* bspwm: various improvements
- fixes shell escaping issues and general style issues
- allow reloading the config on-the-fly by exposing bspwmrc to the user
* bspwm: add configuration test
- Add support for showing bold as bright colors
- Add support to configure the background transparency
- Fix the scrollOnOutput, it was not being dumped to the config
- Add tests!
- Add myself as maintainer
NixOS/nixpkgs@03310df843 disabled flake
support by default, so we now need to build a custom package and use it
if the user wants to `use flake` successfully. This should fix#2087.
* irssi: add ssl_cert option for servers
I was following these instructions
https://www.oftc.net/NickServ/CertFP/
and found that the `/server add -ssl_cert` option was needed.
This patch therefore adds an optional
`programs.irssi.networks.<name>.server.ssl.certificateFile` path.
Perhaps this could also be done with a `settings` attribute, but that
would probably require most of this module to be reworked.
* irsii: Add example-settings test case
`rbw` is a stand-alone Bitwarden client, which makes use of a daemon to
cache your password and manage state.
Its configuration can be managed by `home-manager` or not, leaving the
user free to configure it through `rbw config`.
When running a socket-activated emacs service, we don't want emacs to
remove the socket file after exiting, because then subsequent
invocations of `emacsclient` won't be able to use the socket to start
emacs.service again.
Emacs 27 added Type=notify support and updated the service definition to
remove the use of `emacsclient' to kill the service. Emacs 28 changes
the `StartupWMClass' in emacsclient.desktop to `Emacsd'. Update our
emacs.service and emacsclient.desktop definitions to match upstream
changes.
When killing emacs.service, the socket is removed, and subsequently
starting the service manually results in a service without a socket.
Prevent this by adding `RefuseManualStart=true' to the service's Unit
definition.
Drop Emacs 26 support as it is no longer shipped in nixpkgs. Update the
tests to verify the following configuration scenarios:
- Emacs version: 27, 28
- Socket activation: disabled, enabled
* xdg-desktop-entries: add module
rebase
* xdg-desktop-entries: adapt to changes in makeDesktopItem
This package depends on the makeDesktopItem function in nixpkgs, which recently changed its syntax:
https://github.com/NixOS/nixpkgs/pull/91790
This commit makes the module compatible with the new syntax.
It also exposes the fileValidation option in makeDesktopItem.
Co-authored-by: cwyc <cwyc@users.noreply.github.com>
Co-authored-by: --get <--show>
Pass meters for formatting in a list of attrsets so that ordering can be
preserved. In addition provide some mode-specific functions to create these
attrsets, to make for a bit nicer config.
This fixes#2060.
* isync/mbsync: replace master/slave with far/near
isync/mbsync: update tests to match new changes
* isync/mbsync: use mkRenamedOptionModule to alert user to near/far change
* isync/mbsync: use warnings to alert about master/slave far/near change
Fix capitalization
isync/mbsync: fix nitpicks
* isync/mbsync: run format script
* isync/mbsync: include new test for expected master/slave warnings
* isync/mbsync: add news about changes
* htop: add some missing meters
* htop: replace individual options with 'settings'
Deprecate all options and introduce `settings` for setting htop configuration
values in Nix configuration.
Use `lib.htop` to provide `fields` and `modes` for easy access to htop's integer
configuration. And `leftMeters` and `rightMeters` functions for building the
separate `*_meters` and `*_meter_modes` attributes.
* htop: add release-notes 21.05 entry
* htop: improve deprecation warnings
Move default configuration into `settings` and make deprecated options default
to `null`. Print deprecation warnings for any option that is non-null --
i.e. only show warnings for explicitly specified deprecated options.
* htop: make self code owner of module
* release notes: fix invalid programs.htop xref
Foot is a fast terminal emulator for Wayland. It can optionally be run
in a client-server configuration.
There are three unit tests to handle an empty configuration, the
default configuration, and systemd service file generation.
There is a need to manage XDG Base Directory system directory
environment variables in Home Manager modules. There is an existing
mechanism in `targets.genericLinux.extraXdgDataDirs', but this does not
apply to NixOS systems.
Furthermore, it is important that `XDG_CONFIG_DIRS' and `XDG_DATA_DIRS'
are set in both login shells (to support getty and SSH sessions) as well
as the systemd user manager (to propagate them to user services and
desktop environments).
