ceph/src/zstd/contrib/linux-kernel/kernelize.sh

   1 #!/bin/sh
   2 set -e
   3
   4 # Constants
   5 SED_COMMANDS="commands.tmp"
   6 CLANG_FORMAT="clang-format-3.9"
   7 INCLUDE='include/linux/'
   8 LIB='lib/zstd/'
   9 SPACES='    '
  10 TAB=$'\t'
  11 TMP="replacements.tmp"
  12
  13 function prompt() {
  14   while true; do
  15     read -p "$1 [Y/n]" yn
  16     case $yn in
  17         '' ) yes='yes'; break;;
  18         [Yy]* ) yes='yes'; break;;
  19         [Nn]* ) yes=''; break;;
  20         * ) echo "Please answer yes or no.";;
  21     esac
  22 done
  23 }
  24
  25 function check_not_present() {
  26   grep "$1" $INCLUDE*.h ${LIB}*.{h,c} && exit 1 || true
  27 }
  28
  29 function check_not_present_in_file() {
  30   grep "$1" "$2" && exit 1 || true
  31 }
  32
  33 function check_present_in_file() {
  34   grep "$1" "$2" > /dev/null 2> /dev/null || exit 1
  35 }
  36
  37 echo "Files: " $INCLUDE*.h $LIB*.{h,c}
  38
  39 prompt "Do you wish to replace 4 spaces with a tab?"
  40 if [ ! -z "$yes" ]
  41 then
  42   # Check files for existing tabs
  43   grep "$TAB" $INCLUDE*.h $LIB*.{h,c} && exit 1 || true
  44   # Replace the first tab on every line
  45   sed -i '' "s/^$SPACES/$TAB/" $INCLUDE*.h $LIB*.{h,c}
  46
  47   # Execute once and then execute as long as replacements are happening
  48   more_work="yes"
  49   while [ ! -z "$more_work" ]
  50   do
  51     rm -f $TMP
  52     # Replaces $SPACES that directly follow a $TAB with a $TAB.
  53     # $TMP will be non-empty if any replacements took place.
  54     sed -i '' "s/$TAB$SPACES/$TAB$TAB/w $TMP" $INCLUDE*.h $LIB*.{h,c}
  55     more_work=$(cat "$TMP")
  56   done
  57   rm -f $TMP
  58 fi
  59
  60 prompt "Do you wish to replace '{   ' with a tab?"
  61 if [ ! -z "$yes" ]
  62 then
  63   sed -i '' "s/$TAB{   /$TAB{$TAB/g" $INCLUDE*.h $LIB*.{h,c}
  64 fi
  65
  66 rm -f $SED_COMMANDS
  67 cat > $SED_COMMANDS <<EOF
  68 s/current/curr/g
  69 s/MEM_STATIC/ZSTD_STATIC/g
  70 s/MEM_check/ZSTD_check/g
  71 s/MEM_32bits/ZSTD_32bits/g
  72 s/MEM_64bits/ZSTD_64bits/g
  73 s/MEM_LITTLE_ENDIAN/ZSTD_LITTLE_ENDIAN/g
  74 s/MEM_isLittleEndian/ZSTD_isLittleEndian/g
  75 s/MEM_read/ZSTD_read/g
  76 s/MEM_write/ZSTD_write/g
  77 EOF
  78
  79 prompt "Do you wish to run these sed commands $(cat $SED_COMMANDS)?"
  80 if [ ! -z "$yes" ]
  81 then
  82   sed -i '' -f $SED_COMMANDS $LIB*.{h,c}
  83 fi
  84 rm -f $SED_COMMANDS
  85
  86 prompt "Do you wish to clang-format $LIB*.{h,c}?"
  87 if [ ! -z "$yes" ]
  88 then
  89   $CLANG_FORMAT -i ${LIB}*.{h,c}
  90 fi
  91
  92 prompt "Do you wish to run some checks?"
  93 if [ ! -z "$yes" ]
  94 then
  95   check_present_in_file ZSTD_STATIC_ASSERT ${LIB}zstd_internal.h
  96   check_not_present_in_file STATIC_ASSERT ${LIB}mem.h
  97   check_not_present_in_file "#define ZSTD_STATIC_ASSERT" ${LIB}compress.c
  98   check_not_present MEM_STATIC
  99   check_not_present FSE_COMMONDEFS_ONLY
 100   check_not_present "#if 0"
 101   check_not_present "#if 1"
 102   check_not_present _MSC_VER
 103   check_not_present __cplusplus
 104   check_not_present __STDC_VERSION__
 105   check_not_present __VMS
 106   check_not_present __GNUC__
 107   check_not_present __INTEL_COMPILER
 108   check_not_present FORCE_MEMORY_ACCESS
 109   check_not_present STATIC_LINKING_ONLY
 110 fi