prune.yml

name: Prune GHCR

on:
  workflow_call:
    inputs:
      container:
        description: |
          The container image name to prune.
          If this isn't set, the `prune_images` job will be skipped.

          Example:

            `ghcr.io/Codertocat/Hello-World`
            -> `Hello-World`
        type: string
        required: false
      chart:
        description: |
          The chart oci image name to prune.
          If this isn't set, the `prune_charts` job will be skipped.

          Example:

            `ghcr.io/Codertocat/charts/Hello-World`
            -> `charts/Hello-World`
        type: string
        required: false
      keep-younger-than:
        description: The number of days to keep images
        type: number
        required: false
        default: 7
      prune-untagged:
        description: Whether to prune untagged images
        type: boolean
        required: false
        default: true

permissions:
  # Needed to delete images
  packages: write

jobs:
  prune_images:
    name: Prune old images
    runs-on: ubuntu-latest
    if: ${{ inputs.container }} != null

    steps:
      - name: Prune Images
        uses: vlaurin/action-ghcr-prune@v0.6.0
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          organization: ${{ github.repository_owner }}
          container: ${{ inputs.container }}
          keep-younger-than: ${{ inputs.keep-younger-than }}
          prune-untagged: ${{ inputs.prune-untagged }}
          # This is the default regex for semver tags (https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string)
          keep-tags-regexes: ^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
          prune-tags-regexes: |
            ^commit-

  prune_charts:
    name: Prune old charts
    runs-on: ubuntu-latest
    if: ${{ inputs.chart }} != null

    steps:
      - name: Prune Charts
        uses: vlaurin/action-ghcr-prune@v0.6.0
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          organization: ${{ github.repository_owner }}
          container: ${{ inputs.chart }}
          keep-younger-than: ${{ inputs.keep-younger-than }}
          prune-untagged: ${{ inputs.prune-untagged }}
          prune-tags-regexes: |
            commit-.*$