Previously, the NixOS test often failed as the copied config file is not overwriteable. In actual setups, the restart interval is much bigger, such that systemd-tmpfiles will correct the permissions inbetween.
135 lines
3.4 KiB
Nix
135 lines
3.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.rss2email;
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in {
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###### interface
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options = {
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services.rss2email = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc "Whether to enable rss2email.";
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};
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to = mkOption {
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type = types.str;
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description = lib.mdDoc "Mail address to which to send emails";
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};
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interval = mkOption {
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type = types.str;
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default = "12h";
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description = lib.mdDoc "How often to check the feeds, in systemd interval format";
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};
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config = mkOption {
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type = with types; attrsOf (oneOf [ str int bool ]);
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default = {};
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description = lib.mdDoc ''
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The configuration to give rss2email.
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Default will use system-wide `sendmail` to send the
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email. This is rss2email's default when running
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`r2e new`.
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This set contains key-value associations that will be set in the
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`[DEFAULT]` block along with the
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`to` parameter.
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See `man r2e` for more information on which
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parameters are accepted.
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'';
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};
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feeds = mkOption {
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description = lib.mdDoc "The feeds to watch.";
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type = types.attrsOf (types.submodule {
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options = {
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url = mkOption {
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type = types.str;
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description = lib.mdDoc "The URL at which to fetch the feed.";
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};
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to = mkOption {
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type = with types; nullOr str;
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default = null;
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description = lib.mdDoc ''
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Email address to which to send feed items.
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If `null`, this will not be set in the
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configuration file, and rss2email will make it default to
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`rss2email.to`.
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'';
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};
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};
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});
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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users.groups = {
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rss2email.gid = config.ids.gids.rss2email;
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};
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users.users = {
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rss2email = {
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description = "rss2email user";
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uid = config.ids.uids.rss2email;
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group = "rss2email";
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};
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};
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environment.systemPackages = with pkgs; [ rss2email ];
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services.rss2email.config.to = cfg.to;
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systemd.tmpfiles.rules = [
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"d /var/rss2email 0700 rss2email rss2email - -"
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];
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systemd.services.rss2email = let
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conf = pkgs.writeText "rss2email.cfg" (lib.generators.toINI {} ({
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DEFAULT = cfg.config;
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} // lib.mapAttrs' (name: feed: nameValuePair "feed.${name}" (
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{ inherit (feed) url; } //
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lib.optionalAttrs (feed.to != null) { inherit (feed) to; }
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)) cfg.feeds
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));
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in
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{
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preStart = ''
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if [ ! -f /var/rss2email/db.json ]; then
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echo '{"version":2,"feeds":[]}' > /var/rss2email/db.json
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fi
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'';
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path = [ pkgs.system-sendmail ];
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serviceConfig = {
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ExecStart =
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"${pkgs.rss2email}/bin/r2e -c ${conf} -d /var/rss2email/db.json run";
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User = "rss2email";
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};
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};
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systemd.timers.rss2email = {
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partOf = [ "rss2email.service" ];
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wantedBy = [ "timers.target" ];
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timerConfig.OnBootSec = "0";
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timerConfig.OnUnitActiveSec = cfg.interval;
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};
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};
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meta.maintainers = with lib.maintainers; [ ekleog ];
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}
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