LXR qemu/scripts/archive-source.sh

   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.
  29submodules="dtc slirp meson ui/keycodemapdb"
  30submodules="$submodules tests/fp/berkeley-softfloat-3 tests/fp/berkeley-testfloat-3"
  31sub_deinit=""
  32
  33function cleanup() {
  34    local status=$?
  35    rm -rf "$sub_tdir"
  36    if test "$sub_deinit" != ""; then
  37        git submodule deinit $sub_deinit
  38    fi
  39    exit $status
  40}
  41trap "cleanup" 0 1 2 3 15
  42
  43function tree_ish() {
  44    local retval='HEAD'
  45    if ! git diff-index --quiet --ignore-submodules=all HEAD -- &>/dev/null
  46    then
  47        retval=$(git stash create)
  48    fi
  49    echo "$retval"
  50}
  51
  52git archive --format tar "$(tree_ish)" > "$tar_file"
  53test $? -ne 0 && error "failed to archive qemu"
  54for sm in $submodules; do
  55    status="$(git submodule status "$sm")"
  56    smhash="${status#[ +-]}"
  57    smhash="${smhash%% *}"
  58    case "$status" in
  59        -*)
  60            sub_deinit="$sub_deinit $sm"
  61            git submodule update --init "$sm"
  62            test $? -ne 0 && error "failed to update submodule $sm"
  63            ;;
  64        +*)
  65            echo "WARNING: submodule $sm is out of sync"
  66            ;;
  67    esac
  68    (cd $sm; git archive --format tar --prefix "$sm/" $(tree_ish)) > "$sub_file"
  69    test $? -ne 0 && error "failed to archive submodule $sm ($smhash)"
  70    tar --concatenate --file "$tar_file" "$sub_file"
  71    test $? -ne 0 && error "failed append submodule $sm to $tar_file"
  72done
  73exit 0
  74