#!/bin/sh

export LANG=POSIX

filter_deleted()
{
	local rc_file="$1"
	shift
	local cand
	for cand in "$@"; do
		grep -q "^R ./$cand/" $rc_file && continue
		echo $cand
	done
}

list_dirents_cvs()
{
	local dirs=`sed '/^D\// !d; s%^D/%%; s%/.*%%' $1/CVS/Entries`
	dirs="`filter_deleted $1/CVS/Entries $dirs`"
	local cands
	if [ -f $1/CVS/Entries.Log ]; then
		cands="`sed '/^A D\// !d; s%^A D/%%; s%/.*%%' $1/CVS/Entries.Log`"
		dirs="$dirs `filter_deleted $1/CVS/Entries.Log $cands`"
	fi
	local files=`sed '/^\// !d; s%/%%; s%/.*%%; s%^%%' $1/CVS/Entries`
	files="`filter_deleted $1/CVS/Entries $files`"
	local d f
	for f in $files; do
		echo $1/$f
	done
	for d in $dirs; do
		[ "$opt_only_regular_files" != 1 ] && echo $1/$d
		list_dirents_cvs $1/$d
	done
}

list_dirents_git()
{
	git ls-files $1
	git submodule foreach 'git ls-files | sed "s|^|$path/|"'
}

list_dirents()
{
	if [ -d $1/CVS ]; then
		list_dirents_cvs $1
		return
	fi
	git status >/dev/null 2>&1 || {
		echo "failed to list versioned files in $1: no VCS" >&2
		exit 1
	}
	list_dirents_git $1
}

set -- `getopt f "$@"`

while [ "$1" != -- ]; do
case $1 in
-f)
	opt_only_regular_files=1
	;;
esac
shift
done
shift

list_dirents . | sort