#!/bin/sh

suffix=".borig"
oldsuffix=""
suffix_changed=yes
seen_dash_dash=no
rejectmode=no

while test "$#" -ge 1; do
	path="$1"
	if test $seen_dash_dash = no; then
		case "$1" in
		-j)
			shift
			oldsuffix="$suffix"
			rejectmode=yes
			suffix=".rej"
			suffix_changed=yes
			continue
			;;
		-z)
			shift
			suffix="$1"
			shift
			suffix_changed=yes
			continue
			;;
		--)
			shift
			seen_dash_dash=yes;
			continue
			;;
		-*)
			echo "Warning: $1 is an evil name and will appear as ./$1" >&2
			path="./$path"
			;;
		esac
	fi
	if test "$suffix_changed" = yes; then
		suffix_shell=`echo "x$suffix" |sed 's/^x//;s,\([][<>()|&;'\\\`' ]\),\\\1,g;s/'\''/'\''\\'\'\''/g'`
		oldsuffix_shell=`echo "x$oldsuffix" |sed 's/^x//;s,\([][<>()|&;'\\\`' ]\),\\\1,g;s/'\''/'\''\\'\'\''/g'`
		suffix_find=`echo "x$suffix" |sed 's/^x//;s,\([?*'\"']\),\\1,g;'`
		suffix_sed=`echo "x$suffix" |sed 's/^x//;s,\([|.*'\"']\),\\1,g;'`
		suffix_changed=no
	fi
	find "$1" -name "*$suffix" |sed "s|$suffix_sed\$||" |while read f; do
		if test -f "$f"; then
			nf="$f"
		else
			nf="/dev/null"
		fi
		if test "$rejectmode" = yes; then
			echo "Index: $f"
			echo "diff -u -p -- $f$oldsuffix_shell $f"
			cat "$f$suffix"
		else
			if cmp -s -- "$f$suffix" "$nf"; then
				continue
			fi
			echo "Index: $f"
			echo "diff -u -p -- $f$suffix_shell $f"
			if test -r "$f$suffix"; then
				orig="$f$suffix"
			else
				orig="/dev/null"
			fi
			diff -u -p --label "$f" -- "$orig" "$nf"
		fi
	done
	if test "$rejectmode" = yes; then
		rejectmode=no
		suffix="$oldsuffix"
	fi
	shift
done