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https://github.com/NiklasGollenstede/nixos-installer.git
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f56db19b5e
ZFS, encryption (keys, keystore, LUKS), bootFS, ephemeral root (tmpfs, ZFS, F2FS, ...), testing in qemu, options & debugging, ... and many small things
43 lines
1.6 KiB
Markdown
43 lines
1.6 KiB
Markdown
/*
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# FS Nixpkgs "Patches"
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Filesystem related "patches" of options in nixpkgs, i.e. additions of options that are *not* prefixed.
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## Implementation
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```nix
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#*/# end of MarkDown, beginning of NixOS module:
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dirname: inputs: specialArgs@{ config, pkgs, lib, ... }: let inherit (inputs.self) lib; in let
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utils = import "${inputs.nixpkgs.outPath}/nixos/lib/utils.nix" { inherit (specialArgs) lib config pkgs; };
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in {
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options = {
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fileSystems = lib.mkOption { type = lib.types.attrsOf (lib.types.submodule [ { options = {
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preMountCommands = lib.mkOption { description = ""; type = lib.types.nullOr lib.types.str; default = null; };
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}; } ]);
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}; };
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config = let
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in ({
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systemd.services = lib.wip.mapMerge (target: { device, preMountCommands, ... }: if (preMountCommands != null) then let
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isDevice = lib.wip.startsWith "/dev/" device;
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target' = utils.escapeSystemdPath target;
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device' = utils.escapeSystemdPath device;
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mountPoint = "${target'}.mount";
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in { "pre-mount-${target'}" = {
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description = "Prepare mounting (to) ${target}";
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wantedBy = [ mountPoint ]; before = [ mountPoint ] ++ (lib.optional isDevice "systemd-fsck@${device'}.service");
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requires = lib.optional isDevice "${device'}.device"; after = lib.optional isDevice "${device'}.device";
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unitConfig.RequiresMountsFor = [ (builtins.dirOf device) (builtins.dirOf target) ];
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unitConfig.DefaultDependencies = false;
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serviceConfig.Type = "oneshot"; script = preMountCommands;
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}; } else { }) config.fileSystems;
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});
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}
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