deploy.sh

#!/bin/bash

ask_continue() {
    echo "Continue? (y/n)"
    read CONTINUE

    if [[ "$CONTINUE" != "y" ]]; then
        exit 1
    fi
}

echo_usage() {
    echo "deploy.sh production | staging"
}

if [[ "$2" != "" ]]; then
    echo_usage
    exit 1
fi

if [[ "$1" = "production" ]]; then
    TARGET="poap.vote"
    FRONTEND_BUILD_SCRIPT=build-prod
elif [[ "$1" = "staging" ]]; then
    TARGET="staging.poap.vote"
    FRONTEND_BUILD_SCRIPT=build-staging
else
    echo_usage
    exit 1
fi

echo "Will deploy to $TARGET"
ask_continue

UNIXTIME=$(date +%s)
DIRNAME="frontend_$UNIXTIME"

## BUILD FRONTEND

echo "Installing frontend depdencies"
cd frontend
npm install
cd ..
ask_continue

echo "Building frontend"
cd frontend
npm run $FRONTEND_BUILD_SCRIPT
cd ..
ask_continue

## BUILD BACKEND

echo "Installing backend dependencies"
cd backend
npm install --production
cd ..
ask_continue

## PUT UP MAINTENANCE PAGE

echo "Updating the maintenance page"
rsync -aP frontend/maintenance/* deploy@$TARGET:~/frontend_down
echo "The next action is destructive. It will put the site in maintenance mode."
echo "ARE YOU SURE?"
ask_continue

echo "** PUTTING THE SITE IN MAINTENANCE MODE **"
ssh deploy@$TARGET "rm -rfv ~/frontend_last && mv -v ~/frontend_live ~/frontend_last && mv -v ~/frontend_down ~/frontend_live"
ask_continue

## DEPLOY BACKEND

echo "Archiving current backend"
ssh deploy@$TARGET "rsync -aP ~/backend_live/* ~/backend_last"
ssh deploy@$TARGET "rsync -aP ~/backend_live/.babelrc ~/backend_last"
ssh deploy@$TARGET "rsync -aP ~/backend_live/.sequelizerc ~/backend_last"
ask_continue

echo "Pushing new backend to server"
rsync -aP backend/* --exclude=.env* deploy@$TARGET:~/backend_live
rsync -aP backend/.babelrc deploy@$TARGET:~/backend_live
rsync -aP backend/.sequelizerc deploy@$TARGET:~/backend_live
ask_continue

echo "Stopping the backend server"
ssh deploy@$TARGET "cd ~/backend_live && pwd && npm run stop-prod"
ask_continue

echo "Running database migrations"
ssh deploy@$TARGET "cd ~/backend_live && pwd && npm run migrate"
ask_continue

echo "Restarting the backend server"
ssh deploy@$TARGET "cd ~/backend_live && pwd && npm run start-prod"
ask_continue

## DEPLOY FRONTEND

echo "Copying frontend to server"
rsync -rv frontend/dist/spa/* deploy@$TARGET:~/frontend_archive/$DIRNAME
ask_continue

echo "Copying new frontend"
ssh deploy@$TARGET "cp -rv ~/frontend_archive/$DIRNAME ~/frontend_new"
ask_continue

echo "Swapping in new frontend"
ssh deploy@$TARGET "mv -v ~/frontend_live ~/frontend_down && mv -v ~/frontend_new ~/frontend_live"

echo "** DEPLOYMENT COMPLETE **"