Custom nvim-tree keymapping settings get outside of my nvim-tree configuration

[Nikita128]

So here I have this config copied from the repo documentation:

-- set termguicolors to enable highlight groups vim.opt.termguicolors = true
local function on_attach(bufnr)
    -- default mappings
    api.config.mappings.default_on_attach(bufnr)
    -- custom mappings
    vim.keymap.set('n', '<C-t>', api.tree.change_root_to_parent,
                   opts('Up'))
    vim.keymap.set('n', '?', api.tree.toggle_help, opts('Help'))
    vim.keymap.set('n', '<leader>s', api.tree.toggle_help, opts('Help'))
end

-- pass to setup along with your other options
require("nvim-tree").setup {
    sort_by = "case_sensitive",
    view = {width = 30},
    renderer = {group_empty = true},
    filters = {dotfiles = true},

    on_attach = on_attach
}

Before I open nvim-tree, the ? key doesn't produce the help window. But once I open and close nvim-tree, I can open that help window with ? key again even though I am not in the nvimtree window and it's closed.

As far as I understand on_attach setting is loaded once the nvim-tree is first launched, and then it propagates the changes on the rest of the vim.

So what should I do if I want my key bindings to work only in nvim-tree window and the default behavior - everywhere else? Write some script that checks if current window is a nvim-tree window?

[gegoune]

What does your opts function look like? It seems to be missing buffer argument.

[Nikita128]

Pretty much like this

local function opts(desc)
    return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
  end

[Nikita128]

Ok, actually I figured out that I need to pass bufnr parameter that I receive in on_attach function into the key bindings setting every time it's called. So now everything is working!