f4a6f9e84b
These options avoid manual references to pkgs.nixUnstable which might be changed with environment.nix option. svn path=/nixos/trunk/; revision=18798
54 lines
1 KiB
Nix
54 lines
1 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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nix = config.environment.nix;
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cfg = config.nix.gc;
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in
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{
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###### interface
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options = {
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nix.gc = {
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automatic = mkOption {
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default = false;
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example = true;
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description = "
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Automatically run the garbage collector at specified dates.
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";
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};
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dates = mkOption {
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default = "15 03 * * *";
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description = "
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Run the garbage collector at specified dates to avoid full
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hard-drives.
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";
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};
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options = mkOption {
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default = "";
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example = "--max-freed $((64 * 1024**3))";
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description = "
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Options given to <filename>nix-collect-garbage</filename> when the
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garbage collector is run automatically.
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";
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};
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};
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};
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###### implementation
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config = mkIf cfg.automatic {
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services.cron.systemCronJobs = [
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"${cfg.dates} root ${nix}/bin/nix-collect-garbage ${cfg.options} > /var/log/gc.log 2>&1"
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];
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};
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}
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