text: #!/bin/bash
  
  # Copyright 2019 The Go Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style
  # license that can be found in the LICENSE file.
  
  set -e
  shopt -s nullglob
  
  knownfolders="$(printf '%s\n' "/mnt/c/Program Files (x86)/Windows Kits/"/*/Include/*/um/KnownFolders.h | sort -Vr | head -n 1)"
  [[ -n $knownfolders ]] || { echo "Unable to find KnownFolders.h" >&2; exit 1; }
  
  {
  	echo "// Code generated by 'mkknownfolderids.bash'; DO NOT EDIT."
  	echo
  	echo "package windows"
  	echo "type KNOWNFOLDERID GUID"
  	echo "var ("
  	while read -r line; do
  		[[ $line =~ DEFINE_KNOWN_FOLDER\((FOLDERID_[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+),[\t\ ]*(0x[^,]+)\) ]] || continue
  		printf "%s = &KNOWNFOLDERID{0x%08x, 0x%04x, 0x%04x, [8]byte{0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x}}\n" \
  			"${BASH_REMATCH[1]}" $(( "${BASH_REMATCH[2]}" )) $(( "${BASH_REMATCH[3]}" )) $(( "${BASH_REMATCH[4]}" )) \
  			$(( "${BASH_REMATCH[5]}" )) $(( "${BASH_REMATCH[6]}" )) $(( "${BASH_REMATCH[7]}" )) $(( "${BASH_REMATCH[8]}" )) \
  			$(( "${BASH_REMATCH[9]}" )) $(( "${BASH_REMATCH[10]}" )) $(( "${BASH_REMATCH[11]}" )) $(( "${BASH_REMATCH[12]}" ))
  	done < "$knownfolders"
  	echo ")"
  } | gofmt > "zknownfolderids_windows.go"
  