The first need is addressed by adding the `xdg.systemDirs' module, which
configures lists of directory names for both `config' and `data'
directories. These are then set in
`$XDG_CONFIG_DIR/environment.d/10-home-manager.conf' and picked up by
the systemd user manager.
To make these, and other variables set in
`systemd.user.sessionVariables', available in login shells, an
additional step is added to `etc/profile.d/hm-session-vars.sh' which
exports the result of
`user-environment-generators/30-systemd-environment-d-generator' which
is shipped with systemd. The effect of this generator is to print
variables set on the systemd user manager such that shells can import
these into their environment.
`nix-index` is a tool to quickly locate the package providing a certain
file in `nixpkgs`. It indexes built derivations found in binary caches.
This module adds the shell integration for its `command-not-found`
script for interactive shells.
This change makes the services created via the lieer module aware of the notmuch config created by the home-mangager notmuch module (which is stored in a non-standard location).
Without this change all the lieer services created by the lieer module failed for me, as they were unable to find the notmuch config.
* i3, sway: extract border functionality to common function
Converted the i3 module to use default_border and
default_floating_border and extracted that functionality out to be
shared between the i3 and sway modules.
* i3: add sumnerevans as maintainer
* Git: Make signing key id be optional
Thus by default the signing key is selected by commit’s author.
* Git: Add tests for config with and without signing key id
* Git: Format tests for signing key
* Git: Remove default value (null) for signing key
* Git: Update description for signing key
* neomutt: support list in binds.map
Closes#1245
Adds support for specifying programs.neomutt.binds[].map as a list. If
specified as a list, then the binds will be concatenated with a ",".
* neomutt: add deprecation warning for (binds|macros).map as string
Added note that specifying 'programs.neomutt.(binds|macros).map' as a string is deprecated. Instead, use the list form.
* neomutt: note deprecation warning in release notes
Added note that specifying 'programs.neomutt.(binds|macros).map' as a
single string is deprecated in favor of specifying it as a list
* neomutt: add assertion that map is not empty
Added an assertion that each 'programs.neomutt.(binds|macros).map' list contains at least one element.
* neomutt: Fix eval error when primary account not enabled
If neomutt is enabled for an account, but not the primary account, the
configuration will fail with "list index 0 is out of bounds".
This adds the first neomutt-enabled account as a fallback.
* neomutt: add regression test/update tests
Set the systemd user service to use "mixed" killmode, which lets waybar
stop its module scripts. This fixes issues where waybar blocks shutdown
until systemd sends a SIGKILL to waybar child processes.
This allows you to set a theme for Qt applications. For example, if you
want to use `adwaita-qt` theme to have uniform look between Gtk and Qt
applications, you can use it like this:
```nix
{
qt = {
enable = true;
platformTheme = "gnome";
style = {
name = "adwaita";
package = pkgs.adwaita-qt;
};
};
}
```
The mailboxes must be a tuple of string or the string "ALL".
The generated value was broken if the mailboxes configuration was a list
of only one string (but not "ALL"): the generated expression ( "str" )
was not a tuple but a string.
Now, we always generate a tuple (by adding a comma, even with a list of
size one). Getmail works with the special value "ALL" whether it is a
in tuple or not, so this case is not specifically handled.
If a user using msmtp to send all their email, it would be preferred if
git used it as well.
The only settings necessary are to set the smtp server to the msmtp
binary and set envelop sender to true, which makes git call msmtp with
the -f flag to set the from address from the email.
Polybar's config format is a bit strange, and lists in particular are
annoying to handle. This enables using normal nix lists and nested
attrsets instead.
This change is not backwards-compatible, because the INI converter
converts lists of strings to space-separated values, and this does
something else. I expect that this is only relevant for the
`modules-left` etc bar setting, but that's enough to break things :(.
* zsh: update prezto path structure
The path structure was changed in Nixpkgs and this commit updates
the module to match.
Fixes#1773
* zsh-prezto: fix tests, small tidyup
Co-authored-by: Nick Hu <me@nickhu.co.uk>
Not every option is exposed by redshift/gammastep parameters, for
example gamma options are only exposed in configuration file. So this
PR refactors this module to generate a configuration file and pass it
to the redshift/gammastep using -c parameter.
This is a breaking change since there is no support for some of the
older options like `extraOptions`, but unless you use `extraOptions`
it should work without changes.
