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#!/bin/sh
							#$Id$
							#Copyright (c) 2016-2020 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
							CONFIGSH="${0%/clint.sh}/../config.sh"
							CFLAGS=
							CPPFLAGS=
							PROGNAME="clint.sh"
							PROJECTCONF="../project.conf"
							#executables
							DATE="date"
							DEBUG="_debug"
							FIND="find"
							GREP="grep"
							LINT="lint -g"
							MKDIR="mkdir -p"
							SORT="sort -n"
							TR="tr"
							[ -f "$CONFIGSH" ] && . "$CONFIGSH"
							#functions
							#clint
							_clint()
							{
								res=0
								subdirs=
								$DATE
								while read line; do
									case "$line" in
										"["*)
											break
											;;
										"subdirs="*)
											subdirs=${line#subdirs=}
											subdirs=$(echo "$subdirs" | $TR ',' ' ')
											;;
									esac
								done < "$PROJECTCONF"
								if [ ! -n "$subdirs" ]; then
									_error "Could not locate directories to analyze"
									return $?
								fi
								for subdir in $subdirs; do
									[ -d "../$subdir" ] || continue
									for filename in $($FIND "../$subdir" -type f | $SORT); do
										case "$filename" in
											*.c)
												echo
												(_clint_lint "$filename";
													_clint_rtrim "$filename")
												;;
											*.h)
												echo
												echo "$filename:"
												(_clint_rtrim "$filename")
												;;
											*)
												continue
												;;
										esac
										if [ $? -ne 0 ]; then
											echo "FAIL"
											echo "$PROGNAME: $filename: FAIL" 1>&2
											res=2
										else
											echo "OK"
										fi
									done
								done
								return $res
							}
							_clint_lint()
							{
								filename="$1"
								echo -n "${filename%/*}/"
								$DEBUG $LINT $CPPFLAGS $CFLAGS "$filename" 2>&1
							}
							_clint_rtrim()
							{
								filename="$1"
								regex="[ 	]\\+\$"
								$DEBUG $GREP -vq "$regex" "$filename" 2>&1
							}
							#debug
							_debug()
							{
								echo "$@" 1>&3
								"$@"
								res=$?
								#ignore errors when the command is not available
								[ $res -eq 127 ]					&& return 0
								return $res
							}
							#error
							_error()
							{
								echo "$PROGNAME: $@" 1>&2
								return 2
							}
							#usage
							_usage()
							{
								echo "Usage: $PROGNAME [-c] target..." 1>&2
								return 1
							}
							#main
							clean=0
							while getopts "cO:P:" name; do
								case "$name" in
									c)
										clean=1
										;;
									O)
										export "${OPTARG%%=*}"="${OPTARG#*=}"
										;;
									P)
										CPPFLAGS="$CPPFLAGS -I$OPTARG/include"
										;;
									?)
										_usage
										exit $?
										;;
								esac
							done
							shift $((OPTIND - 1))
							if [ $# -lt 1 ]; then
								_usage
								exit $?
							fi
							#clean
							[ $clean -ne 0 ] && exit 0
							exec 3>&1
							ret=0
							while [ $# -gt 0 ]; do
								target="$1"
								dirname="${target%/*}"
								shift
								if [ -n "$dirname" -a "$dirname" != "$target" ]; then
									$MKDIR -- "$dirname"				|| ret=$?
								fi
								_clint > "$target"					|| ret=$?
							done
							exit $ret
							