kernel-srpm-macros/kmod.attr

%__kmod_path           ^/lib/modules/.*/(modules.builtin|.*\.ko|.*\.ko\.gz|.*\.ko\.bz2|.*\.ko\.xz|.*\.ko\.zst)$

# Notes on Lua:
# The backslash in strings (like "\n" newline) needs to be doubled
# because we are inside rpm macro. Single backslashes before most chars
# disappear (removed by rpm's parser), so "\n" turns into just "n".
# In string.gsub patterns, unlike regexps, backslash has no special meaning.
# It can't escape . and such. (Use one-character set [.] to represent
# literal period, or lua's percent escape: %.)
# Pipe (|) has no special meaning too.

%__kmod_provides() %{lua:
  function basename(fn)
      local b = string.gsub(fn, ".*/", "")
      -- the above adjusts gsub() result to 1 value
      -- "return f()" construct would return _all_ values, two in case of gsub()
      return b
  end
  function strip_compress_sfx(fn)
      local cnt
      fn, cnt = string.gsub(fn, "%.gz$", "")
      if cnt == 1 then return fn; end
      fn, cnt = string.gsub(fn, "%.bz2$", "")
      if cnt == 1 then return fn; end
      fn, cnt = string.gsub(fn, "%.xz$", "")
      if cnt == 1 then return fn; end
      fn, cnt = string.gsub(fn, "%.zst$", "")
      return fn
  end
  function printdep(mod)
      print("kmod("..mod..") ")
  end
  local fn = rpm.expand("%1")
  local bn = basename(fn)
  if bn == "modules.builtin" then
      for l in io.lines(fn) do
          local builtin_mod = basename(l)
          printdep(builtin_mod)
          local nocompr = strip_compress_sfx(builtin_mod)
          if nocompr ~= builtin_mod then
              printdep(nocompr)
          end
      end
  else
      local mod = string.match(bn, "%g+%.ko")
      if mod then
          printdep(mod)
          local nocompr = strip_compress_sfx(mod)
          if nocompr ~= mod then
              printdep(nocompr)
          end
      end
  end
}