CI.yml

name: CI

on:
  push:
  pull_request:
  release:
    types: [published]

env:
  CI: "ON" # We can detect this in the build system and other vendors implement it
  HOMEBREW_NO_ANALYTICS: "ON" # Make Homebrew installation a little quicker
  HOMEBREW_NO_AUTO_UPDATE: "ON"
  HOMEBREW_NO_BOTTLE_SOURCE_FALLBACK: "ON"
  HOMEBREW_NO_GITHUB_API: "ON"
  HOMEBREW_NO_INSTALL_CLEANUP: "ON"

jobs:

  build:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-12, windows-latest]
        toolchain:
          - {compiler: gcc, version: 10}
          - {compiler: gcc, version: 11}
          - {compiler: gcc, version: 12}
          - {compiler: gcc, version: 13}
        exclude:
          - os: macos-12
            toolchain: {compiler: gcc, version: 13}          
        include:
          - os: ubuntu-latest
            os-arch: linux-x86_64
            release-flags: --flag '--static -g -fbacktrace -O3'
          - os: macos-12
            os-arch: macos-x86_64
            release-flags: --flag '-g -fbacktrace -O3'
          - os: windows-latest
            os-arch: windows-x86_64
            release-flags: --flag '--static -g -fbacktrace -O3'
            exe: .exe

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

    - name: Setup Fortran compiler
      uses: fortran-lang/setup-fortran@v1.6.1
      id: setup-fortran
      with:
        compiler: ${{ matrix.toolchain.compiler }}
        version: ${{ matrix.toolchain.version }}

    # Phase 1: Bootstrap fpm with existing version
    - name: Install fpm
      uses: fortran-lang/setup-fpm@v5
      with:
        fpm-version: 'v0.8.0'

    # Backport gfortran shared libraries to version 9 folder. This is necessary because the macOS release of fpm 
    # 0.10.0 used for bootstrapping has these paths hardcoded in the executable.
    - name: MacOS patch libgfortran
      if: contains(matrix.os, 'macos') && !contains(matrix.toolchain.version, '10')
      run: |
        which gfortran-${{ matrix.toolchain.version }}
        which gfortran
        mkdir /usr/local/opt/gcc@10
        mkdir /usr/local/opt/gcc@10/lib
        mkdir /usr/local/opt/gcc@10/lib/gcc
        mkdir /usr/local/opt/gcc@10/lib/gcc/10
        mkdir /usr/local/lib/gcc/10
        ln -fs /usr/local/opt/gcc@${{ matrix.toolchain.version }}/lib/gcc/${{ matrix.toolchain.version }}/libquadmath.0.dylib /usr/local/opt/gcc@10/lib/gcc/10/libquadmath.0.dylib 
        ln -fs /usr/local/opt/gcc@${{ matrix.toolchain.version }}/lib/gcc/${{ matrix.toolchain.version }}/libgfortran.5.dylib /usr/local/opt/gcc@10/lib/gcc/10/libgfortran.5.dylib
        ln -fs /usr/local/lib/gcc/${{ matrix.toolchain.version }}/libgcc_s.1.dylib /usr/local/lib/gcc/10/libgcc_s.1.dylib

    # gcc and g++ will point to clang/clang++: use versioned alias for fpm
    - name: MacOS patch C and C++ compilers
      if: contains(matrix.os, 'macos')
      run: |
        echo "CC=gcc-${{ matrix.toolchain.version }}" >> $GITHUB_ENV
        echo "FPM_CC=gcc-${{ matrix.toolchain.version }}" >> $GITHUB_ENV
        echo "CXX=g++-${{ matrix.toolchain.version }}" >> $GITHUB_ENV
        echo "FPM_CXX=g++-${{ matrix.toolchain.version }}" >> $GITHUB_ENV
        echo "FPM_LDFLAGS=-lstdc++" >> $GITHUB_ENV

    - name: Remove fpm from path
      shell: bash
      run: |
        mv $(which fpm) fpm-bootstrap${{ matrix.exe }}
        echo "BOOTSTRAP=$PWD/fpm-bootstrap" >> $GITHUB_ENV

