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#!/bin/sh
# exifautotran [list of files]
#
# Transforms Exif files so that Orientation becomes 1
#
trap "if test -n \"\$tempfile\"; then rm -f \"\$tempfile\"; fi" INT QUIT TERM
for i
do
case $i in
-v|--version) echo "exifautotran"; exit 0;;
-h|--help)
cat <<EOF
exifautotran [list of files]
Transforms Exif files so that Orientation becomes 1
EOF
exit 0;;
esac
case `jpegexiforient -n "$i"` in
1) transform="";;
2) transform="-flip horizontal";;
3) transform="-rotate 180";;
4) transform="-flip vertical";;
5) transform="-transpose";;
6) transform="-rotate 90";;
7) transform="-transverse";;
8) transform="-rotate 270";;
*) transform="";;
esac
if test -n "$transform"; then
tempfile=`mktemp`;
if test "$?" -ne "0"; then
echo "Failed to create temporary file" >&2
exit 1;
fi
echo Executing: jpegtran -copy all $transform $i >&2
jpegtran -copy all $transform "$i" > $tempfile
if test $? -ne 0; then
echo Error while transforming $i - skipped. >&2
rm "$tempfile"
else
cp "$tempfile" "$i"
rm "$tempfile"
jpegexiforient -1 "$i" > /dev/null
fi
fi
done