refactor(utils)!: promote to a flake module
Accessible through `config.lib`
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7 changed files with 164 additions and 148 deletions
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@ -144,6 +144,7 @@
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];
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imports = [
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./modules/flake/lib.nix
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./modules/flake/pkgs.nix
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./modules/flake/modules.nix
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./modules/flake/configurations.nix
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@ -1,7 +1,7 @@
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{ lib, config, self, inputs, withSystem, ... }:
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let
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inherit (import ../../nix/utils.nix { inherit lib config self; })
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inherit (config.lib)
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and
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hasFiles
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hasDirectories
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@ -1,7 +1,7 @@
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{ lib, config, self, inputs, ... }:
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let
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inherit (import ../../nix/utils.nix { inherit lib config self; })
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inherit (config.lib)
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accumulateHosts
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configuration-type-to-deploy-type;
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in
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159
modules/flake/lib.nix
Normal file
159
modules/flake/lib.nix
Normal file
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@ -0,0 +1,159 @@
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{ lib, config, self, ... }:
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{
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options = let
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inherit (lib) types;
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in {
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lib = lib.mkOption {
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type = types.unspecified;
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};
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};
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config.lib = rec {
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# Boolean helpers
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and = lib.all lib.id;
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or = lib.any lib.id;
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eq = x: y: x == y;
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# Directory walking helpers
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recurseDir = dir:
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lib.mapAttrs
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(file: type:
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if type == "directory"
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then recurseDir "${dir}/${file}"
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else type)
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(builtins.readDir dir);
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allSatisfy = predicate: attrs: attrset:
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lib.all
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(attr:
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and [
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(builtins.hasAttr attr attrset)
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(predicate (builtins.getAttr attr attrset))
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])
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attrs;
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# NOTE: Implying last argument is the output of `recurseDir`
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hasFiles = allSatisfy (eq "regular");
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# NOTE: Implying last argument is the output of `recurseDir`
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hasDirectories = allSatisfy lib.isAttrs;
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camelToKebab =
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lib.stringAsChars
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(c: if c == lib.toUpper c then "-${lib.toLower c}" else c);
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# NOTE: adapted from Tweag's Nix Hour 76 - <https://github.com/tweag/nix-hour/blob/c4fd0f2fc3059f057571bbfd74f3c5e4021f526c/code/76/default.nix#L4-L22>
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mutFirstChar =
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f: s:
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let
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firstChar = f (lib.substring 0 1 s);
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rest = lib.substring 1 (-1) s;
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in firstChar + rest;
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kebabToCamel = lib.flip lib.pipe [
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(lib.splitString "-")
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(lib.concatMapStrings
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(mutFirstChar lib.toUpper))
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(mutFirstChar lib.toLower)
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];
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# s:
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# mutFirstChar
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# lib.toLower
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# (lib.concatMapStrings
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# (mutFirstChar lib.toUpper)
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# (lib.splitString "-" s));
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gen-configuration-type-to = mappings: mkError: configuration-type:
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mappings.${configuration-type} or
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(builtins.throw
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(mkError configuration-type));
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# TODO: abstract away `_Hosts` and `_Modules`
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configuration-type-to-outputs-hosts =
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gen-configuration-type-to
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{
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nixos = "nixosHosts";
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nix-on-droid = "nixOnDroidHosts";
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nix-darwin = "darwinHosts";
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home-manager = "homeManagerHosts";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' hosts");
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configuration-type-to-outputs-modules =
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gen-configuration-type-to
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{
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nixos = "nixosModules";
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nix-on-droid = "nixOnDroidModules";
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nix-darwin = "darwinModules";
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home-manager = "homeManagerModules";
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flake = "flakeModules";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' modules");
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configuration-type-to-outputs-configurations =
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gen-configuration-type-to
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{
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nixos = "nixosConfigurations";
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nix-on-droid = "nixOnDroidConfigurations";
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nix-darwin = "darwinConfigurations";
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home-manager = "homeConfigurations";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' configurations");
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configuration-type-to-deploy-type =
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gen-configuration-type-to
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{
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nixos = "nixos";
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nix-darwin = "darwin";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for deploy-rs deployment");
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accumulateHosts = configuration-types: host-system-configuration-type-configuration-fn:
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lib.flip lib.concatMapAttrs
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(lib.genAttrs
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configuration-types
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(configuration-type:
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config.flake.autoConfigurations.${configuration-type}.resultHosts))
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(configuration-type: hosts:
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lib.pipe
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hosts
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[
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# Filter out nondirectories
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(lib.filterAttrs
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(system: configurations:
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builtins.isAttrs configurations))
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# Convert non-template configs into `system-and-config` pairs
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(lib.concatMapAttrs
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(system: configurations:
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(lib.concatMapAttrs
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(host: configuration:
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lib.optionalAttrs
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(host != "__template__")
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{
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${host} = {
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inherit system;
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configuration =
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let
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configurations = configuration-type-to-outputs-configurations configuration-type;
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in
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self.${configurations}.${host};
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};
