#!/bin/sh
#$Id$
#Copyright (c) 2014 Pierre Pronchery <khorben@defora.org>
#
#Redistribution and use in source and binary forms, with or without
#modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
#DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
#FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
#DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
#SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
#CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
#OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.



#variables
PROGNAME="pylint.sh"
#executables
DEBUG="_debug"
FIND="find"
PYLINT="pep8"


#functions
#pylint
_pylint()
{
	filename="$1"

	#XXX ignores errors
	$DEBUG $PYLINT -- "$filename" 2>&1 | while read line; do
		echo "$line" 1>&2
		echo "$line"
	done
}


#debug
_debug()
{
	echo "$@" 1>&2
	"$@"
	res=$?
	#ignore errors when the command is not available
	[ $res -eq 127 ]					&& return 0
	return $res
}


#usage
_usage()
{
	echo "Usage: $PROGNAME [-c] target" 1>&2
	return 1
}


#main
clean=0
while getopts "cP:" name; do
	case "$name" in
		c)
			clean=1
			;;
		P)
			#XXX ignored for compatibility
			;;
		?)
			_usage
			exit $?
			;;
	esac
done
shift $((OPTIND - 1))
if [ $# -ne 1 ]; then
	_usage
	exit $?
fi
target="$1"

#clean
[ $clean -ne 0 ] && return 0

ret=0
(date
echo
$FIND "../doc" "../src" "../tests" "../tools" -name '*.py' | while read filename; do
	_pylint "$filename"
done) > "$target"
exit $ret