#!/bin/bash
#
#  svnignore.sh - helper app for managing svn:ignore properties
#  Copyright (C) 2007  Clifford Wolf <clifford@clifford.at>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.


if [ "$SVNIGNORE_EDIT" = "add" ]; then
	echo "$SVNIGNORE_DATA" |
	while read x; do
		if [ -n "$x" ] && ! grep -Fxq "$x" "$1"; then
			echo "$x" >> "$1"
		fi
	done
	exit 0
fi

if [ "$SVNIGNORE_EDIT" = "del" ]; then
	tmp=`mktemp`
	echo "$SVNIGNORE_DATA" |
	while read x; do
		grep -Fxv "$x" "$1" > $tmp
		grep . $tmp > "$1"
	done
	rm $tmp
	exit 0
fi

mode="$1"; shift
export SVNIGNORE_DATA=""

add_data() {
	if [ "$SVNIGNORE_DATA" = "" ]; then
		SVNIGNORE_DATA="$1"
	else
		SVNIGNORE_DATA="$SVNIGNORE_DATA
$1"
	fi
}

for x in "$@"; do
	if [[ "$x" == */* ]]; then
		( cd "${x%/*}" && $0 $mode "${x##*/}"; )
	else
		add_data "$x"
	fi
done


case "$mode" in

add|radd)
	export SVNIGNORE_EDIT="add"
	;;

del|rdel)
	export SVNIGNORE_EDIT="del"
	;;

*)
	echo "Usage: $0 { add | radd | del | rdel } pattern(s)" >&2
	exit 1
	;;

esac

if [ -n "$SVNIGNORE_DATA" ]; then
	if [ "$mode" = "radd" -o "$mode" = "rdel" ]; then
		find $PWD -type d | grep -Ev '/\.svn($|/)' |
		while read dn; do svn pe --editor-cmd "$0" svn:ignore "$dn"; done
	else
		svn pe --editor-cmd "$0" svn:ignore $PWD
	fi
fi

exit 0