bamboo-compatibility-check.yml

name: 'Bamboo compatibility update check'

on:
  schedule:
    # Monday 8am AEST (Sunday 10pm UTC)
    - cron: '0 22 * * 0'
  
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
  GH_TOKEN: ${{ secrets.BAMBOO_GITHUB_ACTIONS_TOKEN }}
  GITHUB_TOKEN: ${{ secrets.BAMBOO_GITHUB_ACTIONS_TOKEN }}

jobs:
  check-for-update:
    name: 'Check if new version of Bamboo has been released'
    runs-on: 'ubuntu-latest'

    outputs:
      current-compatible-version: ${{ steps.version-check.outputs.current-compatible-version }}
      latest-bamboo-version: ${{ steps.version-check.outputs.latest-bamboo-version }}

    steps:
      - uses: actions/checkout@v4

      - name: 'Check for new version of Bamboo'
        id: version-check
        run: |
          # get the version our plugin is compatible with
          currentCompatibleVersion=$(curl -sS -X GET https://marketplace.atlassian.com/rest/2/addons/com.octopus.bamboo/versions/latest | jq -r '.compatibilities[0].hosting.server.max.version')
          # get latest available version of Bamboo
          latestBambooVersion=$(curl -sS -X GET https://marketplace.atlassian.com/rest/2/products/key/bamboo/versions/latest | jq -r '.name')

          if [ "$currentCompatibleVersion" == "$latestBambooVersion" ]
          then
            # no update required, bail out of workflow run early
            echo "No update required, cancelling this run"
            gh run cancel ${{ github.run_id }}
          fi

          echo "current-compatible-version=$currentCompatibleVersion" >> $GITHUB_OUTPUT
          echo "latest-bamboo-version=$latestBambooVersion" >> $GITHUB_OUTPUT

  create-issue:
    name: 'Create issue'
    runs-on: 'ubuntu-latest'

    needs: check-for-update

    outputs:
      gh-issue-url: ${{ steps.create-or-update-issue.outputs.issue-url }}

    steps:
      - uses: actions/checkout@v4

      - name: 'Create or Update Issue for new Bamboo version'
        id: create-or-update-issue
        run: |
          compatibleBambooVersion=${{ needs.check-for-update.outputs.current-compatible-version }}
          latestBambooVersion=${{ needs.check-for-update.outputs.latest-bamboo-version }}
          
          issueTitle="Add-on Update Request: Support for Bamboo version $latestBambooVersion"
          issueBody=$(cat << EOF
          ## Add-on compatibility update
          - **Compatible Bamboo version:** \`$compatibleBambooVersion\`
          - **New Bamboo version:** \`$latestBambooVersion\`
          EOF
          )

          existingIssue=$(gh issue list -q 'map(select(.title | startswith("Add-on Update Request:") ) ) | first' --json title,number | jq '.number')

          # if there's no existing issue
          if [ -z "$existingIssue" ] 
          then
            # create an issue and assign it to @team-integrations-fnm-bot
            issueUrl=$(gh issue create --title "$issueTitle" --body "$issueBody" --assignee "@me")
          else
            # update existing issue with new compatibility details
            issueUrl=$(gh issue edit $existingIssue --title "$issueTitle" --body "$issueBody")
          fi
          echo "issue-url=$issueUrl" >> $GITHUB_OUTPUT

  update-pom:
    name: 'Update POM.xml'
    runs-on: 'ubuntu-latest'

    needs: [check-for-update, create-issue]
    if: ${{ needs.create-issue.outputs.gh-issue-url != '' }}

    outputs:
      changes-committed: ${{ steps.commit-pom-update.outputs.changes-committed }}
      branch: ${{ steps.commit-pom-update.outputs.branch-name }}

    steps:
      - uses: actions/checkout@v4

      - name: 'Update Bamboo version in POM.xml and commit the changes'
        id: commit-pom-update
        run: |
          bambooVersion="${{ needs.check-for-update.outputs.latest-bamboo-version }}"
          branchName="team-integrations-fnm-bot/bamboo-$bambooVersion"
          
          git config --global user.name "team-integrations-fnm-bot"
          git config --global user.email "integrationsfnmbot@octopus.com"
          git checkout -b $branchName
          
          # Update the version in the <bamboo.version> and <bamboo.data.version> properties
          sed -i "s/\(^.*<bamboo\(.data\)\?.version>\).*\(<\/bamboo\(.data\)\?.version>.*$\)/\1$bambooVersion\3/g" pom.xml

          git add pom.xml
          # if no changes were made, just silently exit
          git diff-index --quiet HEAD || (git commit -m "fix: update compatible bamboo version" \
            && git push -u origin $branchName \
            && echo "changes-committed=true" >> $GITHUB_OUTPUT \
            && echo "branch-name=$branchName" >> $GITHUB_OUTPUT \
          )

  create-pull-request:
    name: 'Create PR'
    runs-on: 'ubuntu-latest'

    needs: [check-for-update, create-issue, update-pom]
    if: ${{ needs.update-pom.outputs.changes-committed }}

    steps:
      - uses: actions/checkout@v4

      - name: 'Close any existing PR for Bamboo version update'
        id: existing-pr-check
        run: |
          existingPr=$(gh pr list -q 'map(select(.title | startswith("Add compatibility for Bamboo version") ) ) | first' --json title,number | jq '.number')

          if [ "$existingPr" ]
          then
            # existing pr is for a different Bamboo version, closing existing pr and a new pr will be created
            gh pr close $existingPr --comment "Closing PR in favor of new PR for Bamboo version ${{ needs.check-for-update.outputs.bamboo-version }}" --delete-branch
          fi

      - name: 'Create PR to update Bamboo version in POM.xml'
        run: |
          title="Add compatibility for Bamboo version ${{ needs.check-for-update.outputs.latest-bamboo-version }}"
          body="Fixes ${{ needs.create-issue.outputs.gh-issue-url }}"
          head="${{ needs.update-pom.outputs.branch }}"
          
          gh pr create --title "$title" --body "$body" --base "${{ github.ref }}" --head "$head"