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#!/bin/sh
set -e
TEMP_D=""
cleanup() {
[ -z "$TEMP_D" ] || rm -Rf "${TEMP_D}"
}
trap cleanup EXIT
Usage() {
cat <<EOF
Usage: ${0##*/} [revision]
create a tarball of revision (default HEAD)
options:
-o | --output FILE write to file
EOF
}
short_opts="ho:v"
long_opts="help,output:,long,verbose"
getopt_out=$(getopt --name "${0##*/}" \
--options "${short_opts}" --long "${long_opts}" -- "$@") &&
eval set -- "${getopt_out}" || { Usage 1>&2; exit 1; }
long_opt=""
while [ $# -ne 0 ]; do
cur=$1; next=$2
case "$cur" in
-o|--output) output=$next; shift;;
--long) long_opt="--long";;
--) shift; break;;
esac
shift;
done
rev=${1:-HEAD}
version=$(git describe "--match=[0-9]*" ${long_opt} $rev)
archive_base="cloud-init-$version"
if [ -z "$output" ]; then
output="$archive_base.tar.gz"
fi
# when building an archiving from HEAD, ensure that there aren't any
# uncomitted changes in the working directory (because these would not
# end up in the archive).
if [ "$rev" = HEAD ] && ! git diff-index --quiet HEAD --; then
if [ -z "$SKIP_UNCOMITTED_CHANGES_CHECK" ]; then
echo "ERROR: There are uncommitted changes in your working directory." >&2
exit 1
else
echo "WARNING: There are uncommitted changes in your working directory." >&2
echo " This changes will not be included in the archive." >&2
fi
fi
TEMP_D=$(mktemp -d)
tar=${output##*/}
tar="$TEMP_D/${tar%.gz}"
git archive --format=tar --prefix="$archive_base/" "$rev" > "$tar"
gzip -9 -c "$tar" > "$output"
echo "$output"
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