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 ui/keycodemapdb tests/fp/berkeley-softfloat-3 tests/fp/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"
  53for sm in $submodules; do
  54    status="$(git submodule status "$sm")"
  55    smhash="${status#[ +-]}"
  56    smhash="${smhash%% *}"
  57    case "$status" in
  58        -*)
  59            sub_deinit="$sub_deinit $sm"
  60            git submodule update --init "$sm"
  61            test $? -ne 0 && error "failed to update submodule $sm"
  62            ;;
  63        +*)
  64            echo "WARNING: submodule $sm is out of sync"
  65            ;;
  66    esac
  67    (cd $sm; git archive --format tar --prefix "$sm/" $(tree_ish)) > "$sub_file"
  68    test $? -ne 0 && error "failed to archive submodule $sm ($smhash)"
  69    tar --concatenate --file "$tar_file" "$sub_file"
  70    test $? -ne 0 && error "failed append submodule $sm to $tar_file"
  71done
  72exit 0
  73