prepare_deploy_env.sh

# This script creates/updates credentials.json file which is used
# to authorize publisher when publishing packages to pub.dev
# Source: https://birju.dev/posts/publish-your-flutter-package-using-github-actions/

# Checking whether the secrets are available as environment
# variables or not.
if [ -z "${PUB_DEV_PUBLISH_ACCESS_TOKEN}" ]; then
  echo "Missing PUB_DEV_PUBLISH_ACCESS_TOKEN environment variable"
  exit 1
fi

if [ -z "${PUB_DEV_PUBLISH_REFRESH_TOKEN}" ]; then
  echo "Missing PUB_DEV_PUBLISH_REFRESH_TOKEN environment variable"
  exit 1
fi

if [ -z "${PUB_DEV_PUBLISH_TOKEN_ENDPOINT}" ]; then
  echo "Missing PUB_DEV_PUBLISH_TOKEN_ENDPOINT environment variable"
  exit 1
fi

if [ -z "${PUB_DEV_PUBLISH_EXPIRATION}" ]; then
  echo "Missing PUB_DEV_PUBLISH_EXPIRATION environment variable"
  exit 1
fi

# Create credentials.json file.
mkdir -p $HOME/.config/dart
cat <<EOF > $HOME/.config/dart/pub-credentials.json
{
  "accessToken":"${PUB_DEV_PUBLISH_ACCESS_TOKEN}",
  "refreshToken":"${PUB_DEV_PUBLISH_REFRESH_TOKEN}",
  "tokenEndpoint":"${PUB_DEV_PUBLISH_TOKEN_ENDPOINT}",
  "idToken":"${PUB_DEV_PUBLISH_TOKEN_ID}",
  "scopes":["https://www.googleapis.com/auth/userinfo.email","openid"],
  "expiration":${PUB_DEV_PUBLISH_EXPIRATION}
}
EOF