ci: Add a test for synchronizing auto-deploy-app chart version

.semantic-release:

  image: node:12

  stage: release

  script:

    - npm install -g semantic-release @semantic-release/gitlab

    - semantic-release $DRY_RUN_OPT

release-tag:

  stage: release

publish:

  extends: .semantic-release

  before_script:

    - npm install -g semantic-release @semantic-release/gitlab

  script:

    - semantic-release

  rules:

    # Only protected branches on the official project

    - if: $CI_COMMIT_BRANCH && $CI_COMMIT_REF_PROTECTED == 'true' && $CI_PROJECT_PATH == 'gitlab-org/cluster-integration/auto-deploy-image' && $CI_API_V4_URL == "https://gitlab.com/api/v4"

publish-dryrun:

  extends: .semantic-release

  variables:

    DRY_RUN_OPT: '-d'

  before_script:

    - npm install -g semantic-release @semantic-release/gitlab

    - git fetch origin refs/merge-requests/$CI_MERGE_REQUEST_IID/merge:$CI_MERGE_REQUEST_TARGET_BRANCH_NAME

    - git checkout $CI_MERGE_REQUEST_TARGET_BRANCH_NAME

    # Overriding the variable that semantic-release runs on.

    # https://github.com/pvdlg/env-ci/blob/master/services/gitlab.js

    - export CI_COMMIT_REF_NAME=$CI_MERGE_REQUEST_TARGET_BRANCH_NAME

    - unset CI_MERGE_REQUEST_ID

  script:

    - semantic-release -d |tee output.log

    # Check if the bundled chart version matches the next auto-deploy-image version.

    - next_release_version=$(cat output.log | grep -oP "The next release version is \K.*$") || true

    - bundled_chart_version=$(cat assets/auto-deploy-app/Chart.yaml | grep -oP "version:\s*\K.*$")

    - echo "next_release_version is $next_release_version"

    - echo "bundled_chart_version is $bundled_chart_version"

    - |

      if [ -n "${next_release_version}" ] && [ -n "${bundled_chart_version}" ] && [ "${next_release_version}" != "${bundled_chart_version}" ]; then

        cat <<- EOS

      [WARN] auto-deploy-app chart version mismatch error.

      This merge request triggers to create a new release, auto-deploy-image ${next_release_version}.

      This version must be matched to the auto-deploy-app chart's version, however, currently it's set to ${bundled_chart_version}.

      Please set ${next_release_version} to the version column in assets/auto-deploy-app/Chart.yaml to resovle this error.

      EOS

      exit 1

      fi

  rules:

    - if: $CI_MERGE_REQUEST_IID && $CI_PROJECT_PATH == 'gitlab-org/cluster-integration/auto-deploy-image' && $CI_API_V4_URL == "https://gitlab.com/api/v4"

  needs: []