build.yml

name: Build

on:
  push:
    branches: ['**']
  pull_request:
    branches: [master]

permissions:
  contents: read

jobs:
  build:
    name: Compile dmrcrack.exe
    runs-on: windows-latest
    timeout-minutes: 45

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

      # ── CUDA ─────────────────────────────────────────────────────────────────
      # The cache stores the full CUDA Toolkit tree.  On a cache hit we re-export
      # the env vars that the Jimver action would normally set, so that build.bat
      # can find nvcc and cuda_runtime.h after vcvarsall resets PATH.
      - name: Cache CUDA Toolkit
        id: cache-cuda
        uses: actions/cache@v4
        with:
          path: C:\Program Files\NVIDIA GPU Computing Toolkit
          key: cuda-12.6.0-windows

      - name: Install CUDA Toolkit
        if: steps.cache-cuda.outputs.cache-hit != 'true'
        uses: Jimver/cuda-toolkit@v0.2.30
        with:
          cuda: '12.6.0'
          method: 'network'
          sub-packages: '["nvcc", "cudart"]'
          use-github-env: true

      - name: Set CUDA environment after cache restore
        if: steps.cache-cuda.outputs.cache-hit == 'true'
        shell: pwsh
        run: |
          $cuda = "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.6"
          echo "CUDA_PATH=$cuda" >> $env:GITHUB_ENV
          echo "$cuda\bin" >> $env:GITHUB_PATH

      - name: Verify CUDA installation
        run: nvcc --version

      # ── DSD-FME runtime ───────────────────────────────────────────────────────
      # tools/*.dll and tools/dsd-fme.exe are gitignored; they must be downloaded
      # from the official portable release.  We cache them in .github/dsd-fme-cache
      # (separate from tools/) so that git-tracked scripts in tools/ are never
      # overwritten by stale cache content.
      - name: Cache DSD-FME runtime
        id: cache-dsd
        uses: actions/cache@v4
        with:
          path: .github/dsd-fme-cache
          key: dsd-fme-portable-20251214-v2

      - name: Download DSD-FME runtime
        if: steps.cache-dsd.outputs.cache-hit != 'true'
        shell: pwsh
        run: |
          $url = "https://github.com/lwvmobile/dsd-fme/releases/download/20251214/dsd-fme-x86-64-cygwin-portable.zip"
          $tmp = "$env:RUNNER_TEMP\dsd-fme.zip"
          New-Item -ItemType Directory -Force -Path .github/dsd-fme-cache | Out-Null
          Write-Host "Downloading DSD-FME portable..."
          Invoke-WebRequest -Uri $url -OutFile $tmp -UseBasicParsing
          Write-Host "Extracting..."
          Add-Type -AssemblyName System.IO.Compression.FileSystem
          $z = [IO.Compression.ZipFile]::OpenRead($tmp)
          foreach ($e in $z.Entries) {
            if ($e.FullName -match '^dsd-fme-portable/dsd-fme/[^/]+$') {
              if ($e.Name -match '\.dll$' -or $e.Name -eq 'dsd-fme.exe') {
                [IO.Compression.ZipFileExtensions]::ExtractToFile($e, ".github/dsd-fme-cache/$($e.Name)", $true)
              }
            }
          }
          $z.Dispose()
          Remove-Item $tmp
          Copy-Item .github/dsd-fme-cache/* tools/
          Write-Host "Done: $((Get-ChildItem tools/cyg*.dll | Measure-Object).Count) DLLs + dsd-fme.exe"

      - name: Restore DSD-FME from cache
        if: steps.cache-dsd.outputs.cache-hit == 'true'
        shell: pwsh
        run: Copy-Item .github/dsd-fme-cache/* tools/ -Force

      - name: Verify DSD-FME files
        shell: pwsh
        run: |
          $exe  = Test-Path "tools/dsd-fme.exe"
          $dlls = (Get-ChildItem tools/cyg*.dll -ErrorAction SilentlyContinue | Measure-Object).Count
          Write-Host "dsd-fme.exe present: $exe  |  Cygwin DLLs: $dlls"
          if (-not $exe -or $dlls -lt 10) { Write-Error "DSD-FME runtime incomplete"; exit 1 }

      # ── Build ─────────────────────────────────────────────────────────────────
      - name: Create bin directory
        run: New-Item -ItemType Directory -Force -Path bin

      - name: Build dmrcrack.exe
        shell: cmd
        run: |
          call build.bat
          if errorlevel 1 exit /b 1
          if not exist bin\dmrcrack.exe (
            echo ERROR: dmrcrack.exe not produced
            exit /b 1
          )

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: dmrcrack-${{ github.sha }}
          path: bin\dmrcrack.exe
          retention-days: 7

  build-linux:
    name: Compile dmrcrack (Linux CLI)
    runs-on: ubuntu-24.04
    timeout-minutes: 45

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

      # ── CUDA ─────────────────────────────────────────────────────────────────
      - name: Cache CUDA Toolkit
        id: cache-cuda
        uses: actions/cache@v4
        with:
          path: /usr/local/cuda-12.6
          key: cuda-12.6.0-linux

      - name: Install CUDA Toolkit
        if: steps.cache-cuda.outputs.cache-hit != 'true'
        uses: Jimver/cuda-toolkit@v0.2.30
        with:
          cuda: '12.6.0'
          method: 'network'
          sub-packages: '["nvcc", "cudart"]'
          use-github-env: true

      - name: Set CUDA environment after cache restore
        if: steps.cache-cuda.outputs.cache-hit == 'true'
        run: |
          echo "CUDA_PATH=/usr/local/cuda-12.6" >> "$GITHUB_ENV"
          echo "/usr/local/cuda-12.6/bin" >> "$GITHUB_PATH"

      - name: Verify CUDA installation
        run: nvcc --version

      # ── Build ─────────────────────────────────────────────────────────────────
      - name: Configure
        run: cmake -S . -B build -DNO_GUI=ON -DCMAKE_BUILD_TYPE=Release

      - name: Build
        run: cmake --build build --parallel

      - name: Verify binary
        run: |
          test -f bin/dmrcrack
          file bin/dmrcrack | grep -q "ELF 64-bit"
          echo "Binary OK: $(file bin/dmrcrack)"

      - name: Upload build artifact
        uses: actions/upload-artifact@v4
        with:
          name: dmrcrack-linux-${{ github.sha }}
          path: bin/dmrcrack
          retention-days: 7