check-changeset.yml

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# This workflow will check if a submitted PR has changesets.

name: 🦋 Check for Changeset

on:
  workflow_run:
    workflows: ["Receive PR"]
    types:
      - completed

env:
    GH_TOKEN: ${{ secrets.RELEASE_BOT_TOKEN }}

jobs:
  upload:
    runs-on: ubuntu-latest
    if: >
      github.event.workflow_run.event == 'pull_request' &&
      github.event.workflow_run.conclusion == 'success'
    steps:
      - name: 'Download artifact'
        uses: actions/github-script@v3.1.0
        with:
          script: |
            var artifacts = await github.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: ${{ github.event.workflow_run.id }},
            });
            var matchArtifact = artifacts.data.artifacts.filter((artifact) => {
              return artifact.name == "pr"
            })[0];
            var download = await github.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            var fs = require('fs');
            fs.writeFileSync('${{github.workspace}}/pr.zip', Buffer.from(download.data));
      - run: unzip pr.zip

      - name: 'Comment on PR'
        uses: actions/github-script@v3
        with:
          github-token: ${{ env.GH_TOKEN }}
          script: |
            var fs = require('fs');
            var issue_number = Number(fs.readFileSync('./NR'));
            await github.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: issue_number,
              body: `Everything is OK. Thank you for the PR #${issue_number}!`
            });