auto-assign.yml

name: Auto assign pull requests

on:
  pull_request:
    types:
      - opened

jobs:
  update_pr:
    runs-on: ubuntu-latest

    steps:
      - uses: tibdex/github-app-token@v2.1.0
        id: generate-token
        with:
          app_id: ${{ secrets.METABASE_BOT_APP_ID }}
          private_key: ${{ secrets.METABASE_BOT_APP_PRIVATE_KEY }}
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Assign author and their team. Returns true if team exists.
        id: auto-assign
        uses: actions/github-script@v7
        with:
          github-token: ${{ steps.generate-token.outputs.token }}
          script: |
            const fs = require('fs');
            const teamConfig = JSON.parse(fs.readFileSync('.github/team.json', 'utf-8'));
            const prAuthor = context.payload.pull_request.user.login;
            const prNumber = context.payload.pull_request.number;

            if (prAuthor.endsWith('[bot]')) {
              return null;
            }

            // Assign PR author
            await github.rest.issues.addAssignees({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
              assignees: [prAuthor]
            });

            const team = teamConfig.teams.find(t => t.members.includes(prAuthor));
            if (!team) {
              console.log('You are not assigned to any team. If you need one, update .github/team.json');
              return null;
            }

            try {
              const label = await github.rest.issues.getLabel({
                owner: context.repo.owner,
                repo: context.repo.repo,
                name: team.label
              });
            } catch (e) {
              console.log(`The label ${team.label} does not exist, create it first`);
              return null;
            }

            // Add team label
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
              labels: [team.label]
            });

            return team.projectUrl || null;
      - uses: actions/add-to-project@v0.5.0
        if: ${{ steps.auto-assign.outputs.result != 'null' }}
        with:
          project-url: ${{ steps.auto-assign.outputs.result }}
          github-token: ${{ steps.generate-token.outputs.token }}