* imapnotify: expose package (and exe) options
There are multiple packages that provide an imapnotify interface. Those
packages have differently named executables. This can now be customized.
This change also means test configurations can use stub packages.
* imapnotify: use/create config in configHome
Exposing the configuration file makes testing imapnotify configurations much
easier. It also allows for golden tests in home-manager.
* imapnotify: extend with launchd agent
Now that home-manager supports launchd agents, the imapnotify service
can be configured (and enabled) for darwin. The configuration matches
that of the linux/systemd version. In particular, by not setting a
`UserName`, this runs as the user whose configuration includes the
module.
Due to the launchd `Program` implementation (it must take an absolute
path) it is not possible to use that for the program and stub the path
in tests. Instead, this uses `ProgramArguments` for the program name.
The `ThrottleInterval` is equivalent to `RestartSec`. `KeepAlive` is
equivalent to `Restart`.
The `ExitTimeOut` default is 20 seconds, but goimapnotify should not
time out — this is achieved by setting the `ExitTimeout` to 0.
* imapnotify: add launchd plist test
This only tests the generated plist (which is new), not the original
systemd implementation, nor the json config file.
(Note the lack of a newline at the end of the plist file.)
This will reduce the system closure size by about 200MB under NixOS by
sharing the glibcLocales package.
When home-manager is installed on Linux without the NixOS module, all
glibc locales are installed, as before.
Resolves: #2333
We can't test for the whole contents of the config file because that is
out of our control and may change unexpectedly. Only check for the
settings we know should be set.
Starship has an advanced, experimental feature where fancy stuff in the
prompt can be replaced with something more simple after the command is
ran. This is very helpful for copy and pasting shell history somewhere
else.
docs: https://starship.rs/advanced-config/#transientprompt-and-transientrightprompt-in-fish
Fish is currently the only shell as far as I can tell that both
home-manager and starship support for this feature. Since the function
has to be called after starship is loaded, this seems like the best
place to put it.
format
* aerc: add space after definitions
* aerc: only generate files, if options were set
* aerc: improve file permission warning
* aerc: remove redundant access to builtins
* aerc: allow overwriting of derived values
the order of merging the config subsets did not allow the user to specify
outgoing, source and password command values,
if they were previously derived from the SMTP, IMAP, Maildir etc config.
The values from `account.<name>.extraAccounts` now have the highest precedence.
Appropriate tests were added as well.
* aerc: write primary account first
* sway: add support for XDG autostart using systemd
Using the option wayland.windowManager.sway.systemd.xdgAutostart, users
can now choose to start applications present in
$XDG_CONFIG_HOME/autostart when starting their sway session.
This change also renames wayland.windowManager.sway.systemdIntegration
to wayland.windowManager.sway.systemd.enable;
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
* sway: add Scrumplex to maintainers
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
---------
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
* boxxy: add module
* boxxy: added nikp123 to maintainers list
* boxxy: use mkPackageOption instead for the package
Co-authored-by: Naïm Favier <n@monade.li>
* boxxy: use yaml generator instead of json
Co-authored-by: Naïm Favier <n@monade.li>
* boxxy: various fixes
* boxxy: various fixes (part 2)
* boxxy: various fixes (part 3)
* boxxy: various fixes (part 4)
forgot to run ./format, whoops
* boxxy: use literalExpression for the rewrite example
Co-authored-by: Naïm Favier <n@monade.li>
* boxxy: add news entry
---------
Co-authored-by: Naïm Favier <n@monade.li>
* Fix espanso module to work with 2.x version
* espanso: fix espanso module
This module is currently broken. It does not create `config` and `match` folders which are required by espanso 2.x version.
This PR fixed this issue and support creating multiple files under `config` and
`match` folder.
* Espanso: fix espanso module
This module is currently broken. It does not create `config` and `match` folders which are required by espanso 2.x version.
This PR fixed this issue and support creating multiple files under `config` and `match` folder.
Add descriptions
* Add versionAtLeast and mkRemovedOptionModule
* Correct maintainers list
* remove config key from example
* format basic-configuration.nix
* Update modules/services/espanso.nix
Co-authored-by: Naïm Favier <n@monade.li>
* fix maintainers list
---------
Co-authored-by: Naïm Favier <n@monade.li>
Setting `outputSpecified` prevents `getOutput` from descending into
outputs, which don't have an overridden `outPath`.
