Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:
nix-build ci -A fmt.check
This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).
This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).
Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](8616af08d9/maintainers/scripts/auto-rebase).
If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.
this assertion broke gnome sessions in very hard to debug way:
- gdm starts, but on successful login just returns to login screen
- journalctl isn't exactly helpful in this condition:
- a typical gnome login will involve many warnings and errors, that
aren't actually preventing login, but will lead affected users
on a merry chase for many hours
- the actual indicators in the log arent't even an errors, only info and warning
- graphical-session.target: Starting requested but asserts failed.
- Assertion failed for Current graphical user session.
startx is a power tool for power users, needing a certain level of
expertise for the user to even want it, let alone use correctly.
However, the expectation is, that the necessary expertise will be
contained within the domain of startx and that it not break tools for
regular users.
This partially reverts commit e1c3082085.
There are some common pitfalls and no documentation around how to write
the .xinitrc to correctly start the window manager, the systemd
graphical session and, ideally, cleaning up afterwards.
To improve the user experience around startx this change:
1. Adds two options to generate a sane default script and extend
it declaratively from NixOS.
2. Adds assertions to graphical-session.target so that it will fail
clearly and immediately when users writing their own script forget to
import the necessary environment variables.
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
We introduced the gdm-fingerprint.pam in 9d41fe6fcc.
We used the [upstream Arch config] as a template, which contains an extended control field that jumps over **one** immediately-following `auth` rule unless `pam_gdm.so` succeeds.
But we decided to not include `pam_gnome_keyring.so` so there was no rule to skip over, resulting in a broken control flow and the PAM module failing with “PAM bad jump in stack”, breaking the fingerprint authentication in GDM.
Let’s actually add `pam_gnome_keyring.so`, like the Arch config does. Because we are creating the PAM file using the `text` option, `security.pam.services.gdm-fingerprint.enableGnomeKeyring` does not do anything so we need to do it manually.
For the case where gnome-keyring is not enabled, we could add a no-op rule like `optional pam_permit.so` after `pam_gdm.so` so that the branching always has something to jump over but it will be simpler to just make the both conditional. There are no further `auth` rules that could benefit from `pam_gdm.so` doing something so it should be fine.
Unlike in Arch, we are not going to invoke `pam_gnome_keyring.so` in a `session` rule since that is already done by the included `login` module.
[upstream Arch config]: 81ee658c11/data/pam-arch/gdm-fingerprint.pam
The `optional pam_permit.so` comes from the [upstream Arch config] we used as a template in 9d41fe6fcc. But I do not think it does anything in this position – see also the discussion at https://bbs.archlinux.org/viewtopic.php?id=245892 – so let’s just remove it.
Let’s also add a comment about disabling `fprintAuth` and a blank line for clarity.
[upstream Arch config]: 81ee658c11/data/pam-arch/gdm-fingerprint.pam
These have been deprecated since NixOS 20.03.
Also fixes evaluation error caused by moving
the `defaultSessionFromLegacyOptions` variable
in 6be2bfcc32
these changes were generated with nixq 0.0.2, by running
nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix
two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.
Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
