exif.sh

#!/usr/bin/env bash

case "${1}" in
    zm35)
        export LENS_NAME="Carl Zeiss Distagon T* 35mm F1.4 ZM"
        export FOCAL_LENGTH="35"
        export APERTURE_VALUE="1.4"
        ;;

    km35)
        export LENS_NAME="Konica M-Hexanon 35mm F2"
        export FOCAL_LENGTH="35"
        export APERTURE_VALUE="2"
        ;;

    vm35)
        export LENS_NAME="Voigtlander Nokton Classic 35mm F1.4"
        export FOCAL_LENGTH="35"
        export APERTURE_VALUE="1.4"
        ;;

    vm15)
        export LENS_NAME="Voigtlander Super Wide-Heliar Aspherical III 15mm F4.5"
        export FOCAL_LENGTH="15"
        export APERTURE_VALUE="4.5"
        ;;

    pk50)
        export LENS_NAME="SMC Pentax-M 50mm F1.4"
        export FOCAL_LENGTH="50"
        export APERTURE_VALUE="1.4"
        ;;

    lomo32)
        export LENS_NAME="Lomogon 32mm F2.5 Art Lens"
        export FOCAL_LENGTH="32"
        export APERTURE_VALUE="2.5"
        ;;

    *)
        echo $"Usage: $0 <zm35|km35|vm35|vm15|pk50|lomo32> <?path>"

        exit 1
esac

if [ "" != "${2}" ]; then
    export TARGET_PATH="${2}"
else
    export TARGET_PATH=`pwd`
fi


if [ ! -d "${TARGET_PATH}" ]; then
    echo "Path is't folder or not exists"

    exit 1
fi

echo "Target Path: ${TARGET_PATH}"
echo "Lens Name: ${LENS_NAME}"
echo "Focal Length: ${FOCAL_LENGTH}"
echo "Aperture Value: ${APERTURE_VALUE}"

echo -e "\nIs above information correct? [Y/n] \c"

read ANWSER

if [ "n" == "${ANWSER}" ]; then
    exit 1
fi

echo ""

for FILENAME in "${TARGET_PATH}"/*.jpg; do
    if [ ! -f "${FILENAME}" ]; then
        continue
    fi

    echo "${FILENAME}"

    exiftool -overwrite_original \
        -Lens="${LENS_NAME}" \
        -LensModel="${LENS_NAME}" \
        -XMP-microsoft:LensModel="${LENS_NAME}" \
        -LensInfo="${FOCAL_LENGTH}mm f/${APERTURE_VALUE}" \
        -FocalLength="${FOCAL_LENGTH}.0" \
        -FocalLengthIn35mmFormat="${FOCAL_LENGTH}" \
        -MaxApertureValue="${APERTURE_VALUE}" \
        -ApertureValue="" \
        -FNumber="" \
        -LensID="" \
        "${FILENAME}" 1> /dev/null
done