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#!/bin/sh
set -e
find_root() {
local topd
if [ -z "${CLOUD_INIT_TOP_D}" ]; then
topd=$(cd "$(dirname "${0}")" && cd .. && pwd)
else
topd=$(cd "${CLOUD_INIT_TOP_D}" && pwd)
fi
[ $? -eq 0 -a -f "${topd}/setup.py" ] || return
ROOT_DIR="$topd"
}
fail() { echo "$0:" "$@" 1>&2; exit 1; }
if ! find_root; then
fail "Unable to locate 'setup.py' file that should " \
"exist in the cloud-init root directory."
fi
CHNG_LOG="$ROOT_DIR/ChangeLog"
if [ ! -e "$CHNG_LOG" ]; then
fail "Unable to find 'ChangeLog' file located at '$CHNG_LOG'"
fi
VERSION=$(sed -n '/^[0-9]\+[.][0-9]\+[.][0-9]\+:/ {s/://; p; :a;n; ba; }' \
"$CHNG_LOG") &&
[ -n "$VERSION" ] ||
fail "failed to get version from '$CHNG_LOG'"
echo "$VERSION"
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