Darktable cli convert all files in provided locations

dt_raw_autoexport.sh

#!/usr/bin/env bash

# Simple bash script to automate raw conversion using darktable cli
# Copyright © 2021 C. Rapp

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


# based on
# https://gist.github.com/ruzickap/5b0d68d985f9cbca84acb49be5d2b0b5

shopt -s expand_aliases

DIR_EXPORT="dark_autoexport"

echo "Working directory $1"
cd $1

if [ ! -d "${DIR_EXPORT}" ]; then
  echo "Export directory does not exist"
  exit 3
fi

CNT=0
xmp_array=(`find ./ -maxdepth 1 -name "*.xmp" -printf "%f "`)

if [ ${#xmp_array[@]} -gt 0 ]; then
  echo "Found ${#xmp_array[@]} files"
else
  echo "WARNING -- NO XMP FILES FOUND"
  exit 4
fi

# exit 0
# for XMP_FILE in *.xmp; do
for XMP_FILE in "${xmp_array[@]}"; do
  RAW_FILE=`awk -F \" '/xmpMM:DerivedFrom=/ { print $2 }' $XMP_FILE`
  RAW_FILE_NAME="${XMP_FILE%.*}"
  FILE_NAME="${RAW_FILE%.*}"

  echo "*** $XMP_FILE [$RAW_FILE] [$FILE_NAME]"

  if [ "$RAW_FILE_NAME" != "$RAW_FILE" ]; then
    echo "Raw file name mentioned in xmp (xmpMM:DerivedFrom) file doesn't match the raw file taken from \"$RAW_FILE_NAME\" !"
    exit 1
  fi

  test -f $RAW_FILE || ( echo "$RAW_FILE does not exists !"; exit 2 )

  test -f "${FILE_NAME}.jpg" && rm -v "${DIR_EXPORT}/${FILE_NAME}.jpg"

  # 2> >(grep -v Gtk-WARNING >&2) >> Filter nasty Gtk warnings
  darktable-cli --verbose "${RAW_FILE}" "${XMP_FILE}" "${DIR_EXPORT}/${FILE_NAME}.jpg" \
    --core --conf plugins/imageio/format/jpeg/quality=90 2> >(grep -v Gtk-WARNING >&2)
  # original filename plus date and a counter
  exiftool -v '-filename<CreateDate' -d %f_%Y%m%d-%H%M%S%%-c.%%le \
    "-filemodifydate<datetimeoriginal#" "${DIR_EXPORT}/${FILE_NAME}.jpg"
  let "CNT+=1"
done

echo "--------------------------------------------------"
echo "Exported [${CNT}] files"
echo "--------------------------------------------------"