Not every option is exposed by redshift/gammastep parameters, for
example gamma options are only exposed in configuration file. So this
PR refactors this module to generate a configuration file and pass it
to the redshift/gammastep using -c parameter.
This is a breaking change since there is no support for some of the
older options like `extraOptions`, but unless you use `extraOptions`
it should work without changes.
If this commit now it is possible to define a custom theme directly
using Nix, like this:
```nix
{
programs.rofi.theme = {
"*" = {
background-color = "#000000";
border-color = "FFFFFF";
width = 512;
};
listview = {
cycle = true;
};
};
}
```
And this will be converted to the proper rasi format to be used in
rofi.
* rofi: migrate to rasi configuration format
The Xresources configuration format is deprecated in Rofi. For example,
using Rofi from unstable (1.6.1 as of now) you get the following
warnings when starting the application:
```
(process:9272): Rofi-WARNING **: 01:38:48.596: The old Xresources based configuration format is deprecated.
(process:9272): Rofi-WARNING **: 01:38:48.596: Please upgrade: rofi -upgrade-config.
``````
So this commit migrates it for its new configuration format, called rasi
instead.
This new implementation uses attrsets manipulation instead of using
strings, making the code clearer and also fixing some bugs found during
the way. To make sure everything is right, I also created some tests.
If someone wants to validate if the generated config is correct, just
run in terminal:
```
$ rofi -dump-config
```
And rofi will dump the current configuration file, including all
unsetted options.
* docs: document programs.rofi.extraConfig changes
* rofi: add thiagokokada as maintainer
* rofi: add toRasi function
Closes issue #1725.
This allows mpv module to be customized with support for more advanced
features than the `programs.mpv.scripts` current support. For example,
with this change now this is possible:
```nix
{
programs.mpv.package = (pkgs.wrapMpv (pkgs.mpv-unwrapped.override {
vapoursynthSupport = true;
}) {
extraMakeWrapperArgs = [
"--prefix" "LD_LIBRARY_PATH" ":" "${pkgs.vapoursynth-mvtools}/lib/vapoursynth"
];
});
}
```
Since `programs.mpv.package` doesn't necessary reflect the final
derivation anymore (see #1524), we introduce `programs.mpv.finalPackage`
that has the resulting derivation.
This includes 2 tests:
- One to check if everything is alright with mpv
- Other to validate our assertion that package and scripts can't be
passed both at the same time
* docs: document recent mpv module changes
* mpv: add thiagokokada as maintainer
When setting `...sway.package = null`, the default bar configuration
would throw an error trying to use the bar from the null package.
Logic is added to use the bar from `pkgs.sway` instead of `cfg.package`
if it is null.
Fixes#1714
This adds a "test.asserts" module that currently just provides a
convenient way to assert on the content of warnings. By default all
tests will assert that no warnings are given.
* neovim: write config in $XDG_CONFIG_HOME/init.vim
instead of wrapping the configuration, which has sideeffects
https://github.com/NixOS/nixpkgs/issues/55376
* fix: update test accordingly
Previously, it was not possible to set an arbitrary tmux prefix since
CTRL was hardcoded in the module.
To avoid breaking existing configs, a new option was implemented that
conveniently uses the tmux terminology but defaults to null and does
not affect previous behavior when set to null.
The behavior for the shortcut option was not completely replicated,
i.e., it does not bind "b" to send-prefix but stick to the default of
the prefix binding sending prefix (C-b C-b instead of C-b b) and it
does not bind repetition of the prefix (C-b C-b) to `last-window`,
both of these bring the option closer to the default tmux
configuration.
Fixes#1237
The current definition makes waybar wait for dbus.service, but that
never happens because dbus.service is started on demand by
dbus.socket.
Per systemd docs:
https://www.freedesktop.org/software/systemd/man/systemd.service.html#Implicit%20Dependencies
- Services with Type=dbus set automatically acquire dependencies of
type Requires= and After= on dbus.socket.
- Socket activated services are automatically ordered after their
activating .socket units via an automatic After= dependency.
Services also pull in all .socket units listed in Sockets= via
automatic Wants= and After= dependencies.
Removing Requisite/After makes the service properly start for me,
simply specifying Type=dbus is enough.
See #1370
Using the final package in the `onChange` block broke some use cases.
This restores the old behavior and instead solves the test
dependencies in a different way.
