Generate version from git

Fixes #3

bin/gen-version

@@ -0,0 +1,29 @@
+#!/bin/sh
+# -*- coding: utf-8 -*-
+#
+# 2019 Nico Schottelius (nico-ucloud at schottelius.org)
+#
+# This file is part of ucloud.
+#
+# ucloud is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# ucloud is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with ucloud. If not, see <http://www.gnu.org/licenses/>.
+#
+#
+
+
+# Wrapper for real script to allow execution from checkout
+dir=${0%/*}
+
+# Ensure version is present - the bundled/shipped version contains a static version,
+# the git version contains a dynamic version
+printf "VERSION = \"%s\"\n" "$(git describe)" > ${dir}/../ucloud/version.py