action.yml

name: 'Helm Chart Repo (ghcr.io)'
description: 'Turn your repo with charts into a Helm charts repo on GitHub Container Registry, ghcr.io (OCI-based). Works on private repos.'
branding:
  icon: 'anchor'
  color: 'blue'
inputs:
  chartsPath:
    description: 'The path where to find the charts. Usually either "charts/" or "./". Must end with a slash.'
    required: false
    default: './'
  token:
    description: 'GitHub Token {{ secrets.GITHUB_TOKEN }} with the privilege set to write packages.'
    required: true
runs:
  using: "composite"
  steps:

    - name: Package Helm Charts
      shell: bash
      run: |
        find ${CHARTS_PATH} -type f -name 'Chart.yaml' | sed -r 's|/[^/]+$||' | sort | uniq | xargs --verbose -L 1 helm dep up
        for d in ${CHARTS_PATH}*/ ; do
            if [[ ! -f "${d}Chart.yaml" ]]; then
                echo "${d}Chart.yaml not found. Skipping."
                continue
            fi
            echo "$d"
            helm package "$d" -u -d dist
        done
      env:
        CHARTS_PATH: ${{ inputs.chartsPath }}

    - name: Login to GitHub Container Registry
      shell: bash
      run: echo "${GITHUB_TOKEN}" | helm registry login ${REGISTRY} --username ${GITHUB_ACTOR} --password-stdin
      env:
        REGISTRY: "ghcr.io/${{ github.repository }}"
        GITHUB_TOKEN: ${{ inputs.token }}

    - name: Push Helm Charts to Github Container Registry (OCI)
      shell: bash
      working-directory: dist
      run: |
        for f in *.tgz ; do
            echo "$f"
            helm push $f oci://${REGISTRY,,}
        done
      env:
        REGISTRY: "ghcr.io/${{ github.repository }}"