build-windows.yml

name: Build and Release masscan for Windows (x64)

on:
  push:
    branches: [ master ]
    tags:
      - 'v*'            # triggers a release on tags like v1.0.0
  workflow_dispatch:    # manual trigger from the Actions tab

jobs:
  build-and-release:
    runs-on: windows-latest

    steps:
      # 1. Checkout your source code
      - name: Checkout code
        uses: actions/checkout@v4

      # 2. Download and extract the Npcap SDK (WinPcap-compatible)
      - name: Setup Npcap SDK
        run: |
          curl -L -o npcap-sdk.zip https://npcap.com/dist/npcap-sdk-1.13.zip
          mkdir npcap-sdk
          tar -xf npcap-sdk.zip -C npcap-sdk
          echo "PCAP_DIR=$env:GITHUB_WORKSPACE\npcap-sdk" >> $env:GITHUB_ENV
        shell: pwsh

      # 3. Configure MSVC x64 environment
      - name: Setup MSVC Developer Command Prompt
        uses: ilammy/msvc-dev-cmd@v1
        with:
          arch: x64

      # 4. Build masscan.exe using the provided Makefile.msvc
      - name: Build masscan
        run: |
          nmake -f Makefile.msvc
        shell: cmd

      # 5. Verify the executable was created
      - name: Check binary
        run: |
          if not exist "bin\masscan.exe" exit /b 1
        shell: cmd

      # 6. Upload the exe as an artifact (useful for testing on every push)
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: masscan-win64
          path: bin\masscan.exe

      # 7. Create a GitHub Release and attach the exe (only on tag pushes)
      - name: Create Release
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v2
        with:
          files: bin\masscan.exe
          name: ${{ github.ref_name }}
          body: |
            Automated masscan Windows 64-bit build.
            Commit: ${{ github.sha }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}