xref: /openbmc/qemu/scripts/archive-source.sh (revision 4921d0a7)
1#!/bin/bash
2#
3# Author: Fam Zheng <famz@redhat.com>
4#
5# Archive source tree, including submodules. This is created for test code to
6# export the source files, in order to be built in a different environment,
7# such as in a docker instance or VM.
8#
9# This code is licensed under the GPL version 2 or later.  See
10# the COPYING file in the top-level directory.
11
12error() {
13    printf %s\\n "$*" >&2
14    exit 1
15}
16
17if test $# -lt 1; then
18    error "Usage: $0 <output tarball>"
19fi
20
21tar_file=$(realpath "$1")
22sub_tdir=$(mktemp -d "${tar_file%.tar}.sub.XXXXXXXX")
23sub_file="${sub_tdir}/submodule.tar"
24
25# We want a predictable list of submodules for builds, that is
26# independent of what the developer currently has initialized
27# in their checkout, because the build environment is completely
28# different to the host OS.
29subprojects="keycodemapdb libvfio-user berkeley-softfloat-3 berkeley-testfloat-3"
30sub_deinit=""
31
32function cleanup() {
33    local status=$?
34    rm -rf "$sub_tdir"
35    if test "$sub_deinit" != ""; then
36        git submodule deinit $sub_deinit
37    fi
38    exit $status
39}
40trap "cleanup" 0 1 2 3 15
41
42function tree_ish() {
43    local retval='HEAD'
44    if ! git diff-index --quiet --ignore-submodules=all HEAD -- &>/dev/null
45    then
46        retval=$(git stash create)
47    fi
48    echo "$retval"
49}
50
51git archive --format tar "$(tree_ish)" > "$tar_file"
52test $? -ne 0 && error "failed to archive qemu"
53
54for sp in $subprojects; do
55    meson subprojects download $sp
56    test $? -ne 0 && error "failed to download subproject $sp"
57    tar --append --file "$tar_file" --exclude=.git subprojects/$sp
58    test $? -ne 0 && error "failed to append subproject $sp to $tar_file"
59done
60exit 0
61