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96cb733207
This reverts commitab6c8643d4. Issue https://github.com/NixOS/nix/issues/609 has been resolved, the new Nix version is available after86eaeb4c0a, and using nix-collect-garbage has the advantage that the '-d' flag is available, which nix-store doesn't have.
62 lines
1.2 KiB
Nix
62 lines
1.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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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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type = types.bool;
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description = "Automatically run the garbage collector at a specific time.";
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};
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dates = mkOption {
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default = "03:15";
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type = types.str;
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description = ''
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Specification (in the format described by
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<citerefentry><refentrytitle>systemd.time</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry>) of the time at
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which the garbage collector will run.
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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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type = types.str;
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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 = {
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systemd.services.nix-gc =
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{ description = "Nix Garbage Collector";
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script = "exec ${config.nix.package}/bin/nix-collect-garbage ${cfg.options}";
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startAt = optionalString cfg.automatic cfg.dates;
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};
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};
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}
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