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General node.js Express app deployment script for Heroku.
#!/bin/bash
# requires that node app.js be contained in a Procfile
# ./heroku-deploy.sh <NODE_ENV> <local_branch_to_push> <app_to_destroy_if_redeploy>
# validate minimal input
if [ -z "$1" ] || [ -z "$2" ]; then
echo "Run with at least NODE_ENV and local_branch_to_push as arguments $1 and $2"
exit 1
fi
# is this a redeploy?, if so destroy the current app
if [ -n "$3" ]; then
# destroy the app
heroku apps:destroy -a $3 --confirm $3
fi
# create new app
heroku create
# configure new app
heroku config:set NODE_ENV=$1
# push the app
git push heroku $2:master --force
# wait for node start up, then open it
sleep 3
heroku open
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