如何在gitlab.com上的PHP项目的作业列表中启用代码覆盖率输出

问题是在Docker映像中缺少Xdebug安装。我无法使用来安装适当的版本apt-get，因此必须pecl install xdebug在一before_script节中添加一个呼叫：

image: php:7.1.1

cache:
  paths:
  - vendor/

before_script:
# Install git, the php image doesn't have installed
- apt-get update -yqq
- apt-get install git -yqq

# Install Xdebug
- pecl install xdebug
- docker-php-ext-enable xdebug

# Install composer
- curl -sS https://getcomposer.org/installer | php

# Install all project dependencies
- php composer.phar install

# Run our tests
test:
    only:
        - master
    script:
        - vendor/bin/phpunit --configuration phpunit.xml --coverage-text --colors=never