#! /bin/bash

set -x
builddir="$1"
shift

filelist=$(mktemp -t ${0##*/}.XXXXXXXXXX)
trap "rm -f $filelist" EXIT
cat >"$filelist"
flavor=${1##*-}

grep -v '\.ko$' | /usr/lib/rpm/find-provides "$@" | grep -v '^ksym('

# HACK: find out what subpackage is this and just print the symsets
# computed in %build. We need to do it this way because the provided
# symsets are computed from the modules AND the reference symsets, which
# we don't see here.
subpack=

samemodules()
{
    cmp -s <(sed -rn 's:.*/([^/]*\.ko)$:\1:p' "$1" | sort) \
           <(sed -rn 's:.*/([^/]*\.ko)$:\1:p' "$2" | sort)
}

if ! grep -q '\.ko$' "$filelist"; then
    # no modules, no symsets
    exit 0
fi
if   samemodules "$builddir"/base-modules "$filelist"; then
    symsets=("$builddir/base-symsets")
elif samemodules "$builddir"/main-modules "$filelist"; then
    symsets=("$builddir/base-symsets" "$builddir/main-symsets")
elif samemodules "$builddir"/unsupported-modules "$filelist"; then
    symsets=("$builddir/extra-symsets")
else
    echo "find-provides: failed to determine which subpackage is this" >&2
    exit 1
fi

find "${symsets[@]}" -type f -printf '%f\n' | \
	 sed -rn 's/^\.?(.+)\.([a-z0-9]{16})(\.fake)?$/kernel('$flavor':\1) = \2/p'

exit 0