release.nix and release-combined.nix current hardcode the systems which
they are built for. This change introduces an argument to the
expressions called supportedSystems, which allows the builder to choose
which architectures he wants to build. By default, this uses the same
linux x86_64 and i686 architectures.
Now you can just say:
$ nix-build '<nixos/tests/login.nix>'
You can still get the driver script for interactive testing:
$ nix-build '<nixos/tests/login.nix>' -A driver
$ ./result/bin/nixos-test-driver
You can now run a test in the nixos/tests directory directly using
nix-build, e.g.
$ nix-build '<nixos/tests/login.nix>' -A test
This gets rid of having to add the test to nixos/tests/default.nix.
(Of course, you still need to add it to nixos/release.nix if you want
Hydra to run the test.)
It's now "<yy>.<mm>pre<commit-count>.<short-hash>"
(e.g. "13.10pre5678.gfedcba") for the unstable branch, and
"<yy>.<mm>.<commit-count>.<short-hash>" (e.g. "13.10.5678.gfedcba")
for stable branches.
