extractratings.sh

#!/bin/bash

# Given image files, check the file to see if it has an embedded rating. If it
# does, write it to a RawTherapee sidecar file (.pp3), unless there already is
# a sidecar file.

for FILE in $*
do
    RATING=`exiftool -p '$Rating' $FILE`
    if [ "$RATING" -ne "0" -a ! -z "$RATING" ]
    then
        if [ ! -f "$FILE.pp3" ]
        then
            echo Writing $RATING to $FILE.pp3
            printf "[General]\nRank=$RATING\n" > "$FILE.pp3"
        else
            echo Skipping: $FILE.pp3 already exists
        fi
    fi
done