#!/bin/bash

# Include functions.
BASEDIR=$(dirname ${0})
source ${BASEDIR}/find-common

BUILDROOT=${1}
FILELIST=${2}

binary_files=
perl_files=
pkgconfig_files=

# Walk through all file files and see what we have got here.
while read file; do
	case "${file}" in
		*/usr/lib/debug/*|*/usr/src/debug/*)
			# Skip all debuginfo files.
			continue
			;;
		*/usr/lib*/python*/*.so*)
			# Do not show python shared objects in provides list.
			;;
		*/usr/lib*/gconv/*)
			# Skip gconv files.
			continue
			;;
		*.so*)
			# Skip symlinks for performance reasons.
			[ -L "${file}" ] && continue

			file_is_elf ${file} >/dev/null 2>&1 && \
				binary_files="${binary_files} ${file}"
			;;
		*.pm)
			# This file is a perl module. We check them later.
			perl_files="${perl_files} ${file}"
			;;
		*.pc)
			pkgconfig_files="${pkgconfig_files} ${file}"
			;;
	esac
done < ${FILELIST}

# Search for SONAMEs in all binary files.
for file in ${binary_files}; do
	soname=$(file_get_soname ${file})

	# If the files does not have a SONAME, we will
	# simply use the basename.
	if [ -z "${soname}" ]; then
		if [ -L ${file} ]; then
			continue
		fi
		soname=$(basename ${file})
	fi

	if file_is_64bit ${file}; then
		is_64=true
		echo "${soname}${mark64}"
	else
		is_64=false
		echo "${soname}"
	fi

	# Find weak symbol provides.
	objdump -p ${file} 2>/dev/null | awk '
		BEGIN { START=0 ; }
		/Version definitions:/ { START=1; }
		/^[0-9]/ && (START==1) { print $4; }
		/^$/ { START=0; }' | \
                while read symbol ; do
                    echo "${soname}(${symbol})$(${is_64} && echo ${mark64} | sed 's/()//')"
                done
done

# Search for perl provides.
if [ -n "${perl_files}" ] && [ -x /usr/bin/perl ]; then
	perl ${BASEDIR}/perl.prov ${perl_files} | sort -u
fi

# pkg-config files.
pkgconfig=$(which pkg-config)

if [ -n "${pkgconfig}" -a -x "${pkgconfig}" ]; then
	for file in ${pkgconfig_files}; do
		# Query the dependencies of the package.
		${pkgconfig} --print-provides "${file}" 2> /dev/null | while read n r v ; do
			# We have a dependency.  Make a note that we need the pkgconfig
			# tool for this package.
			echo "pkgconfig(${n}) ${r} ${v}"
		done
	done | sort -u
fi

exit 0