question: how can i format some text selection?

[nicolimo86]

Right now I can only format the whole buffer. I would like to be more precise and just format the selected lines.

My current config:

local function lsp_keymaps(bufnr)
    local opts = { noremap = true, silent = true }
    local keymap = vim.api.nvim_buf_set_keymap
   ...
    keymap(bufnr, "n", "<leader>lf", "<cmd>lua vim.lsp.buf.format{ async = true }<cr>", opts)
    ...
end

lsp.on_attach(function(client, bufnr)
    local opts = { buffer = bufnr, remap = false }

    lsp.default_keymaps({ buffer = bufnr })
    lsp_keymaps(bufnr)
end)

Adding a new key mapping in visual mode doesn't seem to work:

local function lsp_keymaps(bufnr)
    local opts = { noremap = true, silent = true }
    local keymap = vim.api.nvim_buf_set_keymap
   ...
    keymap(bufnr, "n", "<leader>lf", "<cmd>lua vim.lsp.buf.format{ async = true }<cr>", opts)
    keymap(bufnr, "v", "lf", "<cmd>lua vim.lsp.buf.format{ async = true }<cr>", opts)  <-- new mapping
    ...
end

lsp.on_attach(function(client, bufnr)
    local opts = { buffer = bufnr, remap = false }

    lsp.default_keymaps({ buffer = bufnr })
    lsp_keymaps(bufnr)
end)

Can you please share your solution?

[VonHeikemen]

Your new keymap should work. I tested in my own config.

What language server are you using to format?

[nicolimo86]

I tested on a terraform file (.tf). I have 2 language servers attached to the buffer:

 Client: terraformls (id: 1, bufnr: [1])
 Client: tflint (id: 2, bufnr: [1])

I have the same behaviour (pressing lf after a selection does nothing) on bash file with bashls language server attached to the buffer.

[nicolimo86]

It works on python and lua files! This means that the language servers i'm using for terraform and bash don't support range formatting i guess.