Add 'trivionomicon/' from commit '0ae8676d50'

git-subtree-dir: trivionomicon
git-subtree-mainline: 00d3799f90
git-subtree-split: 0ae8676d50

trivionomicon/doctrine/default.nix

@@ -0,0 +1,16 @@
+{
+  lib ? pkgs.lib,
+  pkgs,
+  prefix ? "trivium",
+  namespace ? null,
+}: let
+  doctrine =
+    {
+      lib = import ./lib {inherit lib pkgs doctrine;};
+      inherit namespace prefix;
+    }
+    // lib.optionalAttrs (pkgs != null) {
+      inherit pkgs;
+    };
+in
+  doctrine

trivionomicon/doctrine/lib/default.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  doctrine,
+  pkgs,
+}: let
+  close = vars: f: args:
+    (
+      if builtins.isPath f
+      then import f
+      else f
+    )
+    (args // vars);
+
+  closeLib = close {inherit lib;};
+  closeFull = close {inherit lib pkgs doctrine;};
+in
+  {
+    inherit close;
+    importAll = closeLib ./import-all.nix;
+  }
+  // lib.optionalAttrs (doctrine.namespace != null) {
+    mkModule = closeFull ./mk-module.nix;
+  }

trivionomicon/doctrine/lib/import-all.nix

@@ -0,0 +1,21 @@
+{
+  lib,
+  root,
+  exclude ? ["default"],
+}:
+with builtins;
+with lib;
+# http://chriswarbo.net/projects/nixos/useful_hacks.html
+  let
+    basename = removeSuffix ".nix";
+
+    isMatch = name: type:
+      (hasSuffix ".nix" name || type == "directory")
+      && ! elem (basename name) exclude;
+
+    entry = name: _: {
+      name = basename name;
+      value = import (root + "/${name}");
+    };
+  in
+    mapAttrs' entry (filterAttrs isMatch (readDir root))

trivionomicon/doctrine/lib/mk-module.nix

@@ -0,0 +1,51 @@
+{
+  # The first few arguments are implicitly passed by the 'close' helper
+  lib,
+  pkgs,
+  doctrine,
+  name,
+  config,
+  hm ? null,
+  sys ? null,
+  options ? null,
+  requires ? [],
+  prefix ? doctrine.prefix,
+  namespace ? doctrine.namespace,
+  passthru ? {},
+}: let
+  optionsSet = import options (passthru
+    // {
+      inherit config lib pkgs cfg name doctrine;
+    });
+
+  configSet = import configFiles.${namespace} (passthru
+    // {
+      inherit config lib pkgs doctrine cfg;
+    });
+
+  configFiles = lib.filterAttrs (k: v: v != null) {
+    inherit sys hm;
+  };
+
+  cfg = config.${prefix}.${name};
+in {
+  config =
+    lib.optionalAttrs (configFiles ? ${namespace})
+    (lib.mkIf cfg.enable (lib.mkMerge [
+      configSet
+      {
+        assertions =
+          map (dependency: {
+            assertion = cfg.enable -> config.${prefix}.${dependency}.enable;
+            message = "${prefix}.${name}.enable requires ${prefix}.${dependency}.enable";
+          })
+          requires;
+      }
+    ]));
+
+  options.${prefix}.${name} =
+    lib.optionalAttrs (options != null && optionsSet ? ${namespace}) optionsSet.${namespace}
+    // {
+      enable = lib.mkEnableOption name;
+    };
+}