file-web-devicons

Simple Rust binary that reads lines from stdin, and prepends icons as defined in the excellent nvim-web-devicons.

Handles color codes as well, using the icon colors from the aforementioned library. Intended to take in output from fd or rg, to then be used as input for fzf-lua in Neovim.

I found that, in large Git projects, fzf-lua's default files provider would have a delay of several seconds before files would show up, however running fd or fzf directly would feel much snappier. I concluded (correctly) that this is because of the extra processing fzf-lua is doing to, amongst other things, prepend the file icon. By using a custom fzf-lua action that invokes fd and pipes the results through this binary, you still get the file icons, but with the snapiness of running fd/fzf directly. Same benefits for rg as well.

You could use this project in Neovim using fzf-lua as follows:

local fzf = require'fzf-lua'
local function fzf_files()
  fzf.fzf_exec('fd --type f --strip-cwd-prefix | /path/to/file-web-devicon', {
    actions = fzf.defaults.actions.files,
    fzf_opts = { ['--nth'] = 2, ['--delimiter'] = fzf.utils.nbsp },
    previewer = 'builtin',
  })
end

vim.keymap.set('n', '<C-p>', fzf_files)

local function fzf_live_grep()
  fzf.fzf_live(
    'rg --column --line-number --no-heading --color=always --smart-case -- <query> | /path/to/file-web-devicon', {
    actions = fzf.defaults.actions.files,
    prompt = 'Rg> ',
    fzf_opts = { ['--nth'] = 2, ['--delimiter'] = fzf.utils.nbsp },
    previewer = 'builtin',
  })
end

vim.keymap.set('n', '<C-s>', fzf_live_grep)

Note: This project has been tested only on MacOS. I don't know whether it will work on Windows, Linux, or e.g. with non-UTF8 path inputs.