pwn.nc_hidden.yml

name: Challenge 欸我 Flag 呢

on:
  push:
    branches: ["main", "pwn/nc-hidden"]
    paths:
      - "!**/README.md"
      - "challenges/pwn/nc_hidden/build/**"
  workflow_dispatch:

env:
  TYPE: pwn
  NAME: nc_hidden
  BRANCH: pwn/nc-hidden
  REGISTRY: ghcr.io

jobs:
  challenge-build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository }}/${{ env.NAME }}
          tags: |
            type=raw,value=latest

      - name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: challenges/${{ env.TYPE }}/${{ env.NAME }}/build
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          push: true

      - name: Extract executable from Docker image
        run: |
          docker create --name temp ${{ steps.meta.outputs.tags }}
          mkdir -p ./challenges/${{ env.TYPE }}/${{ env.NAME }}/attachments
          if [ ! -z "${{ env.EXECUTABLE }}" ]; then
            docker cp temp:${{ env.EXECUTABLE }} ./challenges/${{ env.TYPE }}/${{ env.NAME }}/attachments/
          fi
          if [ ! -z "${{ env.LIBC }}" ]; then
            docker cp temp:${{ env.LIBC }} ./challenges/${{ env.TYPE }}/${{ env.NAME }}/attachments/
          fi
          if [ ! -z "${{ env.LD }}" ]; then
            docker cp temp:${{ env.LD }} ./challenges/${{ env.TYPE }}/${{ env.NAME }}/attachments/
          fi
          docker rm temp

      - name: Commit and push changes
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git add ./challenges/${{ env.TYPE }}/${{ env.NAME }}/attachments/
          git diff --staged --quiet || git commit -m "chore(${{ env.BRANCH }}): update attachments [skip ci]"
          git push