stuff

common/default.nix

@@ -44,6 +44,8 @@ else
       ./units-config.nix
       ./lix.nix
       ./git.nix
+      ./repos-options.nix
+      ./repos-impl.nix
     ];
     options = {
       vacu.rootCAs = mkOption { type = types.listOf types.str; };

common/lib/default.nix

@@ -1,7 +1,30 @@
 { lib, config, ... }:
+let
+  inherit (builtins) isList;
+  mkOutOption =
+    val:
+    lib.mkOption {
+      readOnly = true;
+      default = val;
+    }
+  ;
+  listToIndexAttrs = list:
+    let
+      thing = lib.foldl (acc: val:
+        { 
+          index = acc.index + 1;
+          result = acc.result // { ${toString acc.index} = val; };
+        }
+      ) { result = {}; index = 0; } list;
+    in
+    assert isList list;
+    thing.result
+  ;
+in
 {
   imports = [
     ./makeWrapper.nix
+    ./duplicates.nix
   ];
 
   options.vacu.vaculib = lib.mkOption {
@@ -10,10 +33,8 @@
 
   config._module.args.vaculib = config.vacu.vaculib;
 
-  config.vacu.vaculib.mkOutOption =
-    val:
-    lib.mkOption {
-      readOnly = true;
-      default = val;
-    };
+  config.vacu.vaculib = {
+    inherit mkOutOption;
+    inherit listToIndexAttrs;
+  };
 }

common/lib/duplicates.nix

@@ -0,0 +1,85 @@
+{
+  lib,
+  config,
+  vaculib,
+  ...
+}:
+let
+  inherit (builtins) isString isList isFunction isAttrs;
+  pathFromStr = str:
+    assert isString str;
+    if str == "" then [] else
+    lib.splitString "." str
+  ;
+  /**
+    For each value, make a list of each attr name that has that value.
+
+    Values must be `toString`able, and are deduped based on the output of `toString`.
+
+    # Type
+    ```
+    findDuplicates :: { a :: b } -> { String :: [ a ] }
+    ```
+
+    # Examples
+    :::{.example}
+    ## `vaculib.findDuplicates` usage example
+
+    ```nix
+    findDuplicates { a = 1; b = 2; c = 3; x = 1; y = 2; }
+    => { "1" = [ "a" "x" ]; "2" = [ "b" "y" ]; }
+    ```
+
+    :::
+  */
+  findDuplicates = attrs:
+    let
+      occurances = lib.foldl (acc: name: value:
+        let
+          key = toString value;
+        in
+        acc // { ${key} = (acc.${key} or []) ++ [ name ]; }
+      ) {} attrs;
+    in
+    assert isAttrs attrs;
+    lib.filterAttrs (_: names: (builtins.length names) > 1) occurances
+  ;
+
+  # returns a list of attrSets suitable for vacu.assertions
+  assertNoDuplicatesModule = among: attr:
+    let
+      list_or_attrs = lib.getAttrFromPath (pathFromStr among) config;
+      attrs =
+        if isAttrs list_or_attrs
+        then list_or_attrs
+        else vaculib.listToIndexAttrs list_or_attrs
+      ;
+      innerPath = pathFromStr attr;
+      valueMap = (v: lib.getAttrFromPath innerPath v);
+      duplicates = findDuplicates (lib.mapAttrs (_: valueMap) attrs);
+      valueName = if attr == "" then "value" else "`${attr}`";
+      messages = lib.mapAttrsToList (duplicate: names:
+        let
+          pretty = name: "`${name}`";
+          prettyNames = map pretty names;
+        in
+        "Duplicate found in ${among}: ${lib.concatStringsSep ", " prettyNames} all have the same ${valueName}: ${duplicate}"
+      ) duplicates;
+    in
+    assert isString among;
+    assert isString attr;
+    assert (isList list_or_attrs) || (isAttrs list_or_attrs);
+    {
+      config.vacu.assertions = map (message: {
+        assertion = false;
+        inherit message;
+      }) messages;
+    }
+  ;
+in
+{
+  config.vacu.vaculib = {
+    inherit findDuplicates;
+    inherit assertNoDuplicatesModule;
+  };
+}

