Add a GitHub action to compile the Linux x64 binaries

[beltran-rubo]

The XAMPP binaries for Linux x64 can be compiled on top of the Dockerfile from the repo. It would be good to verify the compilation of all binaries is correct before merging any Pull Request.

[therealsujitk]

I'll just leave this here, this action isn't fully tested because the tarballs from SourceForge are outdated. If in future we can automate downloading the latest tarballs, then this action can be used.

name: Linux Build

on:
  pull_request:
    branches:
      - main

env:
  PHP_VERSION: 80

jobs:
  build:
    runs-on: ubuntu-latest

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

    - name: Build Docker image
      run: docker build . -t xampp-build

    - name: Download tarballs
      run: |
          curl -L > 'tarballs.tgz' "https://master.dl.sourceforge.net/project/xampp/thirdparties/tarballs-unix-202206.tgz?viasf=1"
          mkdir tarballs
          tar -xvzf tarballs.tgz -C tarballs

    - name: Run the Docker container
      run: docker run -v "$(pwd):/home/xampp-code" -v "$(pwd)/tarballs:/tmp/tarballs" --name xampp-container -it -d xampp-build bash

    - name: Compile tarballs
      run: docker exec xampp-container bash -c 'cd /home/xampp-code/src && tclkit createstack.tcl buildTarball xamppunixinstaller${{ env.PHP_VERSION }}stack linux-x64 && mv /bitnami/xamppunixinstaller${{ env.PHP_VERSION }}stack-linux-x64/output/*.tar.gz /tmp/tarballs'

    - name: Build the installer
      run: |
          docker exec xampp-container bash -c 'cd /home/xampp-code/src && tclkit createstack.tcl pack xamppunixinstaller${{ env.PHP_VERSION }}stack linux-x64'
          docker cp xampp-container:/opt/installbuilder/output .

    - name: Upload the build output
      uses: actions/upload-artifact@v4
      with:
          path: output/*