label.yml

name: Label issues

on:
  issues:
    types:
      - opened
      - reopened

jobs:
  label_issues:
    name: "Issue: add labels"
    if: ${{ github.event.action == 'opened' || github.event.action == 'reopened' }}
    runs-on: ubuntu-latest
    permissions:
      issues: write

    steps:
      - name: Label new issues
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // Combine title + body
            const title = context.payload.issue.title  || ''
            const body  = context.payload.issue.body   || ''
            const content = `${title}\n${body}`

            // Always start with triage
            const labels = ['triage']

            // Map each directory/tracker → regex
            const mapping = {
              'reid'           : /\b(?:appearance|re[- ]?id|re[- ]?identification)\b/i,
              'kf'             : /\b(?:kf|kalman[- ]?filter)s?\b/i,
              'postprocessing' : /\bpostprocessing\b/i,

              // engine-related categories
              'engine'         : /\b(engine|cli|detectors|track|val)\b/i,
              'tuning'         : /\b(?:tuning|hyperparameter(?:s)?|evolution|evolve)\b/i,
              'evaluation'     : /\b(?:evaluation|eval(?:uation)?|val(?:idation)?)\b/i,
              'tracking'       : /\b(?:track(?:ing)?|track)\b/i,

              // individual tracker labels
              'boosttrack'     : /\bboosttrack\b/i,
              'botsort'        : /\bbotsort\b/i,
              'bytetrack'      : /\bbytetrack\b/i,
              'deepocsort'     : /\bdeepocsort\b/i,
              'hybridsort'     : /\bhybridsort\b/i,
              'ocsort'         : /\bocsort\b/i,
              'strongsort'     : /\bstrongsort\b/i,
              'tracktrack'     : /\btracktrack\b/i,

              // per-dataset labels
              'datasets'       : /\dataset?\b/i,
              'mot17'          : /\bMOT17\b/i,
              'mot20'          : /\bMOT20\b/i,
              'dancetrack'     : /\bDanceTrack\b/i,
            }

            // Add any matching labels
            for (const [label, regex] of Object.entries(mapping)) {
              if (regex.test(content)) {
                labels.push(label)
              }
            }

            // Apply them in one call
            await github.rest.issues.addLabels({
              owner:        context.repo.owner,
              repo:         context.repo.repo,
              issue_number: context.issue.number,
              labels
            })