A simple script for deploying to various dokku instances

dokku_deploy.sh

#!/bin/bash

readonly user="my_dokku_username"
readonly host="my_hostname"
readonly targets=(
	# git branch | project name | virtual host 
	# list your dokku instances here...
)

# execute from the project root
if [ ${PWD##*/} == "scripts" ]; then
	cd ..
fi

options=()
for target in ${targets[@]}
do
	IFS=$'|' read -r branch project vhost <<< "$target"
    git remote remove $branch
    git remote add $branch ${user}@${vhost}.${host}:${project}
	options+=(${branch})
done

echo "Select a deployment target"
PS3="Enter choice (1-${#options[@]}): "

select opt in "${options[@]}" "Cancel"; do 

    case "$REPLY" in
    1 ) IFS=$'|' read -r branch project vhost <<< "${targets[REPLY - 1]}";;
    2 ) IFS=$'|' read -r branch project vhost <<< "${targets[REPLY - 1]}";;
    3 ) IFS=$'|' read -r branch project vhost <<< "${targets[REPLY - 1]}";;
    $(( ${#options[@]}+1 )) ) echo "Goodbye"; exit 0;;
    *) echo "Invalid option. Try again."; continue;;
    esac

    break
done

echo "$(tput bold)"
echo "Deploying..."
echo "Project: $project"
echo "Branch: $branch"
echo "Server: $vhost.$host"
echo "$(tput sgr0)"

npm test
if [ $? == 0 ]; then # No deploying unless the tests pass :)
    echo "$(tput bold)Tests passed...$(tput sgr0)"
    CURRENT_ENV=`ssh -t $user@$vhost.$host config:get $project NODE_ENV`
    echo "$(tput bold)NODE_ENV is set to $CURRENT_ENV"
    read -p "Do you want to change it? (Y/n) $(tput sgr0)" -n 1 -r
    echo

    if [[ $REPLY =~ ^[Yy]$ ]]; then
	    read -p "$(tput bold)NODE_ENV=" NEXT_ENV
	    read -p "Really set NODE_ENV to $NEXT_ENV? (Y/n) $(tput sgr0)" -n 1 -r
	    echo
	    if [[ $REPLY =~ ^[Yy]$ ]]; then
	    	ssh -t ${user}@${vhost}.${host} config:set ${project} NODE_ENV=$NEXT_ENV
	    fi
	fi

    git push ${branch} master

    if [ $? == 0 ]; then
    	echo "$(tput setaf 2) $(tput bold) SUCCESS $(tput sgr0)"
    fi
fi