    - name: Build Fortran fpm (bootstrap)
      shell: bash
      run: |
        ${{ env.BOOTSTRAP }} build 

    - name: Run Fortran fpm (bootstrap)
      shell: bash
      run: |
        ${{ env.BOOTSTRAP }} run
        ${{ env.BOOTSTRAP }} run -- --version
        ${{ env.BOOTSTRAP }} run -- --help

    - name: Test Fortran fpm (bootstrap)
      shell: bash
      run: |
        ${{ env.BOOTSTRAP }} test

    - name: Install Fortran fpm (bootstrap)
      shell: bash
      run: |
        ${{ env.BOOTSTRAP }} install

    # Phase 2: Bootstrap fpm with itself
    - name: Replace bootstrapping version
      shell: bash
      run: |
        ${{ env.BOOTSTRAP }} run --runner cp -- fpm-debug${{ matrix.exe }}
        rm -v ${{ env.BOOTSTRAP }}
        echo "FPM=$PWD/fpm-debug" >> $GITHUB_ENV

    - name: Get version (normal)
      if: github.event_name != 'release'
      shell: bash
      run: |
        VERSION=$(git rev-parse --short HEAD)
        echo "VERSION=$VERSION" >> $GITHUB_ENV

    - name: Get version (release)
      if: github.event_name == 'release'
      shell: bash
      run: |
        VERSION=$(echo ${{ github.ref }} | cut -dv -f2)
        echo "VERSION=$VERSION" >> $GITHUB_ENV
        FPM_VERSION=$(${{ env.FPM }} --version | grep -o '${{ env.REGEX }}')
        [ "$VERSION" = "$FPM_VERSION" ]
      env:
        REGEX: '[0-9]\{1,4\}\.[0-9]\{1,4\}\.[0-9]\{1,4\}'

    - name: Build Fortran fpm
      shell: bash
      run: |
        ${{ env.FPM }} build ${{ matrix.release-flags }}

    - name: Run Fortran fpm
      shell: bash
      run: |
        ${{ env.FPM }} run ${{ matrix.release-flags }}
        ${{ env.FPM }} run ${{ matrix.release-flags }} -- --version
        ${{ env.FPM }} run ${{ matrix.release-flags }} -- --help

    - name: Test Fortran fpm
      shell: bash
      run: |
        ${{ env.FPM }} test ${{ matrix.release-flags }}

    - name: Install Fortran fpm
      shell: bash
      run: |
        ${{ env.FPM }} install ${{ matrix.release-flags }}

    - name: Package release version
      shell: bash
      run: |
        ${{ env.FPM }} run ${{ matrix.release-flags }} --runner cp -- ${{ env.EXE }}
        rm -v ${{ env.FPM }}
        echo "FPM_RELEASE=${{ env.EXE }}" >> $GITHUB_ENV
      env:
        EXE: fpm-${{ env.VERSION }}-${{ matrix.os-arch }}-gcc-${{ matrix.toolchain.version }}${{ matrix.exe }}

    - name: Run release version
      shell: bash
      run: |
        ci/run_tests.sh "$PWD/${{ env.FPM_RELEASE }}"

    - name: Upload artifact
      uses: actions/upload-artifact@v4
      with:
        name: ${{ env.FPM_RELEASE }}
        path: ${{ env.FPM_RELEASE }}


  make-installer:
    if: ${{ github.event_name == 'release' && contains(github.ref, 'v') || github.event_name == 'push' }}
    runs-on: windows-latest
    needs:
      - build
    strategy:
      fail-fast: false
      matrix:
        gcc_v: [10,11,12]
    
    steps:
    - uses: actions/checkout@v4

    - name: Download Artifacts
      uses: actions/download-artifact@v4
      with:
        path: ${{ github.workspace }}
        pattern: fpm-*-windows-*-gcc-${{ matrix.gcc_v }}.exe

    - name: Get version (normal)
      if: github.event_name != 'release'
      shell: bash
      run: |
        VERSION=$(git rev-parse --short HEAD)
        echo "VERSION=$VERSION" >> $GITHUB_ENV

