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nixpkgs/nixos/modules/programs/venus.nix
2017-03-21 08:28:53 +01:00

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.venus;
configFile = pkgs.writeText "venus.ini"
''
[Planet]
name = ${cfg.name}
link = ${cfg.link}
owner_name = ${cfg.ownerName}
owner_email = ${cfg.ownerEmail}
output_theme = ${cfg.cacheDirectory}/theme
output_dir = ${cfg.outputDirectory}
cache_directory = ${cfg.cacheDirectory}
items_per_page = ${toString cfg.itemsPerPage}
${(concatStringsSep "\n\n"
(map ({ name, feedUrl, homepageUrl }:
''
[${feedUrl}]
name = ${name}
link = ${homepageUrl}
'') cfg.feeds))}
'';
in
{
options = {
services.venus = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Planet Venus is an awesome river of news feed reader. It downloads
news feeds published by web sites and aggregates their content
together into a single combined feed, latest news first.
'';
};
dates = mkOption {
default = "*:0/15";
type = types.str;
description = ''
Specification (in the format described by
<citerefentry><refentrytitle>systemd.time</refentrytitle>
<manvolnum>7</manvolnum></citerefentry>) of the time at
which the Venus will collect feeds.
'';
};
user = mkOption {
default = "root";
type = types.str;
description = ''
User for running venus script.
'';
};
group = mkOption {
default = "root";
type = types.str;
description = ''
Group for running venus script.
'';
};
name = mkOption {
default = "NixOS Planet";
type = types.str;
description = ''
Your planet's name.
'';
};
link = mkOption {
default = "http://planet.nixos.org";
type = types.str;
description = ''
Link to the main page.
'';
};
ownerName = mkOption {
default = "Rok Garbas";
type = types.str;
description = ''
Your name.
'';
};
ownerEmail = mkOption {
default = "some@example.com";
type = types.str;
description = ''
Your e-mail address.
'';
};
outputTheme = mkOption {
default = "${pkgs.venus}/themes/classic_fancy";
type = types.path;
description = ''
Directory containing a config.ini file which is merged with this one.
This is typically used to specify templating and bill of material
information.
'';
};
outputDirectory = mkOption {
type = types.path;
description = ''
Directory to place output files.
'';
};
cacheDirectory = mkOption {
default = "/var/cache/venus";
type = types.path;
description = ''
Where cached feeds are stored.
'';
};
itemsPerPage = mkOption {
default = 15;
type = types.int;
description = ''
How many items to put on each page.
'';
};
feeds = mkOption {
default = [];
example = [
{
name = "Rok Garbas";
feedUrl= "http://url/to/rss/feed.xml";
homepageUrl = "http://garbas.si";
}
];
description = ''
List of feeds.
'';
};
};
};
config = mkIf cfg.enable {
system.activationScripts.venus =
''
mkdir -p ${cfg.outputDirectory}
chown ${cfg.user}:${cfg.group} ${cfg.outputDirectory} -R
rm -rf ${cfg.cacheDirectory}/theme
mkdir -p ${cfg.cacheDirectory}/theme
cp -R ${cfg.outputTheme}/* ${cfg.cacheDirectory}/theme
chown ${cfg.user}:${cfg.group} ${cfg.cacheDirectory} -R
'';
systemd.services.venus =
{ description = "Planet Venus Feed Reader";
path = [ pkgs.venus ];
script = "exec venus-planet ${configFile}";
serviceConfig.User = "${cfg.user}";
serviceConfig.Group = "${cfg.group}";
startAt = cfg.dates;
};
};
}