add targets to serve the site locally

import the capsule/website

add .cirrus.yml Add a cirrus CI config file that runs the regression suite on linux amd64/aarch64 and on freebsd.

re-add sha script; it's used in the Makefile While there, use it in the tests too

sync changelog

reduced the timeout time for single checks

copy only `len' bytes, not the whole buffer We ended up copying too much data from the fastcgi process.

allow running only specific tests It's now possible to run only a subset of the tests with: ./runtime test1 test2 ...

sync

remove unused script

rework the regression suite The tests are still there, the suite is equivalent to the old one, but this one is better structured. The biggest annoyance I had with the old one was that it wasn't straightforward to test only a specific set of tests. It's still impossible, but it's way easier to do it now. This extract all the tests to their own functions. It's overall better in all possible regards.

update clean target

sync

libevent2 fix: unfreeze the client evbuffer libevent2 has this concept of "freezeness" of a buffer. It's a way to avoid accidentally write/remove data from the wrong "edge" of the buffer. The client_tls_{read,write} functions need to add/drain data from the opposite edge, hence the need for the unfreeze call. This is the minimum change in order to work on libevent2 too. Another way would be to define evbuffer_{un,}freeze as NOP on libevent 1, but it's ugly IMHO.

improve libevent2 handling * add configure check * change the way the headers are required (copied from tmux)