scripts/check-config.sh

   1 #!/bin/sh
   2 # Copyright (c) 2016 Google, Inc
   3 # Written by Simon Glass <sjg@chromium.org>
   4 #
   5 # Check that the u-boot.cfg file provided does not introduce any new
   6 # ad-hoc CONFIG options
   7 #
   8 # You can generate the list of current ad-hoc CONFIG options (those which are
   9 # not in Kconfig) with this command:
  10 #
  11 # export LC_ALL=C LC_COLLATE=C
  12 # git grep CONFIG_ |tr ' \t' '\n\n' |sed -n 's/^\(CONFIG_[A-Z0-9_]*\).*/\1/p' \
  13 #       |sort |uniq >scripts/config_whitelist.txt;
  14 # unset LC_ALL LC_COLLATE
  15
  16 # Usage
  17 #    check-config.sh <path to u-boot.cfg> <path to whitelist file> <source dir>
  18 #
  19 # For example:
  20 #   scripts/check-config.sh b/chromebook_link/u-boot.cfg kconfig_whitelist.txt .
  21
  22 path="$1"
  23 whitelist="$2"
  24 srctree="$3"
  25
  26 # Temporary files
  27 configs="${path}.configs"
  28 suspects="${path}.suspects"
  29 ok="${path}.ok"
  30 new_adhoc="${path}.adhoc"
  31
  32 export LC_ALL=C
  33 export LC_COLLATE=C
  34
  35 cat ${path} |sed -n 's/^#define \(CONFIG_[A-Za-z0-9_]*\).*/\1/p' |sort |uniq \
  36         >${configs}
  37
  38 comm -23 ${configs} ${whitelist} > ${suspects}
  39
  40 cat `find ${srctree} -name "Kconfig*"` |sed -n \
  41         -e 's/^config *\([A-Za-z0-9_]*\).*$/CONFIG_\1/p' \
  42         -e 's/^menuconfig \([A-Za-z0-9_]*\).*$/CONFIG_\1/p' |sort |uniq > ${ok}
  43 comm -23 ${suspects} ${ok} >${new_adhoc}
  44 if [ -s ${new_adhoc} ]; then
  45         echo "Error: You must add new CONFIG options using Kconfig"
  46         echo "The following new ad-hoc CONFIG options were detected:"
  47         cat ${new_adhoc}
  48         echo
  49         echo "Please add these via Kconfig instead. Find a suitable Kconfig"
  50         echo "file and add a 'config' or 'menuconfig' option."
  51         # Don't delete the temporary files in case they are useful
  52         exit 1
  53 else
  54         rm ${suspects} ${ok} ${new_adhoc}
  55 fi