No Diagnostics in Projects with NeoVim and autoCheckFile = false

[janAkali]

System:

Linux openSUSE Tumbleweed 20250109 x86_64
Kernel: Linux 6.12.8-2-default

Neovim:

$ nvim -v
NVIM v0.10.3
Build type: RelWithDebInfo
LuaJIT 2.1.1731601260

Langserver (tested github release, stable from nimble and latest commit):

$ nimlangserver --version
1.6.0

Nimsuggest (comes with Nim 2.0.14 by default):

$ nimsuggest --version
Nim Compiler Version 2.0.14 [Linux: amd64]
Compiled at 2024-12-23
Copyright (c) 2006-2023 by Andreas Rumpf

git hash: bf4de6a394e040d9810cba8c69fb2829ff04dcc6
active boot switches: -d:release -d:danger --gc:markAndSweep

Neovim config:

local Plug = vim.fn['plug#']
vim.call('plug#begin', '~/.config/nvim/plugged')
  Plug 'neovim/nvim-lspconfig'
vim.call('plug#end')


-- LSP completion
vim.api.nvim_create_autocmd('LspAttach', {
  group = vim.api.nvim_create_augroup('UserLspConfig', {}),
  callback = function(ev)
    -- Enable completion triggered by <c-x><c-o>
    vim.bo[ev.buf].omnifunc = 'v:lua.vim.lsp.omnifunc'
  end
})

require('lspconfig').nim_langserver.setup{
  settings = {
    nim = {
      autoCheckProject = true,
      autoCheckFile = false,
      nimsuggestTimeout = 300000,
    }
  }
}

:LspInfo :

lspconfig: require("lspconfig.health").check()

LSP configs active in this session (globally) ~
- Configured servers: nim_langserver
- OK Deprecated servers: (none)

LSP configs active in this buffer (bufnr: 1) ~
- Language client log: ~/.local/state/nvim/lsp.log
- Detected filetype: `nim`
- 1 client(s) attached to this buffer
- Client: `nim_langserver` (id: 1, bufnr: [1])
  root directory:    ~/Fluffy/code/playground/lsp_bug/
  filetypes:         nim
  cmd:               ~/.nimble/bin/nimlangserver
  version:           `1.6.0`
  executable:        true
  autostart:         true

...

:checkhealth lsp :

vim.lsp: require("vim.lsp.health").check()

- LSP log level : WARN
- Log path: /home/janakali/.local/state/nvim/lsp.log
- Log size: 147 KB

vim.lsp: Active Clients
- nim_langserver (id: 1)
    Root directory: ~/Fluffy/code/playground/lsp_bug
    Command: /home/janakali/.nimble/bin/nimlangserver
    Settings: {
      nim = {
        autoCheckFile = false,
        autoCheckProject = true,
        nimsuggestTimeout = 300000
      }
    }
    Attached buffers: 1

vim.lsp: File Watcher
- file watching "(workspace/didChangeWatchedFiles)" disabled on all clients

vim.lsp: Position Encodings
- No buffers contain mixed position encodings

Reproduction steps:

$ mkdir lsp_bug
$ cd lsp_bug
$ nimble init -y
<edit `src/lsp_bug.nim` to introduce syntax error>
$ nvim src/ls_bug.nim
<no diagnostics, no errors, lsp completion works>
<edit something again>
:w
<still no diagnostics or errors>

Single source files outside of projects work as expected.

I can definitely remember this working more than a month ago, but can't get diagnostics to work with old langserver + old neovim. Very weird.

[janAkali]

