Add coverage rate to a php app gitlab-ci

First of all lets make some changes to out dockerfile and add this section into it :

RUN LC_ALL=C.UTF-8 apt-add-repository ppa:ondrej/php -y

now we can install php extensions easy pizzy !!

so we add the build section in out gitlab-ci.yml

build:
  stage: Build
  image: docker:20.10.16
  services:
    - docker:dind
  script:
    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
    - docker build --pull -t $IMAGE_TAG .
    - docker push $IMAGE_TAG

now we have our image ready just after this section finished

after that we may create a test section and install xdebug that its required just in this stage :

code-coverage:
  stage: Test
  image: $IMAGE_TAG
  script:
    - apt-get update
    - apt-get install -y php8.2-xdebug
    - export XDEBUG_MODE=coverage

we should avoid install xdebug directly in dockerfile because its reduce the performance !

Just one more section and then our coverage indicator is ready

add this line so it will run the code coverage test and extract out the coverage percent to gitlab and also make a copy of tests results so we can check them in merge requests

code-coverage:
  stage: Test
  image: $IMAGE_TAG
  script:
    - apt-get update
    - apt-get install -y php8.2-xdebug
    - export XDEBUG_MODE=coverage
    - ./vendor/bin/phpunit --do-not-cache-result --log-junit phpunit-report.xml --coverage-cobertura phpunit-coverage.xml --coverage-text --colors=never
  artifacts:
    when: always
    reports:
      junit: phpunit-report.xml
      coverage_report:
        coverage_format: cobertura
        path: phpunit-coverage.xml
  coverage: '/^\s*Lines:\s*\d+.\d+\%/'

now lets create a merge request and we what happens after pipelines passed :