PHP wrapper to remove PhpStorm's XDebug command-line argument when PCov is in use

php-pcov-helper.sh

#!/bin/bash

# This script wraps php to help PhpStorm avoid loading XDebug when all we want
# is a PCov-enabled code coverage report (XDebug makes things very slow).
#
# We detect an argument that looks like -dzend_extension...xdebug.so and omit it
# if we _also_ detect a -dpcov.enabled=1 argument. All other arguments are
# passed through.

set -e

POSITIONAL=()
IS_PCOV=0
XDEBUG_ARG=""
while [[ $# -gt 0 ]]
do
    if [[ "$1" =~ .*xdebug\.so$ ]]
    then
        XDEBUG_ARG="$1"
    elif [[ "$1" == "-dpcov.enabled=1" ]]
    then
        IS_PCOV=1
        POSITIONAL+=("$1")
    else
        POSITIONAL+=("$1")
    fi
    shift
done

# Only add the XDebug arg back in when we aren't using PCov.
if [[ "$IS_PCOV" == "0" && "$XDEBUG_ARG" != "" ]]
then
    # Either php or PhpStorm is sensitive to argument order; extension first!
    POSITIONAL=("$XDEBUG_ARG" "${POSITIONAL[@]}")
fi

# Pass through our filtered arguments to PHP.
php "${POSITIONAL[@]}"