dotfiles/lua/plugins/conform.lua

return {
  { -- Autoformat
    'stevearc/conform.nvim',
    event = { 'BufWritePre' },
    cmd = { 'ConformInfo' },
    keys = {
      {
        '<leader>f',
        function()
          require('conform').format { async = true, lsp_format = 'fallback' }
        end,
        mode = '',
        desc = '[F]ormat buffer',
      },
    },
    opts = {
      notify_on_error = false,
      format_on_save = function(bufnr)
        -- Filetypes to apply formatting to on save. Remove from this list
        -- to disable formatting on save for that filetype.
        local filetypes = {
          'lua',
          'rust',
        }
        local lsp_format_opt
        if filetypes[vim.bo[bufnr].filetype] then
          lsp_format_opt = 'fallback'
        else
          lsp_format_opt = 'never'
        end
        return {
          timeout_ms = 500,
          lsp_format = lsp_format_opt,
        }
      end,
      formatters_by_ft = {
        lua = { 'stylua' },
        yaml = { 'yamlfmt' },
        c = { 'clang-format' },
      },
      formatters = {
        ['yamlfmt'] = {
          prepend_args = { '-formatter', 'retain_line_breaks_single=true,trim_trailing_whitespace=true' },
        },
        -- all of the builtin clang-format styles are pretty bad IMHO. don't fallback to any.
        -- unfortunately, `--fallback-style` doesn't allow inline customization like the
        -- `--style` option does.
        -- i really can't say that i'm impressed with clang-format overall ...
        ['clang-format'] = {
          prepend_args = { '--style=file', '--fallback-style=none' },
        },
      },
    },
  },
}

-- vim: ts=2 sts=2 sw=2 et