issue-auto-label.yml

name: Auto-label issues by component

on:
  issues:
    types: [opened]

jobs:
  auto-label:
    runs-on: ubuntu-latest
    permissions:
      issues: write
    steps:
      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
            const body = context.payload.issue.body || '';

            // Issue forms render dropdown values as:
            //   ### Component\n\n<value>\n
            const match = body.match(/### Component\s*\r?\n\r?\n(.+)/);
            if (!match) {
              console.log('No Component field found in issue body — skipping.');
              return;
            }

            const component = match[1].trim();

            // Canonical labels matching directories in this repo:
            //   A365              -> src/microsoft/opentelemetry/a365/
            //   Langchain         -> src/microsoft/opentelemetry/_genai/_langchain/
            //   Agent Framework   -> src/microsoft/opentelemetry/_agent_framework/
            //   Semantic Kernel   -> src/microsoft/opentelemetry/_semantic_kernel/
            //   Azure Monitor     -> src/microsoft/opentelemetry/_azure_monitor/
            //   Distro            -> src/microsoft/opentelemetry/ (top-level distro modules)
            const knownLabels = ['A365', 'Langchain', 'Azure Monitor', 'Distro', 'Agent Framework', 'Semantic Kernel'];
            const label = knownLabels.find(l => l.toLowerCase() === component.toLowerCase());
            if (!label) {
              console.log(`Component "${component}" does not map to a label — skipping.`);
              return;
            }

            console.log(`Adding label "${label}" to issue #${context.issue.number}`);
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              labels: [label],
            });