Add a Github workflow to do cross OS builds.

[gedw99]

@paulsmith

#121 seems to fix Windows, so how about if we add a GitHub workflow to use a build matrix to build on Windows, Mac and Linux ?

This GitHub workflow calls make "ci-all", so all we need to do is to add a make target for it to the Makefile. Github workflows will then call it for each OS.

It can also build for many go versions by adding extra params...

name: make

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

on:
  # Runs on pushes targeting the default branch
  push:
    branches:
      - 'main'
    tags:
      - 'v*'
  # Runs on PRS targeting any branch
  pull_request:

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
  DESTDIR: ./bin

jobs:

  #
  # Tests for all platforms. Runs a matrix build on Windows, Linux and Mac,
  # with the list of expected supported Go versions (current, previous).
  #

  build:
    name: Build and test
    strategy:
      fail-fast: false
      matrix:
        os: [ ubuntu-latest, macos-latest, windows-latest ]
        go-version: [ 1.21.5 ]
        target: [ "ci-all", ]
    runs-on: ${{ matrix.os }}
    steps:

      # Install go: https://github.com/actions/setup-go/releases/tag/v5.0.0
      - name: Install go
        uses: actions/setup-go@v5.0.0
        with:
          go-version: ${{ matrix.go-version }}
          check-latest: true
          cache-dependency-path: "**/*.sum"
        id: go

      # Set go bin
      #- name: Setup Go binary path
      #  shell: bash
      #  run: |
      #    echo "GOPATH=${{ github.workspace }}" >> $GITHUB_ENV
      #    echo "${{ github.workspace }}/bin" >> $GITHUB_PATH

      # Fix git line endings
      - name: Git line endings
        shell: bash
        run: |
          git config --global core.autocrlf false
          git config --global core.eol lf

      # Checkout code: https://github.com/actions/checkout/releases/tag/v4.1.1
      - name: Check out main code into the Go module directory
        uses: actions/checkout@v4.1.1
      #  with:
      #    ref: ${{ github.event.pull_request.head.sha }}
      #    path: ${{ github.workspace }}/go/src/github.com/${{ github.repository }}


      # Build using make
      - name: make ${{ matrix.target }}
        shell: bash
        run: |
          make $target
      #  working-directory: ${{ github.workspace }}/go/src/github.com/${{ github.repository }}
        env:
      #    CONFIG_PASSWORD: secretzSoSecureYouWontBelieveIt999
          target: ${{ matrix.target }}
          #          CONFIG_PASSWORD: ${{ secrets.CONFIG_PASSWORD }}