Additionally, use `__spliced` to permit derivations to use the dummy as
an input.
Make use of the recently added nullable `mkPackageOption` feature
to disable installing an SSH client by default: most people should use
the client provided by their system.
Kitty provides integrations for bash, fish and zsh. The new
programs.kitty.shellIntegration options allow the configuration of
these integrations.
See <https://sw.kovidgoyal.net/kitty/shell-integration> for more details.
Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>
* zellij: adds options to integrate with zsh, bash and fish shells
* zellij: add tests for shell integration options
* zellij: eval setup auto start for fish integration
* zellij: use interactiveShellInit for fish integration
* zellij: fixes format issues
* zellij: enable shell integrations by default
* zellij: compresses shell integration test cases
* zellij: removes the disabled shell integration tests
* zellij: formats tests
* himalaya: add soywod to maintainers
* himalaya: make the config safer
Also added two services and more tests.
* himalaya: fix doc + typos
* himalaya: use freeform
* himalaya: run ./format
* himalaya: make use of mkPackageOption
It's pretty common to need multiple bindings to
history-substring-search, since different terminals will send different
keys for up/down.
This does not break back-compatibility, and introduces a new test
The current zplug nixpkgs puts everything under `$out/`. It pollutes the nix
profile dir.
This is a breaking change. It depends on an change of the output path in the
nixpkgs zplug package.
Virtual mailboxes (described by Notmuch queries) can now configured for each account in NeoMutt.
Plus, it is possible to disable Notmuch section for a specific account.
Without this, even if you configure a preference for Electron apps to
use Ozone by setting `NIXOS_OZONE_WL=1`, GUI apps launched through
systemd user services use XWayland, since the variable is not set in
their environment.
This fixes that issue by importing it, like we do other variables.
The previous implementation tried to rename the tag named "default" to
the first tag in `cfg.tags`. This was a wrong approach because if a
tag with the same name already existed, the renaming failed and the
default tag would continue to exist.
The looking up of the default tag also contained a bug because it
should have used `by-name` in the path.
Before this change, the default config provided by this module wrote
an empty file to `$HOME/.config/avizo/config.ini`, which caused a
bunch of errors, as Avizo tries to read a 'group' from the ini file,
which fails.
This commit also adds associated test cases.
PR #3871
The added extraConfig option allowes users to insert custom text at
the end of the generated profile `user.js` file. This allows the users
to import templates as part of their configuration.
* i3status-rust: update it to handle 0.30.x releases
0.30.0 is a major release that brings many breaking changes to the
configuration file. See:
https://github.com/greshake/i3status-rust/blob/master/NEWS.md#i3status-rust-0300
The only one that actually affects the module though is the change in
how the theme/icons are defined. Other changes are mostly on how to
specify formatting/blocks, and since we just generate the TOML as-is, it
needs changes in the user side.
So most changes in this commit are documentation updates, having
up-to-date examples from things that changed, e.g.: the new `click`
attribute that now can be applied to any block.
* i3status-rust: only use new format if i3status-rust >= 0.30.0
* news: document the i3status-rust changes
* i3status-rust: add thiagokokada as maintainer
This command adds the ability to specify lists of qutebrowser
commands as values for key bindings, which avoids the need for
concatenating commands with ` ;; `.
Added a generator for the KDL document language.
This is in order for home-manager to natively generate
the new config format for zellij, as described in nix-community#3364.
There is not a one to one mapping between KDL and nix types,
but attrset translation is heavily based on KDLs JSON-IN-KDL microsyntax.
The exception here is the `_args` and `_props` arguments, which lets you
specify arguments and properties as described in the spec.
See more here:
- https://kdl.dev/
- https://github.com/kdl-org/kdl/blob/main/SPEC.md
The generator also conforms to the interface from the nixpkgs manual:
https://nixos.org/manual/nixpkgs/stable/#sec-generators
Co-authored-by: Gaetan Lepage <gaetan@glepage.com>
Firefox internally only supports bool, int, and string types for
preferences, but often stores objects, arrays and floats as strings.
This change makes it nicer to specify those type of preferences in
Nix, and it also makes it possible to merge objects & arrays across
multiple modules.
