drush and jq hack

sample.sh

#!/bin/bash

# Danger, if you don't do this and 'drush status' fails for some other reason, the pipeline exits 0
# and thus tries to site-install again 
set -o pipelinefail

is_drupal_installed() {
    cd /app/web
    drush status --pipe | jq -e '.bootstrap == "Successful"' > /dev/null
}

## Much other code

# Do a drush site-install if needed
if ! is_drupal_installed
then
  cd /app/web
  yes | drush site-install --account-pass="$ADMIN_PASSWORD" --site-name="$SITE_NAME" "${DRUPAL_PROFILE:-standard}"
fi

## Much more code