#!/bin/sh
#set -vx

# Amber saved test updater
# Scott Brozell, TSRI

dif_extension=.dif
save_extension=.save

# create usage statement
usage()
{
cat << EOF
Usage: $0 [-v] regular_expression

Description
       Search *$dif_extension files for regular_expression and make the
       corresponding output files the $save_extension files.

Options
       -v
              verbose.
EOF

exit 1;
}

# process command line options
# note that getopt fails by losing the quotes of quoted regular expressions
on='on'
verbose=''
if [ "$1" = '-v' ]
then 
    verbose=$on
    shift
fi

# command requires 1 argument
if [ $# -lt 1 ]
then
    usage;
fi

# loop over dif files
for dif in `find . -name "*$dif_extension" ! -size 0c -print`
do
    if [ "$verbose" = "$on" ]; then
        echo "Searching $dif"
    fi
    if grep "$1" $dif
    then
        if [ "$verbose" = "$on" ]; then
            echo "    match found; printing $dif:"
            cat $dif
        fi
        directory=`dirname $dif`
        base=`basename $dif $dif_extension`
        echo "move $base to $base$save_extension ?"
        read answer
        if [ "$answer" = "yes" -o "$answer" = "y" -o "$answer" = "Y" -o "$answer" = "Yes" ]
        then
            mv $directory/$base $directory/$base$save_extension
            if [ $? -eq 0 ]
            then
                echo "Move successful"
                echo 
            else
                echo "Move Failed !"
                echo 
            fi
        fi
    else
        if [ "$verbose" = "$on" ]; then
            echo "    No match."
        fi
    fi
done

exit