Example script to run PHP CodeSniffer for only changed files

March 17th, 2022

The Script

What the Script does

  • Gets changed files, comparing the current branch to the origin/develop branch.
  • Checks for changes only in the web/themes or web/modules directories. To change this behavior, change the argument for grep below
  • Runs phpcs with the Drupal standard.
# phpcs-check-changed.sh


echo 'Printing phpcs warnings for only Changed Files';

# Gitlab-CI passes the current commit hash has as $CI_COMMIT_SHORT_SHA
# @Todo Get the current commit hash yourself if not using Gitlab-CI.
changed_files=$(git diff --name-only --diff-filter=d origin/develop..$CI_COMMIT_SHORT_SHA | grep -E "web/themes|web/modules")

if [[ -z $changed_files ]]
 echo "There are no files to check."
 exit 0

./vendor/bin/phpcs --colors --standard=Drupal --extensions=php,module,inc,install,test,profile,theme $changed_files

Sample Gitlab CI Job to run the script

# gitlab-ci.yml


  stage: Check
    - scripts/gitlab-ci/phpcs-check-changed.sh