texlab root not being detected correctly

[a-torgovitsky]

Description

Directory structure is this:

tree ./texlab-root-mwe  -a --dirsfirst -L 2                                                        ─╯
./texlab-root-mwe
├── ch1
│   ├── ch1.aux
│   ├── ch1.fdb_latexmk
│   ├── ch1.fls
│   ├── ch1.log
│   ├── ch1.pdf
│   ├── ch1.synctex.gz
│   ├── ch1.tex
│   ├── .texlabroot
│   └── texlabroot
├── .git
│   ├── branches
│   ├── hooks
│   ├── info
│   ├── objects
│   ├── refs
│   ├── config
│   ├── description
│   └── HEAD
├── main.aux
├── main.fdb_latexmk
├── main.fls
├── main.log
├── main.pdf
├── main.synctex.gz
└── main.tex

7 directories, 19 files

If I open ch1.tex then :LspInfo shows that the root directory is the top level ./texlab-root-mwe. My understanding is that the presence of either .texlabroot or texlabroot (I have both) should force the root directory to be detected as ./texlab-root-mwe/ch1.
This issue was discussed in texlab, but the conclusion was that it was the domain of nvim-lspconfig.
#3005 seems aimed at addressing the same issue, but doesn't seem to have worked?

[DimitrisDimitropoulos]

This is expected behavior util.root_pattern, gives priority to the first item on the list, see. If you want to change the default it is pretty easy to do on your own, for example something along the lines:

  require('lspconfig').texlab.setup {
    root_dir = util.root_pattern('.texlabroot', 'texlabroot', '.git', '.latexmkrc', 'Tectonic.toml'),
  }

I would suggest to experiment a little bit and see what order works for you