Merge pull request #268 from Pacman99/dontexport

use __dontExport property for lib and overrides

doc/concepts/overrides.md

@@ -12,10 +12,15 @@ You can add overlays to any channel to override packages from other channels.
 Pulling the manix package from the `latest` channel:
 ```nix
 channels: final: prev: {
+  __dontExport = true;
   inherit (pkgs.latest) manix;
 }
 ```
 
+It is recommended to set the `__dontExport` property for override specific
+overlays. `overlays/overrides.nix` is the best place to consolidate all package
+overrides and the property is already set for you.
+
 ## Modules
 
 You can also pull modules from other channels. All modules have access to the 

flake.lock

@@ -79,7 +79,7 @@
         "utils": "utils_2"
       },
       "locked": {
-        "narHash": "sha256-hpvEXcpq85cDKi0F5UUsuMVISKlk8hgVJiz5FF29RwA=",
+        "narHash": "sha256-TQvd6TvSuT0sJCLlGsV65YjB+nIfDdDKZ1F94pCfkTw=",
         "path": "./lib",
         "type": "path"
       },
@@ -351,11 +351,11 @@
         "flake-utils": "flake-utils"
       },
       "locked": {
-        "lastModified": 1619532520,
-        "narHash": "sha256-+xIFAW5J0AcxwAflAX1gg/C8kfaqeZbS4XAZusCrZPY=",
+        "lastModified": 1619714004,
+        "narHash": "sha256-xoP81rWAM2cVpEFrQv9sUEIvNxGXAg4UH9kBt83a5u4=",
         "owner": "gytis-ivaskevicius",
         "repo": "flake-utils-plus",
-        "rev": "8eb7f9206713a528174c20c5133521dc37e2bfb1",
+        "rev": "0642ac572a87a0beb78a7c6ddce1267aa5817d05",
         "type": "github"
       },
       "original": {

lib/flake.lock

@@ -146,11 +146,11 @@
         "flake-utils": "flake-utils"
       },
       "locked": {
-        "lastModified": 1619532520,
-        "narHash": "sha256-+xIFAW5J0AcxwAflAX1gg/C8kfaqeZbS4XAZusCrZPY=",
+        "lastModified": 1619714004,
+        "narHash": "sha256-xoP81rWAM2cVpEFrQv9sUEIvNxGXAg4UH9kBt83a5u4=",
         "owner": "gytis-ivaskevicius",
         "repo": "flake-utils-plus",
-        "rev": "8eb7f9206713a528174c20c5133521dc37e2bfb1",
+        "rev": "0642ac572a87a0beb78a7c6ddce1267aa5817d05",
         "type": "github"
       },
       "original": {

lib/mkFlake/default.nix

@@ -40,7 +40,7 @@ let
   hosts = lib.mapAttrs (_: stripHost) cfg.nixos.hosts;
   hostDefaults = stripHost cfg.nixos.hostDefaults;
 in
-lib.systemFlake (lib.recursiveUpdate
+lib.systemFlake (lib.mergeAny
   otherArguments
   {
     inherit self inputs hosts;
@@ -55,6 +55,12 @@ lib.systemFlake (lib.recursiveUpdate
       )
       cfg.channels;
 
+    sharedOverlays = [
+      (final: prev: {
+        __dontExport = true;
+        devlib = lib;
+      })
+    ];
     hostDefaults = lib.mergeAny hostDefaults {
       specialArgs.suites = cfg.nixos.suites;
       modules = cfg.nixos.hostDefaults.externalModules ++ defaultModules;

overlays/overrides.nix

@@ -1,5 +1,7 @@
 channels: final: prev: {
 
+  __dontExport = true; # overrides clutter up actual creations
+
   inherit (channels.latest)
     cachix
     dhall