Loading corpus inputs from a (compressed) archive.

[zhenyudg]

As a result of increased fuzzing in our organization, we now have thousands of fuzz corpus files (admittedly a good problem to have :) Currently, we individually store all of these corpus files and pass them to cc_fuzz_test's corpus = glob(["my-corpus-directory/*"]).

Given the proliferation of corpus files, we are interested in storing fuzz corpora in compressed archives (say, as a single corpus.tar.gz for every cc_fuzz_test). Are there existing Bazel rules that can help us feed a compressed archive to cc_fuzz_test's corpus parameter? Alternatively, can we extend rules_fuzzing to support, say, corpus_archives = ["corpus.tar.gz"]?