requeue-evaluation.yml

name: Requeue Evaluation

on:
  workflow_call:
    inputs:
      workflow-file:
        description: "The workflow file to requeue"
        required: true
        type: string
      repeat:
        description: "Current repeat count"
        required: true
        type: string
      workflow-inputs:
        description: "JSON string of workflow inputs to pass (excluding repeat)"
        required: true
        type: string
      existing-tag:
        description: "Ephemeral tag already created earlier in the run (avoids re-creating it at requeue time)"
        required: false
        default: ""
        type: string

permissions:
  contents: write
  actions: write

jobs:
  requeue-if-needed:
    runs-on: ubuntu-latest
    if: ${{ inputs.repeat != '1' }}
    steps:
      - name: Reuse tag for requeue
        env:
          GH_TOKEN: ${{ github.token }}
          INPUTS_JSON: ${{ inputs.workflow-inputs }}
        run: |
          REF="${{ github.ref }}"

          if [[ "${REF}" == refs/tags/eval-run-* ]]; then
            # Already running from an ephemeral tag: reuse it
            TAG_NAME="${{ github.ref_name }}"
            echo "Reusing existing ephemeral tag: ${TAG_NAME}"
          elif [[ -n "${{ inputs.existing-tag }}" ]]; then
            # A tag was already created earlier in this run (see the pin-commit job)
            TAG_NAME="${{ inputs.existing-tag }}"
            echo "Using previously created ephemeral tag: ${TAG_NAME}"
          else
            echo "No ephemeral tag is available for requeue."
            exit 1
          fi

          # Build the workflow dispatch command with inputs from JSON
          NEXT_REPEAT=$(( ${{ inputs.repeat }} - 1 ))

          # Build the arguments array safely (handles spaces and special chars)
          ARGS=()
          while IFS= read -r line; do
            key="${line%%=*}"
            value="${line#*=}"
            ARGS+=("-f" "${key}=${value}")
          done < <(printf '%s' "${INPUTS_JSON}" | jq -r 'to_entries[] | select(.value != null) | "\(.key)=\(.value)"')

          # Trigger the workflow using the tag as ref
          gh workflow run ${{ inputs.workflow-file }} \
            --repo ${{ github.repository }} \
            --ref "${TAG_NAME}" \
            -f repeat="${NEXT_REPEAT}" \
            "${ARGS[@]}"

  cleanup-ephemeral-tag:
    runs-on: ubuntu-latest
    if: ${{ inputs.repeat == '1' }}
    steps:
      - name: Delete ephemeral tag if running from one
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          REF="${{ github.ref }}"
          if [[ "${REF}" == refs/tags/eval-run-* ]]; then
            TAG_NAME="${{ github.ref_name }}"
            echo "Cleaning up ephemeral tag: ${TAG_NAME}"
            gh api repos/${{ github.repository }}/git/refs/tags/${TAG_NAME} \
              --method DELETE || echo "Tag deletion failed or already deleted"
          else
            echo "Not running from an ephemeral tag (ref: ${REF}), skipping cleanup"
          fi