name: Examples - Unsloth
permissions:
  contents: read
on:
  schedule:
    # Every day at 5 AM UTC+8
    - cron: '0 21 * * *'

  workflow_dispatch:

  repository_dispatch:
    types: [ci-unsloth, ci-all]

run-name: >-
  ${{ github.event_name == 'repository_dispatch'
      && format(
        'Unsloth - PR #{0} - {1} - {2}',
        github.event.client_payload.pull_number,
        github.event.client_payload.ci_label,
        github.event.client_payload.correlation_id
      )
      || format('Unsloth - {0}', github.event_name) }}

jobs:
  unsloth:
    if: >
      github.event_name != 'repository_dispatch' ||
      github.event.action == 'ci-unsloth' ||
      github.event.action == 'ci-all'
    name: Unsloth (Python ${{ matrix.python-version }}, ${{ matrix.setup-script }})
    runs-on: [self-hosted, 1ES.Pool=agl-runner-gpu]
    timeout-minutes: 60
    strategy:
      matrix:
        # Legacy versions are not supported for Unsloth examples.
        include:
        - python-version: '3.12'
          setup-script: 'stable'
        - python-version: '3.13'
          setup-script: 'latest'
      fail-fast: false
    steps:
      - name: Check GPU status
        run: nvidia-smi
      - name: Check disk space
        run: df -h
      - uses: actions/checkout@v6
        with:
          ref: ${{ github.event_name == 'repository_dispatch' && github.event.client_payload.pr_ref || (github.event.pull_request.number && format('refs/pull/{0}/merge', github.event.pull_request.number)) || github.ref }}
      - uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
          python-version: ${{ matrix.python-version }}
      - name: Upgrade dependencies (latest)
        run: uv lock --upgrade
        if: matrix.setup-script == 'latest'
      - name: Sync dependencies
        run: |
          uv sync --frozen --no-default-groups --extra verl \
            --group dev --group experiment --group trl --group agents --group torch-gpu-stable
      - name: Freeze dependencies
        run: |
          set -ex
          uv pip freeze | tee requirements-freeze.txt
          echo "UV_LOCKED=1" >> $GITHUB_ENV
          echo "UV_NO_SYNC=1" >> $GITHUB_ENV
      - name: Upload dependencies artifact
        uses: actions/upload-artifact@v6
        with:
          name: dependencies-unsloth-${{ matrix.python-version }}-${{ matrix.setup-script }}
          path: requirements-freeze.txt
          compression-level: 0

      - name: Prepare Unsloth model
        run: |
          set -ex
          cd examples/unsloth
          rm -rf models
          uv run hf download unsloth/Qwen3-4B-Instruct-2507 --local-dir models/version_0

      - name: Unsloth SFT example
        run: |
          set -ex
          source .venv/bin/activate
          cd examples/unsloth

          agl store --port 4747 &
          sleep 5
          python sft_rollout_runners.py &
          sleep 5
          python sft_algorithm.py

          pkill -f agl && echo "SIGTERM sent to agl" || echo "No agl process found"
          while pgrep -f agl; do
            echo "Waiting for agl to finish..."
            sleep 5
          done
          pkill -f sft_rollout_runners.py && echo "SIGTERM sent to sft_rollout_runners.py" || echo "No sft_rollout_runners.py process found"
          while pgrep -f sft_rollout_runners.py; do
            echo "Waiting for sft_rollout_runners.py to finish..."
            sleep 5
          done
          echo "sft_rollout_runners.py has finished."
          sleep 10

          # Check models/version_2 must exist
          if [ ! -d "models/version_2" ]; then
            echo "models/version_2 does not exist"
            exit 1
          fi
        env:
          WANDB_BASE_URL: ${{ secrets.MSR_WANDB_BASE_URL }}
          WANDB_API_KEY: ${{ secrets.MSR_WANDB_API_KEY }}

      - name: Unsloth SFT example all-in-one
        run: |
          set -ex
          source .venv/bin/activate
          cd examples/unsloth
          rm -rf models/version_1 models/version_2

          python sft_allinone.py
          if [ ! -d "models/version_2" ]; then
            echo "models/version_2 does not exist"
            exit 1
          fi
        env:
          WANDB_BASE_URL: ${{ secrets.MSR_WANDB_BASE_URL }}
          WANDB_API_KEY: ${{ secrets.MSR_WANDB_API_KEY }}