nightly-beta.yml

name: Nightly Beta

on:
  schedule:
    - cron: '0 3 * * *'
  workflow_dispatch:

jobs:
  nightly-beta:
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check for changes since last beta
        id: check
        run: |
          LAST_BETA=$(git tag -l 'v*-beta*' --sort=-v:refname | head -n1)
          LAST_RELEASE=$(git describe --tags --abbrev=0 --match 'v[0-9]*' --exclude '*-*' HEAD 2>/dev/null || echo "")
          REF="${LAST_BETA:-${LAST_RELEASE}}"

          if [ -n "$REF" ]; then
            CHANGES=$(git log "${REF}..HEAD" --oneline --no-merges | grep -cv '\[skip ci\]' || true)
          else
            CHANGES=$(git log HEAD --oneline --no-merges | grep -cv '\[skip ci\]' || true)
          fi

          echo "changes=$CHANGES" >> $GITHUB_OUTPUT
          echo "Changes since ${REF:-inception}: $CHANGES"

      - name: Create beta tag and trigger release
        if: steps.check.outputs.changes != '0'
        run: |
          BASE=$(git describe --tags --abbrev=0 --match 'v[0-9]*' --exclude '*-*' HEAD 2>/dev/null || echo "v0.1.0")
          SHA=$(git rev-parse HEAD)

          # Find next available beta number (API check handles ghost refs from deleted tags)
          NUM=1
          while gh api "repos/${{ github.repository }}/git/ref/tags/${BASE}-beta.${NUM}" --silent 2>/dev/null; do
            NUM=$((NUM + 1))
          done

          # Create tag, retry with next number on conflict (ghost ref not visible via GET)
          for i in $(seq 0 4); do
            TAG="${BASE}-beta.$((NUM + i))"
            if gh api "repos/${{ github.repository }}/git/refs" \
                 -f ref="refs/tags/${TAG}" -f sha="${SHA}" 2>/dev/null; then
              echo "Created tag: ${TAG}"
              exit 0
            fi
          done
          echo "::error::Could not create beta tag"
          exit 1
        env:
          GH_TOKEN: ${{ secrets.PAT_TOKEN }}