feat: bringing postgres package into our package set

flake.nix

@@ -46,22 +46,37 @@
         #This variable works the same as 'oriole_pkgs' but builds using the upstream
         #nixpkgs builds of postgresql 15 and 16 + the overlays listed below
         pkgs = import nixpkgs {
-          config = { allowUnfree = true; };
+          config = { 
+            allowUnfree = true;
+            permittedInsecurePackages = [
+              "v8-9.7.106.18"
+            ];  
+          };
           inherit system;
           overlays = [
             # NOTE (aseipp): add any needed overlays here. in theory we could
             # pull them from the overlays/ directory automatically, but we don't
             # want to have an arbitrary order, since it might matter. being
             # explicit is better.
+            (final: prev: {
+              postgresql = final.callPackage ./nix/postgresql/default.nix {
+                inherit (final) lib;
+                inherit (final) stdenv;
+                inherit (final) fetchurl;
+                inherit (final) makeWrapper;
+                inherit (final) callPackage;
+              };
+            })
             (import ./nix/overlays/cargo-pgrx-0-11-3.nix)
             # (import ./nix/overlays/postgis.nix)
             #(import ./nix/overlays/gdal-small.nix)
 
           ];
         };
-
+        postgresql_15 = pkgs.postgresql.postgresql_15;
+        postgresql = pkgs.postgresql.postgresql_15;
         sfcgal = pkgs.callPackage ./nix/ext/sfcgal/sfcgal.nix { };
-        pg_regress = pkgs.callPackage ./nix/ext/pg_regress.nix { };
+        pg_regress = pkgs.callPackage ./nix/ext/pg_regress.nix { inherit postgresql; };
 
         # Our list of PostgreSQL extensions which come from upstream Nixpkgs.
         # These are maintained upstream and can easily be used here just by
@@ -128,7 +143,10 @@
         #this var is a convenience setting to import the orioledb patched version of postgresql
         postgresql_orioledb_16 = oriole_pkgs.postgresql_orioledb_16;
         #postgis_override = pkgs.postgis_override;
-
+        getPostgresqlPackage = version:
+          pkgs.postgresql."postgresql_${version}";
+        #we will add supported versions to this list in the future
+        supportedVersions = [ "15" ];
         # Create a 'receipt' file for a given postgresql package. This is a way
         # of adding a bit of metadata to the package, which can be used by other
         # tools to inspect what the contents of the install are: the PSQL
@@ -170,7 +188,7 @@
           in map (path: pkgs.callPackage path { inherit postgresql; }) orioledbExtension;
 
         makeOurPostgresPkgs = version:
-          let postgresql = pkgs."postgresql_${version}";
+          let postgresql = getPostgresqlPackage version;
           in map (path: pkgs.callPackage path { inherit postgresql; }) ourExtensions;
 
         # Create an attrset that contains all the extensions included in a server for the orioledb version of postgresql + extension.
@@ -202,7 +220,7 @@
         # basis for building extensions, etc.
         makePostgresBin = version:
           let
-            postgresql = pkgs."postgresql_${version}";
+            postgresql = getPostgresqlPackage version;
             upstreamExts = map
               (ext: {
                 name = postgresql.pkgs."${ext}".pname;

nix/ext/pg_graphql.nix

@@ -16,9 +16,11 @@ buildPgrxExtension_0_11_3 rec {
   buildInputs = [ postgresql ];
 
   CARGO="${cargo}/bin/cargo";
+  #darwin env needs PGPORT to be unique for build to not clash with other pgrx extensions
   env = lib.optionalAttrs stdenv.isDarwin {
     POSTGRES_LIB = "${postgresql}/lib";
     RUSTFLAGS = "-C link-arg=-undefined -C link-arg=dynamic_lookup";
+    PGPORT = "5434";
   };
   cargoHash = "sha256-WkHufMw8OvinMRYd06ZJACnVvY9OLi069nCgq3LSmMY=";
 

nix/ext/pg_jsonschema.nix

@@ -19,9 +19,11 @@ buildPgrxExtension_0_11_3 rec {
 
   previousVersions = ["0.3.0" "0.2.0" "0.1.4" "0.1.4" "0.1.2" "0.1.1" "0.1.0"];
   CARGO="${cargo}/bin/cargo";
+  #darwin env needs PGPORT to be unique for build to not clash with other pgrx extensions
   env = lib.optionalAttrs stdenv.isDarwin {
     POSTGRES_LIB = "${postgresql}/lib";
     RUSTFLAGS = "-C link-arg=-undefined -C link-arg=dynamic_lookup";
+    PGPORT = "5433";
   };
   cargoHash = "sha256-VcS+efMDppofuFW2zNrhhsbC28By3lYekDFquHPta2g=";
 

nix/postgresql/15.nix

@@ -0,0 +1,4 @@
+import ./generic.nix {
+  version = "15.6";
+  hash = "sha256-hFUUbtnGnJOlfelUrq0DAsr60DXCskIXXWqh4X68svs=";
+}

nix/postgresql/default.nix

@@ -0,0 +1,20 @@
+self:
+let
+  #adapted from the postgresql nixpkgs package
+  versions = {
+    postgresql_15 = ./15.nix;
+  };
+
+  mkAttributes = jitSupport:
+    self.lib.mapAttrs' (version: path:
+      let
+        attrName = if jitSupport then "${version}_jit" else version;
+      in
+      self.lib.nameValuePair attrName (import path {
+        inherit jitSupport self;
+      })
+    ) versions;
+
+in
+# variations without and with JIT
+(mkAttributes false) // (mkAttributes true)