preview-build-dev-app.yml

# This workflow builds the dev-app for pull requests when a certain label is applied.
# The actual deployment happens as part of a dedicated second workflow to avoid security
# issues where the building would otherwise occur in an authorized context where secrets
# could be leaked. More details can be found here:

# https://securitylab.github.com/research/github-actions-preventing-pwn-requests/.

name: Build dev-app for deployment

on:
  pull_request:
    types: [synchronize, labeled]

permissions: read-all

jobs:
  dev-app-build:
    runs-on: ubuntu-latest
    # We only want to build and deploy the dev-app if the `dev-app preview` label has been
    # added, or if the label is already applied and new changes have been made in the PR.
    if: |
      (github.event.action == 'labeled' && github.event.label.name == 'dev-app preview') ||
      (github.event.action == 'synchronize' && contains(github.event.pull_request.labels.*.name, 'dev-app preview'))
    steps:
      - name: Initialize environment
        uses: angular/dev-infra/github-actions/npm/checkout-and-setup-node@2113cd7f66a089ac0208ea84eee672b2529f4f6c
        with:
          cache-node-modules: true
      - name: Setup Bazel
        uses: angular/dev-infra/github-actions/bazel/setup@2113cd7f66a089ac0208ea84eee672b2529f4f6c
      - name: Setup Bazel RBE
        uses: angular/dev-infra/github-actions/bazel/configure-remote@2113cd7f66a089ac0208ea84eee672b2529f4f6c

      # Build the web package
      - run: bazel build //src/dev-app:web_package --symlink_prefix=dist/

      - uses: angular/dev-infra/github-actions/previews/pack-and-upload-artifact@2113cd7f66a089ac0208ea84eee672b2529f4f6c
        with:
          workflow-artifact-name: 'dev-app'
          pull-number: '${{github.event.pull_request.number}}'
          artifact-build-revision: '${{github.event.pull_request.head.sha}}'
          deploy-directory: './dist/bin/src/dev-app/web_package/'