Issue #3401971 by fjgarlin: Test-only job shouldn't require constant rebases...

    - git fetch -vn --depth=3 "$CI_MERGE_REQUEST_PROJECT_URL" "+refs/heads/$TARGET_BRANCH:refs/heads/$TARGET_BRANCH"

    - |

      echo "ℹ️ Changes from ${TARGET_BRANCH}"

      git diff refs/heads/${TARGET_BRANCH} --name-only

      git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --name-only

      echo "If this list contains more files than what you changed, then you need to rebase your branch."

      echo "1️⃣ Reverting non test changes"

      if [[ $(git diff refs/heads/${TARGET_BRANCH} --diff-filter=DM --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh) ]]; then

        git diff refs/heads/${TARGET_BRANCH} --diff-filter=DM --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh|while read file;do

      if [[ $(git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --diff-filter=DM --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh) ]]; then

        git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --diff-filter=DM --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh|while read file;do

          echo "↩️ Reverting $file";

          git checkout refs/heads/${TARGET_BRANCH} -- $file;

        done

      fi

      if [[ $(git diff refs/heads/${TARGET_BRANCH} --diff-filter=A --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh) ]]; then

        git diff refs/heads/${TARGET_BRANCH} --diff-filter=A --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh|while read file;do

      if [[ $(git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --diff-filter=A --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh) ]]; then

        git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --diff-filter=A --name-only|grep -Ev "Test.php$"|grep -v .gitlab-ci|grep -v scripts/run-tests.sh|while read file;do

          echo "🗑️️ Deleting $file";

          git rm $file;

        done

      fi

      echo "2️⃣ Running test changes for this branch"

      if [[ $(git diff refs/heads/${TARGET_BRANCH} --name-only|grep -E "Test.php$") ]]; then

        for test in `git diff refs/heads/${TARGET_BRANCH} --name-only|grep -E "Test.php$"`; do

      if [[ $(git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --name-only|grep -E "Test.php$") ]]; then

        for test in `git diff ${CI_MERGE_REQUEST_DIFF_BASE_SHA} --name-only|grep -E "Test.php$"`; do

          sudo SIMPLETEST_BASE_URL="$SIMPLETEST_BASE_URL" SIMPLETEST_DB="$SIMPLETEST_DB" MINK_DRIVER_ARGS_WEBDRIVER="$MINK_DRIVER_ARGS_WEBDRIVER" -u www-data ./vendor/bin/phpunit -c core $test --log-junit=./sites/default/files/simpletest/phpunit-`echo $test|sed 's/\//_/g' `.xml;

        done;

      fi