nix: Update nixpkgs to latest unstable version

default.nix

@@ -3,7 +3,7 @@ let
     "postgrest";
 
   compiler =
-    "ghc8104";
+    "ghc8107";
 
   # PostgREST source files, filtered based on the rules in the .gitignore files
   # and file extensions. We want to include as litte as possible, as the files

nix/nixpkgs-version.nix

@@ -1,6 +1,6 @@
 # Pinned version of Nixpkgs, generated with postgrest-nixpkgs-upgrade.
 {
-  date = "2021-07-17";
+  date = "2021-10-31";
-  rev = "d00b5a5fa6fe8bdf7005abb06c46ae0245aec8b5";
+  rev = "9303cc044586dd40599233454f1fd79176584c0f";
-  tarballHash = "08497wbpnf3w5dalcasqzymw3fmcn8qrnbkf8rxxwwvyjdnczxdv";
+  tarballHash = "0bgdk4zw9m42i3cva55a2bp2z16kd6xchz08vl0zg8d0mr3kk0q3";
 }

nix/overlays/postgresql-future.nix

@@ -2,16 +2,18 @@ self: super:
 # Overlay that adds future versions of PostgreSQL that are supported by
 # PostgREST.
 {
-  postgresql_14 =
+  ## Example for including a postgresql version from a specific nixpks commit:
-    let
+  ##
-      rev = "76b1e16c6659ccef7187ca69b287525fea133244";
+  #  postgresql_14 =
-      tarballHash = "1vsahpcx80k2bgslspb0sa6j4bmhdx77sw6la455drqcrqhdqj6a";
+  #    let
-
+  #      rev = "76b1e16c6659ccef7187ca69b287525fea133244";
-      pinnedPkgs =
+  #      tarballHash = "1vsahpcx80k2bgslspb0sa6j4bmhdx77sw6la455drqcrqhdqj6a";
-        builtins.fetchTarball {
+  #
-          url = "https://github.com/nixos/nixpkgs/archive/${rev}.tar.gz";
+  #      pinnedPkgs =
-          sha256 = tarballHash;
+  #        builtins.fetchTarball {
-        };
+  #          url = "https://github.com/nixos/nixpkgs/archive/${rev}.tar.gz";
-    in
+  #          sha256 = tarballHash;
-    (import pinnedPkgs { }).pkgs.postgresql_14;
+  #        };
+  #    in
+  #    (import pinnedPkgs { }).pkgs.postgresql_14;
 }

nix/static-haskell-package.nix

@@ -39,16 +39,29 @@ let
 
   overlays =
     [
+      allOverlays.postgresql-future
+      allOverlays.postgresql-default
       (allOverlays.haskell-packages { inherit compiler extraOverrides; })
+      # Disable failing tests for postgresql on musl that should have no impact
+      # on the libpq that we need (collate.icu.utf8 and foreign regression
+      # tests)
+      (self: super:
+        { postgresql = super.postgresql.overrideAttrs (_: { doCheck = false; }); }
+      )
     ];
 
   # Apply our overlay to the given pkgs.
   normalPkgs =
     import patchedNixpkgs { inherit overlays; };
 
+  defaultCabalPackageVersionComingWithGhc =
+    {
+      ghc8107 = "Cabal_3_2_1_0";
+    }."${compiler}";
+
   # The static-haskell-nix 'survey' derives a full static set of Haskell
   # packages, applying fixes where necessary.
   survey =
-    import "${patched-static-haskell-nix}/survey" { inherit normalPkgs compiler; };
+    import "${patched-static-haskell-nix}/survey" { inherit normalPkgs compiler defaultCabalPackageVersionComingWithGhc; };
 in
 survey.haskellPackages."${name}"