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system: Add option to avoid cleaning /tmp on boot

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This increases boot times quite a bit so I'd rather use tmpfs as /tmp
where possible. Note that this defaults to cleaning /tmp anyway since
I'd rather clean /tmp than not do so at all.

For future reference, the message that gets shown is the following:
"A start job is running for Create Volatile Files and Directories"
This commit is contained in:
Donovan Glover 2024-04-05 10:59:48 -04:00
parent 59f557a3e5
commit 01acf8197d
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1 changed files with 7 additions and 3 deletions
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10
modules/system.nix
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@ -1,10 +1,10 @@
{ nix-config, pkgs, lib, config, ... }: { nix-config, pkgs, lib, config, ... }:
let let
inherit (lib) mkOption; inherit (lib) mkOption mkEnableOption mkIf;
inherit (lib.types) str listOf; inherit (lib.types) str listOf;
inherit (pkgs.nixVersions) nix_2_19; inherit (pkgs.nixVersions) nix_2_19;
inherit (cfg) username; inherit (cfg) username iHaveLotsOfRam;
inherit (builtins) attrValues; inherit (builtins) attrValues;
cfg = config.modules.system; cfg = config.modules.system;
@ -39,11 +39,15 @@ in
type = str; type = str;
default = "22.11"; default = "22.11";
}; };
iHaveLotsOfRam = mkEnableOption "tmpfs on /tmp";
}; };
config = { config = {
boot = { boot = {
tmp.cleanOnBoot = true; tmp = if iHaveLotsOfRam
then { useTmpfs = true; }
else { cleanOnBoot = true; };
loader = { loader = {
systemd-boot = { systemd-boot = {