nixpkgs/modules/programs/venus.nix

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2013-07-23 22:41:52 +02:00
{config, pkgs, ...}:
with pkgs.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))}
'';
cronJob = ''
${cfg.cronInterval} ${cfg.cronUser} ${pkgs.venus}/bin/venus-planet ${configFile}
'';
in
{
options = {
services.venus = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Enable the venus cron job.
'';
};
cronInterval = mkOption {
default = "*/10 * * * *";
type = types.string;
description = ''
Interval in cron format. Default is every 10 minutes.
'';
};
cronUser = mkOption {
default = "root";
type = types.string;
description = ''
User for running the cron job.
'';
};
name = mkOption {
default = "NixOS Planet";
type = types.string;
description = ''
Your planet's name.
'';
};
link = mkOption {
default = "http://planet.nixos.org";
type = types.string;
description = ''
Link to the main page.
'';
};
ownerName = mkOption {
default = "Rok Garbas";
type = types.string;
description = ''
Your name.
'';
};
ownerEmail = mkOption {
default = "some@example.com";
type = types.string;
description = ''
Your e-mail address.
'';
};
outputTheme = mkOption {
default = "${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.cronUser} ${cfg.outputDirectory} -R
rm -rf ${cfg.cacheDirectory}/themes
mkdir -p ${cfg.cacheDirectory}/themes
cp -R ${cfg.outputTheme}/* ${cfg.cacheDirectory}/theme
chown ${cfg.cronUser} ${cfg.cacheDirectory} -R
'';
services.cron.systemCronJobs = [ cronJob ];
};
}