~/.local/state/nvim/lsp.log

[START][2025-01-14 12:33:38] LSP logging initiated
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Starting nimlangserver                     version=1.6.0 params="(clientProcessId: none(int), transport: some(stdio), port: 0)"\nDBG Starting stdio server                     \n'
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"initialize\\""\n'
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Initialize received...                    \nDBG Registering monitor for process            pid=87916\n"
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Initialize completed. Trying to start nimsuggest instances\n"
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Starting nimsuggest for entry point        entry=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Starting createOrRestartNimsuggest         projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim uri=\n"
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Using {nimVersion}                         nimVersion="Nim Compiler Version 2.0.14 [Linux: amd64] from /home/janakali/.local/share/grabnim/current/bin"\nDBG Creating new nimsuggest project            projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\n'
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"INF Starting nimsuggest                        root=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim timeout=120000 path=/home/janakali/.local/share/grabnim/current/bin/nimsuggest workingDir=/home/janakali/Fluffy/code/playground/lsp_bug\n"
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Parsing nimsuggest capability              capability=con\n"
[ERROR][2025-01-14 12:33:38] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Parsing nimsuggest capability              capability=unknownFile\nDBG Nimsuggest Capabilities                    capabilities="{con, unknownFile}"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Nimsuggest port                            portLine=43615\n"
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Nimsuggest initialized successfully        projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG ShowMessage                                message="Nimsuggest initialized for /home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim"\nDBG [Processsing Message]                      request="\\"initialized\\""\nDBG Client initialized.                       \nDBG Requesting configuration from the client  \nDBG [Processsing Message]                      request="\\"workspace/didChangeConfiguration\\""\nDBG Changed configuration:                     conf="{\\"settings\\":{\\"nim\\":{\\"autoCheckProject\\":true,\\"autoCheckFile\\":false,\\"nimsuggestTimeout\\":300000}}}"\nDBG [Processsing Message]                      request="\\"textDocument/didOpen\\""\nDBG New document opened for URI:               uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Auto-guessing project file for             file=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Found nimble project                       projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG processQueue                               size=1\nDBG Started...                                 benchmark="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG timeoutCallback is set                     timeout=120000 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Received the following configuration       configuration="[{\\"autoCheckProject\\":true,\\"autoCheckFile\\":false,\\"nimsuggestTimeout\\":300000}]"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Sending result(s)                          length=1 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG CPU Time                                   benchmark="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" time=0.247 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG isKnown                                    filePath=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim sug=true\n"
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG getProjectFile                             project=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim fileUri=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Document associated with the following projectFile uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\n"
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG ShowMessage                                message="Opening file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim"\n'
[ERROR][2025-01-14 12:33:39] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG processQueue                               size=1\nDBG Started...                                 benchmark="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG timeoutCallback is set                     timeout=120000 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:40] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Sending result(s)                          length=1 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:40] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG CPU Time                                   benchmark="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" time=0.249 command="known \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG isKnown                                    filePath=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim sug=true\n'
[ERROR][2025-01-14 12:33:53] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didChange\\""\n'
[ERROR][2025-01-14 12:33:53] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didChange\\""\n'
[ERROR][2025-01-14 12:33:54] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didChange\\""\n'
[ERROR][2025-01-14 12:33:54] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didChange\\""\n'
[ERROR][2025-01-14 12:33:57] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didSave\\""\n'
[ERROR][2025-01-14 12:33:57] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG processQueue                               size=1\n"
[ERROR][2025-01-14 12:33:57] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Started...                                 benchmark="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG timeoutCallback is set                     timeout=120000 command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:57] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Checking project                           uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\n"
[ERROR][2025-01-14 12:33:57] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	"DBG Running diagnostics                        uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\n"
[ERROR][2025-01-14 12:33:58] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG Sending result(s)                          length=0 command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:33:58] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG CPU Time                                   benchmark="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" time=0.130 command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\n'
[ERROR][2025-01-14 12:34:14] .../vim/lsp/rpc.lua:770	"rpc"	"/home/janakali/.nimble/bin/nimlangserver"	"stderr"	'DBG [Processsing Message]                      request="\\"textDocument/didSave\\""\nDBG processQueue                               size=1\nDBG Started...                                 benchmark="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0" command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG timeoutCallback is set                     timeout=120000 command="changed \\"/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\\":0:0"\nDBG Checking project                           uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Running diagnostics                        uri=file:///home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG [Processsing Message]                      request="\\"shutdown\\""\nDBG Shutting down                             \nDBG stopping child nimsuggest processes       \nDBG Stopping nimsuggest for                    root=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Stopped nimsuggest                         res=ok()\nDBG NimSuggest needed to be restarted due to an error \nWRN Server stopped.                            projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim\nDBG Starting createOrRestartNimsuggest         projectFile=/home/janakali/Fluffy/code/playground/lsp_bug/src/lsp_bug.nim uri=\n'

[janAkali]

Also, probably related: with autoCheckFile = true and inside a project LSP doesn't check file until you type something.