#! /bin/sh

#================================================================
# diffcheck
# List files different from ones of another version
#================================================================


# set variables
progexts='\.in|\.h|\.c|\.cc|\.cpp|\.cxx|\.java|\.pl|\.pm|\.pod|\.rb|\.rd'
docexts='\.[1-9]|spex\.html|\spex-ja\.html|\.txt'
regex="($progexts|$docexts)\$"


# check arguments
if [ $# != 1 ]
then
  printf 'diffcheck: usage: diffcheck directory_of_oldversion\n' 1>&2
  exit 1
fi


# diff files
find . -type f | egrep $regex |
while read file
do
  old=`printf '%s\n' "$file" | sed 's/^\.\///'`
  printf 'Checking %s and %s ... ' "$file" "$1/$old"
  res=`diff -q "$file" "$1/$old"`
  if [ -z "$res" ]
  then
    printf 'same\n'
  else
    printf '### !!! DIFFERENT !!! ###\n'
  fi
done


# exit normally
exit 0



# END OF FILE