Sync Heroku config vars to CircleCI project env vars

sync-heroku-circleci-env-vars.sh

#!/bin/bash

set -e

if [ -z "${CIRCLECI_API_TOKEN}" ]; then
  echo "Missing required environment variable: CIRCLECI_API_TOKEN"
  echo "You can create one at https://app.circleci.com/settings/user/tokens"
fi

ORG_NAME="your-gh-org"
REPO_NAME="your-gh-repo"
PROJECT_SLUG="github/${ORG_NAME}/${REPO_NAME}"
HEROKU_APP="your-heroku-app"

# List of variables to copy from Heroku to CircleCI
# to be stored in the project environment variables.
# Variables that are available in other CircleCI contexts
# don't need to be listed here, but duplicating here isn't a problem either.
VARS=(
  AWS_REGION
  SALESFORCE_CLIENT_ID
  SALESFORCE_CLIENT_SECRET
  SALESFORCE_PASSWORD
  SALESFORCE_URL
  SALESFORCE_USERNAME
  TRAILHEAD_ENV
)

for VAR in "${VARS[@]}"; do
  ENV_KEY="${VAR}"
  ENV_VAL=$(heroku config:get --app=${HEROKU_APP} ${ENV_KEY})
  RESULT=$(
    curl --silent --show-error --location \
      -X POST \
      -H "Circle-Token: ${CIRCLECI_API_TOKEN}" \
      -H "Content-Type: application/json" \
      -d '{ "name": "'"${ENV_KEY}"'", "value": "'"${ENV_VAL}"'" }' \
      "https://circleci.com/api/v2/project/${PROJECT_SLUG}/envvar"
  )
  echo $RESULT
done