Created
September 8, 2023 18:17
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bash:resize and upload to s3
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| #!/bin/bash | |
| cd "$(dirname "$0")" | |
| shopt -s nocaseglob | |
| rm -frv ./optimized_images/* | |
| mkdir -p ./optimized_images/400w | |
| AWS_PATH="<s3-uri>" | |
| for f in ./unoptimized_images/*.{jpg,jpeg,png} | |
| do | |
| if [ -f "$f" ]; then | |
| ext="${f##*.}" | |
| fn=$(basename "$f") | |
| fn_optimized="./optimized_images/$fn" | |
| fn_optimized_webp="${fn_optimized%.*}".webp | |
| fn_optimized_400w="./optimized_images/400w/$fn" | |
| fn_optimized_webp_400w="${fn_optimized_400w%.*}".webp | |
| ff=( "$fn_optimized" "$fn_optimized_400w" "$fn_optimized_webp" "$fn_optimized_webp_400w" ) | |
| # resize into given dimensions keeping ratio or original dimensions in case the image fits entirely into given dimensions | |
| for img in "${ff[@]}"; do | |
| resize="700x1240>" | |
| if [[ "$img" == */400w/* ]]; then | |
| resize="400x" | |
| fi | |
| extimg="${img##*.}" | |
| case "$ext" in | |
| jpg|jpeg) | |
| if [ "$extimg" != "webp" ]; then | |
| img="${img%.*}".jpg | |
| convert "$f" -resize "$resize" -sampling-factor 4:2:0 -strip -quality 80 -interlace JPEG -colorspace sRGB -sigmoidal-contrast 5,50% "$img" | |
| else | |
| convert "$f" -resize "$resize" -define webp:lossless=false "$img" | |
| fi | |
| ;; | |
| png) | |
| if [ "$extimg" != "webp" ]; then | |
| optipng "$f" -out "$fn_optimized" | |
| mogrify -resize "$resize" -sigmoidal-contrast 5,50% "$img" | |
| else | |
| convert "$f" -resize "$resize" -define webp:lossless=false "$img" | |
| fi | |
| ;; | |
| *) | |
| echo "Skypping unknown extension ["$ext"]" | |
| ;; | |
| esac | |
| aws_file="${img##*/}" | |
| if [[ "$img" == */400w/* ]]; then | |
| aws_file=400w/"$aws_file" | |
| fi | |
| aws s3 cp $img $AWS_PATH/$aws_file --acl public-read --metadata "Cache-Control=max-age=2592000" | |
| done | |
| fi | |
| done | |
| shopt -u nocaseglob |
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