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