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
  12 error() {
  13     printf %s\\n "$*" >&2
  14     exit 1
  15 }
  16
  17 if test $# -lt 1; then
  18     error "Usage: $0 <output tarball>"
  19 fi
  20
  21 tar_file=$(realpath "$1")
  22 sub_tdir=$(mktemp -d "${tar_file%.tar}.sub.XXXXXXXX")
  23 sub_file="${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.
  29 submodules="dtc slirp ui/keycodemapdb tests/fp/berkeley-softfloat-3 tests/fp/berkeley-testfloat-3"
  30 sub_deinit=""
  31
  32 function 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 $status
  39 }
  40 trap "cleanup" 0 1 2 3 15
  41
  42 function tree_ish() {
  43     local retval='HEAD'
  44     if ! git diff-index --quiet --ignore-submodules=all HEAD -- &>/dev/null
  45     then
  46         retval=$(git stash create)
  47     fi
  48     echo "$retval"
  49 }
  50
  51 git archive --format tar "$(tree_ish)" > "$tar_file"
  52 test $? -ne 0 && error "failed to archive qemu"
  53 for 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"
  71 done
  72 exit 0