marleyvim/nvim/lua/plugins/linting/nvim-lint.lua

return {
  'nvim-lint',
  event = { 'BufReadPost', 'BufWritePost', 'BufNewFile' },
  after = function()
    local lint = require('lint')

    lint.linters_by_ft = {
      bash = { 'shellcheck' },
      fish = { 'fish' },
      nix = { 'statix' },
      scss = { 'stylelint' },
      sh = { 'shellcheck' },
      yaml = { 'yamllint' },
    }

    local linters = {
      shellcheck = {
        args = {
          '-x',
        },
      },
    }

    for name, linter in pairs(linters) do
      if type(linter) == 'table' and type(lint.linters[name]) == 'table' then
        lint.linters[name] =
          vim.tbl_deep_extend('force', lint.linters[name], linter)

        if type(linter.prepend_args) == 'table' then
          lint.linters[name].args = lint.linters[name].args or {}
          vim.list_extend(lint.linters[name].args, linter.prepend_args)
        end
      else
        lint.linters[name] = linter
      end
    end

    vim.api.nvim_create_autocmd(
      { 'BufWritePost', 'BufReadPost', 'InsertLeave' },
      {
        group = vim.api.nvim_create_augroup('nvim-lint', { clear = true }),
        callback = function()
          require('lint').try_lint()
        end,
      }
    )
  end,
}