a pre commit hook for PHP and JSON file

precommithookforphpandjson

#!/bin/bash

PROJECT=`php -r "echo dirname(dirname(dirname(realpath('$0'))));"`
STAGED_PHP_FILES=`git diff --cached --name-only --diff-filter=ACMR HEAD | grep \\\\.php`
STAGED_JSON_FILES=`git diff --cached --name-only --diff-filter=ACMR HEAD | grep \\\\.json$`


# Determine if a file list is passed
if [ "$#" -eq 1 ]
then
    oIFS=$IFS
    IFS='
    '
    SFILES="$1"
    IFS=$oIFS
fi

SFILES_PHP=${SFILES:-$STAGED_PHP_FILES}
SFILES_JSON=${SFILES:-$STAGED_JSON_FILES}

echo "Checking PHP Lint..."
for FILE in $SFILES_PHP
do
    php -l -d display_errors=0 $PROJECT/$FILE
    if [ $? != 0 ]
    then
        echo "Fix the error before commit. Aborting commit."
        exit 1
    fi
done

echo "Checking JSON syntax..."
for JSONFILE in $SFILES_JSON
do
    JSONFILEWITHPATH=$PROJECT/$JSONFILE
    JSONERROR=`php -r '$f=file_get_contents("'$JSONFILEWITHPATH'");$j=json_decode($f );$e=json_last_error();$m=json_last_error_msg();echo (empty($e)?"":$m.PHP_EOL);'`;
    if [[ ! -z $JSONERROR ]]
    then
        echo "$JSONFILEWITHPATH has errors! Fix the error \"$JSONERROR\" before commit. Aborting commit."
        exit 1
    fi
done