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mobilizon.chapril.org-mobil.../js/scripts/build/pictures.sh

90 lines
1.9 KiB

#!/bin/bash
set -eu
output_dir="../priv/static/img/pics"
resolutions=(
480
1024
1920
)
ignore=(
homepage_background.png
)
file_extension () {
filename=$(basename -- "$file")
echo "${filename##*.}"
}
file_name () {
filename=$(basename -- "$file")
echo "${filename%.*}"
}
convert_image () {
name=$(file_name)
extension=$(file_extension)
res="$1w"
output="$output_dir/$name-$res.$extension"
convert -geometry "$resolution"x $file $output
}
produce_webp () {
name=$(file_name)
output="$output_dir/$name.webp"
cwebp $file -quiet -o $output
}
progress() {
local w=80 p=$1; shift
# create a string of spaces, then change them to dots
printf -v dots "%*s" "$(( $p*$w/100 ))" ""; dots=${dots// /.};
# print those dots on a fixed-width space plus the percentage etc.
printf "\r\e[K|%-*s| %3d %% %s" "$w" "$dots" "$p" "$*";
}
echo "Generating responsive versions of the pictures…"
if ! command -v convert &> /dev/null
then
echo "$(tput setaf 1)ERROR: The convert command could not be found. You need to install ImageMagick.$(tput sgr 0)"
exit 1
fi
nb_files=$( shopt -s nullglob ; set -- $output_dir/* ; echo $#)
tasks=$((${#resolutions[@]}*$nb_files))
i=1
for file in $output_dir/*
do
if [[ -f $file ]]; then
for resolution in "${resolutions[@]}"; do
convert_image $resolution
progress $(($i*100/$tasks)) still working...
i=$((i+1))
done
fi
done
echo -e "\nDone!"
echo "Generating optimized versions of the pictures…"
if ! command -v cwebp &> /dev/null
then
echo "$(tput setaf 1)ERROR: The cwebp command could not be found. You need to install webp.$(tput sgr 0)"
exit 1
fi
nb_files=$( shopt -s nullglob ; set -- $output_dir/* ; echo $#)
i=1
for file in $output_dir/*
do
if [[ -f $file ]]; then
produce_webp
progress $(($i*100/$nb_files)) still working...
i=$((i+1))
fi
done
echo -e "\nDone!"