This reflects a systemd service sample file change made in borgmatic
1.7.6, commit 2e9f70d49647d47fb4ca05f428c592b0e4319544:
When backing up a machine with a monitor using logind to control
idle timeout and things like DPMS, borgmatic can block the screen
from turning on/off with systemd-inhibit. This is because by
default systemd-inhibit will block
"idle:sleep:shutdown". Borgmatic does not need to care about idle,
only about suspend and shutdown. So, add an explicit `--what` flag
for what borgmatic should inhibit.
For more information see systemd-inhibit(1).
Allow setting the application package and storePath used by the
config. Since the `programs.password-store` Home Manager module sets
config values via global environment variables, the default behavior
of the module should continue to behave as before for the user.
Additionally,
- Adds a few tests.
- Use "escapeShellArg" function call to the path parameter call to
ensure paths with spaces work.
- Allow not setting storePath, which will cause `pass_secret_service`
to default to using `~/.password-store`.
- If `pass-secret-service` is enabled, set its store path to default
to the one defined in our password-store environment settings.
- Add myself (houstdav000) as maintainer.
The default value of `programs.ncmpcpp.mpdMusicDir` is taken from
`services.mpd.musicDirectory` if the mpd module is enabled, which has
type `either path str`. `programs.ncmpcpp.mpdMusicDir` did not accept
`str` values, though, so an error was raised when the default value was
used and `services.mpd.musicDirectory` was set to a value of type `str`.
This commit changes the type of `programs.ncmpcpp.mpdMusicDir` to also
accept `str` to reflect the type of `services.mpd.musicDirectory`.
Fixes#3560
Assigning to `programs.neovim.extraLuaPackages` a function taking a lua package set as input
and returning a list of packages, as described in the documentation,
threw an error because the rest of the code assumed that the value was always a plain list.
Using `lib.types.coercedTo`, we can accept such functions, as per the documentation,
as well as plain lists, which we then convert to a function ignoring its input argument.
We print a warning when a plain list is assigned, since the function
form is preferred, as it ensures that the right lua package set is used.
For the lua packages, we also get the lua package set from the
finalPackage, to make sure that we are always using the same package set
as the actual unwrapped neovim package being built.
For `programs.neovim.extraPythonPackages` I did the same.
I updated the test case so that we test both ways of setting these options.
This enables nushell integration by default for direnv, similar to
bash/zsh/fish. The slightly verbose way of setting this is to ensure
that peoples' existing nushell configuration isn't overwritten, only
appended to, as would be the case if we just used the integration
example from the nushell docs:
https://www.nushell.sh/cookbook/direnv.htmlCloses#3520
Previously the nushell module did not differentiate between Linux and
Darwin when deciding where to place config files, whereas nushell
does. This commit fixes that.
The default value for `xsession.windowManager.herbstluftwm.tags` is an
empty list, but the config file uses `builtins.head` on it, which causes
an error upon evaluation. With this change the tags configuration is
skipped if the list is empty.
The old trigger would actually never cause a restart since the path
doesn't change. With this change the trigger is now using the actual
configuration path in the Nix store, which depends on the content.
The previous version linked the file into home, then sourced that. Since
nothing else expects that file to be there, this is unnecessary.
Additionally, doing so made it impossible to test a built config without
switching, e.g. using `XDG_CONFIG_HOME=… nvim` or `nvim -u`. This
remedies that, at least for this particular reference.
To test this, change from asserting contents of the config file to
actually starting nvim, outputting sentinel values, and then asserting
their values are present. This way it’s tested that nvim loaded the
config, rather than that some config is in a specific place.
This is all in one commit as the test, as written now, would not have
worked before since the previously hard-coded home path was not an
actual file in the test environment.
* ssh: add generic Match support for matchBlocks
Introduce conservative support for actual `Match`
blocks in ssh config.
"Conservative" means this PR doesn'tt try to process
the `match` expression and simply uses it as a string
provided by the user.
If set, `match` has precedence over `host` meaning
if both are set, `match` is used and `host` is ignored.
* Add news entry
* flake: Expose tests to allow running purely
The existing way to run tests with `nix-shell` relies on impure usage of
`<nixpkgs>`. This can lead to failures when the local nixpkgs is
incompatible with the locked one. I.e., where CI is passing but a
contributor may experience a failure.
So, expose tests as `devShells.tests` to use the locked nixpkgs and
allow easy invocation via `nix develop`.
* tests: Remove impure path
With Nix 2.10+ and pure evaluation mode e.g.
