build.yml

# Copyright (c) 2020-2021-2022 Luca Cappa
# Released under the term specified in file LICENSE.txt
# SPDX short identifier: MIT
#
# The peculiarity of this workflow is that assumes vcpkg is NOT stored as a submodule of this repository.
# This workflow does the following:
# - Restores vcpkg artifacts from cache.
# - Using the provided Git commit id, sets up vcpkg if needed, then run CMake with CMakePreset.json using a configuration
#   that leverages the vcpkg's toolchain file. This will automatically run vcpkg to install dependencies
#   described by the vcpkg.json manifest file. It will be a no-op if those are restored from cache.
# - Finally builds the sources with Ninja.
name: hosted-ninja-vcpkg-autocache
on: [push, workflow_dispatch]

jobs:
  job:
    name: ${{ matrix.os }}-${{ github.workflow }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        include:
          - os: windows-latest
            vcpkgCommitId: 'cfa560b585b4b17eaa26c74845924fc1f76ef74e'
          - os: ubuntu-latest
            vcpkgCommitId: 'cfa560b585b4b17eaa26c74845924fc1f76ef74e'
          - os: macos-latest
            vcpkgCommitId: 'cfa560b585b4b17eaa26c74845924fc1f76ef74e'

    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
          fetch-depth: 0
          path: repo

      - name: Create git archive to build
        run: |
          cd repo
          git archive --format=tar --prefix= HEAD -o archive.tar
          cd ..
          tar xf repo/archive.tar

      - uses: lukka/get-cmake@latest
      - name: Dump the content of $RUNNER_TEMP
        run: find $RUNNER_TEMP
        shell: bash
      - name: Dump the content of $RUNNER_WORKSPACE
        run: find $RUNNER_WORKSPACE
        shell: bash

      - name: Restore artifacts, or setup vcpkg (do not install any package)
        uses: lukka/run-vcpkg@v11
        id: runvcpkg
        with:
          # This specifies the location of vcpkg, where it is going to be restored from cache, or create from scratch.
          vcpkgDirectory: '${{ runner.workspace }}/b/vcpkg'
          # The Git commit id of vcpkg to be checked out. This is only needed because we are not using a submodule.
          vcpkgGitCommitId: '${{ matrix.vcpkgCommitId}}'
          # The vcpkg.json file, which will be part of cache key computation.
          vcpkgJsonGlob: '**/vcpkg.json'

      - name: Prints output of run-vcpkg's action
        run: echo "root='${{ steps.runvcpkg.outputs.RUNVCPKG_VCPKG_ROOT_OUT }}', triplet='${{ steps.runvcpkg.outputs.RUNVCPKG_VCPKG_DEFAULT_TRIPLET_OUT }}'"

      - name: Install gfortran
        if: runner.os == 'macOS'
        run: |
          brew install gfortran
          ln -s /usr/local/bin/gfortran-12 /usr/local/bin/gfortran
          ln -s /usr/local/bin/gcc-12 /usr/local/bin/gcc
          which gfortran

      - name: Run CMake with Ninja
        uses: lukka/run-cmake@v10
        with:
          cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
          configurePreset: 'ninja-multi-vcpkg'
          buildPreset: 'ninja-multi-vcpkg'

      - name: List $RUNNER_WORKSPACE after build
        run: find $RUNNER_WORKSPACE
        shell: bash