.github/actions/delete-cache/action.yml

name: 'Delete Cache'
description: 'Deletes a GitHub Actions cache by key using the GitHub API'
inputs:
  cache-key:
    required: true
    description: 'The cache key to delete'
  github-token:
    required: true
    description: 'GitHub token for API authentication'
runs:
  using: "composite"
  steps:
    - name: Delete cache
      uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
      env:
        CACHE_KEY: ${{ inputs.cache-key }}
      with:
        github-token: ${{ inputs.github-token }}
        script: |
          const owner = context.repo.owner;
          const repo = context.repo.repo;
          const key = process.env.CACHE_KEY;
          const ref = context.ref;
          
          core.info(`Attempting to delete cache: ${key}`);
          
          try {
            await github.rest.actions.deleteActionsCacheByKey({
              owner: owner,
              repo: repo,
              key: key,
              ref: ref
            });
            core.info(`Successfully deleted cache`);
          } catch (e) {
            if (e.status === 404) {
              core.info(`Cache not found (first run or already deleted)`);
            } else {
              core.warning(`Failed to delete cache: ${e.message}`);
            }
          }