```
nix run nixpkgs/nixos-unstable#nixVersions.nix_2_10 -- develop -i .#tests.zplug-modules
```
this test would fail with:
> error: the path '~/.customZplugHome' can not be resolved in pure mode
Since the test only cares that it is a path, rather than anything about
its contents, use a dummy empty directory.
`--experimental-backends` flag was removed in the recent released picom
v10. Using it now will result in the program exiting.
v10 also introduces its counter-part, `--legacy-backends`. However this
will be removed soon. Instead of adding this as an separate option, add
`extraArgs` option so for those that they want they can pass it manuall.
It is also more future proof.
Previously, this module was all-or-nothing with its pre-defined user
dirs. This allows e.g. `xdg.userDirs.desktop = null;` to opt-out of
some configuration while still benefiting from the rest.
Add a new Thunderbird module that uses the configuration in
`accounts.email.accounts` to setup SMTP and IMAP accounts.
Multiple profiles are not supported at this point.
- The `XDG_SESSION_TYPE` environment variable is used by some applications and frameworks to
detect wayland sessions (i.e qt5/6, electron/chromium). It is set by wlroots since version 0.13.0 [1].
- Propagating `XDG_SESSION_TYPE` to the systemd user environment is necessary when processes launched by
services (e.g emacs) need to inherit the environment variable.
[1] - 90c8452959
Update notification popups are annoying when vscode/vscodium is
managed by Home Manager. However, as these settings also require the
configuration to be managed via `userSettings`, they are disabled by
default.
With this change, it's now possible to configure the default search
engine in Firefox with
programs.firefox.profiles.<name>.search.default
and add custom engines with
programs.firefox.profiles.<name>.search.engines.
It's also recommended to enable
programs.firefox.profiles.<name>.search.force = true
since Firefox will replace the symlink for the search configuration on
every launch, but note that you'll loose any existing configuration by
enabling this.
This will cache the output of `passwordCommand` per authentication
realm.
Context: the `credentials` key in `sbt` is a `TaskKey[Seq[Credentials]]`.
In `sbt`, tasks are evaluated on-demand and their output is not cached.
This particular key is referenced by all submodules in a project. When
the command is relatively expensive (e.g.: `pass show foo`), this
results in several seconds of delay when doing basic things like
`compile` or `test` which makes this unusable without some kind of
caching.
sbt allows overriding the default repositories to use to resolve
dependencies. This is often used with proxies and/or private
repositories to host internal packages.
This change adds a `repositories` attribute to `sbt` to allow
specifying the values that will go in `~/.sbt/repositories` file.
To support the above change we also deprecate the `baseConfigPath`
option in favour of `baseUserConfigPath` which points one level higher
by default. This allows not using relative paths to refer to the
top-level configuration directory.
Also adds tests for the new option and the deprecation of the previous
one.
At commit [5666e6b9](5666e6b9fb),
broot refactored the content of the file `/resources/default-conf.hjson`
into multiple files under the directory `/resources/default-conf`, using
[`imports`](5666e6b9fb/resources/default-conf/conf.hjson (L152-L165))
to refer to other configurations.
This refactoring is effective since version 1.14.0 of broot.
After this refactoring, in `xdg.configFile.broot` (which defaults to
`~/.config/broot`):
- we need to copy all potentially referenced files (all files under
`resources/default-conf`),
- except we need to leave out `conf.hjson` which conflicts with the
`conf.toml` generated by home-manager (because broot [accepts both conf.toml and conf.hjson](https://dystroy.org/broot/conf_file/))
To implement this, we use `symlinkJoin` to create the content of
`xdg.configFile.broot` by merging multiple sources.
* broot: use freeformType for config
* broot: use defaults from upstream
closes#2395
* broot: generate shell function
* broot: add @dermetfan to CODEOWNERS
* broot: rename `config` option to `settings`
* broot: make example more idiomatic
Co-authored-by: Nicolas Berbiche <nic.berbiche@gmail.com>
Co-authored-by: Nicolas Berbiche <nic.berbiche@gmail.com>
We change the current logic: instead of writing an init.vim which loads
lua/init-home-manager.lua, we write an init.lua that sources init.vim
This commit also avoids writing any of these files if the plugins have
no config.
Some configuration options can take space separated strings; for
example `SSLVersions` can be configured with multiple allowed
versions.
SSLVersions TLSv1.3 TLSv1.2
This can now be represented in Home Manager.
