.github/actions/bootstrap/action.yaml

name: Bootstrap
description: Bootstrap
inputs:
  platform:
    description: "Platform name"
    required: false
    default: none
  bootstrap-log-name:
    description: "Bootstrap log name"
    required: false
    default: bootstrap-logs-${{ github.job }}
outputs:
  cache-hit:
    description: "Bootstrap environment was restored from cache"
    value: ${{ fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit }} # retry returns all outputs in `outputs`

runs:
  using: "composite"
  steps:
    - name: Calculate bootstrap cache key
      id: bootstrap-cache-key
      shell: bash
      run: |
        # Calculate bootstrap cache key
        # In addition to the various setup files, the work directory matters as well,
        # because the bootstrapped Pigweed environment contains absolute paths.
        FILES_HASH="${{ hashFiles('scripts/setup/*', 'third_party/pigweed/**') }}"
        FINAL_HASH="$(echo "$PWD:$FILES_HASH" | shasum -a 256 | cut -d' ' -f1)"
        echo "Calculated bootstrap cache key for '$PWD': $FINAL_HASH"
        echo "hash=$FINAL_HASH" >> "$GITHUB_OUTPUT"

    - uses: Wandalen/wretry.action@v1.4.10
      name: Bootstrap from cache
      id: bootstrap-cache
      continue-on-error: true
      with:
        action: buildjet/cache@v4
        attempt_limit: 3
        attempt_delay: 2000
        with: |
          key: ${{ runner.os }}-${{ runner.arch }}-${{ inputs.platform }}-${{ steps.bootstrap-cache-key.outputs.hash}}
          path: |
              .environment
              build_overrides/pigweed_environment.gni

    - name: Run bootstrap
      if: fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit != 'true'
      env:
        PW_NO_CIPD_CACHE_DIR: Y
      shell: bash
      run: source scripts/bootstrap.sh -p all,${{ inputs.platform }}

    - name: Uploading bootstrap logs
      uses: actions/upload-artifact@v4
      if: always() && !env.ACT && fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit != 'true'
      with:
        name: ${{ inputs.bootstrap-log-name }}
        path: |
          .environment/gn_out/.ninja_log
          .environment/pigweed-venv/*.log