nvim-ks/lua/plugins/conform.lua

return { -- Autoformat
  'stevearc/conform.nvim',
  lazy = false,
  keys = {
    {
      '<leader>f',
      function()
        require('conform').format { async = true, lsp_fallback = true }
      end,
      mode = '',
      desc = '[F]ormat buffer',
    },
  },
  opts = {
    notify_on_error = false,
    format_on_save = false,
    -- format_on_save = function(bufnr)
    --   -- Disable "format_on_save lsp_fallback" for languages that don't
    --   -- have a well standardized coding style. You can add additional
    --   -- languages here or re-enable it for the disabled ones.
    --   local disable_filetypes = { c = true, cpp = true }
    --   return {
    --     timeout_ms = 500,
    --     lsp_fallback = not disable_filetypes[vim.bo[bufnr].filetype],
    --   }
    -- end,
    formatters_by_ft = {
      lua = { 'stylua' },
      -- Conform can also run multiple formatters sequentially
      python = { 'isort', 'black' },
      --
      -- You can use a sub-list to tell conform to run *until* a formatter
      -- is found.
      javascript = { { 'prettierd', 'prettier' } },
      java = { 'clang-format' },
    },
  },
}