#!/bin/bash

set -e

FLAGS=""
if [[ -n "${PLUGIN_DEPTH}" ]]; then
  FLAGS="--depth=${PLUGIN_DEPTH}"
fi

if [ ! -d .git ]; then
  git init
  git remote add origin "${DRONE_REMOTE_URL}"
fi

git fetch ${FLAGS} origin "+refs/heads/${DRONE_COMMIT_BRANCH}:"
git checkout "${DRONE_COMMIT_BRANCH}"

git fetch origin "${DRONE_COMMIT_REF}:"
git merge "${DRONE_COMMIT_SHA}"