lua <<EOF

  local cmp = require('cmp')

  cmp.setup({
    snippet = {
      expand = function(args)
        vim.fn["UltiSnips#Anon"](args.body)
      end,
    },
    performance = {
      debounce = 500,
      throttle = 500,
    },
    window = {
      documentation = cmp.config.window.bordered(),
      completion = cmp.config.window.bordered(),
    },
    mapping = {
      ['<C-p>'] = cmp.mapping.select_prev_item(),
      ['<C-n>'] = cmp.mapping.select_next_item(),
      ['<C-g>'] = cmp.mapping.abort(),
      -- ['<Tab>'] = cmp.mapping.confirm({ select = true }),
      ['<Cr>'] = cmp.mapping.confirm({ select = false }),
      ['<C-d>'] = cmp.mapping.scroll_docs(-4),
      ['<C-f>'] = cmp.mapping.scroll_docs(4),
    },
    sources = cmp.config.sources({
    { name = 'nvim_lsp' },
    -- { name = 'ultisnips' },
    { name = 'emoji' },
    }, {
      { name = 'buffer' },
    })
  })

  cmp.setup.filetype('gitcommit', {
    sources = cmp.config.sources({
      { name = 'cmp_git' },
    }, {
      { name = 'buffer' },
    })
  })

  cmp.setup.cmdline({ '/', '?' }, {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
  })

  cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources( {
      { name = 'cmdline' }
    })
  })

  local on_attach = function(_, _)
    vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, {})
    vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, {})
    vim.keymap.set('n', '<leader>f', vim.lsp.buf.format, {})
    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, {})
    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, {})
    vim.keymap.set('n', 'gr', vim.lsp.buf.references, {})
    vim.keymap.set('n', 'K', vim.lsp.buf.hover, {})
    vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float, {})
  end

  local nvim_lsp = require('lspconfig')
  local capabilities = require('cmp_nvim_lsp').default_capabilities()
  local servers = { "r_language_server", "ts_ls", "astro", "texlab" }
  for _, lsp in ipairs(servers) do
    nvim_lsp[lsp].setup {
      on_attach = on_attach,
      flags = {
        debounce_text_changes = 1000,
      },
      capabilities = capabilities
    }
  end
EOF