xemu/scripts/archive-source.sh
Gerd Hoffmann 8fc76176f6 scripts: use git archive in archive-source
Use git archive to create tarballs of qemu and submodules instead of
cloning the repository and the submodules.  This is a order of magnitude
faster because it doesn't fetch the submodules from the internet each
time the script runs.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190520124716.30472-2-kraxel@redhat.com>
[AJB: fixed up tabs]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-06-12 17:53:22 +01:00

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#!/bin/bash
#
# Author: Fam Zheng <famz@redhat.com>
#
# 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() {
local status=$?
rm -rf "$sub_tdir"
if test "$sub_deinit" != ""; then
git submodule deinit $sub_deinit
fi
exit $status
}
trap "cleanup" 0 1 2 3 15
if git diff-index --quiet HEAD -- &>/dev/null
then
HEAD=HEAD
else
HEAD=$(git stash create)
fi
git archive --format tar $HEAD > "$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/" $smhash) > "$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