manjaro-tools/bin/find-libdeps.in

#!/bin/bash
#
# 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; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

version=@version@

LIBDIR='@libdir@'

[[ -r ${LIBDIR}/util-msg.sh ]] && source ${LIBDIR}/util-msg.sh

import ${LIBDIR}/util-pkg.sh

set -e
shopt -s extglob

IGNORE_INTERNAL=0

if [[ $1 = "--ignore-internal" ]]; then
    IGNORE_INTERNAL=1
    shift
fi

script_mode=${0##*/find-lib}

case $script_mode in
    deps|provides) true;;
    *) die "Unknown mode %s" "$script_mode" ;;
esac

if [[ -z $1 ]]; then
    echo "${0##*/} [options] <package file|extracted package dir>"
    echo "Options:"
    echo "    --ignore-internal      ignore internal libraries"
    exit 1
fi

if [[ -d $1 ]]; then
    pushd $1 >/dev/null
else
    WORKDIR=$(mktemp -d --tmpdir "${0##*/}.XXXXXXXXXX")

    case ${script_mode} in
        deps) bsdtar -C "$WORKDIR" -xf "$1";;
        provides) bsdtar -C "$WORKDIR" -xf "$1" --include="*.so*";;
    esac

    pushd "$WORKDIR" >/dev/null
fi

case $script_mode in
    deps) find_args=(-perm -u+x);;
    provides) find_args=(-name *.so*);;
esac

find $PWD -type f "${find_args[@]}" | while read filename; do
    if [[ $script_mode = "provides" ]]; then
        # ignore if we don't have a shared object
        if ! LC_ALL=C readelf -h "$filename" 2>/dev/null | grep -q '.*Type:.*DYN (Shared object file).*'; then
            continue
        fi
    fi

    # get architecture of the file; if soarch is empty it's not an ELF binary
    soarch=$(LC_ALL=C readelf -h "$filename" 2>/dev/null | sed -n 's/.*Class.*ELF\(32\|64\)/\1/p')
    [[ -n $soarch ]] || continue

    if [[ $script_mode = "provides" ]]; then
        # get the string binaries link to: libfoo.so.1.2 -> libfoo.so.1
        sofile=$(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -n 's/.*Library soname: \[\(.*\)\].*/\1/p')
        [[ -z $sofile ]] && sofile="${filename##*/}"
        process_sofile "${sofile}" "${soarch}"
    elif [[ $script_mode = "deps" ]]; then
        # process all libraries needed by the binary
        for sofile in $(LC_ALL=C readelf -d "$filename" 2>/dev/null | sed -nr 's/.*Shared library: \[(.*)\].*/\1/p'); do
            process_sofile "${sofile}" "${soarch}"
        done
    fi
done

popd >/dev/null