[SOLVED]How to get list of all lsp servers installed with nvim-lsp-installer?

Language Server Protocol (LSP)
1

Hi! In my init.lua i have these strings:

-- The nvim-cmp almost supports LSP's capabilities so You should advertise it to LSP servers..
local capabilities = vim.lsp.protocol.make_client_capabilities()
capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)

local servers = { 'clangd', 'sumneko_lua', 'ccls', 'cmake', 'lemminx', 'rust_analyzer', 'denols', 'gdscript', 'jedi_language_server', 'bashls', }

for _, lsp in ipairs(servers) do
  require 'lspconfig'[lsp].setup {
    on_attach = my_custom_on_attach,
    capabilities = capabilities,
  }
end

Question is: how can I get all installed lsp servers to update their capabilities? Or maybe there is some function, that update capabilities for all servers installed?

2

Do you want the list of the installed LSPs or attached LSPs, words matter here.

3

I’m not good at LSP terminology, but installed, i believe. In servers i store the installed servers.

4

I found the solution. I’m using nvim-lsp-installer. This thing installs all LSP servers in one directory (by default): vim.fn.stdpath("data").."/lsp_servers". So, here is a code to automatically setup all installed servers (tested only on linux):

-- IMPORTANT! FOR WINDOWS READ THE https://stackoverflow.com/a/11130774
local function scandir(directory)
  local i, t, popen = 0, {}, io.popen
  local pfile = popen('ls -a "'..directory..'"')
  if (pfile ~= nil) then
    for filename in pfile:lines() do
      if (filename ~= "." and filename ~= "..") then
        i = i + 1
        t[i] = filename
      end
    end
    pfile:close()
    return t
  end
end

local servers = scandir(vim.fn.stdpath("data").."/lsp_servers" )

for _, lsp in ipairs(servers) do
  require 'lspconfig'[lsp].setup {
    -- your capabilities or custom attach
  }
end

After some research, i found out that there is no simple way to find all installed LSP servers if you don’t use any LSP managers.