fix(sidebar): fix get_sources when blink.compat is installed

[rachartier]

Hello,

blink.cmp has a module: blink.compat. This module is used to work with nvim-cmp sources but does not "emulate" all the functions present in nvim-cmp.

As a result, when the autocmds in the sidebar are set up and used (like quitting the sidebar), it is checked whether require("cmp") exists. With blink.compat, it does indeed exist, but the get_sources function used afterward does not, which causes an error: Error executing lua callback: ...local/share/nvim/lazy/avante.nvim/lua/avante/sidebar.lua:1547: attempt to call method 'get_sources' (a nil value)

This small fix adds a check for the get_sources method. If it does not exist, the rest of the function is aborted.

[aarnphm]

Let's not do this. probably better to have cmp backend (we should add support to blink fwiw)

then update the callback here instead of doing this (otherwise maintenance cost are too high)

[aarnphm]

tiny

[doodleEsc]

tried with blink.compat and it works fine with first time.

blink.cmp call function is_available(), but self.bufnr in cmp_avante.commands and cmp_avante.mentions will never change.

function commands_source:is_available() return api.nvim_get_current_buf() == self.bufnr end

I change is_available function

function commands_source:is_available() return vim.bo.filetype == "AvanteInput" end

#doodleEsc/avante.nvim@a5438d0

my LazyVim.nvim config, juse add avante_commands and avante_mentions in source.compat

  {

    "saghen/blink.cmp",
    opts = {
      sources = {
        compat = { "avante_commands", "avante_mentions" },
      },
    },
  },

it works for me