windows.yml

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  # Creates jou.exe and downloads the DLL files it needs.
  # Even though the resulting executable runs on windows, it is compiled on linux.
  # This is by far the easiest way to compile for Windows that I know of.
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Download LLVM installer
        run: wget --no-verbose https://github.com/llvm/llvm-project/releases/download/llvmorg-13.0.1/LLVM-13.0.1-win64.exe
      - name: Verify LLVM installer
        run: |
          ls -lh LLVM-13.0.1-win64.exe
          if [ "$(sha256sum LLVM-13.0.1-win64.exe)" == "9d15be034d52ec57cfc97615634099604d88a54761649498daa7405983a7e12f  LLVM-13.0.1-win64.exe" ]; then
            echo ok
          else
            echo "sha sum mismatch! something has changed!"
            exit 1
          fi
      # Apparently the exe file is created with nsis installer and 7z can extract from it.
      # Figured out by looking at source code of https://github.com/KyleMayes/install-llvm-action
      - name: Extract files from LLVM installer
        run: |
          files="lib/LLVM-C.lib"
          for file in $(7z l LLVM-13.0.1-win64.exe | grep -o 'bin/.*\.dll'); do
            case $file in
              # To figure out which dll files I need, I deleted them one by one and ran
              # the compiler again.
              #
              # Unfortunately you need to do this locally instead of relying on github
              # actions, because github actions comes with lots of software and hence lots
              # of DLL files preinstalled. I used a Windows VM with nothing installed.
              bin/LLVM-C.dll | \
              bin/msvcp140.dll | \
              bin/ucrtbase.dll | \
              bin/vcruntime140.dll | \
              bin/vcruntime140_1.dll | \
              bin/api-ms-win-*.dll)     # Not sure which of these we need and what each one does.
                files="$files $file"
                ;;
              *)
                echo "*** skip dll: $file ***"
                ;;
            esac
          done
          echo "Extracting $files"
          7z x LLVM-13.0.1-win64.exe $files
      # llvm-13-dev needed for the header files. They seem to be missing from LLVM windows installer.
      # Using gcc instead of clang, because gcc "just works".
      - run: sudo apt install -y llvm-13-dev gcc-mingw-w64-x86-64-win32
      - run: CC=x86_64-w64-mingw32-gcc LDFLAGS=lib/LLVM-C.lib make
      - run: mkdir -v exe-and-dlls && cp -v jou.exe bin/*.dll exe-and-dlls/
      - uses: actions/upload-artifact@v3
        with:
          name: exe-and-dlls
          path: exe-and-dlls

  codeblocks-project:
    # Ensure that the codeblocks project contains all source files.
    # It gets outdated easily when I create a new file on linux.
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - run: |
          diff -u --color=always <(ls src/* | sort) <(grep filename= jou.cbp | cut -d'"' -f2)

  test:
    needs: build
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/download-artifact@v3
        with:
          name: exe-and-dlls
      - shell: bash
        run: ./runtests.sh

  fuzzer:
    needs: build
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/download-artifact@v3
        with:
          name: exe-and-dlls
      - shell: bash
        run: ./fuzzer.sh