#!/bin/bash

# Copyright (C) 1994-2017 Altair Engineering, Inc.
# For more information, contact Altair at www.altair.com.
#
# This file is part of the PBS Professional ("PBS Pro") software.
#
# Open Source License Information:
#
# PBS Pro is free software. You can redistribute it and/or modify it under the
# terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# PBS Pro is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Commercial License Information:
#
# The PBS Pro software is licensed under the terms of the GNU Affero General
# Public License agreement ("AGPL"), except where a separate commercial license
# agreement for PBS Pro version 14 or later has been executed in writing with Altair.
#
# Altair’s dual-license business model allows companies, individuals, and
# organizations to create proprietary derivative works of PBS Pro and distribute
# them - whether embedded or bundled with other software - under a commercial
# license agreement.
#
# Use of Altair’s trademarks, including but not limited to "PBS™",
# "PBS Professional®", and "PBS Pro™" and Altair’s logos is subject to Altair's
# trademark licensing policies.

checkdir="$(readlink -f $(dirname $0))"
errors=0

which pep8 1>/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
    echo "Could not find pep8 command" 1>&2
    exit 1
fi

cd ${checkdir}/..

is_python_file() {
    name=$(basename ${1})

    # special case
    # if .rst file then it will be considered
    # as a  plain text file
    if [ "x${name##*.}" == "xrst" ]; then
        return 1
    fi

    # special case
    # if __init__.py does not contain any code then file
    # command will consider it as plain text file
    if [ "x${name}" == "x__init__.py" ]; then
        return 0
    fi

    if [ "x$(file --mime-type -b ${1})" == "xtext/x-python" ]; then
        return 0
    fi
    return 1

}

check_pep8() {
    pep8 --show-source ${1} >out_check_pep8 2>&1
    return $?
}

for f in $(find test -type f)
do
    if is_python_file ${f}
    then
        if ! check_pep8 ${f}
        then
            cat out_check_pep8 1>&2
            rm -f out_check_pep8
            errors=$((errors + 1))
        fi
        if [ -x "${f}" ]; then
            echo "${f}: executable bit set" 1>&2
            errors=$((errors + 1))
        fi
    fi
done

if [ ${errors} -ne 0 ]; then
    exit 1
else
    exit 0
fi