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home-manager/modules/services/fnott.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.fnott;
concatStringsSep' = sep: list:
concatStringsSep sep (filter (x: x != "") list);
mkKeyValue = generators.mkKeyValueDefault { } "=";
genINI = generators.toINI { };
iniFormatType = with types;
let
iniAtom = types.nullOr (types.oneOf [ bool int float str ]) // {
description = "INI atom (null, bool, int, float or string)";
};
in attrsOf (attrsOf iniAtom);
in {
options = {
services.fnott = {
enable = mkEnableOption ''
fnott, a lightweight Wayland notification daemon for wlroots-based compositors
'';
package = mkOption {
type = types.package;
default = pkgs.fnott;
defaultText = literalExample "pkgs.fnott";
description = "Package providing <command>fnott</command>.";
};
extraFlags = mkOption {
type = types.listOf types.str;
default = [ ];
example = [ "-s" ];
description = ''
Extra arguments to use for executing fnott.
'';
};
configFile = mkOption {
type = types.either types.str types.path;
default = "${config.xdg.configHome}/fnott/fnott.ini";
defaultText = "$XDG_CONFIG_HOME/fnott/fnott.ini";
description = ''
Path to the configuration file read by fnott.
</para><para>
Note that environment variables in the path won't be properly expanded.
</para><para>
The configuration specified under
<option>services.fnott.settings</option> will be generated and
written to <filename>$XDG_CONFIG_HOME/fnott/fnott.ini</filename>
regardless of this option. This allows using a mutable configuration file
generated from the immutable one, useful in scenarios where live reloading is desired.
'';
};
settings = mkOption {
type = iniFormatType;
default = { };
description = ''
Configuration written to
<filename>$XDG_CONFIG_HOME/fnott/fnott.ini</filename>.
</para><para>
See
<citerefentry>
<refentrytitle>fnott.ini</refentrytitle>
<manvolnum>5</manvolnum>
</citerefentry> for a list of avaliable options and <link
xlink:href="https://codeberg.org/dnkl/fnott/src/branch/master/fnott.ini"/>
for an example configuration.
'';
example = literalExample ''
{
main = {
notification-margin = 5;
};
low = {
timeout = 5;
title-font = "Dina:weight=bold:slant=italic";
title-color = "ffffff";
};
}
'';
};
};
};
config = mkIf cfg.enable {
assertions =
[ (hm.assertions.assertPlatform "services.fnott" pkgs platforms.linux) ];
home.packages = [ cfg.package ];
systemd.user.services.fnott = {
Unit = {
Description = "Fnott notification daemon";
Documentation = "man:fnott(1)";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
};
Service = {
Type = "dbus";
BusName = "org.freedesktop.Notifications";
ExecStart = concatStringsSep' " " [
"${cfg.package}/bin/fnott"
"-c ${escapeShellArg cfg.configFile}"
(escapeShellArgs cfg.extraFlags)
];
};
};
xdg.configFile."fnott/fnott.ini" = {
# FIXME: Remove after next version release (https://codeberg.org/dnkl/fnott/pulls/24).
text = concatStringsSep' "\n" [
(optionalString (cfg.settings ? main) ''
${concatStringsSep "\n" (mapAttrsToList mkKeyValue cfg.settings.main)}
'')
(genINI (removeAttrs cfg.settings [ "main" ]))
];
};
};
}