Upload client-side assets to S3 via AWS CLI

upload-to-s3.sh

#!/bin/bash

DESTINATION_BUCKET="hashed-assets-eu"
DESTINATION_FOLDER="page-kit"

upload_file() {
	local FILE="$1"
	local ENCODING
	local TYPE
	
	if [[ "$FILE" == *".gz" ]]; then
		ENCODING="gzip"
	elif [[ "$FILE" == *".br" ]]; then
		ENCODING="br"
	fi

	# the AWS CLI can guess content types but not the original type of compressed files
	# <https://github.com/aws/aws-cli/issues/3817>
	case "$FILE" in
		*".js"|*".js.gz"|*".js.br")
			TYPE="application/javascript"
			;;
		*".css"|*".css.gz"|*".css.br")
			TYPE="text/css"
			;;
		*".map")
			TYPE="application/octet-stream"
			;;
	esac

	aws s3 cp $FILE "s3://$DESTINATION_BUCKET/$DESTINATION_FOLDER/$FILE" \
		--cache-control=31536000 \
		--content-type="$TYPE; charset=utf-8" \
		--content-encoding="$ENCODING" \
		--acl="public-read"
}

upload_files() {
	local SOURCE_FILES=($(find public/*.{js,css,gz,br,map} 2>/dev/null))
	
	for FILE in ${SOURCE_FILES[@]}; do
		upload_file "$FILE"
	done
}

upload_files

those are both very good suggestions 👍