validate.yaml

name: Chart Version Check

on:
  pull_request:

jobs:
  check-release:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - name: checkout code
        uses: actions/checkout@v3

      - name: check chart release
        shell: bash
        run: |
          file="charts/orb/Chart.yaml"
          while IFS= read -r line
          do
            if [[ $line =~ (^version: ([A-Za-z0-9]+(\.[A-Za-z0-9]+)+)$) ]]; then              
                echo "VERSION=${BASH_REMATCH[2]}" >> $GITHUB_ENV
            fi
          done <"$file"

      - uses: mukunku/tag-exists-action@v1.3.0
        id: checkTag
        with: 
          tag: 'orb-${{ env.VERSION }}'
      
      - name: "check failed"
        if: ${{ steps.checkTag.outputs.exists == 'true' }}
        run: |
              echo "ERROR - version already released: '${{ env.VERSION }}'"
              echo "Please choose a helm chart version number that never was launched on Chart.yaml"
              exit 1