nix-dotfiles/modules/autopull.nix
2024-08-03 14:21:17 +00:00

106 lines
2.6 KiB
Nix

{
config,
lib,
pkgs,
...
}:
let
cfg = config.services.autopull;
autopull-type =
with lib.types;
attrsOf (
submodule (
{ name, ... }:
{
options = {
enable = lib.mkEnableOption "autopull repo";
repo-name = lib.mkOption {
type = lib.types.str;
default = name;
description = "A name for the service which needs to be pulled";
};
path = lib.mkOption {
type = lib.types.path;
description = "Path that needs to be updated via git pull";
};
frequency = lib.mkOption {
type = lib.types.str;
description = "systemd-timer compatible time between pulls";
default = "1h";
};
ssh-key = lib.mkOption {
type = lib.types.str;
default = "";
description = "ssh-key used to pull the repository";
};
};
}
)
);
in
{
options = {
services.autopull = {
enable = lib.mkEnableOption "autopull";
repo = lib.mkOption { type = autopull-type; };
};
};
config =
let
repos = lib.filterAttrs (_: { enable, ... }: enable) cfg.repo;
in
lib.mkIf cfg.enable {
environment.systemPackages =
[ pkgs.git ]
++ lib.optionals (lib.any (ssh-key: ssh-key != "") (lib.rad-dev.mapGetAttr "ssh-key" repos)) [
pkgs.openssh
];
systemd.services = lib.mapAttrs' (
_:
{
repo-name,
ssh-key,
path,
...
}:
lib.nameValuePair "autopull@${repo-name}" {
requires = [ "multi-user.target" ];
after = [ "multi-user.target" ];
description = "Pull the latest data for ${repo-name}";
environment = lib.mkIf (ssh-key != "") {
GIT_SSH_COMMAND = "${pkgs.openssh}/bin/ssh -i ${ssh-key} -o IdentitiesOnly=yes";
};
serviceConfig = {
Type = "oneshot";
User = "root";
WorkingDirectory = path;
ExecStart = "${pkgs.git}/bin/git pull --all --prune";
};
}
) repos;
systemd.timers = lib.mapAttrs' (
_:
{ repo-name, frequency, ... }:
lib.nameValuePair "autopull@${repo-name}" {
wantedBy = [ "timers.target" ];
timerConfig = {
OnBootSec = frequency;
OnUnitActiveSec = frequency;
Unit = "autopull@${repo-name}.service";
};
}
) repos;
};
}