Fixes#1611
This reverts commit 7c3c64208e.
This causes list values to be emitted as a list of key-value pairs
instead of a single key-value pair where the value is space separated.
This is useful, e.g., for socket units that would like to specify more
than one `ListenStream=` address.
The `accounts.email.accounts.<name>.neomutt.extraConfig` option is
included twice in the resulting config file for the account. One time as
part of the `mraSection`, one time as part of `accountStr` (`accountStr`
includes the `mraSection`). This removes that duplication. I opted to
keep the one in `accounStr`, since `extraConfig` doesn't necessarily
have anything to do with the `mraSection`.
In feh you can bind multiple keys to the same action, but Home Manager
only let you set a single key to an action. You can cheat and pass a
string with space-separated keys, but with this change you can pass a
list for each action to bind multiple keys to it.
Also adds a couple of tests.
Fixes#1366
* neovim: allow setting init.vim config alongside plugins
* neovim: add test for neovim plugins
* neovim: make pluginWithConfigType a have type submodule
* mbsync: option for configuring a channel
A channel is a relationship between 2 directories/boxes/mailboxes
between the local machine (slave) and the remote mail server (master).
Each channel must be given at least:
* an account-unique name
* a pattern for which mailboxes to sync from master
* a pattern for what directory where that mail ends up on the
slave
Additional options can be added later.
* mbsync: option for configuring a group
A group is a grouping of channels together, so that many channels with
very different names can be handled as a single entity.
Groups are unique in mbsync because they will shadow channels that
have the same name on the command-line.
* mbsync: create groups configuration attribute
This is the end of the configuration that the end-user will use.
They will specify an attribute set that contains the name for the
group, so they can say
`accounts.email.accounts.<aname>.groups.<gname>` to access the
configuration for the group with the name `<gname>`.
* mbsync: write function to generate group-channel blocks
This function takes in a set of groups, and their consituent
channels and writes the appropriate .mbsyncrc block. The block is as
shown below:
Group groupName1
Channel channelName1
Channel channelName2
Group groupName2
Channel channelName3
Each group must have a unique name, no matter which account it is
declared under. The same holds true for channels. However, if there is
a group that shares the same name as the channel, the channel will
effectively be "shadowed" by the group, and mbsync will default to
working with the group in that case.
* mbsync: write function to generate channel configuration blocks
This function takes in a set of groups, which includes their
consituent channels and writes the appropriate .mbsyncrc block for the
channel. The block that is generated is shown below:
Channel groupName1-channelName1
Master :<accountName>-remote:<master-pattern>
Slave :<accountName>-local:<slave-pattern>
Channel groupName2-channelName2
Master :<accountName>-remote:<master-pattern>
Slave :<accountName>-local:<slave-pattern>
Each group must have a unique name, no matter which account it is
declared under. The same holds true for channels.
Using channels with the patterns set up this way allows one to specify
which maildir directories are to be synchronized FROM the master TO
the slave. In addition, it allows for these maildirs to be remapped,
between the master server and the local slave.
This is critical, because Gmail has a strange way of storing its mail
that makes using mbsync, mu, and mu4e more difficult.
There are additional channel parameters that are already present in
this codebase from the previous use of group-channel configuration,
which will be reused.
* mbsync: set the submodule's names field according to parameter
This is the same method as is used in creating an email account, named
`<name>` under `accounts.email.accounts.<name>`. This allows the user
to specify groups and channels, in a list-like format, but still gets
the "namespacing" to more easily handle the options available in each
of these locations.
* mbsync: provide examples of master/slave patterns for channels
* mbsync: create nested-let function to generate channel pattern
This pattern is required to either NOT be present, which means the
master pattern is used to match, or it has a list of patterns to use
beneath the master maildir to match against.
This function checks to ensure that if patterns is not empty, ONLY
then is the `Pattern` keyword printed. Otherwise, there are many, many
problems.
If there IS a list of patterns, then we use proper escaping methods to
ensure that the exact string is constructed.
* mbsync: per-account groups can have additional patterns
Gave the
`accounts.email.accounts.<name>.mbsync.groups.<gname>.channel.<cname>`
set a `patterns` option, which will allow for greater customization
and filtering of the master maildir to sync to the slave maildir.
* mbsync: add extraConfig option for easier-to-format options
These are options that can be handled by the `genSection` function in
the `genAccountFunction`, so they are left to the user to decide.