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})
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configurations)))
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# Convert each `system-and-config` pair into a *whatever*
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(lib.concatMapAttrs
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(host: { system, configuration }:
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host-system-configuration-type-configuration-fn { inherit host system configuration-type configuration; }))
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]);
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};
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}
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@ -1,7 +1,7 @@
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{ lib, config, self, inputs, ... }:
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let
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inherit (import ../../nix/utils.nix { inherit lib config self; })
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inherit (config.lib)
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eq
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and
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hasFiles
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@ -1,7 +1,7 @@
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{ lib, config, self, inputs, ... }:
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let
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inherit (import ../../../nix/utils.nix { inherit lib config self; })
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inherit (config.lib)
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eq
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and
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hasFiles;
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144
nix/utils.nix
144
nix/utils.nix
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@ -1,144 +0,0 @@
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{ lib, config, self, ... }:
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rec {
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# Boolean helpers
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and = lib.all lib.id;
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or = lib.any lib.id;
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eq = x: y: x == y;
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# Directory walking helpers
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recurseDir = dir:
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lib.mapAttrs
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(file: type:
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if type == "directory"
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then recurseDir "${dir}/${file}"
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else type)
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(builtins.readDir dir);
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allSatisfy = predicate: attrs: attrset:
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lib.all
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(attr:
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and [
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(builtins.hasAttr attr attrset)
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(predicate (builtins.getAttr attr attrset))
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])
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attrs;
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# NOTE: Implying last argument is the output of `recurseDir`
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hasFiles = allSatisfy (eq "regular");
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# NOTE: Implying last argument is the output of `recurseDir`
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hasDirectories = allSatisfy lib.isAttrs;
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camelToKebab =
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lib.stringAsChars
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(c: if c == lib.toUpper c then "-${lib.toLower c}" else c);
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# NOTE: from Tweag's Nix Hour 76 - <https://github.com/tweag/nix-hour/blob/c4fd0f2fc3059f057571bbfd74f3c5e4021f526c/code/76/default.nix#L4-L22>
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mutFirstChar =
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f: s:
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let
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firstChar = f (lib.substring 0 1 s);
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rest = lib.substring 1 (-1) s;
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in firstChar + rest;
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kebabToCamel =
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s:
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mutFirstChar lib.toLower (
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lib.concatMapStrings (mutFirstChar lib.toUpper) (
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lib.splitString "-" s
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)
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);
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gen-configuration-type-to = mappings: mkError: configuration-type:
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mappings.${configuration-type} or
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(builtins.throw
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(mkError configuration-type));
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# TODO: abstract away `_Hosts` and `_Modules`
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configuration-type-to-outputs-hosts =
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gen-configuration-type-to
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{
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nixos = "nixosHosts";
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nix-on-droid = "nixOnDroidHosts";
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nix-darwin = "darwinHosts";
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home-manager = "homeManagerHosts";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' hosts");
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configuration-type-to-outputs-modules =
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gen-configuration-type-to
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{
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nixos = "nixosModules";
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nix-on-droid = "nixOnDroidModules";
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nix-darwin = "darwinModules";
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home-manager = "homeManagerModules";
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flake = "flakeModules";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' modules");
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configuration-type-to-outputs-configurations =
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gen-configuration-type-to
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{
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nixos = "nixosConfigurations";
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nix-on-droid = "nixOnDroidConfigurations";
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nix-darwin = "darwinConfigurations";
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home-manager = "homeConfigurations";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for flake outputs' configurations");
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configuration-type-to-deploy-type =
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gen-configuration-type-to
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{
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nixos = "nixos";
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nix-darwin = "darwin";
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}
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(configuration-type:
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builtins.throw
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"Invaild configuration-type \"${configuration-type}\" for deploy-rs deployment");
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accumulateHosts = configuration-types: host-system-configuration-type-configuration-fn:
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lib.flip lib.concatMapAttrs
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(lib.genAttrs
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configuration-types
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(configuration-type:
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config.flake.autoConfigurations.${configuration-type}.resultHosts))
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(configuration-type: hosts:
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lib.pipe
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hosts
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[
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# Filter out nondirectories
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(lib.filterAttrs
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(system: configurations:
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builtins.isAttrs configurations))
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# Convert non-template configs into `system-and-config` pairs
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(lib.concatMapAttrs
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(system: configurations:
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(lib.concatMapAttrs
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(host: configuration:
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lib.optionalAttrs
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(host != "__template__")
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{
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${host} = {
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inherit system;
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configuration =
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let
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configurations = configuration-type-to-outputs-configurations configuration-type;
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in
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self.${configurations}.${host};
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};
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})
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configurations)))
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# Convert each `system-and-config` pair into a *whatever*
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(lib.concatMapAttrs
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(host: { system, configuration }:
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host-system-configuration-type-configuration-fn { inherit host system configuration-type configuration; }))
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]);
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}
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