Detected by `gcc` as:
CXX src/libstore/profiles.o
src/libstore/profiles.cc: In function 'void nix::deleteGenerationsGreaterThan(const Path&, GenerationNumber, bool)':
src/libstore/profiles.cc:186:50: warning: comparison of integer expressions of different signedness: 'int' and 'nix::GenerationNumber' {aka 'long unsigned int'} [-Wsign-compare]
186 | for (auto keep = 0; i != gens.rend() && keep < max; ++i, ++keep);
| ~~~~~^~~~~
Was confused why `make html` didn't work while working on #9032, but
then I realized that after this section was written, the target was
renamed to `manual-html` in 6910f5dcb6.
Before they were an "ad-hoc" header with bold and a colon; now they are
a proper subheader.
For the man pages, this doesn't make much of a difference, but it will
help more on for the HTML manual, where things can be restyled. Again,
good separation of content vs presentation.
Behavior change:
Before we only showed uption if the command-specific options were
non-empty. But that is somewhat odd since we also show common options.
Now, we do everything based on the union of both sorts of options (with
hidden-categories filtered, as before).
Implementation change:
The JSON dumping once again includes all options; the filtering of
hidden categories is done in the Nix instead. This is better separation
of "content" vs "presentation", and prepare the way for the HTML manual
vs manpages / `--help` doing different things.
We will soon add a new implemenation so the one for NARs in `archive.cc`
isn't the only one.
Co-Authored-By: Matthew Bauer <mjbauer95@gmail.com>
Co-Authored-By: Carlo Nucera <carlo.nucera@protonmail.com>
It was disabled in c6953d1ff6 because
a recent Nixpkgs bump brought in a new systemd which changed how
systemd-nspawn worked.
As far as I can tell, the issue was caused by this upstream systemd
commit:
b71a0192c0
Bind-mounting the host's `/sys` and `/proc` into the container's
`/run/host/{sys,proc}` fixes the issue and allows the test to succeed.
https://hydra.nixos.org/build/235888160
This is needed because Nixpkgs now contains dangling symlinks
(pkgs/test/nixpkgs-check-by-name/tests/symlink-invalid/pkgs/by-name/fo/foo/foo.nix).
This is broken because of a change in systemd in NixOS 23.05. It fails
with
Failed to mount proc (type proc) on /proc (MS_NOSUID|MS_NODEV|MS_NOEXEC ""): Operation not permitted
there is a very confusing warning in the Nixpkgs manual that
mischaracterises `nix-env` behavior, and this example shows what's
really happening.
note that it doesn't use `pkgs.runCommand` or other `pkgs.stdenv`
facilities, as deep down those set `meta.outputsToInstall` to very
particular defaults that do not generally apply to Nix.
Maximilian Bosch