GitHub Action to submit changed Urls to IndexNow

gistfile1.yaml

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Build Jekyll site
      - name: Generate CSV with MD5 Hashes
        run: |
          cd build
          find . -type f -exec md5sum {} + | sed 's/\.\///' | sort -t $'\t' -k 2 > file_hashes.csv
        working-directory: ${{ github.workspace }}
      - name: Upload artifacts

  deploy:
    needs: [build]
    runs-on: ubuntu-latest
    steps:
      - name: Fetch file_hashes.csv from S3
        id: fetch_file_hashes
        run: |
          aws s3 cp s3://${{ inputs.s3-bucket }}/file_hashes.csv prev_file_hashes.csv || touch prev_file_hashes.csv
          echo "content<<EOF" >> "$GITHUB_OUTPUT"
          cat prev_file_hashes.csv  >> "$GITHUB_OUTPUT"
          echo "EOF" >> "$GITHUB_OUTPUT"
          rm prev_file_hashes.csv
      - name: Sync to S3
      - name: Determine changed files
        id: changed_files
        run: |
          echo "changed_files<<EOF" >> "$GITHUB_OUTPUT"
          diff <(echo "$S3_FILE_HASHES") file_hashes.csv |  grep -E "^[<>]" | sed -E 's/^[<>] [0-9a-f]+[[:space:]]*//' | sort | uniq >> "$GITHUB_OUTPUT"
          echo "EOF" >> "$GITHUB_OUTPUT"
        env:
          S3_FILE_HASHES: ${{ steps.fetch_file_hashes.outputs.content }}
      - name: Call IndexNow API for changed file
        if: inputs.indexnow-api-key && inputs.hostname
        run: |
          for FILE in $CHANGED_FILES; do
            URL="https://${{ inputs.hostname }}/$FILE"
            REQUEST_URL="https://api.indexnow.org/indexnow?url=$URL&key=${{ inputs.indexnow-api-key }}"
            echo "Calling IndexNow API for file: $URL"
            curl -sS "$REQUEST_URL"
          done
        shell: bash
        env:
          CHANGED_FILES: ${{ steps.changed_files.outputs.changed_files }}