On GNOME 50, if you go to Settings - System - About - System Details you
will see a blank OS Build field. That is because IMAGE_VERSION is set to
the empty string in /etc/os-release. Use null for IMAGE_VERSION if
config.system.image.version is null.
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
A free-form `attrsOf str` option that is merged with the /etc/os-release
builder, allowing downstreams to customise arbitrary os-release fields.
This is separate from the variant option, as using an attribute set
merge means one gets an infinte recursion when making extraOSReleaseArgs
a recursive set, and the variant attribute is useful to define elsewhere
or multiple times.
Ditto for /etc/lsb-release.
Signed-off-by: Fernando Rodrigues <alpha@sigmasquadron.net>
This constraints aren't super useful because they arent really enforced
by the software, so it's hard to get them right and we've gotten them
wrong multiple times in the past. It's better to remove them altogether
in the spirit of RFC 42.
Add '~' and '^' to the supported characters for the field. These
characters are needed to be able to define all versions that are
compatible with the UAPI Version Format specification.
One example where this is used is the `%A` flag in systemd.unit. If we
don't allow these other characters, we for example cannot declare a
pre-relase version.
systemd, as far as I can tell, doesn't enforce any restrictions on the
os-release fields.
https://uapi-group.org/specifications/specs/version_format_specification/
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.
The version option is needed if you want to implement partition &
systemd-boot based A/B booting where the version information is encoded
in the files on the ESP. See systemd-sysupate docs for more details on
this:
https://www.freedesktop.org/software/systemd/man/latest/sysupdate.d.html
Note, however, that this is not *only* useful for systemd-sysupdate but
also for other similar updating tools/mechanisms.
According to the Unicode Standard, you should use U+2019 RIGHT SINGLE
QUOTATION MARK for apostrophes [1]. Before this change, some of the text
in this repo would use U+2018 LEFT SINGLE QUOTATION MARKs instead.
[1]: https://www.unicode.org/versions/Unicode15.0.0/ch06.pdf#G12411
This is a feature useful for nixos-remote and other installation tools
that try to identify if the remote machine has been successfully booted
into an installer.
If a configuration does not use services that depend on the
stateVersion, it does not need to be set.
This provides an incentive for services not to rely on
stateVersion, and not to burden users with this.
most modules can be evaluated for their documentation in a very
restricted environment that doesn't include all of nixpkgs. this
evaluation can then be cached and reused for subsequent builds, merging
only documentation that has changed into the cached set. since nixos
ships with a large number of modules of which only a few are used in any
given config this can save evaluation a huge percentage of nixos
options available in any given config.
in tests of this caching, despite having to copy most of nixos/, saves
about 80% of the time needed to build the system manual, or about two
second on the machine used for testing. build time for a full system
config shrank from 9.4s to 7.4s, while turning documentation off
entirely shortened the build to 7.1s.
This leads to inconsistent results between local builds and
Hydra. Also Nix is not a general purpose language, we shouldn't be
parsing .git from inside Nix code.
"master" is not a valid SHA-1 commit hash, and it's not even
necessarily the branch used. 'nixos-version --revision' now returns an
error if the commit hash is not known.
