I noticed that the "Resolving deltas" step of git clones was using a maximum of 3 threads. I thought about altering the command line in git_clone_fetch_chdir to include something like: '--config', 'pack.threads=' . config('buildconf/num_procs') (See https://git-scm.com/docs/git-config#Documentation/git-config.txt-packthreads and https://git-scm.com/docs/git-index-pack#Documentation/git-index-pack.txt---t....)
But it looks like nothing inside RBM itself uses 'buildconf/num_procs', or even just 'buildconf'. It's only used by tor-browser-build files. Is there a way to use this information inside RBM, or does what I'm trying to do not make sense?
rbm.conf passes a buildconf.num_procs hash into the "c" function when computing the build_id, but I was not able to find where it might be used in the template expansion. build_id: '[% sha256(c("var/build_id_txt", { buildconf => { num_procs => 4 } })).substr(0, 6) %]' https://gitweb.torproject.org/builders/tor-browser-build.git/tree/rbm.conf?h...