while getopts b: params

do

case "${params}"

in

b)BUCKET_NAME=${OPTARG};;

esac

done

if [ -z "$BUCKET_NAME" ]

then echo "No S3 bucket provided. Usage: sh setup.sh -b <BUCKET_NAME>"

exit 0

fi

#download python 3.9

wget https://www.python.org/ftp/python/3.9.18/Python-3.9.18.tgz

tar xvf Python-3.9.18.tgz && cd Python-3.9.18

./configure --enable-optimizations && sudo make altinstall && cd ..

#create and activate python venv

python3.9 -m venv .venv && source .venv/bin/activate

#set variables. Replace <BUCKET_NAME> with the name of your S3 bucket

LAYER_FOLDER_TREE=python/lib/python3.9/site-packages

#download and zip pillow layer

mkdir -p $LAYER_FOLDER_TREE

pip install pillow -t $LAYER_FOLDER_TREE

#zip -r pillow_layer.zip python && rm -r python

#download pyzbar layer

#mkdir -p $LAYER_FOLDER_TREE

pip install pyzbar -t $LAYER_FOLDER_TREE

#get shared library (libzbar.so) needed for pyzbar to work properly within the Lambda function

sudo yum install -y autoconf autopoint gettext-devel automake pkgconfig libtool

git clone https://github.com/mchehab/zbar.git

cd zbar/

autoreconf -vfi

./configure --with-gtk=auto --with-python=auto && make && cd ..

cp zbar/zbar/.libs/libzbar.so.0.3.0 $LAYER_FOLDER_TREE/pyzbar/libzbar.so

sed -i "s/find_library('zbar')/('\/opt\/python\/lib\/python3.9\/site-packages\/pyzbar\/libzbar.so')/g" $LAYER_FOLDER_TREE/pyzbar/zbar_library.py

zip -r barcode_layer_py39.zip python && rm -rf python && rm -rf zbar

zip -r lambda_function.zip barcode-qr-decoder-lambda/src/code/lambda_function.py

aws s3 cp barcode_layer_py39.zip s3://$BUCKET_NAME/BarcodeQRDecoder/qr-reader/assets/

aws s3 cp lambda_function.zip s3://$BUCKET_NAME/BarcodeQRDecoder/qr-reader/assets/