populate_cache.yml

# This is a basic workflow to help you get started with Actions

name: Populate Cache

# Controls when the workflow will run
on:
  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  populate-cache:
    continue-on-error: true
    strategy:
      matrix:
        build-config: [gcc, clang]
    # The type of runner that the job will run on
    runs-on: ubuntu-22.04

    env:
      cache_secret_file: cache_auth.json
      cache_url: https://storage.googleapis.com/robot-research-bazel-cache
      cache_auth: ${{ secrets.BAZEL_CACHE_BASE64 }}

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      - name: Fetch Secrets
        run: |
          echo ${{ env.cache_auth }} | base64 --decode > ${{ runner.temp }}/${{ env.cache_secret_file }}

      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - name: Checking out  ${{ github.sha }}
        uses: actions/checkout@v3
        with:
          lfs: true

      # Runs a set of commands using the runners shell
      - name: Setup Dependencies
        run: |
          ./setup.sh

      - name: Build OpenCV
        run: |
          bazel build --config=${{ matrix.build-config }} --remote_cache=${{ env.cache_url }} --google_credentials=${{ runner.temp }}/${{ env.cache_secret_file }} @opencv