shell script to build and prepare a Flutter/Flame web project for itch.io

prepare_itch.sh

#!/bin/sh

# shell script to build and prepare a Flutter/Flame web project for itch.io
# tested on Mac
# after uploading set the dimensions in the "Embed options" section on itch.io 

# set these parameters before running
PROJECT_NAME='NAME'
PROJECT_DIR='FULL PATH TO THE FLUTTER DIRECTORY OF YOUR PROJECT' 
TEMP_BUILD_DIR='FULL PATH TO A TEMPORARY DIRECTORY (WILL BE CREATED AND DELETED AT THE END)'
OUTPUT_DIR='FULL PATH TO THE DIRECTORY WHERE THE ZIP FILE READY FOR UPLOAD TO ITCH.IO WILL BE PUT'

cd $PROJECT_DIR && 
flutter build web && 
cp -R "${PROJECT_DIR}/build/web" $TEMP_BUILD_DIR &&
sleep 1 && # recently breaks without waiting a bit after building
cd $TEMP_BUILD_DIR && 
sed -i '' 's/<base href="\/">//g' index.html &&
zip -vr "${OUTPUT_DIR}/${PROJECT_NAME}_$(date +%Y%m%d-%H%M%S).zip" ./ -x "*.DS_Store" && 
rm -r $TEMP_BUILD_DIR