Most of these are made on a global basis anyways.
* mbsync: remove unneeded extraConfig.channel
This was originally placed here, seemingly, just to get this module
working. However, this field is actually more confusing now that a
separate per-channel configuration option for extra configurations has
been made available.
* mbsync: correct and improve comment in masterPattern description
* mbsync: switch channel/group generation to new functions
Changing this out is what moves us from the old system to the new one.
Instead of having a single channel manage a whole mailbox, we can now
specify an attribute set of groups that should correspond to an email
account.
Each of these groups contains an attribute set of channels that make
it up, and are grouped together for synchronization. In addition, each
of these channels can have additional IMAP4 parameters attached to
them to further refine synchronization.
Lastly, each of the channels is grouped together under the Group
section, ensuring that the channels' mailboxes synchronize as they
have been specified.
* mbsync: only generate group/channel configuration if channels present
Typically, when a group is specified, channels will be specified as
well. However, if due to error or mistake, the user forgets to specify
ANY channels for a group, we should not generate that group's
information.
This means that no channels are specified (which maps the remote
master to local slave). In addition, the `Group <gName>` block (which
brings the separate channels together) is also not generated.
Another thing to consider is that a user might specify a group and a
channel, but perform no additional configuration of the channel.
In a configuration, this would be realized by
`accounts.email.accounts.<aName>.mbsync.groups.<gName>.channels.<cName>;`
This creates the channel with the name `<cName>` and the
`masterPattern`, `slavePattern`, and `patterns` fields use their defaults.
By definitions set within mbsync, these defaults actually specify that
the remote master's `INBOX` mail directory is synchronized to the
local slave's `INBOX` directory.
So, if there is a channel that has no fields specified, then we DO
want to generate its configuration. But if there is a group that has
no channels, then we do NOT generate it.
* mbsync: acc comment explaining why groups attr set is never empty
* Revert "mbsync: remove unneeded extraConfig.channel"
This reverts commit 941c4771ca.
To support backwards compatibility, I need to leave this field/option
in the module, even if it will likely be more confusing to do it this way.
* mbsync: channel compatibility with previous iteration of mbsync
The previous version of mbsync used a single channel for an entire
account. This leads to issues when trying to change the mailbox
hierarchy on the local machine. The problem with this is that some
email providers (Gmail, among others) use a slightly different maildir
hierarchy, where the standard mailboxes (Inbox, Drafts, Trash, etc.)
are stored inside another directory (`[Gmail]/` in the case of Gmail).
This new version allows the user to specify any number of groups with
any number of channels within to reorder their mail however they wish.
However, to maintain backwards compatibility, I moved the original
channel-generating code to a function that will run ONLY when
there are no groups specified for THIS account.
* Revert "mbsync: channel compatibility with previous iteration of mbsync"
This reverts commit b1a241ff9f.
This function is in the wrong location and this was wrongly committed.
* mbsync: function for backwards compatibility with previous mbsync
NOTE THAT THIS IS THE CORRECT COMMIT FOR THIS CHUNK OF CODE!!
The previous version of mbsync used a single channel for an entire
account. This leads to issues when trying to change the mailbox
hierarchy on the local machine. The problem with this is that some
email providers (Gmail, among others) use a slightly different maildir
hierarchy, where the standard mailboxes (Inbox, Drafts, Trash, etc.)
are stored inside another directory (`[Gmail]/` in the case of Gmail).
This new version allows the user to specify any number of groups with
any number of channels within to reorder their mail however they wish.
However, to maintain backwards compatibility, I moved the original
channel-generating code to a function that will run ONLY when
there are no groups specified for THIS account.
* mbsync: function to choose which style of group/channels to generate
This is a simple if-check. If the old style is used, then this
account's mbsync.groups attribute set is empty. If that is the case,
then the old-style single-channel per account is used.
If that is NOT the case, then the new style is used in preference of
the old. This means that ALL channel code that would be generated by
the old version is replaced by the new one.
* mbsync: switch per-account config generation to check channels
* mbsync: program-wide groups if no account-specific groups
At the end, we have to choose whether or not to generate the old style
of having program-wide groups to specify things, where the boxes on
the channel underneath the group specifies which mailboxes to sync.
