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#!/bin/bash

tag=v0.1.21

set -e

tmp=$(mktemp -d)

trap cleanup EXIT
cleanup() {
    set +e
    [ -z "$tmp" -o ! -d "$tmp" ] || rm -rf "$tmp"
}

unset CDPATH
pwd=$(pwd)

pushd "$tmp"
git clone https://github.com/montagejs/collections.git
cd collections
git archive --prefix="spec/" --format=tar tags/${tag}:spec/ \
    | bzip2 > "$pwd"/spec-${tag}.tar.bz2
popd