release.yaml

name: Release Charts

on:
  push:
    branches:
      - main
    paths:
      - 'charts/**'

permissions:
  contents: write
  packages: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Install Helm
        uses: azure/setup-helm@v4
        with:
          # renovate: datasource=github-tags depName=helm/helm
          version: v3.16.2

      - name: Retrieve version from Chart.yaml
        id: chart_version
        run: |
          echo "version=$(yq '.version' charts/jenkins/Chart.yaml)" >> "${GITHUB_OUTPUT}"

      - name: Extract version changelog
        id: version_changelog
        env:
          VERSION: ${{ steps.chart_version.outputs.version }}
        run: |
          changelog=$(awk -v version="${VERSION}" '
          /^(##|###) [0-9]+.[0-9]+.[0-9]+/ {
              if (p) { exit };
              if ($2 == version) {
                  p = 1; next
              }
          } p
          ' charts/jenkins/CHANGELOG.md)

          delimiter="$(openssl rand -hex 8)"
          # shellcheck disable=SC2129
          echo "changelog<<${delimiter}" >> "${GITHUB_OUTPUT}"
          echo "${changelog}" >> "${GITHUB_OUTPUT}"
          echo "${delimiter}" >> "${GITHUB_OUTPUT}"

      - name: Annotate Chart.yaml with current version changelog
        if: steps.version_changelog.outputs.changelog != ''
        env:
          CHANGELOG: ${{ steps.version_changelog.outputs.changelog }}
        run: |
          # Changelog sanitation
          # shellcheck disable=SC2016
          proper_changelog=$(echo "${CHANGELOG}" \
          | grep -v '^$' `# remove empty lines` \
          | grep -v '^|' `# remove table lines` \
          | iconv -c -f utf8 -t ascii `# remove non ascii characters like emoji` \
          | sed 's/^/- /' `# add a dash in front of every line` \
          | sed 's/  / /') # double spaces

          # Add new line to ensure scalar value in Chart.yaml
          printf -v change '%s\n' "${proper_changelog}"

          # Update chart annotations using strenv operator (https://mikefarah.gitbook.io/yq/operators/string-operators#string-blocks-bash-and-newlines)
          CHANGE="${change}" yq --inplace ".annotations.\"artifacthub.io/changes\" = strenv(CHANGE)" charts/jenkins/Chart.yaml

      - name: Show updated Chart.yaml
        run: |
          yq charts/jenkins/Chart.yaml

      - name: Run chart-releaser
        id: chart_releaser
        uses: helm/chart-releaser-action@v1.6.0
        env:
          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

      - name: Push Chart to GHCR
        run: |
          for pkg in .cr-release-packages/*; do
            if [ -z "${pkg:-}" ]; then
              break
            fi
            helm push "${pkg}" oci://ghcr.io/jenkinsci/helm-charts
          done

      - name: Retrieve release info
        id: release_info
        if: steps.chart_releaser.outputs.changed_charts != ''
        env:
          LAST_TAG: "jenkins-${{ steps.chart_version.outputs.version }}"
          REPOSITORY: ${{ github.repository }}
        run: |
          release=$(curl -L "https://api.github.com/repos/${REPOSITORY}/releases/tags/${LAST_TAG}")

          echo "id=$(echo "${release}" | jq '.id')" >> "${GITHUB_OUTPUT}"

          delimiter="$(openssl rand -hex 8)"
          # shellcheck disable=SC2129
          echo "body<<${delimiter}" >> "${GITHUB_OUTPUT}"
          echo "${release}" | jq --raw-output '.body' >> "${GITHUB_OUTPUT}"
          echo "${delimiter}" >> "${GITHUB_OUTPUT}"

      - name: Update release description
        id: update_release
        if: steps.chart_releaser.outputs.changed_charts != ''
        uses: actions/github-script@v7
        env:
          ID: ${{ steps.release_info.outputs.id }}
          BODY: ${{steps.release_info.outputs.body}}
          CHANGELOG: ${{steps.version_changelog.outputs.changelog}}
        with:
          script: |
            try {
              await github.rest.repos.updateRelease({
                release_id: process.env.ID,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: process.env.BODY + "\r\n\r\n## Changelog" + process.env.CHANGELOG,
              });
            } catch (error) {
              core.setFailed(error.message);
            }