chore(3p/sources): Bump channels & overlays

Use nixos-unstable-small which fixes CVE-2018-25032
(out of bounds write while compressing).

* //users/grfn/xanthous:

  - Supporting random-fu 0.3 requires considerable changes and patching
    random-extras (https://github.com/aristidb/random-extras/pull/5).

    For now we downgrade random-fu and its dependency rvar to 0.2.*,
    forcing us to build xanthous with GHC 8.10.7, due to random-fu 0.2.*
    not supporting that version.

    Nix expressions for the downgraded packages are checked in to avoid
    the potential need to compile Haskell at pipeline eval time.

  - generic-arbitrary exposes a GenericArbitrary newtype now.
    This means we no longer have to implement it in xanthous
    downstream and patch generic-arbitrary to expose the
    GArbitrary type class.

  - Minor adjustments for lens 5.0:

    Xanthous.Game.Memo: clear needs to use ASetter' instead of Lens'

    Xanthous.Data.EntityMap: TraversableWithIndex no longer has an
    itraversed function.

  - Xanthous.Orphans: adjust for aeson's KeyMap, use KM.size explicitly
    instead of relying on MonoTraversable's length

* //nix/buildLisp: the CCL issue has resurfaced, disabling the
  implementation once again.

* //3p/arion: remove, as depot uses the nixpkgs package of it anyways.

* //users/wpcarro: accomodate GHC 9.0.1's stricter parsing of operators.

* //users/tazjin: disable rustfmt as it stopped respecting settings

* //3p/overlays: upgrade home-manager until fix for serivce generation
  has landed upstream

* //users/grfn/system: remove rr override, as the pinned commit is part
  of the 5.5.0 release shipped by nixpkgs.

Change-Id: If229e7317ba48498f85170b57ee9053f6997ff8a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5428
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: wpcarro <wpcarro@gmail.com>

third_party/overlays/haskell/.skip-subtree

@@ -0,0 +1 @@
+extra-pkgs need to be callPackage-ed

third_party/overlays/haskell/default.nix

@@ -7,13 +7,26 @@
 self: super: # overlay parameters for the nixpkgs overlay
 
 let
-  overrides = hsSelf: hsSuper: with super.haskell.lib; {
-    generic-arbitrary = appendPatch hsSuper.generic-arbitrary
-      [ ./patches/generic-arbitrary-export-garbitrary.patch ];
+  overrides = hsSelf: hsSuper: with self.haskell.lib.compose; {
+    # No overrides for the default package set necessary at the moment
   };
 in
 {
   haskellPackages = super.haskellPackages.override {
     inherit overrides;
   };
+
+  haskell = lib.recursiveUpdate super.haskell {
+    packages.ghc8107 = super.haskell.packages.ghc8107.override {
+      overrides = hsSelf: hsSuper: with self.haskell.lib.compose; {
+        # TODO(sterni): TODO(grfn): patch xanthous to work with random-fu 0.3.*,
+        # so we can use GHC 9.0.2 and benefit from upstream binary cache.
+        random-fu = hsSelf.callPackage ./extra-pkgs/random-fu-0.2.nix { };
+        rvar = hsSelf.callPackage ./extra-pkgs/rvar-0.2.nix { };
+
+        # TODO(sterni): upstream this
+        universe-base = addBuildDepend hsSelf.OneTuple hsSuper.universe-base;
+      };
+    };
+  };
 }

third_party/overlays/haskell/extra-pkgs/random-fu-0.2.nix

@@ -0,0 +1,41 @@
+{ mkDerivation
+, base
+, erf
+, lib
+, math-functions
+, monad-loops
+, mtl
+, random
+, random-shuffle
+, random-source
+, rvar
+, syb
+, template-haskell
+, transformers
+, vector
+}:
+mkDerivation {
+  pname = "random-fu";
+  version = "0.2.7.7";
+  sha256 = "8466bcfb5290bdc30a571c91e1eb526c419ea9773bc118996778b516cfc665ca";
+  revision = "1";
+  editedCabalFile = "16nhymfriygqr2by9v72vdzv93v6vhd9z07pgaji4zvv66jikv82";
+  libraryHaskellDepends = [
+    base
+    erf
+    math-functions
+    monad-loops
+    mtl
+    random
+    random-shuffle
+    random-source
+    rvar
+    syb
+    template-haskell
+    transformers
+    vector
+  ];
+  homepage = "https://github.com/mokus0/random-fu";
+  description = "Random number generation";
+  license = lib.licenses.publicDomain;
+}

third_party/overlays/haskell/extra-pkgs/rvar-0.2.nix

@@ -0,0 +1,25 @@
+{ mkDerivation
+, base
+, lib
+, MonadPrompt
+, mtl
+, random-source
+, transformers
+}:
+mkDerivation {
+  pname = "rvar";
+  version = "0.2.0.6";
+  sha256 = "01e18875ffde43f9591a8acd9f60c9c51704a026e51c1a6797faecd1c7ae8cd3";
+  revision = "1";
+  editedCabalFile = "1jn9ivlj3k65n8d9sfsp882m5lvni1ah79mk0cvkz91pgywvkiyq";
+  libraryHaskellDepends = [
+    base
+    MonadPrompt
+    mtl
+    random-source
+    transformers
+  ];
+  homepage = "https://github.com/mokus0/random-fu";
+  description = "Random Variables";
+  license = lib.licenses.publicDomain;
+}

third_party/overlays/haskell/patches/generic-arbitrary-export-garbitrary.patch

@@ -1,12 +0,0 @@
-diff --git a/src/Test/QuickCheck/Arbitrary/Generic.hs b/src/Test/QuickCheck/Arbitrary/Generic.hs
-index fed6ab3..91f59f1 100644
---- a/src/Test/QuickCheck/Arbitrary/Generic.hs
-+++ b/src/Test/QuickCheck/Arbitrary/Generic.hs
-@@ -23,6 +23,7 @@ The generated 'arbitrary' method is equivalent to
- 
- module Test.QuickCheck.Arbitrary.Generic
-   ( Arbitrary(..)
-+  , GArbitrary
-   , genericArbitrary
-   , genericShrink
-   ) where

third_party/overlays/tvl.nix

@@ -75,21 +75,15 @@ self: super: {
     });
   });
 
-  # Temporary workaround until the following commit is in channels:
-  # https://github.com/nixos/nixpkgs/commit/5819b99350d7ac6e20f91adce38e7bb22e4d6fc4
-  ocamlPackages = super.ocamlPackages.overrideScope' (oself: osuper: {
-    uutf =
-      let
-        expectedUrls = [
-          "https://erratique.ch/software/uutf/releases/uutf-${osuper.uutf.version}.tbz"
-        ];
-      in
-      assert osuper.uutf.src.urls != expectedUrls;
-      osuper.uutf.overrideAttrs (old: {
-        src = self.fetchurl {
-          urls = expectedUrls;
-          sha256 = old.src.outputHash;
-        };
-      });
+  # upgrade home-manager until the service-generation fix has landed upstream
+  # https://github.com/nix-community/home-manager/issues/2846
+  home-manager = super.home-manager.overrideAttrs (old: rec {
+    version = assert super.home-manager.version == "2021-12-25"; "2022-04-08";
+    src = self.fetchFromGitHub {
+      owner = "nix-community";
+      repo = "home-manager";
+      rev = "f911ebbec927e8e9b582f2e32e2b35f730074cfc";
+      sha256 = "07qa2qkbjczj3d0m03jpw85hfj35cbjm48xhifz3viy4khjw88vl";
+    };
   });
 }