Automated consumers can use 'sed 1d' or similar to remove this header.
This probably makes this output *easier* to consume correctly. Having
this header show up in consumers' terminal or log output is probably not
useful, but hiding it without hiding all error messages would have been
more troublesome that just stripping it from stdout.
I.e., previously, unsophisticated use would show undesired output:
$ some-other-tool
This attribute set contains:
This attribute set contains:
This attribute set contains:
This attribute set contains:
<Actual some-other-tool output>
The simplest way to hide this undesired output would have been
nixos-option ... 2>/dev/null, which would hide all error messages.
We do not wish to encourage that.
Correct use would have been something like:
nixos-option ... 2> >( grep --line-buffered -v 'This attribute set contains:')
After this change, correct use is simpler:
nixos-option ... | sed 1d
or
nixos-option ... | sed '1/This attribute set contains:/d'
if the caller don't know if this invocation of nixos-option will yield
an attribute listing or an option description.
Switch from convention "appease clang-tidy --checks='*'" to
"References are like non-nullptr pointers". The clang-tidy check
"google-runtime-references" complains about non-const reference
arguments, but this is not a convention used in Nix.
Switch from convention "appease clang-tidy --checks='*'" to
"References are like non-nullptr pointers". The clang-tidy check
"google-runtime-references" complains about non-const reference
arguments, but this is not a convention used in Nix.
Switch from convention "appease clang-tidy --checks='*'" to
"References are like non-nullptr pointers". The clang-tidy check
"google-runtime-references" complains about non-const reference
arguments, but this is not a convention used in Nix.
I don't think this matters. As long as one or the other of these is
a std::string, I get an operator== that looks at content rather than
pointer equality. I picked casting the constant over casting the dynamic
thing in hopes that the compiler would have a better chance at optimizing
away any runtime cost.
Deferring to reviewer.
This is important because this contains some code copied from nix (as an
interim expediency until that functionality can be exported via nix's
API). The license specified here must be compatible with this borrowing.
Select the same license that nix is released under: lgpl2Plus.
Specifically, with
clang-format --style='{ IndentWidth: 4, BreakBeforeBraces: Mozilla, ColumnLimit: 120, PointerAlignment: Middle }'
which was the clang-format invocation that produced the fewest diffs on
the nix source out of ~20 that I tried.
Also add --all, which shows the value of all options. Diffing the --all
output on either side of contemplated changes is a lovely way to better
understand what's going on inside nixos.
This adds support for deploying to remote hosts without being root:
sudo nixos-rebuild --target-host non-root@host
Without this change, only root@host is able to deploy.
The idea is that if the local command is run with sudo, so should the
remote one, thus there is no need for adding any CLI options.
Slim is abandoned and won't work with wayland.
It's in our best interest to use the display-manager
that makes most sense for Plasma5, sddm.
We've already moved on from it being default in #30890
and the graphical.nix profile, which the virtualbox profile uses,
has sddm anyway.
I have `users.defaultUserShell = pkgs.fish;` set on my server and when I ran `nixos-rebuild switch --target-host …`, the command failed with the following error:
fish: Unsupported use of '='. To run 'nix-store' with a modified environment, please use 'env PATH=… nix-store…'
That is because fish requires env to set environment variables for a program. It should also work on other shells.
This sets networking.useDHCP to false and for all interfaces found the
per-interface useDHCP to true. This replicates the current default
behaviour and prepares for the switch to networkd.
There's many reason why it is and is going to
continue to be difficult to do this:
1. All display-managers (excluding slim) default PAM rules
disallow root auto login.
2. We can't use wayland
3. We have to use system-wide pulseaudio
4. It could break applications in the session.
This happened to dolphin in plasma5
in the past.
This is a growing technical debt, let's just use
passwordless sudo.
This will keep configuration configuring the size of the /boot partition
still build, while showing the deprecation warning.
In 99.9% of cases I assume ignoring the configuration is better, as the
sd-image builder already is pretty opinionated in that matter.
The slack, seemingly, accounted for more than the minimum required for
slack plus the two partitions.
This change makes the gap a somewhat abstracted amount, but is not
configurable within the derivation.
The current FAT32 partition is kept as it is required for the Raspberry
Pi family of hardware. It is where the firmware is kept.
The partition is kept bootable, and the boot files kept in there until
the following commits, to keep all commits of this series individually
bootable.
Up until now, the output has been the same for swap devices and swap
files:
{ device = "/var/swapfile"; }
Whereas for swap *files* it's easier to manage them declaratively in
configuration.nix:
{ device = "/var/swapfile"; size = 8192; }
(NixOS will create the swapfile, and later resize it, if the size
attribute is changed.)
With the assumption that swap files are specified in configuration.nix,
it's silly to output them to hardware-configuration.nix.
This will reduce the confusion at boot, where the only thing visible is
the last message from u-boot; where it looks like the board is
hung, while in reality it's likely resizing partitions.
This will reduce the confusion at boot, where the only thing visible is
the last message from u-boot; where it looks like the Raspberry Pi is
hung, while in reality it's likely resizing partitions.
Add "bcache" to boot.initrd.availableKernelModules if a bcache device is
detected.
This fixes a problem I've had one too many times: I install NixOS and
forget to add "bcache", resulting in an unbootable machine (until fixed
with Live CD). Now NixOS will do it for me.
cross-compilation of `btrfs-tools` is broken, and this usually needless dependency of each system closure on `btrfs-tools` prevents cross-compilation of whole system closures
Copy-paste from iso-image.nix
Besides the simplification, it should use `pkgs.buildPackages.squashfsTools` because it is used in `nativeBuildInputs` instead of incorrect `pkgs.squashfsTools` which was forced by `import'
Prior to this commit an installation over serial via syslinux would
involve:
1. setting bitrate to BIOS's bitrate (typically 115200)
2. setting bitrate to syslinux's bitrate (38400)
3. setting bitrate to stty's bitrate (115200)
By changing syslinux's bitrate to 115200, an installation over serial
is a smoother experience, and consistent with the GRUB2 installation
which is also 115200 bps.
[root@nixos:~]# stty
speed 115200 baud; line = 0;
-brkint ixoff iutf8
-iexten
In a future commit I will add default serial terminals to the syslinux
kernel lines.
