name: Deploy "PEFT shop" Gradio app to Spaces

on:
  push:
    branches: [ main ]
    paths:
      # the app itself, and the data sources baked into its data.json: benchmark results and the capability script
      - "method_comparison/peft-shop/**"
      - "method_comparison/*/results/**"
      - "scripts/generate_method_capabilities.py"
  schedule:
    # monthly refresh so that newly added PEFT methods reach the Space without a manual dispatch
    - cron: "0 3 1 * *"
  workflow_dispatch:

permissions: {}

jobs:
  deploy:
    # GH Environment for extra protection: https://github.com/huggingface/peft/settings/environments
    environment: branch-protection-main
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
        with:
          persist-credentials: false

      - name: Set up Python
        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1  # v6.3.0
        with:
          python-version: "3.12"

      - name: Install PEFT and app dependencies
        run: |
          # CPU-only torch keeps the install small and fast; the capability probes run on CPU anyway
          pip install torch --index-url https://download.pytorch.org/whl/cpu
          pip install -e . gradio tqdm

      - name: Build the app data
        run: |
          # data.json is generated at deploy time so that it always matches the deployed PEFT commit (see
          # method_comparison/peft-shop/README.md); the app reads method_capabilities.json from the CWD and
          # writes data.json into its own directory, where the deploy step below picks it up
          python scripts/generate_method_capabilities.py --output method_capabilities.json
          python method_comparison/peft-shop/app.py --rebuild --build-only

      - name: Ensure Space exists
        env:
          HF_TOKEN: ${{ secrets.PEFT_INTERNAL_REPO_READ_WRITE }}
        run: |
          # pushing to a non-existent Space would fail, the Hub does not create repositories on git push
          python -c "
          from huggingface_hub import create_repo
          create_repo('peft-internal-testing/PEFT-shop', repo_type='space', space_sdk='gradio', exist_ok=True)
          "

      - name: Authenticate via ~/.netrc
        env:
          HF_TOKEN: ${{ secrets.PEFT_INTERNAL_REPO_READ_WRITE }}
        run: |
          # netrc needs BOTH login and password entries
          printf "machine huggingface.co\nlogin hf\npassword ${HF_TOKEN}\n" >> ~/.netrc
          chmod 600 ~/.netrc

      - name: Deploy PEFT shop app to HF Spaces
        run: |
          cd method_comparison/peft-shop
          git init
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git remote add gradio-app https://huggingface.co/spaces/peft-internal-testing/PEFT-shop
          git add .
          # data.json is gitignored (see .gitignore) so it doesn't get committed into the PEFT repo during local
          # dev; force-add it here so the self-contained data file actually ships with the Space
          git add -f data.json
          git commit -m "🚀 Deploy PEFT shop app from GH action"
          git push -f gradio-app HEAD:main