile for printing statements like this. As a workaround you can create a wrapper script for ltex-ls and redirect the stderr to /dev/null, although that will silence actual errors in cases where ltex-ls crashes.

[getreu]

I filed a bug report upstream: LTeX: massive helix_lsp::transport [ERROR] logging · Issue #261 · valentjn/ltex-ls