xref: /openbmc/qemu/scripts/archive-source.sh (revision 6b8f9c6e)
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 "$1")
22list_file="${tar_file}.list"
23vroot_dir="${tar_file}.vroot"
24
25# We want a predictable list of submodules for builds, that is
26# independent of what the developer currently has initialized
27# in their checkout, because the build environment is completely
28# different to the host OS.
29submodules="dtc slirp ui/keycodemapdb tests/fp/berkeley-softfloat-3 tests/fp/berkeley-testfloat-3"
30
31trap "status=$?; rm -rf \"$list_file\" \"$vroot_dir\"; exit \$status" 0 1 2 3 15
32
33if git diff-index --quiet HEAD -- &>/dev/null
34then
35    HEAD=HEAD
36else
37    HEAD=$(git stash create)
38fi
39git clone --shared . "$vroot_dir"
40test $? -ne 0 && error "failed to clone into '$vroot_dir'"
41for sm in $submodules; do
42    if test -d "$sm/.git"
43    then
44       git clone --shared "$sm" "$vroot_dir/$sm"
45       test $? -ne 0 && error "failed to clone submodule $sm"
46    fi
47done
48
49cd "$vroot_dir"
50test $? -ne 0 && error "failed to change into '$vroot_dir'"
51
52git checkout $HEAD
53test $? -ne 0 && error "failed to checkout $HEAD revision"
54
55for sm in $submodules; do
56    git submodule update --init $sm
57    test $? -ne 0 && error "failed to init submodule $sm"
58done
59
60if test -n "$submodules"; then
61    {
62        git ls-files || error "git ls-files failed"
63        for sm in $submodules; do
64            (cd $sm; git ls-files) | sed "s:^:$sm/:"
65            if test "${PIPESTATUS[*]}" != "0 0"; then
66                error "git ls-files in submodule $sm failed"
67            fi
68        done
69    } | grep -x -v $(for sm in $submodules; do echo "-e $sm"; done) > "$list_file"
70else
71    git ls-files > "$list_file"
72fi
73
74if test $? -ne 0; then
75    error "failed to generate list file"
76fi
77
78tar -cf "$tar_file" -T "$list_file" || error "failed to create tar file"
79
80exit 0
81