    - name: Get version (release)
      if: github.event_name == 'release'
      shell: bash
      run: |
        VERSION=$(echo ${{ github.ref }} | cut -dv -f2)
        echo "VERSION=$VERSION" >> $GITHUB_ENV
      env:
        REGEX: '[0-9]\{1,4\}\.[0-9]\{1,4\}\.[0-9]\{1,4\}'

    - name: Setup MinGW (MSYS2)
      uses: msys2/setup-msys2@v2
      with:
        msystem: MINGW64
        update: false
        install: >-
          wget
          unzip

    - name: Fetch Windows executable
      shell: msys2 {0}
      run: |
        cp fpm-*/fpm-*-windows-*-gcc-${{ matrix.gcc_v }}.exe ./ci/fpm.exe

    - name: Fetch Git for Windows
      shell: msys2 {0}
      run: |
        cd ./ci
        wget ${{ env.git_download }} -O MinGit.zip
        unzip MinGit.zip -d MinGit
      env:
        git_download: "https://github.com/git-for-windows/git/releases/download/v2.33.1.windows.1/MinGit-2.33.1-64-bit.zip"

    - name: Fetch EnVar Plugin for NSIS
      shell: msys2 {0}
      run: |
        cd ./ci
        wget ${{ env.envar_download }} -O EnVar-Plugin.zip
        mkdir EnVar_plugin
        unzip EnVar-Plugin.zip -d EnVar_plugin
      env:
        envar_download: "https://github.com/GsNSIS/EnVar/releases/download/v0.3.1/EnVar-Plugin.zip"

    - name: Generate installer
      run: |
        cd ./ci
        makensis fpm-installer.nsi
        move fpm-installer.exe fpm-installer-${{ env.VERSION }}-gcc-${{ matrix.gcc_v }}.exe

    - name: Upload artifact
      uses: actions/upload-artifact@v4
      with:
        name: fpm-installer-gcc-${{ matrix.gcc_v }}
        path: ci/fpm-installer-${{ env.VERSION }}-gcc-${{ matrix.gcc_v }}.exe

  upload-artifacts:
    if: ${{ github.event_name == 'release' && contains(github.ref, 'v') || github.event_name == 'push' }}
    runs-on: ubuntu-latest
    needs:
      - build
      - make-installer

    steps:
    - id: deploy-on-push
      if: ${{ github.event_name == 'push' }}
      run:
        echo "::set-output name=result::${{ env.DEPLOY_BRANCH }}"
      env:
        DEPLOY_BRANCH: ${{ secrets.DEPLOY_BRANCH && contains(github.ref, secrets.DEPLOY_BRANCH) && 1 || 0 }}

    - uses: actions/checkout@v4
      if: ${{ github.event_name == 'push' }}

    - name: Download Artifacts
      uses: actions/download-artifact@v4
      with:
        path: fpm-cd-artifacts
        pattern: 'fpm-*-gcc-12*'
        merge-multiple: true

    - name: Normalize file names for continuous delivery
      if: ${{ github.event_name == 'push' }}
      run: |
        cd fpm-cd-artifacts
        for output in fpm-*; do
          mv -v $(basename $output) $(basename $output | sed -E '${{ env.replace }}')
        done
      env:
        replace: 's/-([0-9]+\.[0-9]+\.[0-9]+-[0-9]+-g)?[0-9a-f]+//'

    - name: Create SHA256 checksums
      run: |
        cd fpm-cd-artifacts
        for output in fpm-*; do
          sha256sum $(basename "$output") | tee $(basename "$output").sha256
        done

    - name: Move/Create continuous tag
      if: ${{ github.event_name == 'push' && steps.deploy-on-push.outputs.result != 0 }}
      run: |
        git tag --force 'current' ${{ github.sha }}
        git push --tags --force

    - name: Upload assets
      uses: svenstaro/upload-release-action@v2
      if: ${{ github.event_name == 'release' || steps.deploy-on-push.outputs.result != 0 }}
      with:
        repo_token: ${{ secrets.GITHUB_TOKEN }}
        file: fpm-cd-artifacts/*
        file_glob: true
        tag: ${{ github.event_name == 'release' && github.ref || 'current'}}
        overwrite: true