SSLVersions = [ “TLSv1.3” “TLSv1.2” ];
In implementing this change, it uses oneOf for config type, as it is a
cleaner way to represent the union than the nested eithers
formulation.
Also add SSLVersions to test lists of strings in
`account.extraConfig`.
If the user has enabled the XDG user directories module then we can
use the XDG music directory in the MPD module. Otherwise we'll leave
the option undefined so that the user is forced to define the
directory to use.
This applies to state version 22.11 and above.
Fixes#3225
The `tag.gpgSign` config option was added in Git 2.23.0 and seems like
it should be set in addition to `commit.gpgSign` when
`programs.git.signing.signByDefault` is enabled
This adds support for configuring email accounts, with automatic smtp, imap,
sendmail (msmpt) and maildir (mbsync, offlineimap) setup in aerc,
via `accounts.email`.
swayidle executes commands using "sh -c" and so its PATH must contain
a shell. This adds such PATH entry to the environment of the systemd
service.
Fixes#2811.
Removes the `uniq` constraint on `after` and `before` so that we can
merge multiple definitions for the same DAG entry:
{
dag = mkMerge [
{
foo = lib.hm.dag.entryBefore [ "bar" ] {
# definition 1
};
}
{
foo = lib.hm.dag.entryBefore [ "qux" ] {
# definition 2
};
}
{
foo = {
# definition 3
};
}
];
}
In this example `foo` will come before `bar` and `qux`.
This brings a few advantages:
- Use of float instead of strings to represent float values,
- Use of structure settings, and
- Better type checking for some settings
Also add thiagokokada as codeowner of picom.
This simplifies the code a bit and avoids using experimental Flake
functionality. If Flakes become stable before NixOS 22.11 then we can
consider having nmd and nmt as Flake inputs. Maybe could then also
avoid the need for flake-compat.
mujmap is a tool that synchronizes mail between a mail server and
notmuch via JMAP. It's very similar to lieer, so I heavily based the
implementation of the notmuch module on lieer's. I did not include an
equivalent to lieer's periodic synchronization service, however,
because I plan to soon introduce a daemon mode to mujmap.
https://github.com/elizagamedev/mujmap
The user should always explicitly set the state version they wish to
use. Indeed, the configuration generated by the Home Manager install
script has set this option for a long time. This removal should
therefore not affect many users.
Add services.emacs.startWithUserSession boolean to indicate that Emacs
must be started with the systemd user session. This is true by default
unless socket activation is also true.
In the past, the user had to choose between socket activation (to get
the Emacs service started when the user uses emacsclient) and
immediate start with the user session. When choosing immediate start
over socket activation and if the Emacs service is stopped at some
point, using emacsclient would start a new Emacs daemon but the
service would still be turned off. This situation would prevent
`home-manager switch` from completing successfully because it wouldn't
be able to start the Emacs service as Emacs is already running.
This new setting makes it possible to have both socket activation and
immediate start at the same time. In this scenario, Emacs is started
with the user session and, after the Emacs service is stopped, using
emacsclient starts the service again.
This new settings also makes it possible to have neither socket
activation nor immediate start.
* Add flake.lock and clean up flake.nix
Add a lockfile to work around https://github.com/NixOS/nix/issues/6541
(and because it's a good idea anyway).
Also use flake-utils, and restrict ourselves to the five platforms
supported by nixpkgs. Otherwise, the IFD for nmd fails on weird
platforms. This fixes `nix flake check`.
Remove the redundant `apps` output, see https://github.com/nix-community/home-manager/pull/2442#issuecomment-1133670487
* nixos,nix-darwin: factor out into a common module
* nixos,nix-darwin: make `home-managers.users` shallowly visible
Make sure the option is included in the NixOS/nix-darwin manual (but the
HM submodule options aren't).
Also add a static description to the HM submodule type so that we don't need to
evaluate the submodules just to build the option manual. This makes
nixos-search able to index the home-manager flake.
Also clean up some TODOs.
* flake: add nmd and nmt
This avoids having to use `pkgs.fetchFromGitLab` in an IFD, which causes
issues when indexing packages with nixos-search because `pkgs` is
instantiated with every platform.
M_SHARE is not a valid column on Darwin. It seems that previously htop
ignored unknown columns, but the current version does not display all
subsequent columns.
