Bug: lualine doesn't show filetype icon for files without extension

[kassio]

trafficstars

The 'filetype' component doesn't find the filetype icon sometimes:

My config

lualine.setup({
  extensions = {
    require('plugins.statusline.extensions.filetree'),
    require('plugins.statusline.extensions.neoterm'),
  },
  options = {
    theme = theme.colorscheme,
    icons_enabled = true,
    section_separators = '',
    component_separators = '',
  },
  sections = {
    lualine_a = { utils.bufnr() },
    lualine_b = {
      {
        'filetype',
        colored = true,
        icon_only = true,
        padding = 1,
      },
      {
        'filename',
        file_status = true,
        path = 1,
        shorting_target = 30,
        symbols = { modified = ' ', readonly = ' ', unnamed = ' [No Name] ' },
        padding = 0,
      },
    },
    lualine_c = {
      { vim.my.treesitter.gps.location },
    },
    lualine_x = {
      {
        'diagnostics',
        sources = { 'nvim_diagnostic' },
        symbols = {
          error = theme.signs.error,
          warn = theme.signs.warn,
          hint = theme.signs.hint,
          info = theme.signs.info,
        },
        color_error = theme.colors.error,
        color_warn = theme.colors.warn,
        color_hint = theme.colors.hint,
        color_info = theme.colors.info,
      },
    },
    lualine_y = { 'diff' },
    lualine_z = {
      { '[[%3l:%-3c]]' },
      utils.mode(),
    },
  },
  inactive_sections = {
    lualine_a = { utils.bufnr() },
    lualine_b = utils.filename({ icon_color = false }),
    lualine_c = {},
    lualine_x = {},
    lualine_y = {},
    lualine_z = {},
  },
})

Self Checks

• [x] I'm using the latest lualine.
• [x] I didn't find the issue in exsisting issues or prs.

How to reproduce the problem

I'm not sure, but it seems related to how the filetype is set, when it's set in ftdetect with BufReadPos it doesn't set the icon.

Expected behaviour

Actual behaviour

Minimal config to reproduce the issue

Config

[shadmansaleh]

nvim-web-devicons uses it's own filetype detection for icons. It only allows us to ask for icons based on extensions. There's an issue open there to add support for filetype based icons . This issue can't be fixed without that and that issue is open for over am year so 🤷‍♂️

[fitrh]

The workaround to this kind of issue is to override nvim-web-devicon config

local devicons = require("nvim-web-devicons")
local icons = devicons.get_icons()

devicons.setup({
  override = {
    ruby = icons["rb"],
  },
})