Specifying xdebug2 and PHP 8 installs xdebug3 instead

[danepowell]

Describe the bug
If you specify the following...

- uses: shivammathur/setup-php@v2
   with:
     php-version: "8.0"
     coverage: xdebug2

You actually get PHP 8.0 and Xdebug 3. Since Xdebug 2 and PHP 8.0 are an invalid combination, I would expect an error to be generated instead of silently installing Xdebug 3.

Version

• I have checked releases, and the bug exists in the latest patch version of v1 or v2.
• v2
• v1

Runners

• GitHub Hosted
• Self Hosted

Operating systems
Linux

[shivammathur]

@danepowell

Fixed in 2.16.0

Now, It will fail to set up Xdebug when xdebug2 is specified as the coverage driver on PHP 8.0 and above. Same for xdebug3 for PHP 7.1 and lower. It will leave an error in the logs.

- name: Setup PHP
  uses: shivammathur/setup-php@v2
  with:
    php-version: ${{ matrix.php }}
    coverage: xdebug2

If you want your workflow to fail at this error, you can set fail-fast environment variable to true.

- name: Setup PHP
  uses: shivammathur/setup-php@v2        
  env:
    fail-fast: true
  with:
    php-version: ${{ matrix.php }}
    coverage: xdebug2

[danepowell]

Thanks!