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#!/usr/bin/env bash
set -e
OPTIPNG=$(which optipng)
if ! [ -x "$OPTIPNG" ]; then
echo "optipng executable not found, please install" >&2
exit 1
fi
JPEGOPTIM=$(which jpegoptim)
if ! [ -x "$JPEGOPTIM" ]; then
echo "jpegoptim executable not found, please install" >&2
exit 2
fi
SCOUR=$(which scour)
if ! [ -x "$SCOUR" ]; then
echo "scour executable not found, please install" >&2
exit 3
fi
set +e
CHECK_DIR='../'
if [[ -d "$1" ]]; then
CHECK_DIR=$1
fi
function recursive_optimize_images() {
cd "$1" || return
DIR_NAME=${PWD##*/}
if [[ "$DIR_NAME" == "node_modules" ]]; then
return
elif [[ "$DIR_NAME" == "tests" ]]; then
return
fi
# Optimize all PNGs
for png in *.png
do
[[ -e "$png" ]] || break
$OPTIPNG -o6 -strip all "$png"
done
# Optimize all JPGs
for jpg in *.jpg
do
[[ -e "$jpg" ]] || break
$JPEGOPTIM --strip-all "$jpg"
done
# Optimize all SVGs
for svg in *.svg
do
[[ -e "$svg" ]] || break
mv $svg $svg.opttmp
$SCOUR --create-groups \
--enable-id-stripping \
--enable-comment-stripping \
--shorten-ids \
--remove-metadata \
--strip-xml-prolog \
--no-line-breaks \
-i $svg.opttmp \
-o $svg
rm $svg.opttmp
done
# Check all subfolders
for dir in */
do
[[ -e "$dir" ]] || break
if [[ -d "$dir" ]]; then
recursive_optimize_images "$dir"
cd ..
fi
done
}
recursive_optimize_images "$CHECK_DIR"
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