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#!/bin/sh
set -e
# Constants
SED_COMMANDS="commands.tmp"
CLANG_FORMAT="clang-format-3.9"
INCLUDE='include/linux/'
LIB='lib/zstd/'
SPACES=' '
TAB=$'\t'
TMP="replacements.tmp"
function prompt() {
while true; do
read -p "$1 [Y/n]" yn
case $yn in
'' ) yes='yes'; break;;
[Yy]* ) yes='yes'; break;;
[Nn]* ) yes=''; break;;
* ) echo "Please answer yes or no.";;
esac
done
}
function check_not_present() {
grep "$1" $INCLUDE*.h ${LIB}*.{h,c} && exit 1 || true
}
function check_not_present_in_file() {
grep "$1" "$2" && exit 1 || true
}
function check_present_in_file() {
grep "$1" "$2" > /dev/null 2> /dev/null || exit 1
}
echo "Files: " $INCLUDE*.h $LIB*.{h,c}
prompt "Do you wish to replace 4 spaces with a tab?"
if [ ! -z "$yes" ]
then
# Check files for existing tabs
grep "$TAB" $INCLUDE*.h $LIB*.{h,c} && exit 1 || true
# Replace the first tab on every line
sed -i '' "s/^$SPACES/$TAB/" $INCLUDE*.h $LIB*.{h,c}
# Execute once and then execute as long as replacements are happening
more_work="yes"
while [ ! -z "$more_work" ]
do
rm -f $TMP
# Replaces $SPACES that directly follow a $TAB with a $TAB.
# $TMP will be non-empty if any replacements took place.
sed -i '' "s/$TAB$SPACES/$TAB$TAB/w $TMP" $INCLUDE*.h $LIB*.{h,c}
more_work=$(cat "$TMP")
done
rm -f $TMP
fi
prompt "Do you wish to replace '{ ' with a tab?"
if [ ! -z "$yes" ]
then
sed -i '' "s/$TAB{ /$TAB{$TAB/g" $INCLUDE*.h $LIB*.{h,c}
fi
rm -f $SED_COMMANDS
cat > $SED_COMMANDS <<EOF
s/current/curr/g
s/MEM_STATIC/ZSTD_STATIC/g
s/MEM_check/ZSTD_check/g
s/MEM_32bits/ZSTD_32bits/g
s/MEM_64bits/ZSTD_64bits/g
s/MEM_LITTLE_ENDIAN/ZSTD_LITTLE_ENDIAN/g
s/MEM_isLittleEndian/ZSTD_isLittleEndian/g
s/MEM_read/ZSTD_read/g
s/MEM_write/ZSTD_write/g
EOF
prompt "Do you wish to run these sed commands $(cat $SED_COMMANDS)?"
if [ ! -z "$yes" ]
then
sed -i '' -f $SED_COMMANDS $LIB*.{h,c}
fi
rm -f $SED_COMMANDS
prompt "Do you wish to clang-format $LIB*.{h,c}?"
if [ ! -z "$yes" ]
then
$CLANG_FORMAT -i ${LIB}*.{h,c}
fi
prompt "Do you wish to run some checks?"
if [ ! -z "$yes" ]
then
check_present_in_file ZSTD_STATIC_ASSERT ${LIB}zstd_internal.h
check_not_present_in_file STATIC_ASSERT ${LIB}mem.h
check_not_present_in_file "#define ZSTD_STATIC_ASSERT" ${LIB}compress.c
check_not_present MEM_STATIC
check_not_present FSE_COMMONDEFS_ONLY
check_not_present "#if 0"
check_not_present "#if 1"
check_not_present _MSC_VER
check_not_present __cplusplus
check_not_present __STDC_VERSION__
check_not_present __VMS
check_not_present __GNUC__
check_not_present __INTEL_COMPILER
check_not_present FORCE_MEMORY_ACCESS
check_not_present STATIC_LINKING_ONLY
fi
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