Here, we only generate the old style of group IF there is ANY account
that does NOT have the new `accounts.mbsync.groups` defined. At that
point, it is up to the user to ensure that the accounts in
`programs.mbsync.groups.{}` align with the name chosen for the
account, as I have made no attempt to change this old code.
However, if ALL accounts have their `mbsync.groups` defined, even if
each of the groups has a single empty channel, it will generate the
groups in the new style.
* mbsync: ensure \n after hm-generated comment
This was a multi-part fix. First, the `# Generated by Home Manager.`
comment has been reworked to ensure that it will ALWAYS have a
newline, even if the program-wide extraConfiguration is empty.
Next, we switched to placing 2 newlines between every account, to
provide further visual distinction between each account, which can
have multiple channels and multiple groups defined at the same time.
Lastly, the groupsConfig was slightly reworked, so that both the old
and new version can be used, but the new one will take precedence.
Because of this, groupsConfig is now a list of strings, which will
have single newlines inserted between each element.
But if the old style is NOT used, then the groupsConfig list
contains one element, an empty string. A single element has nothing
added as a separator, and an empty string produces no output.
* mbsync: only generate new group/channels if channels present
Here, the problem was if the user created a group for an account, but
did not also include a set of channels. If no channels have been
specified, then the group should NOT have its group-channel mapping generated.
I also corrected and improved the comment regarding
`genGroupChannelString`'s function and intended behavior.
* mbsync: channel patterns generate their own newlines
This means that when a channel has extra `patterns` defined for it, it
will generate those, and a single newline will be appended to the end
of that newly constructed string.
The moving of the newline character is slightly important because
otherwise, every account would receive an extra newline after every
channel, leading to 2 newlines after every channel.
* mbsync: place newline between each channel in a group
* mbsync: ensure old group/channel has proper spacing
This ensures that if the old style of generating program-wide groups
that there is the proper spacing before the group and in between each
line within the group.
* mbsync: ensure no empty channels present
If the user specifies a group correctly, they must still specify an
attribute set of channels. However, if they do not, then we need to
ensure that a group with no channels does NOT have any channel
configurations generated for it.
If there is a channel string generated for a channel that is empty,
then the `mapAttrsToList` returns a singleton list that contains just
the empty string. Thus, we can filter out all those results, to ensure
that no empty channels are generated.
It is important to keep in mind the difference between an empty
channel and a channel that has received no configuration, but is
named.
* A named channel is technically configured to have a name.
While the `masterPattern`, `slavePattern`, and `patterns`
field have NOT been populated, mbsync assumes that if
master/slave-Pattern are empty that means match against
`INBOX`.
If `patterns` is empty, no patterns are printed.
* An empty channel set is a set that has no channels within
it, but `mbsync.groups.<gName>.channels` is defined.
* mbsync: filter empty groups and correct newlines
First thing, someone can specify that a group is empty. If this is
done, technically a group with channels would be generated at the end.
However, because they were empty and did not exist, whitespacing would
be generated, leading to a usable, but mangled config file.
The `filter` solves this problem by removing empty strings (which are
generated by groups that are empty) from the output strings to place
in the file.
Lastly, because the whitespacing was fixed elsewhere in the file, the
crazy double-newline at the end was changed to a single newline.
However, the double newline within the `concatStringsSep` is still
required, because the list that is being concatenated together is a
list of channel configurations. Each element corresponds to one of the
groups specified, whose contents are the channels specified within.
The double newline is needed because each string element is lacking a
trailing newline, because `concatStringsSep` does not add the
separator to the end of the last element in the list. So, the last
channel to be configured will not have that newline appended when the
channel-configuration list is created, thus, 2 are inserted here.
* mbsync: update test input to use per-account channels
* mbsync: comment how old/new style collision handled
This is left in the test input for now, because I think it is useful
to see why certain things are happening the way they are.
* mbsync: update test output pattern
The test output should now have the correct configuration according to
the way I have specified it in the input file.
* mbsync: use format script on new code
* mbsync: add KarlJoad as maintainer
Co-authored-by: Nick Hu <me@nickhu.co.uk>
The apropos software is useful to get a list of manpages matching a
description or to get a list of all manpages. The latter feature is
used by Emacs to get manpage completion (`M-x man`).
To have apropos working, a database of all available manpages must be
built with mandb. This is what this commits does.
A similar change was done for NixOS:
edc6a76cc0
