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#!/bin/bash
set -Eeu -o pipefail
# Imports photos from a given location(s) to PHOTO_DIR, organized by calendar
# year and with a filename matching the date the photo/video was taken.
#
# The date is determined by the following, in order of precedence:
# 1. exif data from the image/video
# 2. regex matching for a date-like string inside the filename
# 3. the modification time of the souce file
DATE_FORMAT='%Y-%m-%d-%H%M%S'
DRY_RUN=0
usage() {
echo 'usage: import.sh -cp|-mv PHOTO_DIR PATH...' 1>&2
exit 1
}
if (( $# < 3 )); then
usage
fi
if [ "$1" == -cp ]; then
MOVE_COMMAND='cp --preserve=timestamps'; shift
elif [ "$1" == -mv ]; then
MOVE_COMMAND=mv; shift
else
usage
fi
PHOTO_DIR=$1; shift
date_from_exif() {
local date=$(exiftool -ee -quiet -tab -dateformat "$DATE_FORMAT" -json -DateTimeOriginal "$1" | jq --raw-output '.[].DateTimeOriginal.val')
if [ "$date" == 'null' ]; then
date=$(exiftool -ee -quiet -tab -dateformat "$DATE_FORMAT" -json -MediaCreateDate "$1" | jq --raw-output '.[].MediaCreateDate.val')
fi
if [[ "$date" =~ 20[0-9]{2}-[0-1][0-9]-[0-3][0-9]-[0-2][0-9][0-5][0-9][0-5][0-9] ]]; then
echo "$date"
fi
}
date_from_filename() {
if [[ "$1" =~ (20[0-9]{2})[_-]([0-1][0-9])[_-]([0-3][0-9])[_-]([0-2][0-9])[_-]([0-5][0-9])[_-]([0-5][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-${BASH_REMATCH[4]}${BASH_REMATCH[5]}${BASH_REMATCH[6]}"
elif [[ "$1" =~ (20[0-9]{2})[_-]([0-1][0-9])[_-]([0-3][0-9])[_-]([0-2][0-9][0-5][0-9][0-5][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-${BASH_REMATCH[4]}"
elif [[ "$1" =~ (20[0-9]{2})([0-1][0-9])([0-9]{2})[_-]([0-2][0-9][0-5][0-9][0-5][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-${BASH_REMATCH[4]}"
elif [[ "$1" =~ (20[0-9]{2})([0-1][0-9])([0-9]{2})([0-2][0-9][0-5][0-9][0-5][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-${BASH_REMATCH[4]}"
elif [[ "$1" =~ (20[0-9]{2})[_-]([0-1][0-9])[_-]([0-3][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-000000"
elif [[ "$1" =~ (20[0-9]{2})([0-1][0-9])([0-3][0-9]) ]]; then
echo "${BASH_REMATCH[1]}-${BASH_REMATCH[2]}-${BASH_REMATCH[3]}-000000"
fi
}
date_from_mtime() {
date -r "$1" "+$DATE_FORMAT"
}
# Generates a "safe" destination filename. If "foo.jpg" already exists, then this function
# will return "foo_2.jpg" (or "foo_3.jpg" if "foo_2.jpg" exists...etc)
safe_filename() {
if (( $# > 1 )); then
local src=$1 dst=$2
if [ -d "$dst" ]; then
dst="${dst}/$(basename "$src")"
fi
else
local dst=$1
fi
local ext=${dst##*.}
local odst=$dst
local i=2
while [ -f "$dst" ]; do
dst="${odst%.*}_${i}.${ext}"
((i++))
done
echo "$dst"
}
safe_mv() {
local src=$1 dst=$2
dst=$(safe_filename "$src" "$dst")
if ((DRY_RUN)); then
echo "[dry-run] $MOVE_COMMAND $src -> $dst"
else
$MOVE_COMMAND --no-clobber --verbose "$src" "$dst"
fi
}
while IFS='' read -r -d '' file; do
date=$(date_from_exif "$file")
if [ -z "$date" ]; then
date=$(date_from_filename "$file")
fi
if [ -z "$date" ]; then
date=$(date_from_mtime "$file")
fi
year=${date:0:4}
ext=${file##*.}
ext=${ext,,}
target="${PHOTO_DIR}/${year}/${date}.${ext}"
mkdir -p "${PHOTO_DIR}/${year}"
safe_mv "$file" "$target"
done < <(find "$@" -type f \( -iname '*.jpg' -o -iname '*.png' -o -iname '*.mp4' \) -print0)
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