This is adapted from the `services.mopidy` NixOS module. The
difference is the setting can be configured with Nix language, taking
advantage of generators from nixpkgs. The module is also suited more
for user-specific configuration, removing the `extraConfigFiles` and
`dataDir` option.
This module adds basic support for configuration specializations.
These allow the user to build multiple alternative configurations that
should be part of the same generation.
Neomutt will run the given command (which can be a string or a path)
and take the output from stdout and use it as the signature for your
email.
Co-authored-by: Nicolas Berbiche <nicolas@normie.dev>
Removed by upstream since commit:
bcbc410c92
This commit is included since v9 release:
https://github.com/yshui/picom/releases/tag/v9https://github.com/yshui/picom/releases/tag/v9-rc1 (the actual changelog)
While this doesn't break the config per see, it results in the
following warning in the logs:
[ DD/MM/YYYY HH:MM:SS.mmm parse_config_libconfig WARN ] The
refresh-rate option has been deprecated. Please remove it from
your configuration file. If you encounter any problems without
this feature, please feel free to open a bug report
Beside the above change we also remove an old workaround and also
write the configuration file to a well-known location in the user's
home directory.
This is achieved by generating the Home Manager configuration
file as `~/.config/task/home-manager-taskrc`, and including that
file into ~/.config/task/taskrc.
Fixes#2360
Co-authored-by: mainrs <5113257+mainrs@users.noreply.github.com>
Co-authored-by: Nicolas Berbiche <nicolas@normie.dev>
* systemd: fix creation of user service unit files
* helix: fix failing test due to file output format change
Co-authored-by: Nicolas Berbiche <nicolas@normie.dev>
This makes definitions like
home.activation.foo = mkIf false "bar"
work, where previously they would complain about
`home.activation.foobar.data` being used but not defined.
The crucial part is that we don't call `convertAllToDags` in
`dagOf.merge`, because we need to process `mkIf`/`mkMerge` properties
first. So we let `attrEquivalent.merge` do its job normally, but give
it a type `dagEntryOf` that does the conversion.
Ideally this shouldn't require so much boilerplate; I'd like to
implement something like
types.changeInto dagContentType elemType dagEntryAnywhere
in Nixpkgs.
The conversion from `concatMapStrings` to `concatStringsSep` introduced in https://github.com/nix-community/home-manager/pull/2481
creates an unintended behavior change where the formatted config does not end in a newline.[1]
This is problematic for manipulation at the Nix level. In particular, this cause a regression in
the generation of gtk2 settings due to concatenated of the formatted config and `gtk2.extraConfig`
without a newline in between.
This commit restores `concatMapStrings` to match the previous behavior and adds a newline to
the final string for the generated gtk2 config. The test case for gtk2-basic-config
was also updated to check behavior at concatenation boundaries.
[1] - https://github.com/nix-community/home-manager/pull/2481#discussion_r830648706
If set to true, desktops configured in `monitors` will be reset every time
the config is run.
If set to false, desktops will only be configured the first time the config is run.
This is useful if you want to dynamically add desktops and you don't want them
to be destroyed if you re-run `bspwmrc`.
Nix permits user level configurations through ~/.config/nix/nix.conf that allow
customization of system-wide settings and behavior. This is beneficial in chroot
environments and for per-user configurations. System level Nix configurations in the
form of /etc/nix/nix.conf can be specified declaratively via the NixOS nix module but as
of currently no counter part exists in home-manager.
This PR is a port of the RFC42 implementation for the NixOS nix module[1]
to home-manager. Non-applicable options have been excluded and the config generation
backends have been tweaked to the backends offered by home-manager. A notable change
from the NixOS module is a mandatory option to specify the Nix binary corresponding
to the version "nix.conf" should be generated against. This is necessary because
the validation phase is dependent on the `nix show-config` subcommand on the host platform.
While it is possible to avoid validation entirely, the lack of type checking was deemed too significant.
In NixOs, the version information can be retrieved from the `package` option itself which
declares the Nix binary system-wide. However in home-manager, there is no pure way to
detect the system Nix version and what state version the "nix.conf" should be generated
against. Thus an option is used to overcome this limitation by forcing the user to
specify the Nix package. Note this interaction can still be automated by forwarding
the system-wide Nix package to the home-manager module if needed.
Three unit tests were added to test the module behavior for the empty settings, the example
settings and the example registry configurations respectively.
[1] - NixOS/nixpkgs#139075
