pr-labeler.yml

name: PR Labeler

on:
  push:
    branches: [main]
  pull_request:
    types: [opened, synchronize]

jobs:
  fingerprint:
    runs-on: ubuntu-latest
    concurrency: fingerprint-${{ github.event_name != 'pull_request' && 'main' || github.run_id }}
    permissions:
      pull-requests: write # Allow comments on PRs
      actions: write # Allow updating action caches
    steps:
      - name: 🏗 Setup repo
        uses: actions/checkout@v3

      - name: 🏗 Setup Node
        uses: actions/setup-node@v3
        with:
          node-version: 18.x
          cache: yarn

      - name: 📦 Install dependencies
        run: yarn install

      - name: Check fingerprint
        id: fingerprint
        uses: expo/expo-github-action/fingerprint@main

      - uses: actions/github-script@v6
        if: ${{ github.event_name == 'pull_request' && steps.fingerprint.outputs.fingerprint-diff == '[]' }}
        with:
          script: |
            try {
              await github.rest.issues.removeLabel({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: ['Fingerprint:changed']
              })
            } catch (e) {
              if (e.status != 404) {
                throw e;
              }
            }
            github.rest.issues.addLabels({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              labels: ['Fingerprint:compatible']
            })

      - uses: actions/github-script@v6
        if: ${{ github.event_name == 'pull_request' && steps.fingerprint.outputs.fingerprint-diff != '[]' }}
        with:
          script: |
            try {
              await github.rest.issues.removeLabel({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: ['Fingerprint:compatible']
              })
            } catch (e) {
              if (e.status != 404) {
                throw e;
              }
            }
            github.rest.issues.addLabels({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              labels: ['Fingerprint:changed']
            })