Scripts that facilitate using Git to track changes to photo/video content without actually committing the content

git-initimg

git config filter.heicfilter.clean heicsig
git config filter.heicfilter.smudge cat
git config filter.heicfilter.required true
git config filter.imgfilter.clean imgsig
git config filter.imgfilter.smudge cat
git config filter.imgfilter.required true
git config filter.vidfilter.clean vidsig
git config filter.vidfilter.smudge cat
git config filter.vidfilter.required true
cat >.gitattributes <<EOF
*.HEIC filter=heicfilter
*.heic filter=heicfilter
*.JPG filter=imgfilter
*.jpg filter=imgfilter
*.png filter=imgfilter
*.THM filter=imgfilter
*.DNG filter=imgfilter
*.dng filter=imgfilter
*.AVI filter=vidfilter
*.avi filter=vidfilter
*.MP4 filter=vidfilter
*.mp4 filter=vidfilter
*.m4v filter=vidfilter
*.MOV filter=vidfilter
*.mov filter=vidfilter
*.psd filter=vidfilter
*.CR2 filter=vidfilter
*.CRW filter=vidfilter
*.mp3 filter=vidfilter
EOF

heicsig

set -u
set -e
trap onexit INT
trap onexit TERM
trap onexit EXIT

TMPFILE=

onexit() {
	if [ ! "$TMPFILE" = "" ]; then
		rm -f $TMPFILE
	fi
}

TMPFILE=`mktemp -t imgsig`
IMAGEMAGICK_PATH=${HEICSIG_IMAGEMAGICK_PATH:-}

echo File checksum: `tee $TMPFILE | sha1sum | cut -f1 -d' '`
echo Image checksum: `${IMAGEMAGICK_PATH}magick $TMPFILE ppm:- | sha1sum | cut -f1 -d' '`

echo EXIF:
cat $TMPFILE | exiftool -n -x ExifToolVersion - |
	LANG=C sed -E 's/^(Image\ Size +: )([0-9]+) ([0-9]+)(.*)$/\1\2x\3\4/g'

imgsig

set -u
set -e
trap onexit INT
trap onexit TERM
trap onexit EXIT

TMPFILE=

onexit() {
	if [ ! "$TMPFILE" = "" ]; then
		rm -f $TMPFILE
	fi
}

TMPFILE=`mktemp -t imgsig`
IMAGEMAGICK_PATH=${IMGSIG_IMAGEMAGICK_PATH:-}

echo File checksum: `tee $TMPFILE | sha1sum | cut -f1 -d' '`
echo Image checksum: `${IMAGEMAGICK_PATH}convert $TMPFILE ppm:- | sha1sum | cut -f1 -d' '`

echo EXIF:
cat $TMPFILE | exiftool -n -x ExifToolVersion - |
	LANG=C sed -E 's/^(Image\ Size +: )([0-9]+) ([0-9]+)(.*)$/\1\2x\3\4/g'

vidsig

set -u
set -e
trap onexit INT
trap onexit TERM
trap onexit EXIT

TMPFILE=

onexit() {
	if [ ! "$TMPFILE" = "" ]; then
		rm -f $TMPFILE
	fi
}

TMPFILE=`mktemp -t imgsig`

echo File checksum: `tee $TMPFILE | sha1sum | cut -f1 -d' '`

echo EXIF:
cat $TMPFILE | exiftool -n -x ExifToolVersion -x Warning - |
	sed -E 's/^(Image\ Size +: )([0-9]+) ([0-9]+)(.*)$/\1\2x\3\4/g'