common/repos-impl.nix

@@ -0,0 +1,55 @@
+{
+  config,
+  lib,
+  vacuModuleType,
+  ...
+}:
+{
+  imports = [
+    (lib.optionalAttrs (vacuModuleType == "nixos") {
+      config.vacu.repos.path = lib.mkIf (config.users.users ? shelvacu) (lib.mkDefault "${config.users.users.shelvacu.home}/dev");
+    })
+    (lib.optionalAttrs (vacuModuleType == "nix-on-droid") {
+      config.vacu.repos.path = lib.mkDefault "${config.user.home}";
+    })
+  ];
+
+  vacu.repos = {
+    enable = lib.mkDefault true;
+    forges.uninsane.baseUrl = "git@git.uninsane.org:";
+    forges.github.baseUrl = "git@github.com";
+    forges.gitlab.basrUrl = "git@gitlab.com";
+    defaultOrigin = "uninsane";
+    repos.colin-nix-files = {
+      owner = "colin";
+      repoName = "nix-files";
+      origin = "uninsane";
+    };
+    # gh:Isaac0-dev/coopnet
+    repos.coopnet = {
+      owner = "Isaac0-dev";
+      origin = "github";
+    };
+    repos.metadl = {};
+    repos.nixos-apple-silicon = {
+      origin = "github";
+      owner = "tpwrules";
+    };
+    repos.nixpkgs = {
+      origin = "github";
+      owner = "nixos";
+      remotes = [
+        {
+          forge = "uninsane";
+          owner = "colin";
+        }
+      ];
+    };
+    repos.nix-stuff = {};
+    repos.numberlink-solver = {};
+    repos.sm64coopdx = {
+      origin = "github";
+      owner = "coop-deluxe";
+    };
+  };
+}

common/repos-options.nix

@@ -0,0 +1,132 @@
+{
+  lib,
+  config,
+  vaculib,
+  ...
+}:
+let
+  inherit (lib) mkOption types;
+  cfg = config.vacu.repos;
+  forgeModule = {
+    name,
+    config,
+    ...
+  }: {
+    options = {
+      name = mkOption {
+        type = types.str;
+        default = name;
+      };
+
+      remoteName = mkOption {
+        type = types.str;
+        default = config.name;
+      };
+
+      url = mkOption {
+        type = types.str;
+      };
+    };
+  };
+  remoteModule = {
+    name,
+    config,
+    ...
+  }: {
+    options = {
+      name = mkOption { type = types.str; default = name; };
+      baseUrl = mkOption { type = types.str; };
+      path = mkOption { type = types.str; };
+      url = mkOption { type = types.str; default = config.baseUrl + config.path; };
+    };
+  };
+  repoModule = let outercfg = cfg; in {
+    name,
+    config,
+    ...
+  }: 
+  let
+    remoteType = (
+      types.coercedTo
+        types.str
+        (from: { name = from; baseUrl = config.vacu.repos.forges.${from}.url; }) 
+        (types.subModuleWith {
+          modules = [
+            remoteModule
+            {
+              config.path = lib.mkDefault config.remotePath;
+            }
+          ];
+        })
+    );
+  in
+  {
+    options = {
+      name = mkOption {
+        type = types.str;
+        default = name;
+      };
+
+      localDir = mkOption {
+        type = types.strMatching "[^/]+";
+        default = config.name;
+      };
+
+      localPath = mkOption {
+        type = types.path;
+        default = "${outercfg.path}/${config.localDir}";
+      };
+
+      owner = mkOption {
+        type = types.str;
+        default = "shelvacu";
+      };
+
+      remoteName = mkOption {
+        type = types.str;
+        default = config.name;
+      };
+
+      remotePath = mkOption {
+        type = types.str;
+        default = "${config.owner}/${config.remoteName}";
+      };
+
+      origin = mkOption {
+        type = remoteType;
+      };
+
+      remotes = mkOption {
+        type = types.listOf remoteType;
+        default = [];
+      };
+    };
+  };
+in
+{
+  imports = [
+    # (vaculib.assertNoDuplicatesModule "vacu.repos" "name")
+    # (vaculib.assertNoDuplicatesModule "vacu.repos" "localPath")
+  ];
+
+  options.vacu.repos = {
+    enable = lib.mkEnableOption "manage repos";
+    path = mkOption {
+      type = types.path;
+    };
+    defaultOrigin = mkOption { type = types.str; };
+    forges = mkOption {
+      default = {};
+      type = types.attrsOf (types.submoduleWith {
+        modules = [ forgeModule ];
+      });
+    };
+    repos = mkOption {
+      type = types.attrsOf (types.submoduleWith { modules = [
+        repoModule
+        { config.origin = cfg.defaultOrigin; }
+      ]; });
+      default = {};
+    };
+  };
+}