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types: refactor topLevel into devices, move output generators to lib
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parent
271b00593f
commit
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14
default.nix
14
default.nix
@ -4,18 +4,18 @@ let
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eval = cfg: lib.evalModules {
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modules = lib.singleton {
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# _file = toString input;
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imports = lib.singleton { topLevel.devices = cfg; };
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imports = lib.singleton { devices = cfg; };
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options = {
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topLevel = lib.mkOption {
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type = types.topLevel;
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devices = lib.mkOption {
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type = types.devices;
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};
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};
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};
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};
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in {
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types = types;
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create = cfg: (eval cfg).config.topLevel.create;
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mount = cfg: (eval cfg).config.topLevel.mount;
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config = cfg: (eval cfg).config.topLevel.config;
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packages = cfg: (eval cfg).config.topLevel.packages;
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create = cfg: types.diskoLib.create (eval cfg).config.devices;
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mount = cfg: types.diskoLib.mount (eval cfg).config.devices;
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config = cfg: types.diskoLib.config (eval cfg).config.devices;
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packages = cfg: types.diskoLib.packages (eval cfg).config.devices;
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}
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135
types.nix
135
types.nix
@ -119,6 +119,51 @@ rec {
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=> "hello world"
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*/
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maybeStr = x: optionalString (!isNull x) x;
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/* Takes a disko device specification, returns an attrset with metadata
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meta :: types.devices -> AttrSet
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*/
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meta = devices: diskoLib.deepMergeMap (dev: dev._meta) (flatten (map attrValues (attrValues devices)));
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/* Takes a disko device specification and returns a string which formats the disks
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create :: types.devices -> str
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*/
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create = devices: let
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sortedDeviceList = diskoLib.sortDevicesByDependencies (diskoLib.meta devices).deviceDependencies devices;
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in ''
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set -efux
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${concatStrings (map (dev: attrByPath (dev ++ [ "_create" ]) "" devices) sortedDeviceList)}
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'';
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/* Takes a disko device specification and returns a string which mounts the disks
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mount :: types.devices -> str
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*/
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mount = devices: let
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fsMounts = diskoLib.deepMergeMap (dev: dev._mount.fs or {}) (flatten (map attrValues (attrValues devices)));
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sortedDeviceList = diskoLib.sortDevicesByDependencies (diskoLib.meta devices).deviceDependencies devices;
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in ''
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set -efux
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# first create the neccessary devices
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${concatStrings (map (dev: attrByPath (dev ++ [ "_mount" "dev" ]) "" devices) sortedDeviceList)}
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# and then mount the filesystems in alphabetical order
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# attrValues returns values sorted by name. This is important, because it
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# ensures that "/" is processed before "/foo" etc.
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${concatStrings (attrValues fsMounts)}
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'';
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/* Takes a disko device specification and returns a nixos configuration
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config :: types.devices -> nixosConfig
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*/
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config = devices: {
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imports = flatten (map (dev: dev._config) (flatten (map attrValues (attrValues devices))));
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};
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/* Takes a disko device specification and returns a function to get the needed packages to format/mount the disks
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packages :: types.devices -> pkgs -> [ derivation ]
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*/
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packages = devices: pkgs: unique (flatten (map (dev: dev._pkgs pkgs) (flatten (map attrValues (attrValues devices)))));
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};
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optionTypes = rec {
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@ -152,89 +197,27 @@ rec {
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};
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/* topLevel type of the disko config, takes attrsets of disks mdadms zpools and lvm vgs.
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exports create, mount, meta and config
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*/
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topLevel = types.submodule ({ config, ... }: {
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devices = types.submodule {
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options = {
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devices = {
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disk = mkOption {
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type = types.attrsOf disk;
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default = {};
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};
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mdadm = mkOption {
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type = types.attrsOf mdadm;
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default = {};
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};
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zpool = mkOption {
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type = types.attrsOf zpool;
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default = {};
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};
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lvm_vg = mkOption {
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type = types.attrsOf lvm_vg;
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default = {};
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};
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disk = mkOption {
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type = types.attrsOf disk;
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default = {};
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};
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meta = mkOption {
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readOnly = true;
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default = diskoLib.deepMergeMap (dev: dev._meta) (flatten (map attrValues [
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config.devices.disk
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config.devices.lvm_vg
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config.devices.mdadm
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config.devices.zpool
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])) // {
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sortedDeviceList = diskoLib.sortDevicesByDependencies config.meta.deviceDependencies config.devices;
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};
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mdadm = mkOption {
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type = types.attrsOf mdadm;
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default = {};
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};
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create = mkOption {
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readOnly = true;
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type = types.str;
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default = ''
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set -efux
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${concatStrings (map (dev: attrByPath (dev ++ [ "_create" ]) "" config.devices) config.meta.sortedDeviceList)}
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'';
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zpool = mkOption {
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type = types.attrsOf zpool;
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default = {};
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};
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mount = mkOption {
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readOnly = true;
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type = types.str;
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default = let
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fsMounts = diskoLib.deepMergeMap (dev: dev._mount.fs or {}) (flatten (map attrValues [
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config.devices.disk
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config.devices.lvm_vg
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config.devices.mdadm
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config.devices.zpool
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]));
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in ''
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set -efux
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# first create the neccessary devices
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${concatStrings (map (dev: attrByPath (dev ++ [ "_mount" "dev" ]) "" config.devices) config.meta.sortedDeviceList)}
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# and then mount the filesystems in alphabetical order
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# attrValues returns values sorted by name. This is important, because it
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# ensures that "/" is processed before "/foo" etc.
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${concatStrings (attrValues fsMounts)}
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'';
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};
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config = mkOption {
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readOnly = true;
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default = { imports = flatten (map (dev: dev._config) (flatten (map attrValues [
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config.devices.disk
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config.devices.lvm_vg
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config.devices.mdadm
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config.devices.zpool
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])));};
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};
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packages = mkOption {
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readOnly = true;
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# type = types.functionTo (types.listOf types.package);
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default = pkgs: unique (flatten (map (dev: dev._pkgs pkgs) (flatten (map attrValues [
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config.devices.disk
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config.devices.lvm_vg
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config.devices.mdadm
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config.devices.zpool
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]))));
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lvm_vg = mkOption {
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type = types.attrsOf lvm_vg;
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default = {};
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};
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};
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});
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};
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btrfs = types.submodule ({ config, ... }: {
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options = {
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