On Thu, Nov 10, 2022 at 09:48:38AM -0800, Glen Choo wrote: > Taylor Blau <me@xxxxxxxxxxxx> writes: > > >> * How could we set up end-to-end tests to ensure that we're testing > >> this against affected versions of curl? To avoid regressions, I'd > >> also prefer to test against future versions of curl too. > > > > Does that necessarily matter? We want to make sure that we don't see > > sensitive headers from the h2h3 module with any version of cURL, no? > > It would help, but it might not be worth setting up infrastructure for > just this use case alone. Given the various platforms running tests > against the Git codebase, we probably get close to a representative > sample of the population with enough time. > > I think it would be more important to have tests against HTTP/2.0. If we > did, we probably would have already caught this, e.g. > t/t5551-http-fetch-smart.sh:'GIT_TRACE_CURL redacts auth details' and > friends. There's some discussion in b66c77a64e (http: match headers case-insensitively when redacting, 2021-09-22) about testing with HTTP/2. Which ironically is basically this exact same bug in a different form. ;) The short answer is that it's do-able, but probably there are some headaches to make it work portably. I agree with you that trying various curl versions isn't worth doing. If enough people/platforms run Git's suite, one of them will eventually see the problem. -Peff