.gitlab-ci.yml

stages:
  - deploy

variables:
  # Branches to mirror to GitHub. Edit this list as needed.
  MIRROR_BRANCHES: "master newscope audioprocessing accessibility"

mirror-to-github:
  stage: deploy
  variables:
    GIT_DEPTH: "0"
  rules:
    - if: $CI_COMMIT_BRANCH
  image:
    name: alpine/git:latest
    entrypoint: [""]
  script:
    - |
      # Check if current branch is in the mirror list
      SHOULD_MIRROR=false
      for BRANCH in $MIRROR_BRANCHES; do
        if [ "$CI_COMMIT_BRANCH" = "$BRANCH" ]; then
          SHOULD_MIRROR=true
          break
        fi
      done

      if [ "$SHOULD_MIRROR" = "false" ]; then
        echo "Branch '$CI_COMMIT_BRANCH' is not in mirror list, skipping."
        exit 0
      fi

      echo "Mirroring branch '$CI_COMMIT_BRANCH' to GitHub..."

      GITHUB_URL="https://x-access-token:${GITHUB_PAT}@github.com/eliggett/wfview.git"

      # Set up git identity (required for some git operations)
      git config user.email "ci@mirror"
      git config user.name "GitLab Mirror"

      # Check if the original commit has a tag before we rewrite history
      ORIGINAL_TAG=$(git tag --points-at "$CI_COMMIT_SHA" | head -1)
      if [ -n "$ORIGINAL_TAG" ]; then
        echo "Found tag '$ORIGINAL_TAG' on commit $CI_COMMIT_SHA"
      else
        echo "No tag on this commit."
      fi

      # Create orphan branch with the current tree
      git checkout --orphan mirror_branch
      git add -A
      git commit -m "Mirror of $CI_COMMIT_SHORT_SHA"

      # If the original commit had a tag, recreate it on the new commit
      PUSH_REFS="HEAD:refs/heads/$CI_COMMIT_BRANCH"
      if [ -n "$ORIGINAL_TAG" ]; then
        git tag -f "$ORIGINAL_TAG" HEAD
        PUSH_REFS="$PUSH_REFS refs/tags/$ORIGINAL_TAG"
        echo "Tag '$ORIGINAL_TAG' applied to mirrored commit."
      fi

      # Push branch (and tag if present) to GitHub in one operation
      git push --force --no-thin "$GITHUB_URL" $PUSH_REFS

      echo "Done."