deploy

#!/usr/bin/env bash

set -e

REMOTE_HOST="$1"
VERSION="${2:-www}"

ENVIRONMENTS=(
  Production:rabbit-web.vpc.pivotal.io
  Staging:rabbit-web-stage.haas-40.pez.pivotal.io
)

main() {
  debug
  select_environment
  ensure_deploying_live_to_production
  deploy
}

debug() {
  [ -z "$DEBUG" ] || set -x
}

select_environment() {
  if [ -z "$REMOTE_HOST" ]
  then
    echo "Which environment do you want to deploy to?"
    select environment in "${ENVIRONMENTS[@]}"
    do
      ENVIRONMENT="$environment"
      export ENVIRONMENT
      REMOTE_HOST="${environment#*:}"
      break
    done
  fi
}

ensure_deploying_live_to_production() {
  if [[ "$ENVIRONMENT" =~ Production ]] && [[ "$(current_git_branch)" != "live" ]]
  then
    read -rp "Are you sure you want to deploy '$(current_git_branch)' to $ENVIRONMENT ? (y|n) " -n 1
    echo
    if ! [[ $REPLY =~ ^[Yy]$ ]]
    then
      echo "Good answer, only 'live' should be deployed to production"
      exit 1
    fi
  fi
}

current_git_branch() {
  git rev-parse --abbrev-ref HEAD
}

deploy() {
  TMP_DIR=/tmp/to_deploy_${VERSION}

  show_commands_as_they_run

  # shellcheck disable=SC2029
  ssh "$REMOTE_HOST" mkdir -p "$TMP_DIR"
  rsync -qcrz --delete --perms --chmod=a+rwX --exclude "*.pyc" --exclude "__pycache__" --exclude "release-notes/*.md" code conf site wordpress-theme "$REMOTE_HOST":"$TMP_DIR"
  # shellcheck disable=SC2029
  ssh -t "$REMOTE_HOST" sudo "$TMP_DIR/code/deploy-remote $VERSION"
}

show_commands_as_they_run() {
  echo
  set -x
}

main