pr-comment-on-trigger.yml

name: pr-comment-on-trigger

on:
  workflow_run:
    workflows: ["pr-trigger-workflow-in-main"]
    types: [completed]

jobs:
  notify:
    name: pr-comment-on-trigger
    runs-on: ubuntu-latest
    env:
      ARTIFACT_FOLDER: '${{ github.workspace }}/tmp'
      ARTIFACT_NAME: 'message'

    steps:
    - name: 'Download artifact'
      uses: actions/github-script@v5
      with:
        script: |
          const fs = require('fs');

          const { owner, repo } = context.repo;
          const runId = "${{ github.event.workflow_run.id }}";
          const artifactName = process.env.ARTIFACT_NAME;
          const artifactFolder = process.env.ARTIFACT_FOLDER;
          const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
              owner,
              repo,
              run_id: runId,
          });
          const artifact = artifacts.data.artifacts.find(a => a.name === artifactName);
        
          if (!artifact) {
              throw new Error(`Could not find artifact ${ artifactName } in workflow (${ runId })`);
          }

          const download = await github.rest.actions.downloadArtifact({
              owner,
              repo,
              artifact_id: artifact.id,
              archive_format: 'zip',
          });

          fs.mkdirSync(artifactFolder, { recursive: true });
          fs.writeFileSync(`${ artifactFolder }/${ artifactName }.zip`, Buffer.from(download.data));
  
    - name: Unzip artifact
      run: unzip "${ARTIFACT_FOLDER}/${ARTIFACT_NAME}.zip" -d "${ARTIFACT_FOLDER}"

    - name: Parse artifact
      id: parse-artifact
      uses: actions/github-script@v5
      with:
        script: |
          const fs = require('fs');

          const artifactFolder = process.env.ARTIFACT_FOLDER;
          const content = fs.readFileSync(`${ artifactFolder }/result.json`);
          const result = JSON.parse(content);

          for (const property in result) {
              core.setOutput(property, result[property]);
          }

    - name: Comment on PR
      uses: marocchino/sticky-pull-request-comment@v2
      with:
        number: ${{ github.event.workflow_run.pull_requests[0].number }}
        message: |
          ${{steps.parse-artifact.outputs.message}}