.github/workflows/preview.yaml

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# Licensed to the Apache Software Foundation (ASF) under one or more
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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
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# the License.  You may obtain a copy of the License at
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#      http://www.apache.org/licenses/LICENSE-2.0
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name: Publish preview

on:
  workflow_run:
    workflows: ["Pull request checks"]
    types:
      - completed

jobs:
  preview:
    runs-on: ubuntu-latest
    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Download pull request artifact
        uses: actions/github-script@v4
        with:
          script: |
            const artifacts = await github.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: ${{ github.event.workflow_run.id }},
            });
            const websiteArtifact = artifacts.data.artifacts.filter((artifact) => {
              return artifact.name == 'website'
            })[0];
            var download = await github.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: websiteArtifact.id,
               archive_format: 'zip',
            });
            const fs = require('fs');
            fs.writeFileSync('${{github.workspace}}/website.zip', Buffer.from(download.data));
      - name: Unzip website artifact
        run: unzip -q website.zip
      - name: Preview on Netlify
        env:
          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}
        run: |
          DEPLOY_URL=$(yarn preview:netlify --alias="pr-$(cat pull_request/number)" --message="Preview for $(cat pull_request/html_url)" --json 2> /dev/null |jq -r .deploy_url)
          echo "DEPLOY_URL=${DEPLOY_URL}" >> $GITHUB_ENV
          echo "ISSUE_NUMBER=$(cat pull_request/number)" >> $GITHUB_ENV
      - uses: actions/github-script@v3
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            github.issues.createComment({
              issue_number: Number(process.env.ISSUE_NUMBER),
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `🚀 Preview is available at ${process.env.DEPLOY_URL}`
            })