gcs_chart_publish_release.yml

name: Publish chart (release branch)

on:
  push:
    branches:
      - release/**
      - promote/release-**
    paths:
      - .github/workflows/gcs_chart_publish_release.yml
      - 'charts/**'
  workflow_dispatch:
    inputs:
      ref:
        type: string
        description: |
          BREAK GLASS ONLY. The branch to forcefully trigger a new release from
        required: false

env:
  HELM_VERSION: v3.4.0
  HELM_GCS_VERSION: 0.3.20 # https://github.com/hayorov/helm-gcs
  BUCKET_NAME: helm.sourcegraph.com
  BUCKET_PATH: release

jobs:
  release:
    name: helm
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        if: ${{ inputs.ref == '' }}
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Checkout (break glass)
        if: ${{ inputs.ref != '' }}
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ inputs.ref }}

      - name: Install Helm
        uses: azure/setup-helm@v1
        with:
          version: ${{ env.HELM_VERSION }}

      - name: Configure gcloud
        uses: google-github-actions/auth@v0
        with:
          credentials_json: ${{ secrets.GOOGLE_CLOUD_CREDENTIALS }}
          service_account: 'github-bot@sourcegraph-helm.iam.gserviceaccount.com'

      - name: Install helm-gcs
        run: helm plugin install https://github.com/hayorov/helm-gcs.git --version ${{ env.HELM_GCS_VERSION }}

      - name: Initialize helm chart
        run: helm gcs init gs://${{ env.BUCKET_NAME }}/${{ env.BUCKET_PATH }}

      - name: Set up helm repo
        run: helm repo add sg gs://${{ env.BUCKET_NAME }}/${{ env.BUCKET_PATH }}

      - name: Package Sourcegraph helm charts
        run: for i in charts/*; do [ -f "$i/Chart.yaml" ] && helm package -u $i; done
        
      - name: Package Sourcegraph executor helm charts
        run: for i in charts/sourcegraph-executor/*; do [ -f "$i/Chart.yaml" ] && helm package -u $i; done

      - name: Publish chart if it doesn't already exist in the repository
        run: |
          for i in *.tgz; do
            if gsutil ls gs://${{ env.BUCKET_NAME }}/${{ env.BUCKET_PATH }}/$i 2>/dev/null; then
              echo "Chart already published"
            else
              helm gcs push --public --publicUrl https://${{ env.BUCKET_NAME }}/${{ env.BUCKET_PATH }} $i sg
            fi;
          done