Write a new variables file called "etc/scons/developer_versioning.vars" that sets MONGO_VERSION using the latest git tag and MONGO_GIT_HASH with some string constant. It may look something like this:
import os import subprocess def short_describe(): import os import subprocess with open(os.devnull, "r+") as devnull: proc = subprocess.Popen("git describe --abbrev=0", stdout=subprocess.PIPE, stderr=devnull, stdin=devnull, shell=True) return proc.communicate()[0].decode('utf-8').strip()[1:] MONGO_GIT_HASH="unknown" MONGO_VERSION=short_describe()