linux-from-scratch/build-helpers.sh

set +h

logenv() {
cat << EOF | tee "$logdir"/env.log
package:    $package
source:     $pkgver.$ext
md5sum:     $src_md5
srcdir:     $srcdir
builddir:   $builddir
installdir: $installdir
logdir:     $logdir
EOF
}

unpack_commands() {
    cd "$basedir"
    check_md5=$(awk "/[[:space:]]+$src$/ {print \$1}" md5sums)
    [[ $check_md5 = $src_md5 ]] || {
        >&2 printf 'Incorrect md5sums: %s != %s\n' $src_md5 $check_md5
        exit 1
    }
    TARFLAGS="xvf"
    case $ext in
        tar.bz2)
            TARFLAGS+=j
            ;;
    esac
    [[ -d "$srcdir" ]] || tar $TARFLAGS "$src"
    [[ -d "$builddir" ]] || mkdir -pv "$builddir"
}

configure_commands() {
    cd "$builddir"
    "$srcdir"/configure
}

make_commands() {
    cd "$builddir"
    make
}

install_commands() {
    cd "$builddir"
    make DESTDIR="$installdir" install
    cd "$installdir"
    find -mindepth 1 -type d -exec mkdir -pv /{} \;
    find -H -mindepth 1 \( -type f -o -type l \) -exec cp -v -d {} /{} \;
}

uninstall_commands() {
    [[ -d "$installdir" ]] && {
        pushd "$installdir" > /dev/null
        find -H -mindepth 1 \( -type f -o -type l \) -exec rm -vf /{} \;
        popd > /dev/null
        rm -rvf "$installdir"
    }
}

clean_commands() { :
    echo -n "Uninstalling ... "
    uninstall_commands
    echo Done.
    echo -n "Removing log files ... "
    for stage in $stages; do
        for ext in log err; do
            f="$logdir/$stage.$ext"
            [[ -f "$f" ]] && rm -vf "$f"
        done
    done
    echo Done.
    echo -n "Deleting extracted sources ... "
    for d in "$srcdir" "$builddir"; do
        [[ -d "$d" ]] && rm -rvf "$d"
    done
    echo Done.
}

check_pipe() {
    for s in "${PIPESTATUS[@]}"; do
        [[ $s -ne 0 ]] && { echo " FAILED!" ; exit 1 ; }
    done
    echo " successful!"
    return 0
}