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nix-gc: add randomizedDelaySec
option
There's no launchd equivalent to this option, so this is a no-op on Darwin.
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3 changed files with 15 additions and 0 deletions
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@ -81,6 +81,18 @@ in {
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'';
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};
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randomizedDelaySec = lib.mkOption {
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default = "0";
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type = lib.types.singleLineStr;
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example = "45min";
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description = ''
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Add a randomized delay before each garbage collection.
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The delay will be chosen between zero and this value.
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This value must be a time span in the format specified by
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{manpage}`systemd.time(7)`
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'';
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};
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options = mkOption {
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type = types.nullOr types.str;
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default = null;
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@ -121,6 +133,7 @@ in {
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Unit = { Description = "Nix Garbage Collector"; };
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Timer = {
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OnCalendar = "${cfg.frequency}";
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RandomizedDelaySec = cfg.randomizedDelaySec;
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Persistent = cfg.persistent;
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Unit = "nix-gc.service";
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};
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@ -4,6 +4,7 @@
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nix.gc = {
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automatic = true;
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frequency = "monthly";
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randomizedDelaySec = "42min";
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options = "--delete-older-than 30d --max-freed $((64 * 1024**3))";
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};
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@ -4,6 +4,7 @@ WantedBy=timers.target
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[Timer]
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OnCalendar=monthly
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Persistent=true
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RandomizedDelaySec=42min
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Unit=nix-gc.service
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[Unit]
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