Dokku Roster Deploy script

#!/bin/bash

print_usage() {
  echo "Usage: ./deploy.sh [staging|prod]"
  exit 1
}

ENVS=( prod staging )

if [[ $# -lt 1 ]]; then
  print_usage
fi

if ! [[ ${ENVS[*]} =~ "$1" ]]; then
  print_usage
fi

if ! [[ -e "config.local.json.$1" ]]; then
  echo "Missing config.local.json.$1 for deployment"
  exit 1
fi

echo "Using config.local.json.$1 for push"
cp config.local.json config.local.json.bak
cp config.local.json.$1 config.local.json
git add -f config.local.json
git commit -m "Committing config.local.json for deployment"

echo "Deploying to $1"
git push -f $1 master

echo "Resetting config.local.json"
git reset HEAD^
mv config.local.json.bak config.local.json