minecraft-crash-reported-upstream-check.yml

name: Add Minecraft upstream label
on:
  issue_comment:
    types: [created, edited]

permissions:
  issues: write

jobs:
  check-reported-upstream:
    runs-on: ubuntu-latest
    steps:
      - name: Check reported upstream
        # Ignore pull request comments, see
        # https://docs.github.com/en/actions/learn-github-actions/events-that-trigger-workflows#issue_comment
        if: ${{ !github.event.issue.pull_request }}
        uses: actions/github-script@v7
        with:
          script: |
            // See documentation for payload properties
            // https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#issue_comment
            const issue = context.payload.issue

            const sender = context.payload.sender.login

            if (issue.user.login !== sender) {
              core.info('Ignoring comment by user other than author')
              return
            }

            const reportedUpstreamLabel = 'Reported Upstream'
            const issueLabels = issue.labels.map(label => label.name)

            if (issueLabels.includes(reportedUpstreamLabel)) {
              core.info('Ignoring issue because it already has upstream label')
              return
            }
            if (!issueLabels.includes('Minecraft')) {
              core.info('Ignoring issue because it is not labeled as Minecraft')
              return
            }

            const commentBody = context.payload.comment.body
            // Check if comment mentions Mojira issue key, e.g. MC-123456, but not MC-123456 itself,
            // because it is in the instructions posted by the `minecraft-crash.yml` workflow and
            // can be quoted in comments
            const matchedMojiraIssueKey = /(?<!\w)MC-\d{6,}(?!\w)(?<!MC-123456)/i.exec(commentBody)

            if (matchedMojiraIssueKey === null) {
              core.info('Did not find Mojira issue key in comment')
            }
            else {
              core.notice(`Found Mojira issue key ${matchedMojiraIssueKey[0]}, adding label`)

              const owner = context.repo.owner
              const repo = context.repo.repo
              github.rest.issues.addLabels({
                owner: owner,
                repo: repo,
                issue_number: issue.number,
                labels: [reportedUpstreamLabel]
              })
            }