clean-up-unused-images.yaml

name: Clean Up Unused Images

on:
  schedule:
    # On the first of every month at 2 am
    - cron: '0 2 1 * *'
  workflow_dispatch:
  push:
      branches: ['clean-up-images-doc-1232']

concurrency:
  group: clean-up-images-${{ github.ref }}
  cancel-in-progress: true

jobs:
  find_unused_images:
    runs-on: ubuntu-latest

    steps:
      - name: Retrieve Credentials
        id: import-secrets
        uses: hashicorp/vault-action@v3.0.0
        with:
          url: https://vault.prism.spectrocloud.com
          method: approle
          roleId: ${{ secrets.VAULT_ROLE_ID }}
          secretId: ${{ secrets.VAULT_SECRET_ID }}
          secrets: /providers/github/organizations/spectrocloud/token?org_name=spectrocloud token | VAULT_GITHUB_TOKEN

      - id: checkout
        name: Checkout Repository
        uses: actions/checkout@v4
        with:
          token: ${{ steps.import-secrets.outputs.VAULT_GITHUB_TOKEN }}

      - name: Setup Nodejs
        uses: actions/setup-node@v4
        with:
          node-version: "20"
      
      - run: npm ci

      - name: Find unused images
        run: make find-unused-images

      - name: Set Git User
        # see: https://github.com/actions/checkout/issues/13#issuecomment-724415212
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"

      - name: Create PR with unused images
        run: |
          # Ensure that we are on master.
          git checkout master

          # Create a new branch.
          branch_name="clean-up-unused-images-$(date +%Y%m%d%H%M%S)"
          git checkout -b "$branch_name"

          # Remove all the images identified as unused.
          for img in $(cat unused_images.json); do
            rm static/assets/docs/images/$img
          done

          # Clean up results file.
          rm unused_images.json

          # Commit and push branch
          git add .
          git commit -m "docs: clean up unused images"
          git push origin $branch_name

          # Create the pull request
          echo -e '
          ## Describe the Change \n
          This PR removes images identified as unused across all our branches.\n 
          The images are identified using `scripts/find-unused-images.sh` script.\n
          Please review this PR carefully before merging it.\n' > pr_body

          export pr_body=$(cat pr_body) ; gh pr create --base master --title "docs: clean up librarium unused images " --body "$pr_body"
        env:
          GH_TOKEN: ${{ steps.import-secrets.outputs.VAULT_GITHUB_TOKEN }}