variables:
  - &node_image 'node:16-alpine'
  - &when_path
    - "docs/**"
    - ".woodpecker/docs.yml"

pipeline:
  build:
    image: *node_image
    commands:
      - cd docs/
      - yarn install --frozen-lockfile
      - yarn build
    when:
      event: [push, pull_request]
      path: *when_path

  deploy-preview:
    image: woodpeckerci/plugin-surge-preview:next
    settings:
      path: "docs/build/"
      surge_token:
        from_secret: SURGE_TOKEN
      forge_type: github
      forge_url: "https://github.com"
      forge_repo_token:
        from_secret: GITHUB_TOKEN_SURGE
    when:
      event: pull_request
      path: *when_path

  # TODO: add step to remove preview again after PR is closed (waiting for #286)

  deploy:
    image: alpine:3.14.2
    secrets:
      - BOT_PRIVATE_KEY
    commands:
      - apk add openssh-client git rsync
      - mkdir -p $HOME/.ssh
      - ssh-keyscan -t rsa github.com >> $HOME/.ssh/known_hosts
      - echo "$BOT_PRIVATE_KEY" > $HOME/.ssh/id_rsa
      - chmod 0600 $HOME/.ssh/id_rsa
      - git config --global user.email "woodpecker-bot@obermui.de"
      - git config --global user.name "woodpecker-bot"
      - git clone -b ${CI_REPO_DEFAULT_BRANCH} --single-branch git@github.com:woodpecker-ci/woodpecker-ci.github.io.git /repo
      # copy all docs files and delete all old ones, but leave CNAME and index.yaml untouched
      - rsync -r --exclude .git --exclude CNAME --exclude index.yaml --exclude README.md --delete docs/build/ /repo
      - cd /repo
      - git add .
      # exit successfully if nothing changed
      - test -n "$(git status --porcelain)" || exit 0
      - git commit -m "Deploy website - based on ${CI_COMMIT_SHA}"
      - git push
    when:
      event: push
      branch: ${CI_REPO_DEFAULT_BRANCH}
      path: *when_path