Go packages for working with Catapult.
Convert Fuchsia performance test output into a HistogramSet for the Catapult dashboard:
catapult make_histogram --datetime=1234455667789 --test-suite=fuchsia.example.benchmark --builder=fuchsia.example.builder --bucket=fuchsia.example.bucket /path/to/test_results.json > histogram_set.json
Upload a file containing a HistogramSet to the Catapult dashboard:
catapult upload --url=https://chromeperf.appspot.com/add_histograms --service-account-json=/path/to/acccount.json histogram_set.json