Git pre-push hook for php inspections

pre-push.sh

#!/bin/bash
  
UPSTREAM="upstream" # Could come from env

CHANGED_FILES=`git diff --name-only --diff-filter=ACM HEAD $UPSTREAM/master --raw`
PHP_SOURCE_FILES=""
PHP_TEST_FILES=""
TWIG_FILES=""

for file in $CHANGED_FILES
do
    if [[ -f $file ]]
    then
        if [[ ${file: -4} == ".php" ]] || [[ ${file: -4} == ".tpl" ]]
        then
            if [[ $file == *"tests"* ]]
            then
                PHP_TEST_FILES="$PHP_TEST_FILES $file"
            else
                PHP_SOURCE_FILES="$PHP_SOURCE_FILES $file"
            fi
        elif [[ ${file: -5} == ".twig" ]]
        then
            TWIG_FILES="$TWIG_FILES $file"
        fi
    fi
done

echo "⏳ Running inspections on changed files"

#
# Any additional inspections can add exit codes to CUMULATIVE_EXIT_CODE. If this is > 0 at the end of the inspection
# the push is prevented.
#

CUMULATIVE_EXIT_CODE=0

#
# PHP inspections
#

if [[ -z "$PHP_SOURCE_FILES" ]] && [[ -z "$PHP_TEST_FILES" ]]
then
    echo "ℹ️  No php files in change set"
else
    if [[ ! -z "$PHP_SOURCE_FILES" ]]
    then
        ./vendor/bin/psalm $PHP_SOURCE_FILES
        PSALM_RESULT=$?
        CUMULATIVE_EXIT_CODE=$((CUMULATIVE_EXIT_CODE + PSALM_RESULT))
    fi

    ./vendor/bin/phpcs $PHP_SOURCE_FILES $PHP_TEST_FILES
    PHPCS_RESULT=$?
    CUMULATIVE_EXIT_CODE=$((CUMULATIVE_EXIT_CODE + PHPCS_RESULT))
fi

if [[ ${CUMULATIVE_EXIT_CODE} -ne 0 ]]; then
    echo "⚠️  Some inspections failed"
    exit 1
else
    echo "✅ Inspections passed, pushing ..."
fi