Collects all enums and their values defined within the input proto package
that (may) represent a State. Output is CSV format
and will be written to stderr if the out_file parameter isn't specified.
Multiple runs using the same out_file appends the results of the subsequent
runs to the existing contents.
Run ./analyze.sh in the projects directory to get results. This script is
specifically meant to analyze all proto packages in google/cloud of
googleapis.
Clone googleapis and export the variable GOOGLEAPIS in your shell to avoid
repetitive downloads. The script will download and set the variable itself
if unset.