#!/bin/bash

#

# Author: Fam Zheng <[email protected]>

#

# Archive source tree, including submodules. This is created for test code to

# export the source files, in order to be built in a different environment,

# such as in a docker instance or VM.

#

# This code is licensed under the GPL version 2 or later. See

# the COPYING file in the top-level directory.

error() {

printf %s\\n "$*" >&2

exit 1

}

if test $# -lt 1; then

error "Usage: $0 <output tarball>"

fi

tar_file=$(realpath "$1")

sub_tdir=$(mktemp -d "${tar_file%.tar}.sub.XXXXXXXX")

sub_file="${sub_tdir}/submodule.tar"

# We want a predictable list of submodules for builds, that is

# independent of what the developer currently has initialized

# in their checkout, because the build environment is completely

# different to the host OS.

submodules="dtc slirp ui/keycodemapdb tests/fp/berkeley-softfloat-3 tests/fp/berkeley-testfloat-3"

sub_deinit=""

function cleanup() {

}

trap "cleanup" 0 1 2 3 15

function tree_ish() {

}

git archive --format tar "$(tree_ish)" > "$tar_file"

test $? -ne 0 && error "failed to archive qemu"

for sm in $submodules; do

status="$(git submodule status "$sm")"

smhash="${status#[ +-]}"

smhash="${smhash%% *}"

case "$status" in

-*)

sub_deinit="$sub_deinit $sm"

git submodule update --init "$sm"

test $? -ne 0 && error "failed to update submodule $sm"

;;

+*)

echo "WARNING: submodule $sm is out of sync"

;;

esac

(cd $sm; git archive --format tar --prefix "$sm/" $(tree_ish)) > "$sub_file"

test $? -ne 0 && error "failed to archive submodule $sm ($smhash)"

tar --concatenate --file "$tar_file" "$sub_file"

test $? -ne 0 && error "failed append submodule $sm to $tar_file"

done

exit 0