Map nvim-web-devicons To nerd-font

audit.lua

local lunajson = require "lunajson"
local icons_by_filename = require("icons-default").icons_by_filename
local icons_by_file_extension = require("icons-default").icons_by_file_extension
local icons_by_operating_system = require("icons-default").icons_by_operating_system

-- read the json
local f, err, rc = io.open("glyphnames.json", "r")
if not f then
  io.stderr:write(string.format("%s\n", err))
  os.exit(rc)
end

-- parse the json
local ok, glyphnames = pcall(lunajson.decode, f:read())
f:close()
if not ok then
  io.stderr:write(string.format("%s\n", glyphnames))
  os.exit(1)
end
---@cast glyphnames table

-- map name by codepoint value
local names_by_codepoint = {}
for name, data in pairs(glyphnames) do
  if name and data and data.code then
    local code = tonumber(data.code, 16)
    if not names_by_codepoint[code] then
      names_by_codepoint[code] = {}
    end
    table.insert(names_by_codepoint[code], name)
  end
end

-- calculate codepoint for icons and output the name(s), codepoint, icon and web-devicons name
local function output(icons)
  for name, data in pairs(icons) do
    local cp = utf8.codepoint(data.icon)
    local names = names_by_codepoint[cp] or { "NOGLYPH-" }
    local i = 1
    for _, n in ipairs(names) do
      print(string.format("%-25s %d/%d 0x%05x %s %-25s", n, i, #names, cp, data.icon, name))
      i = i + 1
    end
  end
end

output(icons_by_filename)
output(icons_by_file_extension)
output(icons_by_operating_system)

./lua audit.lua | sed -E 's/([^-]-).*/\1/g' | sort | uniq -c | sort -n

      2 fae-
      7 NOGLYPH-
      8 cod-
     13 oct-
     27 custom-
     31 linux-
     32 fa-
     58 md-
     76 dev-
    122 seti-